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Wei Y, Li W, Han Y, Xiong Y, Kuang Y, Zhang J. CdTe based water-soluble fluorescent probe for rapid detection of zilpaterol in swine urine and pork. Food Chem 2024; 445:138668. [PMID: 38367555 DOI: 10.1016/j.foodchem.2024.138668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 01/31/2024] [Accepted: 02/02/2024] [Indexed: 02/19/2024]
Abstract
Zilpaterol hydrochloride (zilpaterol) is used in animal feed as it can increase the lean meat mass. However, consuming zilpaterol-containing animal products may damage human health. Therefore, rapid detection of zilpaterol is attracting increasing research attention. This study aimed to developed a fast, accurate, and ultrasensitive fluorescence immunoassay based on CdTe quantum dots (QDs). A CdTe QD fluorescence sensor was synthesized from thioglycolic acid using a simple hydrothermal method. The morphology and structure of the CdTe QDs were characterized using transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Fourier-transform infrared spectroscopy. The detection limits of our method in swine urine and pork samples were 0.5 μg/L and 1.2 μg/kg, respectively. A wide linear range of 0.1-10000 μg/L (R2 = 0.996) was achieved. Both within-run precision (CVw) and between-run precision (CVb) were ≤ 10 %. The method was then successfully applied for the analysis of zilpaterol contents in swine urine and pork samples.
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Affiliation(s)
- Yihua Wei
- Institute for Quality & Safety and standards of Agricultural products rearch, Jiangxi Academy of Agricultural Sciences, Nanlian Road 602, Nanchang 330200, China
| | - Weihong Li
- Institute for Quality & Safety and standards of Agricultural products rearch, Jiangxi Academy of Agricultural Sciences, Nanlian Road 602, Nanchang 330200, China
| | - Yan Han
- Institute for Quality & Safety and standards of Agricultural products rearch, Jiangxi Academy of Agricultural Sciences, Nanlian Road 602, Nanchang 330200, China
| | - Yan Xiong
- Institute for Quality & Safety and standards of Agricultural products rearch, Jiangxi Academy of Agricultural Sciences, Nanlian Road 602, Nanchang 330200, China
| | - Yuanying Kuang
- Institute for Quality & Safety and standards of Agricultural products rearch, Jiangxi Academy of Agricultural Sciences, Nanlian Road 602, Nanchang 330200, China
| | - Jinyan Zhang
- Institute for Quality & Safety and standards of Agricultural products rearch, Jiangxi Academy of Agricultural Sciences, Nanlian Road 602, Nanchang 330200, China.
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2
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Estrada-Angulo A, Verdugo-Insúa M, Escobedo-Gallegos LDG, Castro-Pérez BI, Urías-Estrada JD, Ponce-Barraza E, Mendoza-Cortez D, Ríos-Rincón FG, Monge-Navarro F, Barreras A, Zinn RA, Corona-Gochi L, Plascencia A. Influences of a Supplemental Blend of Essential Oils Plus 25-Hydroxy-Vit-D3 and Zilpaterol Hydrochloride (β2 Agonist) on Growth Performance and Carcass Measures of Feedlot Lambs Finished under Conditions of High Ambient Temperature. Animals (Basel) 2024; 14:1391. [PMID: 38731393 PMCID: PMC11083129 DOI: 10.3390/ani14091391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 05/13/2024] Open
Abstract
Forty-eight Pelibuey × Katahdin male intact lambs (25.12 ± 3.79 kg LW) were used in a 70-d growing-finishing trial. Dietary treatments consisted of total mixed corn-based diet supplemented with: (1) no feed additives (Control); (2) 150 mg of essential oils blend plus 0.10 mg of 25-hydroxy-Vit-D3/kg diet offered throughout the 70-d experimental period (EOD3); (3) Control diet fed during the first 35 days and zilpaterol hydrochloride (ZH) supplementation at 6 mg/kg diet offered during the final 35 days of the experiment (32 days with ZH with a withdrawal 3-d before harvest), and (4) basal diet supplemented with EOD3 during first 35 days finishing, and EOD3 in combination with ZH (EOD3 + ZH) during the subsequent 32-days with ZH withdrawal 3 days before harvest. The temperature-humidity index during the experiment averaged 80.4 ± 3.2. There were no treatment interactions (p > 0.20) on growth performance and carcass measures. Supplemental EOD3 did not affect (p = 0.43) dry matter intake (DMI), but increased (p < 0.01) carcass adjusted average daily gain (ADG, 9.2%), gain efficiency (GF, 6.7%), and observed vs. expected dietary net energy for maintenance (NEm, 4.8%) and for gain (NEg, 6.4%). Supplemental ZH did not affect dry matter intake (DMI, p = 0.50) but increased (p < 0.01) carcass adjusted ADG (14.5%), GF (13%) and observed vs. expected dietary NEm (9%) and NEg (11.7%). Compared to control lambs, the combination of both additives increased ADG (24.9%), GF (21.2%), and observed vs. expected dietary NEm and NEg (14.2% and 18.9%, respectively). There were no treatment interactions on carcass characteristics, visceral organ mass, or on gene expression of IGF1, IGF2 and mTOR in longissimus muscle (LM). Supplemental EOD3 increased hot carcass weight (HCW; 4.0%, p < 0.01) but did not affect other carcass measures. Supplemental EOD3 decreased (3%, p = 0.03) intestine mass weight (g intestine/kg empty body weight). Supplemental ZH increased HCW (6%, p < 0.01), dressing percentage (1.7%, p = 0.04), and LM area (9.7%, p < 0.01), and decreased kidney-pelvic-fat percentage (16.2%, p < 0.01), fat thickness (14.7%, p = 0.03), and visceral fat. Compared to controls, the combination of EOD3 with ZH increased HCW (10.2%). It is concluded that growth performance responses to supplemental EOD3 and ZH are additive. Both supplements can be fed in combination without detrimental effects on expected benefits when fed separately. In addition, ZH supplementation improves carcass traits.
