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Oyebade AO, Taiwo GA, Idowu M, Sidney T, Queiroz O, Adesogan AT, Vyas D, Ogunade IM. Effects of direct-fed microbial supplement on ruminal and plasma metabolome of early-lactation dairy cows: Untargeted metabolomics approach. J Dairy Sci 2024; 107:2556-2571. [PMID: 37939839 DOI: 10.3168/jds.2023-23876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 10/18/2023] [Indexed: 11/10/2023]
Abstract
We examined the effects of 2 multispecies direct-fed microbial (DFM) supplements on ruminal and plasma metabolome of early-lactation dairy cows using a high-coverage untargeted metabolomics approach. A total of 45 multiparous Holstein cows (41 ± 7 DIM) were enrolled for the 14-d pre-experimental and 91-d experimental period and were a subset from a lactation performance study, which used 114 cows. Cows were blocked using pre-experimental energy-corrected milk yield and randomly assigned within each block to 1 of 3 treatments: (1) corn silage-based diet with no DFM supplement (control; CON), (2) basal diet top-dressed with a mixture of Lactobacillus animalis and Propionibacterium freudenreichii at 3 × 109 cfu/d (PRO-A), or (3) basal diet top-dressed with a mixture of L. animalis, P. freudenreichii, Bacillus subtilis, and Bacillus licheniformis at 11.8 × 109 cfu/d (PRO-B). The basal diet was fed ad libitum daily as a TMR at 0600 and 1200 h for a duration of 91 d. Rumen fluid and blood samples were taken on d -3, 28, 49, 70, and 91 and immediately stored at -80°C. Before analysis, ruminal and plasma samples from d 28, 49, 70, and 91 were composited. An in-depth, untargeted metabolome profile of the composite rumen and plasma samples and the d -3 samples was developed by using a chemical isotope labeling/liquid chromatography-mass spectrometry (LC-MS)-based technique. Differentially abundant metabolites (taking into account fold change [FC] values and false discovery rates [FDR]) were identified with a volcano plot. In the rumen, compared with the CON diet, supplemental PRO-A increased (FC ≥1.2; FDR ≤0.05) the relative concentrations of 9 metabolites, including 2-hydroxy-2,4-pentadienoic acid, glutaric acid, quinolinic acid, and shikimic acid, and PRO-B increased relative concentrations of 16 metabolites, including 2-hydroxy-2,4-pentadienoic acid, glutaric acid, 16-hydroxypalmitic acid, and 2 propionate precursors (succinic and methylsuccinic acids). Relative to PRO-A, supplemental PRO-B increased (FC ≥1.2; FDR ≤0.05) relative rumen concentrations of 3 metabolites, 16-hydroxypalmitic acid, indole-3-carboxylic acid, and 5-aminopentanoic acid, but reduced relative rumen concentrations of 13 metabolites, including carnitine, threonic acid, and shikimic acid. Compared with the CON diet, relative concentrations of 13 plasma metabolites, including myxochelin A and glyceraldehyde, were increased (FC ≥1.2; FDR ≤0.05) by PRO-A supplementation, whereas those of 9 plasma metabolites, including 4-(2-aminophenyl)-2,4-dioxobutanoic acid, N-acetylornithine, and S-norlaudanosolin, were reduced (FC ≤0.83; FDR ≤0.05). Supplemental PRO-B increased (FC ≥1.2; FDR ≤0.05) relative concentrations of 9 plasma metabolites, including trans-o-hydroxybenzylidenepyruvic acid and 3-methylsalicylaldehyde, and reduced relative concentrations of 4 plasma metabolites, including β-ethynylserine and kynurenine. Pathway analysis of the differentially abundant metabolites in both rumen and plasma revealed that these metabolites are involved in AA and fatty acid metabolism and have antimicrobial and immune-stimulating properties. The results of this study demonstrated that dietary supplementation with either PRO-A or PRO-B altered the plasma and ruminal metabolome. Notably, ruminal and plasma metabolites involved in the metabolism of AA and fatty acids and those with immunomodulatory properties were altered by either or both of the 2 microbial additives.
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Affiliation(s)
- A O Oyebade
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - G A Taiwo
- Division of Animal and Nutritional Science, West Virginia University, Morgantown, WV 26506
| | - Modoluwamu Idowu
- Division of Animal and Nutritional Science, West Virginia University, Morgantown, WV 26506
| | - T Sidney
- Division of Animal and Nutritional Science, West Virginia University, Morgantown, WV 26506
| | - O Queiroz
- Chr. Hansen A/S, Animal Health and Nutrition, DK-2970 Hørsholm, Denmark
| | - A T Adesogan
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - D Vyas
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - I M Ogunade
- Division of Animal and Nutritional Science, West Virginia University, Morgantown, WV 26506.
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Sarmikasoglou E, Sumadong P, Roesch LFW, Halima S, Arriola K, Yuting Z, Jeong KCC, Vyas D, Hikita C, Watanabe T, Faciola A. Effects of cashew nut shell extract and monensin on in vitro ruminal fermentation, methane production, and ruminal bacterial community. J Dairy Sci 2024; 107:840-856. [PMID: 37730175 DOI: 10.3168/jds.2023-23669] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 08/23/2023] [Indexed: 09/22/2023]
Abstract
The objective of this study was to evaluate the effects of cashew nut shell extract (CNSE) and monensin on ruminal in vitro fermentation, CH4 production, and ruminal bacterial community structure. Treatments were as follows: control (CON, basal diet without additives); 2.5 μM monensin (MON); 0.1 mg CNSE granule/g DM (CNSE100); and 0.2 mg CNSE granule/g DM (CNSE200). Each treatment was incubated with 52 mL of buffered ruminal content and 500 mg of total mixed ration for 24 h using serum vials. The experiment was performed as a complete randomized block design with 3 runs. Run was used as a blocking factor. Each treatment had 5 replicates, in which 2 were used to determine nutrient degradability, and 3 were used to determine pH, NH3-N, volatile fatty acids, lactate, total gas, CH4 production, and bacterial community composition. Treatment responses for all data, excluding bacterial abundance, were analyzed with the GLIMMIX procedure of SAS v9.4. Treatment responses for bacterial community structure were analyzed with a PERMANOVA test run with the R package vegan. Orthogonal contrasts were used to test the effects of (1) additive inclusion (ADD: CON vs. MON, CNSE100, and CNSE200); (2) additive type (MCN: MON vs. CNSE100 and CNSE200); and (3) CNSE dose (DOS: CNSE100 vs. CNSE200). We observed that pH, acetate, and acetate:propionate ratio in the CNSE100 treatment were lower compared with CNSE200, and propionate in the CNSE100 treatment was greater compared with CNSE200. Compared with MON, CNSE treatments tended to decrease total lactate concentration. Total gas production of CON was greater by 2.63% compared with all treatments, and total CH4 production was reduced by 10.64% in both CNSE treatments compared with MON. Also, compared with MON, in vitro dry matter degradabilities in CNSE treatments were lower. No effects were observed for NH3-N or in vitro neutral detergent fiber degradability. Finally, the relative abundances of Prevotella, Treponema, and Schwartzia were lower, whereas the relative abundances of Butyrivibrio and Succinivibrio were greater in all treatments compared with CON. Overall, the inclusion of CNSE decreased CH4 production compared with MON, making CNSE a possible CH4 mitigation additive in dairy cattle diets.
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Affiliation(s)
- E Sarmikasoglou
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611
| | - P Sumadong
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611; Department of Animal Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - L F W Roesch
- Department of Microbiology and Cell Science, University of Florida, Gainesville, FL 32603
| | - S Halima
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611
| | - K Arriola
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611
| | - Z Yuting
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611
| | - K C C Jeong
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611
| | - D Vyas
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611
| | - C Hikita
- SDS Biotech K.K., Tokyo, Japan 101-0022
| | | | - A Faciola
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611.
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Oyebade AO, Lee S, Sultana H, Arriola K, Duvalsaint E, Nino De Guzman C, Fernandez Marenchino I, Marroquin Pacheco L, Amaro F, Ghedin Ghizzi L, Mu L, Guan H, Almeida KV, Rajo Andrade B, Zhao J, Tian P, Cheng C, Jiang Y, Driver J, Queiroz O, Ferraretto LF, Ogunade IM, Adesogan AT, Vyas D. Effects of direct-fed microbial supplementation on performance and immune parameters of lactating dairy cows. J Dairy Sci 2023; 106:8611-8626. [PMID: 37641244 DOI: 10.3168/jds.2022-22898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 05/29/2023] [Indexed: 08/31/2023]
Abstract
We evaluated the effects of supplementing bacterial direct-fed microbial (DFM) on performance, apparent total-tract digestibility, rumen fermentation, and immune parameters of lactating dairy cows. One hundred fourteen multiparous Holstein cows (41 ± 7 DIM) were used in a randomized complete block design with an experiment comprising 14 d of a covariate (pre-experimental sample and data collection) and 91 d of an experimental period. Cows were blocked based on energy-corrected milk (ECM) yield during the covariate period and the following treatments were randomly assigned within each block: (1) control (CON), corn silage-based total mixed ration without DFM; (2) PRO-A, basal diet top-dressed with a mixture of Lactobacillus animalis and Propionibacterium freudenreichii at 3 × 109 cfu/d; and 3) PRO-B, basal diet top-dressed with a mixture of L. animalis, P. freudenreichii, Bacillus subtilis, and Bacillus licheniformis at 11.8 × 109 cfu/d. Milk yield, dry matter intake (DMI), and body weight were measured daily, while milk samples for component analysis were taken on 2 consecutive days of each week of data collection. Feces, urine, rumen, and blood samples were taken during the covariate period, wk 4, 7, 10, and 13 for estimation of digestibility, N-partitioning, rumen fermentation, plasma nutrient status and immune parameters. Treatments had no effect on DMI and milk yield. Fat-corrected milk (3.5% FCM) and milk fat yield were improved with PRO-B, while milk fat percent and feed efficiency (ECM/DMI) tended to increase with PRO-B compared with PRO-A and CON. Crude fat digestibility was greater with PRO-B compared with CON. Feeding CON and PRO-A resulted in higher total volatile fatty acid concentration relative to PRO-B. Percentage of neutrophils tended to be reduced with PRO-A compared with CON and PRO-B. The mean fluorescence intensity (MFI) of anti-CD44 antibody on granulocytes tended to be higher in PRO-B compared with CON. The MFI of anti-CD62L antibody on CD8+ T cells was lower in PRO-A than PRO-B, with PRO-A also showing a tendency to be lower than CON. This study indicates the potential of DFM to improve fat digestibility with consequential improvement in fat corrected milk yield, feed efficiency and milk fat yield by lactating dairy cows. The study findings also indicate that dietary supplementation with DFM may augment immune parameters or activation of immune cells, including granulocytes and T cells; however, the overall effects on immune parameters are inconclusive.