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Affiliation(s)
- Alfredo Estrada-Angulo
- Faculty of Veterinary Medicine and Zootechnics, Autonomous University of Sinaloa, Culiacan 80260, Sinaloa, Mexico; (A.E.-A.); (M.V.-I.); (L.d.G.E.-G.); (B.I.C.-P.); (J.D.U.-E.); (E.P.-B.); (D.M.-C.); (F.G.R.-R.)
| | - Moisés Verdugo-Insúa
- Faculty of Veterinary Medicine and Zootechnics, Autonomous University of Sinaloa, Culiacan 80260, Sinaloa, Mexico; (A.E.-A.); (M.V.-I.); (L.d.G.E.-G.); (B.I.C.-P.); (J.D.U.-E.); (E.P.-B.); (D.M.-C.); (F.G.R.-R.)
| | - Lucía de G. Escobedo-Gallegos
- Faculty of Veterinary Medicine and Zootechnics, Autonomous University of Sinaloa, Culiacan 80260, Sinaloa, Mexico; (A.E.-A.); (M.V.-I.); (L.d.G.E.-G.); (B.I.C.-P.); (J.D.U.-E.); (E.P.-B.); (D.M.-C.); (F.G.R.-R.)
| | - Beatriz I. Castro-Pérez
- Faculty of Veterinary Medicine and Zootechnics, Autonomous University of Sinaloa, Culiacan 80260, Sinaloa, Mexico; (A.E.-A.); (M.V.-I.); (L.d.G.E.-G.); (B.I.C.-P.); (J.D.U.-E.); (E.P.-B.); (D.M.-C.); (F.G.R.-R.)
| | - Jesús D. Urías-Estrada
- Faculty of Veterinary Medicine and Zootechnics, Autonomous University of Sinaloa, Culiacan 80260, Sinaloa, Mexico; (A.E.-A.); (M.V.-I.); (L.d.G.E.-G.); (B.I.C.-P.); (J.D.U.-E.); (E.P.-B.); (D.M.-C.); (F.G.R.-R.)
| | - Elizama Ponce-Barraza
- Faculty of Veterinary Medicine and Zootechnics, Autonomous University of Sinaloa, Culiacan 80260, Sinaloa, Mexico; (A.E.-A.); (M.V.-I.); (L.d.G.E.-G.); (B.I.C.-P.); (J.D.U.-E.); (E.P.-B.); (D.M.-C.); (F.G.R.-R.)
| | - Daniel Mendoza-Cortez
- Faculty of Veterinary Medicine and Zootechnics, Autonomous University of Sinaloa, Culiacan 80260, Sinaloa, Mexico; (A.E.-A.); (M.V.-I.); (L.d.G.E.-G.); (B.I.C.-P.); (J.D.U.-E.); (E.P.-B.); (D.M.-C.); (F.G.R.-R.)
| | - Francisco G. Ríos-Rincón
- Faculty of Veterinary Medicine and Zootechnics, Autonomous University of Sinaloa, Culiacan 80260, Sinaloa, Mexico; (A.E.-A.); (M.V.-I.); (L.d.G.E.-G.); (B.I.C.-P.); (J.D.U.-E.); (E.P.-B.); (D.M.-C.); (F.G.R.-R.)
| | - Francisco Monge-Navarro
- Veterinary Science Research Institute, Autonomous University of Baja California, Mexicali 21100, Baja California, Mexico; (F.M.-N.); (A.B.)
| | - Alberto Barreras
- Veterinary Science Research Institute, Autonomous University of Baja California, Mexicali 21100, Baja California, Mexico; (F.M.-N.); (A.B.)
| | - Richard A. Zinn
- Animal Science Department, University of California, Davis, CA 95616, USA;
| | - Luis Corona-Gochi
- Faculty of Veterinary Medicine and Zootechnics, National Autonomous University of Mexico, Mexico City 04510, Mexico;
| | - Alejandro Plascencia
- Faculty of Veterinary Medicine and Zootechnics, Autonomous University of Sinaloa, Culiacan 80260, Sinaloa, Mexico; (A.E.-A.); (M.V.-I.); (L.d.G.E.-G.); (B.I.C.-P.); (J.D.U.-E.); (E.P.-B.); (D.M.-C.); (F.G.R.-R.)
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3
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Chen B, Yuan C, Guo T, Liu J, Yang B, Lu Z. Molecular Mechanism of m6A Methylation Modification Genes METTL3 and FTO in Regulating Heat Stress in Sheep. Int J Mol Sci 2023; 24:11926. [PMID: 37569302 PMCID: PMC10419070 DOI: 10.3390/ijms241511926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/22/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
Heat stress is an important environmental factor affecting livestock production worldwide. Primary hepatocytes and preadipocytes derived from Hu sheep were used to establish a heat stress model. Quantitative reverse transcriptase-PCR (qRT-PCR) analysis showed that heat induction significantly increased the expression levels of heat stress protein (HSP) genes and the N6-methyladenosine (m6A) methylation modification genes: methyltransferase-like protein 3 (METTL3), methyltransferase-like protein 14 (METTL14), and fat mass and obesity associated protein (FTO). Heat stress simultaneously promoted cell apoptosis. Transcriptome sequencing identified 3980 upregulated genes and 2420 downregulated genes related to heat stress. A pathway enrichment analysis of these genes revealed significant enrichment in fatty acid biosynthesis, degradation, and the PI3K-Akt and peroxisome proliferator-activated receptor (PPAR) signaling pathways. Overexpression of METTL3 in primary hepatocytes led to significant downregulation of HSP60, HSP70, and HSP110, and significantly increased mRNA m6A methylation; FTO interference generated the opposite results. Primary adipocytes showed similar results. Transcriptome analysis of cells under METTL3 (or FTO) inference and overexpression revealed differentially expressed genes enriched in the mitogen-activated protein kinase (MAPK) signaling pathways, as well as the PI3K-Akt and Ras signaling pathways. We speculate that METTL3 may increase the level of m6A methylation to inhibit fat deposition and/or inhibit the expression of HSP genes to enhance the body's resistance to heat stress, while the FTO gene generated the opposite molecular mechanism. This study provides a scientific basis and theoretical support for sheep feeding and management practices during heat stress.
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Affiliation(s)
- Bowen Chen
- Key Laboratory of Animal Genetics and Breeding on the Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (B.C.); (C.Y.); (T.G.); (J.L.)
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Chao Yuan
- Key Laboratory of Animal Genetics and Breeding on the Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (B.C.); (C.Y.); (T.G.); (J.L.)
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Tingting Guo
- Key Laboratory of Animal Genetics and Breeding on the Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (B.C.); (C.Y.); (T.G.); (J.L.)
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Jianbin Liu
- Key Laboratory of Animal Genetics and Breeding on the Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (B.C.); (C.Y.); (T.G.); (J.L.)
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Bohui Yang
- Key Laboratory of Animal Genetics and Breeding on the Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (B.C.); (C.Y.); (T.G.); (J.L.)
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Zengkui Lu
- Key Laboratory of Animal Genetics and Breeding on the Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (B.C.); (C.Y.); (T.G.); (J.L.)
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
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Bejaoui B, Sdiri C, Ben Souf I, Belhadj Slimen I, Ben Larbi M, Koumba S, Martin P, M'Hamdi N. Physicochemical Properties, Antioxidant Markers, and Meat Quality as Affected by Heat Stress: A Review. Molecules 2023; 28:molecules28083332. [PMID: 37110566 PMCID: PMC10147039 DOI: 10.3390/molecules28083332] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/14/2023] [Accepted: 03/24/2023] [Indexed: 04/29/2023] Open
Abstract
Heat stress is one of the most stressful events in livestock life, negatively impacting animal health, productivity, and product quality. Moreover, the negative impact of heat stress on animal product quality has recently attracted increasing public awareness and concern. The purpose of this review is to discuss the effects of heat stress on the quality and the physicochemical component of meat in ruminants, pigs, rabbits, and poultry. Based on PRISMA guidelines, research articles were identified, screened, and summarized based on inclusion criteria for heat stress on meat safety and quality. Data were obtained from the Web of Science. Many studies reported the increased incidences of heat stress on animal welfare and meat quality. Although heat stress impacts can be variable depending on the severity and duration, the exposure of animals to heat stress (HS) can affect meat quality. Recent studies have shown that HS not only causes physiological and metabolic disturbances in living animals but also alters the rate and extent of glycolysis in postmortem muscles, resulting in changes in pH values that affect carcasses and meat. It has been shown to have a plausible effect on quality and antioxidant activity. Acute heat stress just before slaughter stimulates muscle glycogenolysis and can result in pale, tender, and exudative (PSE) meat characterized by low water-holding capacity (WHC). The enzymatic antioxidants such as superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) act by scavenging both intracellular and extracellular superoxide radicals and preventing the lipid peroxidation of the plasma membrane. Therefore, understanding and controlling environmental conditions is crucial to successful animal production and product safety. The objective of this review was to investigate the effects of HS on meat quality and antioxidant status.