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Affiliation(s)
- A O Oyebade
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - S Lee
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - H Sultana
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - K Arriola
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - E Duvalsaint
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - C Nino De Guzman
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - I Fernandez Marenchino
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - L Marroquin Pacheco
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - F Amaro
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - L Ghedin Ghizzi
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - L Mu
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - H Guan
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - K V Almeida
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - B Rajo Andrade
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - J Zhao
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - P Tian
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - C Cheng
- College of Agriculture, Communities, and the Environment, Kentucky State University, Frankfort, KY 40601
| | - Y Jiang
- College of Agriculture, Communities, and the Environment, Kentucky State University, Frankfort, KY 40601
| | - J Driver
- MU Bond Life Sciences Center, University of Missouri-Columbia, Columbia, MO 65211
| | - O Queiroz
- Chr. Hansen A/S, Animal Health and Nutrition, B⊘ge Allé 10-12, DK-2970 H⊘rsholm, Denmark
| | - L F Ferraretto
- Department of Dairy Science, University of Wisconsin-Madison, Madison, WI 53706
| | - I M Ogunade
- Division of Animal and Nutritional Science, West Virginia University, Morgantown, WV 26506
| | - A T Adesogan
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611
| | - D Vyas
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611.
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Malekkhahi M, Razzaghi A, Vyas D. Replacement of corn silage with shredded beet pulp and dietary starch concentration: Effects on performance, milk fat output, and body reserves of mid-lactation dairy cows. J Dairy Sci 2023; 106:1734-1745. [PMID: 36631317 DOI: 10.3168/jds.2022-22415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 09/25/2022] [Indexed: 01/11/2023]
Abstract
We aimed to evaluate the interaction between dietary starch concentration, varied by replacing wheat bran with dry ground corn, and replacement of corn silage (CS) with shredded beet pulp (BP) on production, milk fat output, milk fatty acid profile, and body reserves in dairy cows. Sixty-four Holstein dairy cows (140 ± 26 d in milk) were randomly assigned to 8 pens (8 animals per pen). Treatments were arranged in a 2 × 2 factorial arrangement with 2 concentrations of starch and 2 sources of fiber and were allotted to 8 pens (2 pens per treatment). Treatments were (1) 15% dry ground corn and 24% CS, (2) 15% dry ground corn and 24% BP replacing CS, (3) 30% dry ground corn and 24% CS, and (4) 30% dry ground corn and 24% BP replacing CS. The trial lasted for 47 d and final 7 d of experimental period was used for data and sample collection. Cows fed the BP-based diets had greater dry matter intake than those offered the CS-based diets, whereas no effects were observed with starch concentration. Milk yield increased by 1.8 kg/d with BP-based diets compared with CS-based diets and by 2.5 kg/d when cows received the high-starch compared with low-starch diets. Interactions between dietary starch concentration and forage substitution were detected for milk fat concentration and yield as BP inclusion lowered milk fat output with high-starch diet. Milk trans-18:1 concentration was lower with 15% dry ground corn and 24% CS compared with other diets. In conclusion, the effects of dietary starch concentration (22 and 32% dry matter) and forage substitution on production responses were independent except for milk fat output and milk trans 18:1 isomers. Substituting CS with BP is effective at increasing milk yield regardless of starch concentration; however, milk fat yield is lower when BP is used with high-starch concentration.
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Affiliation(s)
- M Malekkhahi
- Department of Animal Sciences, University of Florida, 2250 Shealy Drive, Gainesville 32601
| | - A Razzaghi
- Innovation Center, Ferdowsi University of Mashhad, 9177948974 Mashhad, Iran
| | - D Vyas
- Department of Animal Sciences, University of Florida, 2250 Shealy Drive, Gainesville 32601.
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Lee C, Beauchemin K, Dijkstra J, Morris D, Nichols K, Kononoff P, Vyas D. Estimates of daily oxygen consumption, carbon dioxide and methane emissions, and heat production for beef and dairy cattle using spot gas sampling. J Dairy Sci 2022; 105:9623-9638. [DOI: 10.3168/jds.2022-22213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 07/22/2022] [Indexed: 11/17/2022]
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Almeida K, Santos G, Daniel J, Nino-de-Guzman C, Amaro F, Sultana H, Arriola K, Araujo R, Vyas D. Effects of nitrate sources on in vitro methane production and ruminal fermentation parameters in diets differing in starch degradability. Anim Feed Sci Technol 2022. [DOI: 10.1016/j.anifeedsci.2022.115437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Ravelo AD, Vyas D, Ferraretto LF, Faciola A. Effects of sucrose and lactose as partial replacement to corn in lactating dairy cow diets. A review. Transl Anim Sci 2022; 6:txac044. [PMID: 35529037 PMCID: PMC9071093 DOI: 10.1093/tas/txac044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 04/11/2022] [Indexed: 11/13/2022] Open
Abstract
Carbohydrates are one of the three macronutrients that provides energy in diets and are classified by their structures. Starch is a nonstructural carbohydrate and polysaccharide made of glucose monomers used for storage in plant cells. When starch makes up greater than 30% of the DM in diets there can be adverse effects on NDF digestibility due to decreases in ruminal pH. Sugars are water soluble carbohydrates that consist of monosaccharide and disaccharide units. Sugars ferment faster than starch because microorganisms in the rumen can ferment carbohydrates at different rates depending on their structure; however, this has not been shown to have negative effects on the ruminal pH. Sources of sugars such as molasses (sucrose) or whey (lactose) can be included in the diet as a partial replacement for starch in dairy cow diets. The purpose of replacing starch with sugars in a diet would be to add differing sources of carbohydrates in the diet to allow for continual fermentation of carbohydrates by the microorganisms in the rumen. It has been seen in studies and previous literature that the partial replacement of starch with sugars has the potential to maintain the ruminal environment and milk yield and composition in dairy cows without reducing NDF digestibility. The objective of this review is to evaluate the effects of partially replacing starch with sugars in dairy diets and its implication on ruminal fermentation, nutrient utilization, milk production, and feeding replacement strategy.
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Affiliation(s)
- A D Ravelo
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA
| | - D Vyas
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA
| | - L F Ferraretto
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - A Faciola
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA
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Malekkhahi M, Razzaghi A, Zadeh MA, Mohammadi BS, Khosravi P, Farrokhi MR, Drackley JK, Vyas D. Evaluating the effect of finely ground, dry-rolled, and crumbled corn grain on performance, feeding behavior, and starch digestion in Holstein dairy heifers. J Dairy Sci 2022; 105:3142-3152. [PMID: 35181134 DOI: 10.3168/jds.2021-21416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/03/2022] [Indexed: 11/19/2022]
Abstract
Corn processing methods including finely ground (FGC), dry rolled (DRC), and crumbled corn (CRC) were evaluated to determine their effects on average daily gain (ADG), structural growth, starch digestibility, feeding behavior, and blood metabolites of young dairy heifers. In this study, 36 Holstein heifers [91 ± 4 d of age, 105 ± 6.5 kg of body weight (BW); mean ± standard deviation] housed in 9 pens (4 heifers per pen) were fed diets (dry matter basis) containing 20% forage (wheat straw) and 80% corn-based concentrate for 60 d. Pens were randomly assigned to 1 of 3 dietary treatments based on the type of corn grain used for the diets: (1) ground corn (FGC; fine: 1.11 ± 0.52 mm); (2) dry-rolled corn (DRC; 2.30 ± 0.68 mm); and (3) crumbled corn (CRC; 2.54 ± 0.70 mm). Heifers had ad libitum access to diets and water throughout the experiment and the feed intake was measured daily. Animals were weighed at the beginning (91 d of age) and end (151 d of age) of the study. The ADG (kg of BW/d) was calculated at the end of experiment at an individual level. Feeding behavior was recorded based on direct observation by monitoring each heifer every 5 min during a 22-h period at 150 d of age. The CRC and DRC tended to increase feed intake compared with FGC, whereas heifers fed CRC tended to have a greater withers height compared with other treatments. Feed efficiency was not affected; however, ADG and final BW increased in heifers fed the CRC diet compared with other diets. Feeding CRC increased total-tract starch digestibility compared with FGC and DRC diets (97.8 vs. 93.1 and 89.5%, respectively). Compared with FGC diet, feeding DRC and CRC tended to increase rumination time. The molar proportion of propionate was greater, and the molar proportion of acetate and acetate-to-propionate ratio were lower in heifers fed CRC than in those fed DRC. The blood glucose and insulin-like growth factor concentrations increased in heifers fed CRC compared with feeding DRC; however, blood urea concentrations decreased by CRC feeding. In conclusion, thermal processing (CRC diet) improved total-tract starch digestibility, ADG, feed intake, and skeletal growth, but had no effect on feed efficiency during the experimental period. Our results indicated that the thermal processing of corn grain improved growth performance of weaned heifers; however, the performance of heifers over a 60-d period did not differ between mechanical processing methods (grinding and dry rolling).
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Affiliation(s)
- M Malekkhahi
- Dan va Oloofeh Shargh, Animal and Poultry Feed Co., South Khorasan Province, Birjand 9719137717, Iran; Department of Animal Sciences, University of Florida, 2250 Shealy Drive, Gainesville 32601.
| | - A Razzaghi
- Innovation Center, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran.
| | - M Ahmadi Zadeh
- Astan Ghods Razavi Dairy Farm Campus, South Khorasan Province, Tabbas 191, Iran
| | - B Satlekh Mohammadi
- Dan va Oloofeh Shargh, Animal and Poultry Feed Co., South Khorasan Province, Birjand 9719137717, Iran
| | - P Khosravi
- Dan va Oloofeh Shargh, Animal and Poultry Feed Co., South Khorasan Province, Birjand 9719137717, Iran
| | - M R Farrokhi
- Dan va Oloofeh Shargh, Animal and Poultry Feed Co., South Khorasan Province, Birjand 9719137717, Iran
| | - J K Drackley
- Department of Animal Sciences, University of Illinois, Urbana 61801
| | - D Vyas
- Department of Animal Sciences, University of Florida, 2250 Shealy Drive, Gainesville 32601
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Almeida KV, Santos GT, Daniel JLP, Osorio JAC, Yamada KLG, Sippert MR, Cabral JF, Marchi FE, Araujo RC, Vyas D. Effects of calcium ammonium nitrate fed to dairy cows on nutrient intake and digestibility, milk quality, microbial protein synthesis, and ruminal fermentation parameters. J Dairy Sci 2022; 105:2228-2241. [PMID: 34998571 DOI: 10.3168/jds.2021-21124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 11/20/2021] [Indexed: 11/19/2022]
Abstract
We evaluated the effects of supplemental calcium ammonium nitrate (CAN) fed to dairy cows on dry matter (DM) intake, nutrient digestibility, milk quality, microbial protein synthesis, and ruminal fermentation. Six multiparous Holstein cows at 106 ± 14.8 d in milk, with 551 ± 21.8 kg of body weight were used in a replicated 3 × 3 Latin square design. Experimental period lasted 21 d, with 14 d for an adaptation phase and 7 d for sampling and data collection. Cows were randomly assigned to receive the following treatments: URE, 12 g of urea/kg of DM as a control group; CAN15, 15 g of CAN/kg of DM; and CAN30, 30 g of CAN/kg of DM. Supplemental CAN reduced DM intake (URE 19.0 vs. CAN15 18.9 vs. CAN30 16.5 kg/d). No treatment effects were observed for apparent digestibility of DM, organic matter, crude protein, ether extract, and neutral detergent fiber; however, CAN supplementation linearly increased nonfiber carbohydrate digestibility. Milk yield was not affected by treatments (average = 23.1 kg/d), whereas energy-corrected milk (ECM) and 3.5% fat-corrected milk (FCM) decreased as the levels of CAN increased. Nitrate residue in milk increased linearly (URE 0.30 vs. CAN15 0.33 vs. CAN30 0.38 mg/L); however, treatments did not affect nitrite concentration (average: 0.042 mg/L). Milk fat concentration was decreased (URE 3.39 vs. CAN15 3.35 vs. CAN30 2.94%), and the proportion of saturated fatty acids was suppressed by CAN supplementation. No treatment effects were observed on the reducing power and thiobarbituric acid reactive substances of milk, whereas conjugated dienes increased linearly (URE 47.6 vs. CAN15 52.7 vs. CAN30 63.4 mmol/g of fat) with CAN supplementation. Treatments had no effect on microbial protein synthesis; however, molar proportion of ruminal acetate and acetate-to-propionate ratio increased with CAN supplementation. Based on the results observed, supplementing CAN at 30 g/kg of DM should not be recommended as an optimal dose because it lowered DM intake along with ECM and 3.5% FCM, although no major changes were observed on milk quality and ruminal fermentation.