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Affiliation(s)
- Bochra Bejaoui
- Laboratory of Useful Materials, National Institute of Research and Pysico-Chemical Analysis (INRAP), Technopark of Sidi Thabet, Ariana 2020, Tunisia
- Department of Chemistry, Faculty of Sciences of Bizerte, University of Carthage, Zarzouna, Bizerte 7021, Tunisia
| | - Chaima Sdiri
- Research Laboratory of Ecosystems & Aquatic Resources, National Agronomic Institute of Tunisia, Carthage University, 43 Avenue Charles Nicolle, Tunis 1082, Tunisia
| | - Ikram Ben Souf
- Research Laboratory of Ecosystems & Aquatic Resources, National Agronomic Institute of Tunisia, Carthage University, 43 Avenue Charles Nicolle, Tunis 1082, Tunisia
| | - Imen Belhadj Slimen
- Department of Animal Sciences, National Agronomic Institute of Tunisia, Carthage University, 43 Avenue Charles Nicolle, Tunis 1082, Tunisia
- Laboratory of Materials, Molecules, and Application, Preparatory Institute for Scientific and Technical Studies, B.P. 51, La Marsa, Tunis 2078, Tunisia
| | - Manel Ben Larbi
- LR13AGR02, Higher School of Agriculture, University of Carthage, Mateur 7030, Tunisia
| | - Sidrine Koumba
- Unité Transformations & Agroressources, ULR7519, Université d'Artois-UniLaSalle, F-62408 Bethune, France
| | - Patrick Martin
- Unité Transformations & Agroressources, ULR7519, Université d'Artois-UniLaSalle, F-62408 Bethune, France
| | - Naceur M'Hamdi
- Research Laboratory of Ecosystems & Aquatic Resources, National Agronomic Institute of Tunisia, Carthage University, 43 Avenue Charles Nicolle, Tunis 1082, Tunisia
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Abeyta MA, Al-Qaisi M, Horst EA, Mayorga EJ, Rodriguez-Jimenez S, Goetz BM, Carta S, Tucker H, Baumgard LH. Effects of dietary antioxidant supplementation on metabolism and inflammatory biomarkers in heat-stressed dairy cows. J Dairy Sci 2023; 106:1441-1452. [PMID: 36543647 DOI: 10.3168/jds.2022-22338] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 09/20/2022] [Indexed: 12/24/2022]
Abstract
Heat-stress-induced inflammation may be ameliorated by antioxidant supplementation due to the purported effects of increased production of reactive oxygen species or oxidative stress on the gastrointestinal tract barrier. Thus, study objectives were to evaluate whether antioxidant supplementation [AGRADO Plus 2.0 (AP); EW Nutrition] affects metabolism and inflammatory biomarkers in heat-stressed lactating dairy cows. Thirty-two mid-lactation multiparous Holstein cows were assigned to 1 of 4 dietary-environmental treatments: (1) thermoneutral (TN) conditions and fed a control diet (TN-CON; n = 8), (2) TN and fed a diet with AP (10 g antioxidant; n = 8), (3) heat stress (HS) and fed a control diet (HS-CON; n = 8), or (4) HS and fed a diet with AP (HS-AP; n = 8). The trial consisted of a 23-d prefeeding phase and 2 experimental periods (P). Respective dietary treatments were top-dressed starting on d 1 of the prefeeding period and continued daily throughout the duration of the experiment. During P1 (4 d), baseline data were collected. During P2 (7 d), HS was artificially induced using an electric heat blanket (Thermotex Therapy Systems Ltd.). During P2, the effects of treatment, day, and treatment-by-day interaction were assessed using PROC MIXED of SAS (SAS Institute Inc.). Heat stress (treatments 3 and 4) increased rectal, vaginal, and skin temperatures (1.2°C, 1.1°C, and 2.0°C, respectively) and respiration rate (33 breaths per minute) relative to TN cows. As expected, HS decreased dry matter intake, milk yield, and energy-corrected milk yield (32%, 28%, and 28% from d 4 to 7, respectively) relative to TN. There were no effects of AP on body temperature indices or production. Milk fat, protein, and lactose concentrations remained unaltered by HS or AP; however, milk urea nitrogen was increased during HS regardless of AP supplementation (26% relative to TN). Circulating glucose remained unchanged by HS, AP, or time. Additionally, HS decreased circulating glucagon (29% from d 3 to 7 relative to TN), but there was no additional effect of AP. There was a tendency for nonesterified fatty acid concentrations to be increased in HS-AP cows throughout P2 (60% relative to TN-CON), whereas it remained similar in all other treatments. Blood urea nitrogen increased for both HS treatments from d 1 to 3 before steadily decreasing from d 5 to 7, with the overall increase being most pronounced in HS-CON cows (27% relative to TN-CON). Further, supplementing AP decreased blood urea nitrogen in HS-AP on d 3 relative to HS-CON (15%). Circulating serum amyloid A tended to be and lipopolysaccharide binding protein was increased by HS, but neither acute-phase protein was affected by AP. Overall, AP supplementation appeared to marginally alter metabolism but did not meaningfully alter inflammation during HS.