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Affiliation(s)
- K V Almeida
- Department of Animal Sciences, State University of Maringa, Maringa, Brazil 87020-900; Department of Agriculture, Nutrition, and Food Systems, University of New Hampshire, Durham 03824
| | - G T Santos
- Department of Animal Sciences, State University of Maringa, Maringa, Brazil 87020-900
| | - J L P Daniel
- Department of Animal Sciences, State University of Maringa, Maringa, Brazil 87020-900
| | - J A C Osorio
- Department of Animal Sciences, State University of Maringa, Maringa, Brazil 87020-900
| | - K L G Yamada
- Department of Animal Sciences, State University of Maringa, Maringa, Brazil 87020-900
| | - M R Sippert
- Department of Animal Sciences, State University of Maringa, Maringa, Brazil 87020-900
| | - J F Cabral
- Department of Animal Sciences, State University of Maringa, Maringa, Brazil 87020-900
| | - F E Marchi
- Department of Animal Sciences, State University of Maringa, Maringa, Brazil 87020-900
| | - R C Araujo
- GRASP Ind. & Com. Ltda., Curitiba, Brazil 81260-000
| | - D Vyas
- Department of Animal Sciences, University of Florida, Gainesville 32611.
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10
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Ravelo AD, Calvo Agustinho B, Arce-Cordero J, Monterio HF, Bennet SL, Sarmikasoglou E, Vinyard J, Vieira ERQ, Lobo RR, Ferraretto LF, Vyas D, Faciola A. Effects of partially replacing dietary corn with molasses, condensed whey permeate, or treated condensed whey permeate on ruminal microbial fermentation. J Dairy Sci 2021; 105:2215-2227. [PMID: 34955246 DOI: 10.3168/jds.2021-20818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 10/18/2021] [Indexed: 11/19/2022]
Abstract
Corn is a feedstuff commonly fed to dairy cows as a source of energy. The objective of this study was to evaluate whether partially replacing dietary corn with molasses or condensed whey permeate, in lactating dairy cow diets in a dual-flow continuous culture system, can maintain nutrient digestibility by ruminal microorganisms. Furthermore, this study evaluated whether treating condensed whey permeate before feeding could aid the fermentation of the condensed whey permeate in the rumen. Eight fermentors were used in a 4 × 4 replicated Latin square with 4 periods of 10 d each. The control diet (CON) was formulated with corn grain, and the other diets were formulated by replacing corn grain with either sugarcane molasses (MOL), condensed whey permeate (CWP), or treated condensed whey permeate (TCWP). Diets were formulated by replacing 4% of the diet dry matter (DM) in the form of starch from corn with sugars from the byproducts. Sugars were defined as water-soluble carbohydrates (WSC) in the rations. The fermentors were fed 52 g of DM twice daily of diets containing 17% crude protein, 28% neutral detergent fiber, and 45% nonfiber carbohydrates. Liquid treatments were pipetted into each fermentor. After 7 d of adaptation, samples were collected for analyses of volatile fatty acids (VFA), lactate, and ammonia, and fermentors' pH were measured at time points after the morning feeding for 3 d. Pooled samples from effluent containers were collected for similar analyses, nutrient flow, and N metabolism. Data were statistically analyzed using Proc MIXED of SAS version 9.4 (SAS Institute Inc.); fixed effects included treatment and time, and random effects included fermentor, period, and square. The interaction of treatment and time was included for the kinetics samples. The TCWP and MOL treatments maintained greater fermentor pH compared with CWP. Total VFA concentration was increased in CWP compared with MOL. The acetate:propionate ratio was increased in TCWP compared with CON, due to tendencies of increased acetate molar proportion and decreased propionate molar proportion in TCWP. Lactate concentration was increased in MOL. Digestibility of WSC was increased in the diets that replaced corn with byproducts. The partial replacement of 4% of DM from corn starch with the sugars in byproducts had minimal effects on ruminal microbial fermentation and increased pH. Treated CWP had similar effects to molasses.
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Affiliation(s)
- A D Ravelo
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - B Calvo Agustinho
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - J Arce-Cordero
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - H F Monterio
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - S L Bennet
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - E Sarmikasoglou
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - J Vinyard
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - E R Q Vieira
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - R R Lobo
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - L F Ferraretto
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison 53706
| | - D Vyas
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A Faciola
- Department of Animal Sciences, University of Florida, Gainesville 32611.
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11
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Amaro FX, Kim D, Restelatto R, Carvalho P, Arriola K, Duvalsaint EJC, Cervantes AP, Jiang Y, Agarussi MCN, Silva VP, Adesogan AT, Ferraretto LF, Staples CR, Eun JS, Moon JO, Vyas D. Lactational performance of dairy cows in response to supplementing N-acetyl-l-methionine as source of rumen-protected methionine. J Dairy Sci 2021; 105:2301-2314. [PMID: 34955263 DOI: 10.3168/jds.2021-21068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 11/01/2021] [Indexed: 11/19/2022]
Abstract
The objective of this experiment was to evaluate the effects of supplementing a rumen-protected source of Met, N-acetyl-l-methionine (NALM), on lactational performance and nitrogen metabolism in early- to mid-lactation dairy cows. Sixty multiparous Holstein dairy cows in early lactation (27 ± 4.3 d in milk, SD) were assigned to 4 treatments in a randomized complete block design. Cows were blocked by actual milk yield. Treatments were as follows: (1) no NALM (control); (2) 15 g/d of NALM (NALM15); (3) 30 g/d of NALM (NALM30); and (4) 45 g/d of NALM (NALM45). Diets were formulated using a Cornell Net Carbohydrate and Protein System (CNCPS) v.6.5 model software to meet or exceed nutritional requirements of lactating dairy cows producing 42 kg/d of milk and to undersupply metabolizable Met (control) or supply incremental amounts of NALM. The digestible Met (dMet) supply for control, NALM15, NALM30, and NALM45 were 54.7, 59.8, 64.7, and 72.2 g/d, respectively. The supply of dMet was 88, 94, 104, and 115% of dMet requirement for control, NALM15, NALM30, and NALM45, respectively. Milk yield data were collected, dry matter intake (DMI) was measured daily, and milk samples were collected twice per week for 22 wk. Blood, ruminal fluid, urine, and fecal samples were collected during the covariate period and during wk 4, 8, and 16. Data were analyzed using the GLIMMIX procedure of SAS (SAS Institute) using covariates in the model for all variables except body weight. Linear, quadratic, and cubic contrasts were also tested. Treatments did not affect DMI, milk yield, and milk component concentration and yield; however, feed efficiency expressed as milk yield per DMI and 3.5% fat-corrected milk per DMI were quadratically affected, with greater response observed for NALM15 and NALM30 compared with control. Acetate proportion linearly increased, whereas propionate proportion linearly decreased with NALM supplementation. Blood urea nitrogen linearly decreased with NALM supplementation. Total plasma essential AA concentrations were quadratically affected, as greater values were observed for control and NALM45 than other treatments. Plasma Met concentration was quadratically affected as lower levels were observed with NALM15, whereas Met concentrations increased with NALM45 compared with control. Nitrogen utilization efficiency and apparent total-tract nutrient digestibility were not affected by treatment. Supplementation of NALM at 15 or 30 g/head per day resulted in the greatest improvements in feed efficiency without affecting N metabolism of early- to mid-lactation dairy cows.
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Affiliation(s)
- F X Amaro
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - D Kim
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - R Restelatto
- Department of Animal Sciences, University of Florida, Gainesville 32611; Universidade Federal do Parana, Curitiba, PR, 80060, Brazil
| | - P Carvalho
- Department of Animal Sciences, University of Florida, Gainesville 32611; Institute of Agriculture and Environmental Sciences, Federal University of Mato Grosso, Sinop, MT, 78557, Brazil
| | - K Arriola
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - E J C Duvalsaint
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A P Cervantes
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - Y Jiang
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - M C N Agarussi
- Department of Animal Sciences, University of Florida, Gainesville 32611; Universidade Federal de Vicosa, Vicosa, MG, 36570, Brazil
| | - V P Silva
- Department of Animal Sciences, University of Florida, Gainesville 32611; Universidade Federal de Vicosa, Vicosa, MG, 36570, Brazil
| | - A T Adesogan
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - L F Ferraretto
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison 53706
| | - C R Staples
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - J-S Eun
- BIO Research Institute, CJ CheilJedang, Suwon, 04560, South Korea
| | - J O Moon
- BIO Research Institute, CJ CheilJedang, Suwon, 04560, South Korea
| | - D Vyas
- Department of Animal Sciences, University of Florida, Gainesville 32611.
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12
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Malekkhahi M, Vyas D, Bazgir A, Bagheri F, Norouzi Ebdalabadi M, Razzaghi A. Increased super-conditioning temperature of corn grain affects performance, skeletal growth, and blood metabolites in Holstein dairy calves. J Dairy Sci 2021; 104:12486-12495. [PMID: 34538495 DOI: 10.3168/jds.2021-20858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 08/13/2021] [Indexed: 11/19/2022]
Abstract
We aimed to evaluate the effects of feeding super-conditioned corn at different temperatures on intake, growth performance, total-tract starch digestibility, rumen fermentation, blood metabolites, and feeding behavior of dairy calves. Thirty-six Holstein female dairy calves (40 ± 1.72 kg of body weight, ± SD) were randomly assigned to 1 of the following 3 treatments: (1) ground corn (control; CON; n = 12), (2) corn super-conditioned at 75°C (T-75; n = 12), and (3) corn super-conditioned at 95°C (T-95; n = 12). Three mash starter feeds with an identical nutritional composition were blended with 5% chopped alfalfa hay and fed to individually-housed calves from d 3 to 77 of their birth. All calves were fed 4 L/d of pasteurized whole milk twice daily since d 3 to 56, followed by 2 L/d of morning feeding from d 57 to 63 of age. Calves were weaned on d 63 and remained in the study until d 77. The T-75 and T-95 diets increased total-tract starch digestibility compared with the CON diet. Dry matter intake and weaning or final BW were not affected by treatments; however, average daily gain and feed efficiency increased in calves fed T-95 in the overall period. The T-95 diet increased withers height and tended to increase hip height compared with other diets, but feeding behavior did not change throughout the experimental period. Ruminal pH decreased in calves fed the T-95 diet compared with T-75 and CON diets. The molar proportion of ruminal propionate increased, whereas the acetate-to-propionate ratio tended to decrease in calves fed the T-95 compared with CON diet. Calves fed the T-95 diet had the highest blood glucose concentration, whereas a trend for increased insulin concentration was observed in calves fed T-95 compared with other diets. In conclusion, super-conditioning temperature of corn (T-95 vs. T-75 and CON) improved the average daily gain, feed efficiency, and skeletal growth, but did not influence dry matter intake during the first 77 d of age. Finally, the total-tract starch digestibility increased, whereas ruminal pH dropped during the postweaning period as super-conditioning temperature elevated.
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Affiliation(s)
- M Malekkhahi
- Dordaneh Khorasan-e-Razavi Animal and Poultry Feed Co., Mashhad 917794883, Iran; Department of Animal Sciences, University of Florida, 2250 Shealy Drive, Gainesville 32601.
| | - D Vyas
- Department of Animal Sciences, University of Florida, 2250 Shealy Drive, Gainesville 32601
| | - A Bazgir
- Asiab Machine Iranian Industrial Manufacturing Group, Tehran 1386114311, Iran
| | - F Bagheri
- Dordaneh Khorasan-e-Razavi Animal and Poultry Feed Co., Mashhad 917794883, Iran
| | - M Norouzi Ebdalabadi
- Department of Animal Science, Agricultural and Natural Resources Research and Education Center of Khorasan-e-Razavi, Mashhad 91735-488, Iran
| | - A Razzaghi
- Production Systems, Natural Resources Institute Finland (Luke), Jokioinen 31600, Finland.
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13
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Pech-Cervantes AA, Ogunade IM, Jiang Y, Estrada-Reyes ZM, Arriola KG, Amaro FX, Staples CR, Vyas D, Adesogan AT. Effects of a xylanase-rich enzyme on intake, milk production, and digestibility of dairy cows fed a diet containing a high proportion of bermudagrass silage. J Dairy Sci 2021; 104:7671-7681. [PMID: 33814135 DOI: 10.3168/jds.2020-19340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 11/16/2020] [Indexed: 11/19/2022]
Abstract
We previously reported that milk production in dairy cows was increased by adding a specific xylanase-rich exogenous fibrolytic enzyme (XYL) to a total mixed ration (TMR) containing 10% bermudagrass silage (BMD). Two follow-up experiments were conducted to examine whether adding XYL would increase the performance of dairy cows consuming a TMR containing a higher (20%) proportion of BMD (Experiment 1) and to evaluate the effects of XYL on in vitro fermentation and degradability of the corn silage, BMD, and TMR (Experiment 2). In Experiment 1, 40 lactating Holstein cows in early lactation (16 multiparous and 24 primiparous; 21 ± 3 d in milk; 589 ± 73 kg of body weight) were blocked by milk yield and parity and randomly assigned to the Control and XYL treatments. The TMR contained 20% BMD, 25% corn silage, 8% wet brewer's grain, and 47% concentrate mixture in the dry matter (DM). Cows were fed the XYL-treated or untreated experimental TMR twice per day for 10 wk after a 9-d covariate period. In Experiment 2, ruminal fluid was collected from 3 cannulated lactating Holstein cows fed a diet containing 20% bermudagrass haylage, 25% corn silage and 55% concentrate. In Experiment 1, compared with Control, application of XYL did not affect DM intake (24.0 vs. 23.7 kg/d), milk yield (35.1 vs. 36.2 kg/d), fat-corrected milk yield (36.1 vs. 36.9 kg/d), or yields of milk fat (1.29 vs. 1.31 kg/d) or protein (1.07 vs. 1.08 kg/d). However, intake of neutral detergent fiber (4.67 vs. 4.41 kg/d) tended to increase with XYL; consequently, milk protein concentration was increased by XYL (3.02 vs. 2.95%). Feed efficiency tended to be lower in cows fed XYL (1.57 vs. 1.52 kg of fat-corrected milk/kg of DM intake) compared with Control. In Experiment 2, XYL tended to increase the rate of gas production in the TMR, the molar proportion of propionate for corn silage, and that of valerate for the TMR. In addition, XYL increased in vitro DM, neutral detergent fiber, and acid detergent fiber degradability of BMD and corn silage. Application of XYL to a diet with a relatively high proportion of BMD tended to increase digestible neutral detergent fiber intake, increased milk protein concentration, and in vitro degradability of DM, neutral detergent fiber, and acid detergent fiber. However, XYL did not affect milk production and tended to decrease feed efficiency in early lactation cows.
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Affiliation(s)
| | - I M Ogunade
- Division of Animal and Nutritional Sciences, West Virginia University, Morgantown 26505
| | - Y Jiang
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - Z M Estrada-Reyes
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - K G Arriola
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - F X Amaro
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - C R Staples
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - D Vyas
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A T Adesogan
- Department of Animal Sciences, University of Florida, Gainesville 32611.
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14
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Malekkhahi M, Naserian AA, Rahimi A, Bazgir A, Vyas D, Razzaghi A. Effects of ground, steam-flaked, and super-conditioned corn grain on production performance and total-tract digestibility in dairy cows. J Dairy Sci 2021; 104:6756-6767. [PMID: 33773788 DOI: 10.3168/jds.2020-19202] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 01/24/2021] [Indexed: 11/19/2022]
Abstract
This study aimed to evaluate the effects of feeding ground, steam-flaked, or super-conditioned corn on production performance, rumen fermentation, nutrient digestibility, and milk fatty acid (FA) profile of lactating dairy cows. Twenty-four lactating Holstein cows (130 ± 12 d in milk) in a completely randomized block design experiment were assigned to 1 of 3 treatments that contained 31% of one of the following corn types: (1) ground corn; (2) steam-flaked corn; and (3) super-conditioned corn. Actual milk yield was greater in the super-conditioned corn diet than in the steam-flaked and ground corn diets. Dry matter intake, 3.5% fat-corrected milk and energy-corrected milk remained unaffected by treatments; however, milk fat concentration decreased in the super-conditioned corn diet compared with the ground and steam-flaked corn diets. The molar proportion of ruminal acetate decreased in the super-conditioned corn diet compared with the ground and steam-flaked corn diets, whereas the molar proportion of propionate spiked in the super-conditioned corn diet. Ruminal pH dropped in cows fed super-conditioned corn compared with the other 2 diets. A similar pattern was observed for ruminal NH3-N and acetate-to-propionate ratio. Total-tract starch digestibility increased the most in the super-conditioned corn diet followed by the steam-flaked and ground corn diets (96.8, 95.1, and 92.5%, respectively). The neutral detergent fiber digestibility declined in cows fed the super-conditioned corn diet as opposed to other diets (~3.9%). The concentrations of 16:0 and mixed-FA in milk fat dropped in the super-conditioned corn-based diet compared with the ground corn diet. Milk trans-10 18:1 FA increased, whereas trans-11 18:1 FA decreased in cows fed the super-conditioned diet. We concluded that super-conditioned corn has the potential to increase milk yield and starch digestibility in lactating dairy cows; however, reduced milk fat output caused by altering ruminal pH and ruminal FA biohydrogenation pathways may not be desirable in certain markets. Future research is warranted to investigate how super-conditioned corn affects feed efficiency.
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Affiliation(s)
- M Malekkhahi
- Innovation Center, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran.
| | - A A Naserian
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, PO Box 9177948974, Mashhad 9177948978, Iran
| | - A Rahimi
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, PO Box 9177948974, Mashhad 9177948978, Iran
| | - A Bazgir
- Asiab Machine Iranian Industrial Manufacturing Group, Tehran 1386114311, Iran
| | - D Vyas
- Department of Animal Sciences, University of Florida, 2250 Shealy Drive, Gainesville 32601
| | - A Razzaghi
- Innovation Center, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran
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15
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Zhang Y, Ke W, Vyas D, Adesogan A, Franco M, Li F, Bai J, Guo X. Antioxidant status, chemical composition and fermentation profile of alfalfa silage ensiled at two dry matter contents with a novel Lactobacillus plantarum strain with high-antioxidant activity. Anim Feed Sci Technol 2021. [DOI: 10.1016/j.anifeedsci.2020.114751] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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16
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Adesogan AT, Auerbach H, Bernardes TF, Bolsen KK, Borreani G, Cai Y, Coblentz WK, Daniel JLP, Davies DR, Driehuis F, Ferraretto LF, Grant RJ, Huhtanen P, Kung L, McAllister TA, Muck RE, Nadeau EMG, Nishino N, Nussio LG, Rinne M, Shaver RD, Südekum KH, Tabacco E, Vyas D, Weinberg Z, Weiß K. Letter to the Editor: Silage manuscripts in the Journal of Dairy Science. J Dairy Sci 2020; 103:6737-6738. [PMID: 32690207 DOI: 10.3168/jds.2020-18359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 04/20/2020] [Indexed: 11/19/2022]
Affiliation(s)
- A T Adesogan
- Department of Animal Sciences, University of Florida, Gainesville 32611.