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Affiliation(s)
- M A Abeyta
- Department of Animal Science, Iowa State University, Ames 50011
| | - M Al-Qaisi
- Department of Animal Science, Iowa State University, Ames 50011
| | - E A Horst
- Department of Animal Science, Iowa State University, Ames 50011
| | - E J Mayorga
- Department of Animal Science, Iowa State University, Ames 50011
| | | | - B M Goetz
- Department of Animal Science, Iowa State University, Ames 50011
| | - S Carta
- Department of Animal Science, Iowa State University, Ames 50011
| | - H Tucker
- Novus International, St. Charles, MO 63304
| | - L H Baumgard
- Department of Animal Science, Iowa State University, Ames 50011.
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Sieck RL, Treffer LK, Fuller AM, Ponte Viana M, Khalimonchuk O, Schmidt TB, Yates DT, Petersen JL. Short Communication: Beta-adrenergic agonists alter oxidative phosphorylation in primary myoblasts. J Anim Sci 2022; 100:6652322. [PMID: 35908785 PMCID: PMC9339305 DOI: 10.1093/jas/skac208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/02/2022] [Indexed: 01/12/2023] Open
Abstract
Beta-adrenergic agonists (β-AAs) are widely used supplements in beef and pork production to improve feed efficiency and increase lean muscle mass, yet little is known about the molecular mechanism by which β-AAs achieve this outcome. Our objective was to identify the influence of ractopamine HCl and zilpaterol HCl on mitochondrial respiratory activity in muscle satellite cells isolated from crossbred beef steers (N = 5), crossbred barrows (N = 2), Yorkshire-cross gilts (N = 3), and commercial weather lambs (N = 5). Real-time measurements of oxygen consumption rates (OCRs) were recorded using extracellular flux analyses with a Seahorse XFe24 analyzer. After basal OCR measurements were recorded, zilpaterol HCl, ractopamine HCl, or no β-AA was injected into the assay plate in three technical replicates for each cell isolate. Then, oligomycin, carbonyl cyanide-p-trifluoromethoxyphenylhydrazone, and rotenone were injected into the assay plate sequentially, each inducing a different cellular state. This allowed for the measurement of OCR at these states and for the calculation of the following measures of mitochondrial function: basal respiration, non-mitochondrial respiration, maximal respiration, proton leak, adenosine triphosphate (ATP)-linked respiration, and spare respiratory capacity. Incubation of bovine cells with either zilpaterol HCl or ractopamine HCl increased maximal respiration (P = 0.046) and spare respiratory capacity (P = 0.035) compared with non-supplemented counterparts. No difference (P > 0.05) was observed between zilpaterol HCl and ractopamine HCl for maximal respiration and spare respiratory capacity in bovine cell isolates. No measures of mitochondrial function (basal respiration, non-mitochondrial respiration, maximal respiration, proton leak, ATP-linked respiration, and spare respiratory capacity) were altered by β-AA treatment in ovine or porcine cells. These findings indicate that β-AAs in cattle may improve the efficiency of oxidative metabolism in muscle satellite cells by modifying mitochondrial respiratory activity. The lack of response by ovine and porcine cells to β-AA incubation also demonstrates differing physiological responses to β-AA across species, which helps to explain the variation in its effectiveness as a growth supplement.