| | - H Auerbach
- International Silage Consultancy, Brachwitz 06193, Germany
| | - T F Bernardes
- Department of Animal Science, Federal University of Lavras, Lavras, 37200-000, Brazil
| | - K K Bolsen
- Silage Safety Foundation, 6106 Tasajillo Trail, Austin, TX 78739; Department of Animal Sciences and Industry, Kansas State University, Manhattan 66502
| | - G Borreani
- Department of Agricultural, Forest and Food Sciences (DISAFA), University of Turin, Largo P. Braccini 2, 10095, Grugliasco (Turin), Italy
| | - Y Cai
- Japan International Research Center for Agricultural Sciences (JIRCAS), 1-1 Ohwashi, Tsukuba, Ibaraki 305-8686, Japan
| | - W K Coblentz
- USDA-Agricultural Research Service, US Dairy Forage Research Center, Marshfield, WI 54449
| | - J L P Daniel
- Department of Animal Science, State University of Maringá, Maringá, 87020-900, Brazil
| | - D R Davies
- Rothamstead Research, North Wyke, EX20 2SB, United Kingdom
| | - F Driehuis
- NIZO Food Research, PO Box 20, NL-6710 BA Ede, the Netherlands
| | - L F Ferraretto
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - R J Grant
- William H. Miner Agricultural Research Institute, Chazy, NY 12921
| | - P Huhtanen
- Department of Agricultural Research for Northern Sweden, Swedish University of Agricultural Sciences, Umea, S-90183, Sweden
| | - L Kung
- Department of Animal and Food Sciences, University of Delaware, Newark 19716
| | - T A McAllister
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB, Canada T1J 4B1
| | - R E Muck
- US Dairy Forage Research Center, USDA, Agricultural Research Service, Madison, WI 53706
| | - E M G Nadeau
- Department of Animal Environment and Health, Swedish University of Agricultural Sciences, 532 23 Skara, Sweden
| | - N Nishino
- Graduate School of Life and Environmental Science, Okayama University, Okayama 700-8530, Japan
| | - L G Nussio
- Department of Animal Science, University of São Paulo, Luiz de Queiroz College of Agriculture, Piracicaba, 13418-900, Brazil
| | - M Rinne
- Natural Resources Institute Finland (Luke), Animale, FI-31600 Jokioinen, Finland
| | - R D Shaver
- Department of Dairy Science, University of Wisconsin, Madison 53706
| | - K H Südekum
- Institute of Animal Science, University of Bonn, 53115 Bonn, Germany
| | - E Tabacco
- Department of Agricultural, Forest and Food Sciences (DISAFA), University of Turin, Largo P. Braccini 2, 10095, Grugliasco (Turin), Italy
| | - D Vyas
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - Z Weinberg
- Department of Food Science, Agricultural Research Organization, the Volcani Center, Bet Dagan, 50250, Israel
| | - K Weiß
- Humboldt-Universität zu Berlin, Invalidenstr.42 (Hauptgebäude), 10115 Berlin, Germany
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17
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Tian P, Vyas D, Niu D, Zuo S, Jiang D, Xu C. Effects of calcium carbonate on the fermentation quality and aerobic stability of total mixed ration silage. J Anim Feed Sci 2020. [DOI: 10.22358/jafs/124047/2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Arce-Cordero JA, Monteiro HF, Lelis AL, Lima LR, Restelatto R, Brandao VLN, Leclerc H, Vyas D, Faciola AP. Copper sulfate and sodium selenite lipid-microencapsulation modifies ruminal microbial fermentation in a dual-flow continuous-culture system. J Dairy Sci 2020; 103:7068-7080. [PMID: 32505403 DOI: 10.3168/jds.2019-17913] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 03/31/2020] [Indexed: 11/19/2022]
Abstract
Undesirable interactions between trace mineral elements and ruminal contents may occur during digestion when mineral salts are supplemented. Antimicrobial effects of copper sulfate (CuSO4) may affect ruminal digestibility of nutrients when fed as a source of copper (Cu), while sodium selenite (Na2SeO3) may be reduced in the rumen to less available forms of selenium (Se). Our objective was to evaluate if protection of CuSO4 and Na2SeO3 by lipid-microencapsulation would induce changes on ruminal microbial fermentation. We used 8 fermentors in a dual-flow continuous-culture system in a 4 × 4 duplicated Latin square with a 2 × 2 factorial arrangement of treatments. Factors were CuSO4 protection (unprotected and protected by lipid-microencapsulation) and Na2SeO3 protection (unprotected and protected by lipid-microencapsulation). Treatments consisted of supplementation with 15 mg/kg of Cu and 0.3 mg/kg of Se from either unprotected or protected (lipid-microencapsulated) sources, as follows: (1) Control (unprotected CuSO4 + unprotected Na2SeO3); (2) Cu-P (protected CuSO4 + unprotected Na2SeO3); (3) Se-P (unprotected CuSO4 + protected Na2SeO3); (4) (Cu+Se)-P (protected CuSO4 + protected Na2SeO3). All diets had the same nutrient composition and fermentors were fed 106 g of dry matter/d. Each experimental period was 10 d (7 d of adaptation and 3 d for sample collections). Daily pooled samples of effluents were analyzed for pH, NH3-N, nutrient digestibility, and flows (g/d) of total N, NH3-N, nonammonia N (NAN), bacterial N, dietary N, and bacterial efficiency. Kinetics of volatile fatty acids was analyzed in samples collected daily at 0, 1, 2, 4, 6, and 8 h after feeding. Main effects of Cu protection, Se protection, and their interaction were tested for all response variables. Kinetics data were analyzed as repeated measures. Protection of Cu decreased acetate molar proportion, increased butyrate proportion, and tended to decrease acetate:propionate ratio in samples of kinetics, but did not modify nutrient digestibility. Protection of Se tended to decrease NH3-N concentration, NH3-N flow, and CP digestibility; and to increase flows of nonammonia N and dietary N. Our results indicate that protection of CuSO4 may increase butyrate concentration at expenses of acetate, while protection of Na2SeO3 tended to reduce ruminal degradation of N. Further research is needed to determine the effects of lipid-microencapsulation on intestinal absorption, tissue distribution of Cu and Se, and animal performance.
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Affiliation(s)
- J A Arce-Cordero
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - H F Monteiro
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A L Lelis
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - L R Lima
- Department of Animal Sciences, Federal University of Mato Grosso, Cuiaba, MT, 78060-900, Brazil
| | - R Restelatto
- Department of Animal Sciences, Federal University of Parana, Curitiba, PR, 80060-000, Brazil
| | - V L N Brandao
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - H Leclerc
- JEFO Nutrition Inc., St. Hyacinthe, QC J2R 2E7, Canada
| | - D Vyas
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A P Faciola
- Department of Animal Sciences, University of Florida, Gainesville 32611.
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McCary CL, Vyas D, Faciola AP, Ferraretto LF. Graduate Student Literature Review: Current perspectives on whole-plant sorghum silage production and utilization by lactating dairy cows. J Dairy Sci 2020; 103:5783-5790. [PMID: 32307165 DOI: 10.3168/jds.2019-18122] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 02/19/2020] [Indexed: 11/19/2022]
Abstract
The purpose of this literature review is to evaluate current research into and understanding of whole-plant sorghum silage production and the effect of feeding whole-plant sorghum silage on lactation performance of dairy cows. Sorghum's drought tolerance, water efficiency, and low cost of production make it an intriguing crop in areas where whole-plant corn silage production may be limited. Currently, urban land encroachment and reduced water availability have increased social and economic pressures on farms to improve crop production efficiency. As these challenges become more prevalent, greater reliance on sorghum can be expected because of its ability to produce high dry matter yields while maintaining nutritive value, even under less-than-ideal growing conditions. Moreover, whole-plant sorghum silage provides both physically effective fiber and energy through fiber and grain fractions. Advancements in sorghum genetics and mechanical processing have the potential to alleviate common challenges associated with whole-plant sorghum silage supplementation, such as increased neutral detergent fiber and decreased neutral detergent fiber digestibility, starch concentration, and starch digestibility. These nutritive challenges must be overcome for whole-plant sorghum silage to be a viable alternative to whole-plant corn silage.
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Affiliation(s)
- C L McCary
- Department of Animal Science, University of Florida, Gainesville 32611.
| | - D Vyas
- Department of Animal Science, University of Florida, Gainesville 32611
| | - A P Faciola
- Department of Animal Science, University of Florida, Gainesville 32611
| | - L F Ferraretto
- Department of Animal Science, University of Florida, Gainesville 32611
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Jiang Y, Ogunade I, Pech-Cervantes A, Fan P, Li X, Kim D, Arriola K, Poindexter M, Jeong K, Vyas D, Adesogan A. Effect of sequestering agents based on a Saccharomyces cerevisiae fermentation product and clay on the ruminal bacterial community of lactating dairy cows challenged with dietary aflatoxin B1. J Dairy Sci 2020; 103:1431-1447. [DOI: 10.3168/jds.2019-16851] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 09/26/2019] [Indexed: 11/19/2022]
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21
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Jiang Y, Ogunade IM, Arriola KG, Pech-Cervantes AA, Kim DH, Li X, Xue YL, Vyas D, Adesogan AT. Short communication: Effects of a physiologically relevant concentration of aflatoxin B 1 with or without sequestering agents on in vitro rumen fermentation of a dairy cow diet. J Dairy Sci 2019; 103:1559-1565. [PMID: 31785870 DOI: 10.3168/jds.2019-17318] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 10/14/2019] [Indexed: 01/15/2023]
Abstract
Aflatoxin is a potent carcinogen commonly found in animal feeds that can impair rumen fermentation at high concentrations; however, its effects at physiologically relevant concentrations are unknown. This study examined the effects of aflatoxin B1 (AFB1), with or without bentonite clay (CL) and Saccharomyces cerevisiae fermentation product (SCFP)-based sequestering agents on in vitro rumen fermentation and digestibility of a dairy cow TMR. Corn silage-based TMR (0.5 g, 17.3% crude protein and 1.67 Mcal/kg of net energy for lactation) was incubated in a rumen fluid-buffer inoculum (1:2 ratio; 50 mL) with the following treatments: (1) no additives (control); (2) control + 0.75 µg/L AFB1 (T); (3) T + 80 mg/L sodium bentonite clay (CL; Astra-Ben-20, Prince Agri Products Inc., Quincy, IL); or (4) CL + 14 mg/L SCFP (CL+SCFP; Diamond V, Cedar Rapids, IA). Ruminal fluid was collected 3 h after the morning feeding from 3 cannulated cows fed the same TMR, and rumen fluid from individual cows was used to prepare separate inocula. Each treatment was incubated in duplicate at 39°C for 0, 4, 8, 16, and 24 h in each of 3 runs. Adding T reduced total volatile fatty acid (VFA) concentration after 4 and 8 h and molar proportion of propionate after 4 and 24 h of incubation relative to control. Adding sequestering agents (CL and CL+SCFP) with T did not affect total VFA concentration after 4 or 8 h, but increased total VFA after 16 h and tended to increase molar proportion of propionate after 24 h compared with T. At 24 h, T had lower DM digestibility and higher NH3-N concentration compared with the control. Thus, AFB1, even at very low concentration (0.75 µg/L), had detrimental effects on rumen fermentation and subsequently DM digestibility of the TMR. Adding sequestering agents did not prevent negative effects of T on rumen fermentation within 8 h of incubation; however, sequestering agents were effective after 16 h of incubation.
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Affiliation(s)
- Y Jiang
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - I M Ogunade
- Department of Animal Sciences, University of Florida, Gainesville 32611; Division of Food and Animal Science, Kentucky State University, Frankfort 40601
| | - K G Arriola
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | | | - D H Kim
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - X Li
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - Y L Xue
- Inner Mongolia Academy of Agricultural and Animal Husbandry Science, Hohhot, 010031, China
| | - D Vyas
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A T Adesogan
- Department of Animal Sciences, University of Florida, Gainesville 32611.
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22
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Jiang Y, Hansen PJ, Xiao Y, Amaral TF, Vyas D, Adesogan AT. Aflatoxin compromises development of the preimplantation bovine embryo through mechanisms independent of reactive oxygen production. J Dairy Sci 2019; 102:10506-10513. [PMID: 31521360 DOI: 10.3168/jds.2019-16839] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 07/11/2019] [Indexed: 01/12/2023]
Abstract
Aflatoxin is a potent carcinogen often found in animal feedstuffs. Although it reportedly impairs development of the preimplantation pig embryo, it is not known whether it adversely affects development of the preimplantation bovine embryo. We conducted 3 experiments to investigate this possibility and determine whether deleterious effects of aflatoxin were caused by increased production of reactive oxygen species (ROS). Experiments were conducted with embryos produced in vitro and cultured after fertilization with various concentrations of aflatoxin. For experiment 1, embryos were treated with 0 (control), 40, 400, or 4,000 µg/L of aflatoxin B1 (AFB1). Treatment at all concentrations of AFB1 tended to reduce cleavage rate, with the 2 highest concentrations having significant effects. As compared with the control, 40 µg/L AFB1 reduced the percentage of oocytes becoming blastocysts and the percentage of cleaved embryos becoming blastocysts (19.7 vs. 8.1% and 30.3 vs. 14.3%, respectively). Complete inhibition of blastocyst formation occurred at concentrations of 400 and 4,000 µg/L of AFB1. Experiments 2 and 3 involved a 2 × 2 factorial design with effects of AFB1 (0 and 40 µg/L), the antioxidant Trolox (6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid, a water-soluble analog of vitamin E; 0 and 5 µM), and their interaction on production of ROS in putative zygotes (experiment 2) and development to the blastocyst stage (experiment 3). Production of ROS was increased by AFB1, and this effect was reversed by Trolox. However, Trolox did not prevent the reduction in development to the blastocyst stage caused by AFB1. Thus, the anti-developmental effects of AFB1 are not caused solely by increased ROS production. Rather, other underlying mechanisms exist for the adverse effects of aflatoxin on embryonic development. Overall, results indicate the potential for feeding aflatoxin-contaminated feed to cause embryonic loss in cattle.
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Affiliation(s)
- Y Jiang
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - P J Hansen
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - Y Xiao
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - T F Amaral
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - D Vyas
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A T Adesogan
- Department of Animal Sciences, University of Florida, Gainesville 32611.
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23
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Pech-Cervantes AA, Muhammad I, Ogunade IM, Jiang Y, Kim DH, Gonzalez CF, Hackmann TJ, Oliveira AS, Vyas D, Adesogan AT. Exogenous fibrolytic enzymes and recombinant bacterial expansins synergistically improve hydrolysis and in vitro digestibility of bermudagrass haylage. J Dairy Sci 2019; 102:8059-8073. [PMID: 31326164 DOI: 10.3168/jds.2019-16339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 05/07/2019] [Indexed: 11/19/2022]
Abstract
Four experiments were conducted to examine the effects of a recombinant bacterial expansin-like protein (BsEXLX1) from Bacillus subtilis and a commercial exogenous fibrolytic enzyme (EFE) preparation for ruminants on hydrolysis of pure substrates (cellulose and xylan) and in vitro digestibility of bermudagrass haylage (BMH). Recombinant Escherichia coli BL21 strain was used to express BsEXLX1; the protein was purified using an affinity column. In experiment 1, carboxymethylcellulose, Whatman #1 filter paper (General Electric, Boston, MA) and oat-spelt xylan substrates were subjected to 4 treatments (1) sodium citrate buffer (control), (2) BsEXLX1 (162 µg/g of substrate), (3) EFE (2.3 mg/g of substrate), and (4) EFE + BsELX1 in 3 independent runs. Samples were incubated at optimal conditions for both additives (pH 5 and 50°C) or at ruminal (pH 6 and 39°C) or ambient (pH 6 and 25°C) conditions for 24 h and sugar release was measured. In experiment 2, digestibility in vitro of BMH was examined after treatment with the following: (1) control (buffer only), (2) BsEXLX1 (162 µg/g of dry matter), (3) EFE (2.2 mg/g of dry matter), and (4) EFE + BsEXLX1 in 3 independent runs at 39°C for 24 h. Experiment 3 examined effects of EFE and BsEXLX1 on simulated preingestive hydrolysis and profile of released sugars from BMH after samples were suspended in deionized water with sodium azide at 25°C for 24 h in 2 independent runs. In experiment 4, the sequence of the BsEXLX1 purified protein was compared with 447 ruminal bacterial genomes to identify similar proteins from the rumen. In experiment 1, compared with EFE alone, EFE and BsEXLX1 synergistically increased sugar release from carboxymethylcellulose and Whatman #1 filter paper under all simulated conditions; however, hydrolysis of xylan was not improved. In experiment 2, compared with EFE alone, treatment with EFE and BsEXLX1 increased neutral detergent fiber and acid detergent fiber digestibility of bermudagrass haylage (by 5.5 and 15%, respectively) and total volatile fatty acid concentrations, and decreased acetate-propionate ratio. In experiment 3, compared with EFE alone. The EFE and BsEXLX1 synergistically reduced concentrations of neutral detergent fiber and acid detergent fiber and increased release of sugars by 9.3%, particularly cellobiose (72.5%). In experiment 4, a similar sequence to that of BsEXLX1 was identified in Bacillus licheniformis, and similar hypothetical protein sequences were identified in Ruminococcus flavefaciens strains along with different protein structures in E. xylanophilum and Lachnospiraceae. This study showed that an expansin-like protein synergistically increased the hydrolysis of pure cellulose substrates and the hydrolysis and digestibility in vitro of BMH.
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Affiliation(s)
| | - I Muhammad
- Department of Microbiology and Cell Science, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32603
| | - I M Ogunade
- Department of Animal Sciences, University of Florida, Gainesville 32611; Division of Food and Animal Science, Kentucky State University, Frankfort 40601
| | - Y Jiang
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - D H Kim
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - C F Gonzalez
- Department of Microbiology and Cell Science, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32603
| | - T J Hackmann
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A S Oliveira
- Institute of Agriculture and Environmental Sciences, Federal University of Mato Grosso, Campus Sinop, Sinop, MT, Brazil, 78890
| | - D Vyas
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A T Adesogan
- Department of Animal Sciences, University of Florida, Gainesville 32611.
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24
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Adesogan AT, Arriola KG, Jiang Y, Oyebade A, Paula EM, Pech-Cervantes AA, Romero JJ, Ferraretto LF, Vyas D. Symposium review: Technologies for improving fiber utilization. J Dairy Sci 2019; 102:5726-5755. [PMID: 30928262 DOI: 10.3168/jds.2018-15334] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 01/14/2019] [Indexed: 12/20/2022]
Abstract
The forage lignocellulosic complex is one of the greatest limitations to utilization of the nutrients and energy in fiber. Consequently, several technologies have been developed to increase forage fiber utilization by dairy cows. Physical or mechanical processing techniques reduce forage particle size and gut fill and thereby increase intake. Such techniques increase the surface area for microbial colonization and may increase fiber utilization. Genetic technologies such as brown midrib mutants (BMR) with less lignin have been among the most repeatable and practical strategies to increase fiber utilization. Newer BMR corn hybrids are better yielding than the early hybrids and recent brachytic dwarf BMR sorghum hybrids avoid lodging problems of early hybrids. Several alkalis have been effective at increasing fiber digestibility. Among these, ammoniation has the added benefit of increasing the nitrogen concentration of the forage. However, few of these have been widely adopted due to the cost and the caustic nature of the chemicals. Urea treatment is more benign but requires sufficient urease and moisture for efficacy. Ammonia-fiber expansion technology uses high temperature, moisture, and pressure to degrade lignocellulose to a greater extent than ammoniation alone, but it occurs in reactors and is therefore not currently usable on farms. Biological technologies for increasing fiber utilization such as application of exogenous fibrolytic enzymes, live yeasts, and yeast culture have had equivocal effects on forage fiber digestion in individual studies, but recent meta-analyses indicate that their overall effects are positive. Nonhydrolytic expansin-like proteins act in synergy with fibrolytic enzymes to increase fiber digestion beyond that achieved by the enzyme alone due to their ability to expand cellulose microfibrils allowing greater enzyme penetration of the cell wall matrix. White-rot fungi are perhaps the biological agents with the greatest potential for lignocellulose deconstruction, but they require aerobic conditions and several strains degrade easily digestible carbohydrates. Less ruminant nutrition research has been conducted on brown rot fungi that deconstruct lignocellulose by generating highly destructive hydroxyl radicals via the Fenton reaction. More research is needed to increase the repeatability, efficacy, cost effectiveness, and on-farm applicability of technologies for increasing fiber utilization.
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Affiliation(s)
- A T Adesogan
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32611.
| | - K G Arriola
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32611
| | - Y Jiang
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32611
| | - A Oyebade
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32611
| | - E M Paula
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32611
| | - A A Pech-Cervantes
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32611
| | - J J Romero
- Animal and Veterinary Sciences Program, School of Food and Agriculture, University of Maine, Orono 04469
| | - L F Ferraretto
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32611
| | - D Vyas
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32611
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Paulus Compart D, Anele U, Engel C, Vyas D, Kim D, Hoppe K. PSXIV-12 Impact of prebiotic and probiotic feed additive blends on bovine respiratory disease, E. coli O157:H7 shedding, and performance of receiving steers. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - U Anele
- North Carolina Agricultural and Technical State,Greensboro, NC, United States
| | - C Engel
- North Dakota State University, Carrington Research Extension Center,Carrington, ND, United States
| | - D Vyas
- University of Florida,Gainesville, FL, United States
| | - D Kim
- University of Florida,Gainesville, FL, United States
| | - K Hoppe
- North Dakota State University,Carrington, ND, United States
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Ogunade IM, Martinez-Tuppia C, Queiroz OCM, Jiang Y, Drouin P, Wu F, Vyas D, Adesogan AT. Silage review: Mycotoxins in silage: Occurrence, effects, prevention, and mitigation. J Dairy Sci 2018; 101:4034-4059. [PMID: 29685276 DOI: 10.3168/jds.2017-13788] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 10/28/2017] [Indexed: 01/03/2023]
Abstract
Ensiled forage, particularly corn silage, is an important component of dairy cow diets worldwide. Forages can be contaminated with several mycotoxins in the field pre-harvest, during storage, or after ensiling during feed-out. Exposure to dietary mycotoxins adversely affects the performance and health of livestock and can compromise human health. Several studies and surveys indicate that ruminants are often exposed to mycotoxins such as aflatoxins, trichothecenes, ochratoxin A, fumonisins, zearalenone, and many other fungal secondary metabolites, via the silage they ingest. Problems associated with mycotoxins in silage can be minimized by preventing fungal growth before and after ensiling. Proper silage management is essential to reduce mycotoxin contamination of dairy cow feeds, and certain mold-inhibiting chemical additives or microbial inoculants can also reduce the contamination levels. Several sequestering agents also can be added to diets to reduce mycotoxin levels, but their efficacy varies with the type and level of mycotoxin contamination. This article gives an overview of the types, prevalence, and levels of mycotoxin contamination in ensiled forages in different countries, and describes their adverse effects on health of ruminants, and effective prevention and mitigation strategies for dairy cow diets. Future research priorities discussed include research efforts to develop silage additives or rumen microbial innocula that degrade mycotoxins.