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Affiliation(s)
- Renae L Sieck
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583-0908, USA
| | - Leah K Treffer
- Biology Department, Nebraska Wesleyan University, Lincoln, NE 68504, USA
| | - Anna M Fuller
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583-0908, USA
| | - Martonio Ponte Viana
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0664, USA
| | - Oleh Khalimonchuk
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0664, USA
| | - Ty B Schmidt
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583-0908, USA
| | - Dustin T Yates
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583-0908, USA
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7
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Reith RR, Sieck RL, Grijalva PC, Swanson RM, Fuller AM, Diaz DE, Schmidt TB, Yates DT, Petersen JL. Transcriptome analyses indicate that heat stress-induced inflammation in white adipose tissue and oxidative stress in skeletal muscle is partially moderated by zilpaterol supplementation in beef cattle. J Anim Sci 2022; 100:6515375. [PMID: 35079800 PMCID: PMC8919836 DOI: 10.1093/jas/skac019] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/24/2022] [Indexed: 01/27/2023] Open
Abstract
Heat stress (HS) triggers oxidative stress, systemic inflammation, and disrupts growth efficiency of livestock. β-adrenergic agonists supplemented to ruminant livestock improve growth performance, increase skeletal muscle mass, and decrease carcass fat. The objective of this study was to understand the independent and interacting effects of HS and zilpaterol hydrochloride (ZH) supplementation on the transcriptome of subcutaneous white adipose tissue and the longissimus dorsi muscle in steers. Twenty-four Red Angus-based steers were assigned to thermoneutral (TN; Temperature Humidity Index [THI] = 68) or HS (THI = 73-85) conditions and were not supplemented or supplemented with ZH (8.33 mg/kg/d) for 21 d in a 2 × 2 factorial. Steers in the TN condition were pair-fed to the average daily feed intake of HS steers. RNA was isolated from adipose tissue and skeletal muscle samples collected via biopsy on 3, 10, and 21 d and sequenced using 3' Tag-Seq to an achieved average depth of 3.6 million reads/sample. Transcripts, mapped to ARS-UCD1.2, were quantified. Differential expression (DE) analyses were performed in DESeq2 with a significance threshold for false discovery rate of 0.05. In adipose, 4 loci (MISP3, APOL6, SLC25A4, and S100A12) were DE due to ZH on day 3, and 2 (RRAD, ALB) were DE due to the interaction of HS and ZH on day 10 (Padj < 0.05). In muscle, 40 loci (including TENM4 and OAZ1) were DE due to ZH on day 10, and 6 loci (HIF1A, LOC101903734, PDZD9, HNRNPU, MTUS1, and TMCO6) were DE due to environment on day 21 (Padj < 0.05). To explore biological pathways altered by environment, supplement, and their interaction, loci with DE (Praw < 0.05) were evaluated in Ingenuity Pathway Analysis. In adipose, 509 pathways were predicted to be altered (P < 0.01): 202 due to HS, 126 due to ZH, and 181 due to the interaction; these included inflammatory pathways predicted to be upregulated due to HS but downregulated due to the interaction of HS and ZH. In muscle, 113 pathways were predicted to be altered (P < 0.01): 23 due to HS, 66 due to ZH, and 24 due to the interaction of HS and ZH. Loci and pathway data in muscle suggest HS induced oxidative stress and that the stress response was moderated by ZH. Metabolic pathways were predicted to be altered due to HS, ZH, and their interaction in both tissues. These data provide evidence that HS and ZH interact to alter expression of genes in metabolic and immune function pathways and that ZH moderates some adverse effects of HS.
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Affiliation(s)
- Rachel R Reith
- Animal Science Department, University of Nebraska – Lincoln, NE 68583-0908, USA
| | - Renae L Sieck
- Animal Science Department, University of Nebraska – Lincoln, NE 68583-0908, USA
| | - Pablo C Grijalva
- School of Animal and Comparative Biomedical Sciences, University of Arizona – Tucson, AZ 85721, USA
| | - Rebecca M Swanson
- Animal Science Department, University of Nebraska – Lincoln, NE 68583-0908, USA
| | - Anna M Fuller
- Animal Science Department, University of Nebraska – Lincoln, NE 68583-0908, USA
| | - Duarte E Diaz
- School of Animal and Comparative Biomedical Sciences, University of Arizona – Tucson, AZ 85721, USA
| | - Ty B Schmidt
- Animal Science Department, University of Nebraska – Lincoln, NE 68583-0908, USA
| | - Dustin T Yates
- Animal Science Department, University of Nebraska – Lincoln, NE 68583-0908, USA
| | - Jessica L Petersen
- Animal Science Department, University of Nebraska – Lincoln, NE 68583-0908, USA,Corresponding author:
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8
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Cadaret CN, Posont RJ, Swanson RM, Beard JK, Gibbs RL, Barnes TL, Marks-Nelson ES, Petersen JL, Yates DT. Intermittent maternofetal oxygenation during late gestation improved birthweight, neonatal growth, body symmetry, and muscle metabolism in intrauterine growth-restricted lambs. J Anim Sci 2022; 100:6453369. [PMID: 34865027 DOI: 10.1093/jas/skab358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/30/2021] [Indexed: 02/05/2023] Open
Abstract