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Affiliation(s)
- I M Ogunade
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32608
| | - C Martinez-Tuppia
- Lallemand Animal Nutrition, Lallemand SAS, 19 rue des Briquetiers, B.P. 59, F-31702 Blagnac, France
| | - O C M Queiroz
- Chr Hansen, Animal Health and Nutrition, Chr. Hansen, Buenos Aires 1107, Argentina
| | - Y Jiang
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32608
| | - P Drouin
- Lallemand Animal Nutrition, Lallemand SAS, 19 rue des Briquetiers, B.P. 59, F-31702 Blagnac, France
| | - F Wu
- Department of Food Science and Human Nutrition, Department of Agricultural, Food, and Resource Economics, Michigan State University, East Lansing 48824
| | - D Vyas
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32608
| | - A T Adesogan
- Department of Animal Sciences, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32608.
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Borrero CG, Bertolet M, Costello J, Vyas D. Value of anterosuperior rotator cuff and labral tears at MRI for predicting long head of biceps tearing at arthroscopy. Clin Radiol 2018; 73:1058.e1-1058.e9. [PMID: 30224185 DOI: 10.1016/j.crad.2018.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/10/2018] [Indexed: 11/29/2022]
Abstract
AIM To determine whether magnetic resonance imaging (MRI) signs of subscapularis (SBT), supraspinatus (SST), or superior labral tearing predict long head of biceps (LHB) tendon tearing at arthroscopy. MATERIALS AND METHODS Subjects with MRI studies followed by arthroscopy were collected. Radiologists graded rotator cuff (RC) tendons and the superior labrum using three grade classifications and blinded to arthroscopy. Correlation between imaging variables and surgical outcome was expressed in terms of odds ratios and determined using a stepwise logistic regression model. RESULTS Selection criteria identified 89 participants. Statistically significant increase in odds of finding a partial LHB tendon tear at arthroscopy were noted for both MRI readers with any SBT tear (OR=4.1-5.6, p<0.0001 to 0.002), full-thickness SST (OR=8-20.4, p=0.002 to 0.006), and combined SST-SBT tears (OR=5.1-7.6, p<0.0001 to 0.002) and relative to grade 0 MRI scores for those categories. Statistically significant increase in the odds of finding any LHB tendon tear at arthroscopy were noted for both MRI readers with any SBT tear (OR=9.6 to 14.6, p<0.0001), full-thickness SST (OR=9.0 to 52.0, p<0.0001 to 0.0004) and combined SST-SBT tears (OR=8.2 to 15.1, p<0.0001) at MRI and relative to grade 0 MRI scores for these categories. No significant predictive effect was found for the labral categories. CONCLUSION LHB tendons should be closely scrutinised if anterosuperior rotator cuff tears, and SBT tears in particular, are found on MRI.
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Affiliation(s)
- C G Borrero
- University of Pittsburgh School of Medicine, USA.
| | - M Bertolet
- University of Pittsburgh School of Public Health, USA
| | - J Costello
- University of Pittsburgh School of Medicine, USA
| | - D Vyas
- University of Pittsburgh School of Medicine, USA
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Ogunade I, Jiang Y, Pech Cervantes A, Kim D, Oliveira A, Vyas D, Weinberg Z, Jeong K, Adesogan A. Bacterial diversity and composition of alfalfa silage as analyzed by Illumina MiSeq sequencing: Effects of Escherichia coli O157:H7 and silage additives. J Dairy Sci 2018; 101:2048-2059. [DOI: 10.3168/jds.2017-12876] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 10/20/2017] [Indexed: 12/20/2022]
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29
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Jiang Y, Ogunade IM, Kim DH, Li X, Pech-Cervantes AA, Arriola KG, Oliveira AS, Driver JP, Ferraretto LF, Staples CR, Vyas D, Adesogan AT. Effect of adding clay with or without a Saccharomyces cerevisiae fermentation product on the health and performance of lactating dairy cows challenged with dietary aflatoxin B 1. J Dairy Sci 2018; 101:3008-3020. [PMID: 29428756 DOI: 10.3168/jds.2017-13678] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 11/21/2017] [Indexed: 11/19/2022]
Abstract
The study was conducted to examine the effect of supplementing bentonite clay with or without a Saccharomyces cerevisiae fermentation product (SCFP; 19 g of NutriTek + 16 g of MetaShield, both from Diamond V, Cedar Rapids, IA) on the performance and health of dairy cows challenged with aflatoxin B1 (AFB1). Twenty-four lactating Holstein cows (64 ± 11 d in milk) were stratified by parity and milk production and randomly assigned to 1 of 4 treatment sequences. The experiment had a balanced 4 × 4 Latin square design with 6 replicate squares, four 33-d periods, and a 5-d washout interval between periods. Cows were fed a total mixed ration containing 36.1% corn silage, 8.3% alfalfa hay, and 55.6% concentrate (dry matter basis). Treatments were (1) control (no additives), (2) toxin (T; 1,725 µg of AFB1/head per day), (3) T + clay (CL; 200 g/head per day; top-dressed), and (4) CL+SCFP (CL+SCFP; 35 g/head per day; top-dressed). Cows were adapted to diets from d 1 to 25 (predosing period) and then orally dosed with AFB1 from d 26 to 30 (dosing period), and AFB1 was withdrawn from d 31 to 33 (withdrawal period). Milk samples were collected twice daily from d 21 to 33, and plasma was sampled on d 25 and 30 before the morning feeding. Transfer of ingested AFB1 into milk aflatoxin M1 (AFM1) was greater in T than in CL or CL+SCFP (1.65 vs. 1.01 and 0.94%, respectively) from d 26 to 30. The CL and CL+SCFP treatments reduced milk AFM1 concentration compared with T (0.45 and 0.40 vs. 0.75 µg/kg, respectively), and, unlike T, both CL and CL+SCFP lowered AFM1 concentrations below the US Food and Drug Administration action level (0.5 µg/kg). Milk yield tended to be greater during the dosing period in cows fed CL+SCFP compared with T (39.7 vs. 37.7 kg/d). Compared with that for T, plasma glutamic oxaloacetic transaminase concentration, indicative of aflatoxicosis and liver damage, was reduced by CL (85.9 vs. 95.2 U/L) and numerically reduced by CL+SCFP (87.9 vs. 95.2 U/L). Dietary CL and CL+SCFP reduced transfer of dietary AFB1 to milk and milk AFM1 concentration. Only CL prevented the increase in glutamic oxaloacetic transaminase concentration, and only CL+SCFP prevented the decrease in milk yield caused by AFB1 ingestion.
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Affiliation(s)
- Y Jiang
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - I M Ogunade
- Department of Animal Sciences, University of Florida, Gainesville 32611; Division of Food and Animal Science, Kentucky State University, Frankfort 40601
| | - D H Kim
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - X Li
- Department of Animal Sciences, China Agricultural University, Beijing, China, 100193
| | | | - K G Arriola
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A S Oliveira
- Institute of Agriculture and Environmental Sciences, Federal University of Mato Grosso, Sinop, MT, Brazil, 78557-267
| | - J P Driver
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - L F Ferraretto
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - C R Staples
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - D Vyas
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A T Adesogan
- Department of Animal Sciences, University of Florida, Gainesville 32611.
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30
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Alemu AW, Vyas D, Manafiazar G, Basarab JA, Beauchemin KA. Enteric methane emissions from low- and high-residual feed intake beef heifers measured using GreenFeed and respiration chamber techniques. J Anim Sci 2018; 95:3727-3737. [PMID: 28805902 DOI: 10.2527/jas.2017.1501] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The objectives of this study were to evaluate the relationship between residual feed intake (RFI; g/d) and enteric methane (CH) production (g/kg DM) and to compare CH and carbon dioxide (CO) emissions measured using respiration chambers (RC) and the GreenFeed emission monitoring (GEM) system (C-Lock Inc., Rapid City, SD). A total of 98 crossbred replacement heifers were group housed in 2 pens and fed barley silage ad libitum and their individual feed intakes were recorded by 16 automated feeding bunks (GrowSafe, Airdrie, AB, Canada) for a period of 72 d to determine their phenotypic RFI. Heifers were ranked on the basis of phenotypic RFI, and 16 heifers (8 with low RFI and 8 with high RFI) were randomly selected for enteric CH and CO emissions measurement. Enteric CH and CO emissions of individual animals were measured over two 25-d periods using RC (2 d/period) and GEM systems (all days when not in chambers). During gas measurements metabolic BW tended to be greater ( ≤ 0.09) for high-RFI heifers but ADG tended ( = 0.09) to be greater for low-RFI heifers. As expected, high-RFI heifers consumed 6.9% more feed ( = 0.03) compared to their more efficient counterparts (7.1 vs. 6.6 kg DM/d). Average CH emissions were 202 and 222 g/d ( = 0.02) with the GEM system and 156 and 164 g/d ( = 0.40) with RC for the low- and high-RFI heifers, respectively. When adjusted for feed intake, CH yield (g/kg DMI) was similar for high- and low-RFI heifers (GEM: 27.7 and 28.5, = 0.25; RC: 26.5 and 26.5, = 0.99). However, CH yield differed between the 2 measurement techniques only for the high-RFI group ( = 0.01). Estimates of CO yield (g/kg DMI) also differed between the 2 techniques ( ≤ 0.03). Our study found that high- and low-efficiency cattle produce similar CH yield but different daily CH emissions. The 2 measurement techniques differ in estimating CH and CO emissions, partially because of differences in conditions (lower feed intakes of cattle while in chambers, fewer days measured in chambers) during measurement. We conclude that when intake of animals is known, the GEM system offers a robust and accurate means of estimating CH emissions from animals under field conditions.
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Vyas D, McGinn SM, Duval SM, Kindermann MK, Beauchemin KA. Optimal dose of 3-nitrooxypropanol for decreasing enteric methane emissions from beef cattle fed high-forage and high-grain diets. Anim Prod Sci 2018. [DOI: 10.1071/an15705] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The objective of the present study was to determine the dose response of the methane (CH4) inhibitor 3-nitrooxypropanol (NOP) on enteric CH4 production and dry matter intake (DMI) for beef cattle fed a high-forage or high-grain diet. Fifteen crossbred yearling steers were used in two consecutive studies (high-forage backgrounding, high-grain finishing), each designed as an incomplete block with two 28-day periods with a 7-day washout in between and treatments corresponding to six doses of NOP (0 (Control), 50, 75, 100, 150, 200 mg/kg DM). The NOP was provided in the ration daily with the dose increased gradually over the first 10 days of each period. No treatment effects were observed on overall DMI or DMI of cattle when they were in the chambers either for the high-forage (P ≥ 0.54) or high-grain (P ≥ 0.26) diet. With the high-forage diet, NOP supplementation lowered total CH4 emissions (g/day) (P = 0.05), with the response at 200 mg NOP/kg DM different from Control (P < 0.05). Similarly, CH4 emissions corrected for DMI (g/kg DMI) and as a percentage of gross energy intake were linearly reduced in the high-forage diet with supplemental NOP (P < 0.01) and responses observed at 100, 150 and 200 mg NOP/kg DM differed from Control (P < 0.05). For the high-grain diet, total CH4 emissions decreased with incremental increases in the concentration of NOP supplemented (P = 0.04) and responses observed at 150 and 200 mg/kg DM differed from Control. Similarly, linear responses were observed with CH4 emissions corrected for DMI (P = 0.04) and gross energy intake (P = 0.02), with 100–200 mg NOP/kg DM differing from Control. Overall, results from the present study demonstrated that for beef cattle fed high-forage and high-grain diets, supplementation of 100–200 mg NOP/kg DM lowered enteric CH4 emissions without inducing any negative effects on DMI.
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Jiang Y, Ogunade I, Arriola K, Qi M, Vyas D, Staples C, Adesogan A. Effects of the dose and viability of Saccharomyces cerevisiae. 2. Ruminal fermentation, performance of lactating dairy cows, and correlations between ruminal bacteria abundance and performance measures. J Dairy Sci 2017; 100:8102-8118. [DOI: 10.3168/jds.2016-12371] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 06/07/2017] [Indexed: 02/02/2023]
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Alemu AW, Vyas D, Manafiazar G, Basarab JA, Beauchemin KA. 490 Estimating enteric methane emission from beef heifers with different residual feed intake using greenfeed and respiration chambers. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Mohammed R, Vyas D, Yang W, Beauchemin K. Changes in the relative population size of selected ruminal bacteria following an induced episode of acidosis in beef heifers receiving viable and non-viable active dried yeast. J Appl Microbiol 2017; 122:1483-1496. [DOI: 10.1111/jam.13451] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 02/06/2017] [Accepted: 03/15/2017] [Indexed: 10/19/2022]
Affiliation(s)
- R. Mohammed
- Lethbridge Research and Development Center; Agriculture and Agri-Food Canada; Lethbridge AB Canada
| | - D. Vyas
- Lethbridge Research and Development Center; Agriculture and Agri-Food Canada; Lethbridge AB Canada
| | - W.Z. Yang
- Lethbridge Research and Development Center; Agriculture and Agri-Food Canada; Lethbridge AB Canada
| | - K.A. Beauchemin
- Lethbridge Research and Development Center; Agriculture and Agri-Food Canada; Lethbridge AB Canada
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Ogunade I, Jiang Y, Kim D, Cervantes AP, Arriola K, Vyas D, Weinberg Z, Jeong K, Adesogan A. Fate of Escherichia coli O157:H7 and bacterial diversity in corn silage contaminated with the pathogen and treated with chemical or microbial additives. J Dairy Sci 2017; 100:1780-1794. [DOI: 10.3168/jds.2016-11745] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 11/01/2016] [Indexed: 01/15/2023]
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Alemu AW, Vyas D, Manafiazar G, Basarab JA, Beauchemin KA. Enteric methane emissions from low– and high–residual feed intake beef heifers measured using GreenFeed and respiration chamber techniques. J Anim Sci 2017. [DOI: 10.2527/jas2017.1501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Cervantes AAP, Muhammad I, Gonzalez CF, Vyas D, Adesogan AT. 1625 Expression and purification of a novel bacterial expansin from Bacillus subtilis that synergistically degrades cellulose with fibrolytic enzymes. J Anim Sci 2016. [DOI: 10.2527/jam2016-1625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Oliveira AS, Weinberg ZG, Cervantes AAP, Arriola KG, Ogunade IM, Jiang Y, Kim D, Gonçalves MCM, Vyas D, Adesogan AT. 0635 Meta-analysis of the effect of homolactic and facultative heterolactic bacteria inoculation on silage quality II: Aerobic stability and yeast, mold and clostridia counts. J Anim Sci 2016. [DOI: 10.2527/jam2016-0635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Oliveira AS, Weinberg ZG, Cervantes AAP, Arriola KG, Ogunade IM, Jiang Y, Kim D, Gonçalves MCM, Vyas D, Adesogan AT. 0650 Meta-analysis of the effect of homolactic and facultative heterolactic bacteria inoculation on silage quality: III Dry matter recovery, chemical composition and in vitro digestibility. J Anim Sci 2016. [DOI: 10.2527/jam2016-0650] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Li X, Zhu Y, Vyas D, Adesogan AT. 1419 Effect of lactic acid bacterial inoculants on the fermentation parameters and aerobic stability of sorghum-sudangrass silage. J Anim Sci 2016. [DOI: 10.2527/jam2016-1419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Oliveira AS, Weinberg ZG, Cervantes AAP, Arriola KG, Ogunade IM, Jiang Y, Kim D, Gonçalves MCM, Vyas D, Adesogan AT. 0636 Meta-analysis of the effect silage inoculation with homolactic or facultative heterolactic bacteria on the performance of dairy cows. J Anim Sci 2016. [DOI: 10.2527/jam2016-0636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Oliveira AS, Weinberg ZG, Cervantes AAP, Arriola KG, Ogunade IM, Jiang Y, Kim D, Gonçalves MCM, Vyas D, Adesogan AT. 0683 Meta-analysis of the effect of homolactic and facultative heterolactic bacteria inoculation on silage quality: I – Fermentation profile. J Anim Sci 2016. [DOI: 10.2527/jam2016-0683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ogunade IM, Kim D, Jiang Y, Cervantes AAP, Arriola KG, Vyas D, Adesogan AT. 1387 Microbial and chemical additives inhibit the growth of Escherichia coli O157:H7 in corn silage. J Anim Sci 2016. [DOI: 10.2527/jam2016-1387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kim D, Ogunade IM, Arriola KG, Vyas D, Adesogan AT. 1456 Essential oils from three tropical Citrus species can reduce in vitro enteric methane production. J Anim Sci 2016. [DOI: 10.2527/jam2016-1456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ogunade IM, Kim D, Jiang Y, Arriola KG, Cervantes AAP, Vyas D, Weinberg ZG, Adesogan AT. 1525 Inhibiting the growth of Escherichia coli O157:H7 in alfalfa silage with silage additives. J Anim Sci 2016. [DOI: 10.2527/jam2016-1525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Jiang Y, Martins RM, Ogunade IM, Bamikole MA, Amaro F, Rutherford W, Qi S, Owens F, Smiley B, Arriola KG, Oliveria A, Vyas D, Staples CR, Adesogan AT. 1524 Correlations between the abundance of specific ruminal bacteria with milk production and total tract digestibility of dairy cows fed live or killed yeast. J Anim Sci 2016. [DOI: 10.2527/jam2016-1524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Badhwar VR, Ganapathy S, Prabhudesai PP, Tulara NK, Varaiya AY, Vyas D. A Relook of Cefuroxime in Community Infections: An Option Still Beneficial. J Assoc Physicians India 2016; 64:95-101. [PMID: 27759360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In community and family practice, infections are a common OPD presentation. In the management of common bacterial infections seen in community especially RTI, UTI, SSTI; cefuroxime a second generation cephalosporin with a broad spectrum of activity can be used for empirical treatment. To know current place of cefuroxime in the management of infections, physicians, surgeons, microbiologist, chest physician, gynecologist and pediatrician came together to discuss and debate their experience with cefuroxime and its place in today's world. Cefuroxime is a drug which balances efficacy with safety. Several international bodies and guidelines including the US FDA and The British Thoracic Society, the World Society of Emergency Surgery (WSES) have recommended cefuroxime for the management of community acquired pneumonia and skin and soft tissue infection respectively. Cefuroxime has been recommended in the 2015 list of the US FDA list of drugs which can be used safely during pregnancy. Cefuroxime can become a useful empiric choice antibiotic for the Indian physicians treating urinary tract infections, respiratory tract infections and skin and soft tissue infections in their outpatient departments.
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Affiliation(s)
- V R Badhwar
- Professor and Head, Obstetrics and Gynecology, DY Patil Medical College and Hospital, Navi Mumbai, Maharashtra
| | - S Ganapathy
- Visiting Pediatrician, Gurunanak Hospital, Mumbai, Maharashtra
| | - P P Prabhudesai
- Consulting Chest Physician, Lilavati Hospital and Research Center, Mumbai, Maharashtra
| | - N K Tulara
- Senior Consultant (Infectious Disease) and Critical Care Specialist, Dr. LH Hiranandani Hospital, Mumbai, Maharashtra
| | - A Y Varaiya
- Head, Microbiology Department, Nanavati Hospital, Mumbai, Maharashtra
| | - D Vyas
- Head, Surgery Department, Nanavati Hospital, Mumbai, Maharashtra
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Vyas D, McGinn SM, Duval SM, Kindermann M, Beauchemin KA. Effects of sustained reduction of enteric methane emissions with dietary supplementation of 3-nitrooxypropanol on growth performance of growing and finishing beef cattle1. J Anim Sci 2016; 94:2024-34. [DOI: 10.2527/jas.2015-0268] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Vyas D, Alazzeh A, McGinn SM, McAllister TA, Harstad OM, Holo H, Beauchemin KA. Enteric methane emissions in response to ruminal inoculation of Propionibacterium strains in beef cattle fed a mixed diet. Anim Prod Sci 2016. [DOI: 10.1071/an14801] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The objective of this study was to test the efficacy of Propionibacterium strains to mitigate enteric methane (CH4) emissions in beef heifers fed a mixed diet. An experiment was conducted with 16 ruminally cannulated beef heifers fed a basal diet consisting of 60 : 40 barley silage : barley grain (DM basis). Treatments included: (1) Control, (2) Propionibacterium freudenreichii T114, (3) P. thoenii T159, and (4) P. freudenreichii T54. Strains (1 × 1011 colony forming units) were administered daily directly into the rumen before feeding. No treatment effects were observed for DM intake (P = 0.90), mean ruminal pH (P = 0.50) and total volatile fatty acids (P = 0.44). However, compared with the Control, proportions of individual volatile fatty acids changed with acetate being less with Propionibacterium T159 (P = 0.02), whereas ruminal isobutyrate (P < 0.01) and acetate : propionate ratio (P = 0.04) were greater with Propionibacterium T114. Total daily enteric CH4 production averaged 188 g/day and was not affected by Propionbacterium strains (P = 0.51). Methane yield averaged 22 g/kg of DMI intake and tended to be greater with Propionibacterium strains (P = 0.08). The relative abundance of total Propionibacteria was greater with the inoculation of Propionibacterium T159 relative to the Control heifers (P = 0.04). In conclusion, inoculation of Propionibacterium T159 decreased ruminal acetate proportion and Propionibacterium T114 increased acetate : propionate ratio. However, inoculated strains failed to lower total CH4 emissions possibly due to the inability of Propionibacterium strains to elevate ruminal propionate concentrations.
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Vyas D, Beauchemin KA, Koenig KM. Using organic acids to control subacute ruminal acidosis and fermentation in feedlot cattle fed a high-grain diet1,2. J Anim Sci 2015; 93:3950-8. [DOI: 10.2527/jas.2015-9009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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