In humans and animals, intrauterine growth restriction (IUGR) results from fetal programming responses to poor intrauterine conditions. Chronic fetal hypoxemia elevates circulating catecholamines, which reduces skeletal muscle β2 adrenoceptor content and contributes to growth and metabolic pathologies in IUGR-born offspring. Our objective was to determine whether intermittent maternofetal oxygenation during late gestation would improve neonatal growth and glucose metabolism in IUGR-born lambs. Pregnant ewes were housed at 40 °C from the 40th to 95th day of gestational age (dGA) to produce IUGR-born lambs (n = 9). A second group of IUGR-born lambs received prenatal O2 supplementation via maternal O2 insufflation (100% humidified O2, 10 L/min) for 8 h/d from dGA 130 to parturition (IUGR+O2, n = 10). Control lambs (n = 15) were from pair-fed thermoneutral ewes. All lambs were weaned at birth, hand-reared, and fitted with hindlimb catheters at day 25. Glucose-stimulated insulin secretion (GSIS) and hindlimb hyperinsulinemic-euglycemic clamp (HEC) studies were performed at days 28 and 29, respectively. At day 30, lambs were euthanized and ex vivo HEC studies were performed on isolated muscle. Without maternofetal oxygenation, IUGR lambs were 40% lighter (P < 0.05) at birth and maintained slower (P < 0.05) growth rates throughout the neonatal period compared with controls. At 30 d of age, IUGR lambs had lighter (P < 0.05) hindlimbs and flexor digitorum superficialis (FDS) muscles. IUGR+O2 lambs exhibited improved (P < 0.05) birthweight, neonatal growth, hindlimb mass, and FDS mass compared with IUGR lambs. Hindlimb insulin-stimulated glucose utilization and oxidation rates were reduced (P < 0.05) in IUGR but not IUGR+O2 lambs. Ex vivo glucose oxidation rates were less (P < 0.05) in muscle from IUGR but not IUGR+O2 lambs. Surprisingly, β2 adrenoceptor content and insulin responsiveness were reduced (P < 0.05) in muscle from IUGR and IUGR+O2 lambs compared with controls. In addition, GSIS was reduced (P < 0.05) in IUGR lambs and only modestly improved (P < 0.05) in IUGR+O2. Insufflation of O2 also increased (P < 0.05) acidosis and hypercapnia in dams, perhaps due to the use of 100% O2 rather than a gas mixture with a lesser O2 percentage. Nevertheless, these findings show that intermittent maternofetal oxygenation during late gestation improved postnatal growth and metabolic outcomes in IUGR lambs without improving muscle β2 adrenoceptor content.
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Affiliation(s)
- Caitlin N Cadaret
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583
| | - Robert J Posont
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583
| | - Rebecca M Swanson
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583
| | - Joslyn K Beard
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583
| | - Rachel L Gibbs
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583
| | - Taylor L Barnes
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583
| | | | - Jessica L Petersen
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583
| | - Dustin T Yates
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583
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9
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Inflammatory Mediation of Heat Stress-Induced Growth Deficits in Livestock and Its Potential Role as a Target for Nutritional Interventions: A Review. Animals (Basel) 2021; 11:ani11123539. [PMID: 34944316 PMCID: PMC8698153 DOI: 10.3390/ani11123539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/06/2021] [Accepted: 12/10/2021] [Indexed: 12/05/2022] Open
Abstract
Simple Summary Heat stress is a persistent challenge for livestock producers. Molecular changes throughout the body that result from sustained heat stress slow muscle growth and thus are detrimental to carcass yield and value. Feedlot animals are at particularly high risk for heat stress because their confinement limits their ability to pursue shade and other natural cooling behaviors. Changes in infrastructure to reduce the impact of heat stress are often cost-prohibitive, but recent studies have revealed that anti-inflammatory therapies may help to improve growth deficits in heat-stressed animals. This review describes the conditions that cause heat stress and explains the role of inflammation in muscle growth impairment. Additionally, it discusses the potential for several natural anti-inflammatory dietary additives to improve muscle growth outcomes in heat-stressed livestock. Abstract Heat stress is detrimental to well-being and growth performance in livestock, and systemic inflammation arising during chronic heat stress contributes to these poor outcomes. Sustained exposure of muscle and other tissues to inflammation can impair the cellular processes that facilitate muscle growth and intramuscular fat deposition, thus reducing carcass quality and yield. Climate change is expected to produce more frequent extreme heat events, increasing the potential impact of heat stress on sustainable livestock production. Feedlot animals are at particularly high risk for heat stress, as confinement limits their ability to seek cooling from the shade, water, or breeze. Economically practical options to circumvent heat stress in feedlot animals are limited, but understanding the mechanistic role of inflammation in heat stress outcomes may provide the basis for treatment strategies to improve well-being and performance. Feedlot animals receive formulated diets daily, which provides an opportunity to administer oral nutraceuticals and other bioactive products to mitigate heat stress-induced inflammation. In this review, we examine the complex associations between heat stress, systemic inflammation, and dysregulated muscle growth in meat animals. We also present evidence for potential nutraceutical and dietary moderators of inflammation and how they might improve the unique pathophysiology of heat stress.
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10
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Macías-Cruz U, Vicente-Pérez R, Correa-Calderon A, Mellado M, Meza-Herrera CA, Arechiga CF, Avendaño-Reyes L. n-6 Polyunsaturated fatty acids in the feeding of late gestation hair ewes: the effects on thermoregulation, growth, and metabolism of heat-stressed growing lambs. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2021; 65:2077-2086. [PMID: 34226974 DOI: 10.1007/s00484-021-02165-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 04/21/2021] [Accepted: 06/16/2021] [Indexed: 06/13/2023]
Abstract
The objective was to determine the effects of feeding soybean oil (SBO), an ingredient rich in n-6 polyunsaturated fatty acids (PUFA), to late gestation hair ewes on physiological responses, feedlot performance, and serum metabolite and electrolyte concentrations of their growing ewe lambs under outdoor heat stress conditions. Twenty-four Dorper × Pelibuey ewe lambs weaned (body weight = 21.5 ± 0.2 kg, age= 2 months, and multiple birth) born from ewes fed 0, 30, or 60 mg of SBO/kg dry matter (DM) during late gestation were selected (n = 8/treatment) to conduct a 30-day feeding trial during the summer season of a desert region (temperature = 34 °C and temperature-humidity index = 35 units). While rectal temperature was unaffected in any daytime, respiratory rate in the afternoon quadratically increased (P = 0.05) as the SBO levels increased from 0 to 60 mg/kg DM in the maternal diet. Final weight, average daily gain, and feed efficiency linearly increased (P = 0.04) with increasing levels of SBO. Body surface temperatures and serum concentration of glucose, cholesterol, triglyceride, total protein, urea, sodium, potassium, and chlorine did not vary by the SBO inclusion in the maternal diet. In conclusion, feeding late gestation hair ewes with source rich in n-6 PUFA appears to be an effective maternal nutritional strategy to improve post-weaning growth without compromising the thermoregulatory ability of their growing offspring under a heat stress environment.
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Affiliation(s)
- Ulises Macías-Cruz
- Instituto de Ciencias Agrícolas, Universidad Autónoma de Baja California, Valle de Mexicali, Baja California, 21705, México
| | - Ricardo Vicente-Pérez
- Departamento de Producción Agrícola CUCSUR, Universidad de Guadalajara, Autlán de Navarro, Jalisco, 48900, México
| | - Abelardo Correa-Calderon
- Instituto de Ciencias Agrícolas, Universidad Autónoma de Baja California, Valle de Mexicali, Baja California, 21705, México
| | - Miguel Mellado
- Departamento de Nutrición Animal, Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila, 25315, México
| | - Cesar A Meza-Herrera
- Unidad Regional Universitaria de Zonas Áridas, Universidad Autónoma Chapingo, Bermejillo, Durango, 35230, México
| | - Carlos F Arechiga
- Unidad Académica de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Zacatecas, Calera, Zacatecas, 98500, México
| | - Leonel Avendaño-Reyes
- Instituto de Ciencias Agrícolas, Universidad Autónoma de Baja California, Valle de Mexicali, Baja California, 21705, México.
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11
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Most MS, Grijalva PC, Beer HN, Gibbs RL, Hicks ZM, Lacey TA, Schmidt TB, Petersen JL, Yates DT. Dexamethasone and fish oil improve average daily gain but not muscle mass or protein content in feedlot wethers after chronic heat stress. Transl Anim Sci 2021. [DOI: 10.1093/tas/txab163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Micah S Most
- Department of Animal Science, University of Nebraska – Lincoln, NE 68583, USA
| | - Pablo C Grijalva
- Department of Animal Science, University of Nebraska – Lincoln, NE 68583, USA
| | - Haley N Beer
- Department of Animal Science, University of Nebraska – Lincoln, NE 68583, USA
| | - Rachel L Gibbs
- Department of Animal Science, University of Nebraska – Lincoln, NE 68583, USA
| | - Zena M Hicks
- Department of Animal Science, University of Nebraska – Lincoln, NE 68583, USA
| | - Taylor A Lacey
- Department of Animal Science, University of Nebraska – Lincoln, NE 68583, USA
| | - Ty B Schmidt
- Department of Animal Science, University of Nebraska – Lincoln, NE 68583, USA
| | - Jessica L Petersen
- Department of Animal Science, University of Nebraska – Lincoln, NE 68583, USA
| | - Dustin T Yates
- Department of Animal Science, University of Nebraska – Lincoln, NE 68583, USA
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12
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Supplementing zilpaterol hydrochloride to heat-stressed beef cattle for 21 d alters the adipose transcriptome and is predicted to alter stress response pathways. Transl Anim Sci 2021. [DOI: 10.1093/tas/txab158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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13
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Sieck RL, Reith RR, Fuller AM, Grijalva PC, Treffer LK, Swanson RM, Ponte Viana M, Khalimonchuk O, Diaz DE, Schmidt TB, Yates DT, Petersen JL. Beta-adrenergic agonists and heat stress impact skeletal muscle gene expression and mitochondrial function in beef cattle. Transl Anim Sci 2021. [DOI: 10.1093/tas/txab157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Renae L Sieck
- Department of Animal Science, University of Nebraska–Lincoln, Lincoln, NE 68583, USA
| | - Rachel R Reith
- Department of Animal Science, University of Nebraska–Lincoln, Lincoln, NE 68583, USA
| | - Anna M Fuller
- Department of Animal Science, University of Nebraska–Lincoln, Lincoln, NE 68583, USA
| | - Pablo C Grijalva
- Department of Animal Science, University of Nebraska–Lincoln, Lincoln, NE 68583, USA
- Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ 85721, USA
| | - Leah K Treffer
- Department of Animal Science, University of Nebraska–Lincoln, Lincoln, NE 68583, USA
- Nebraska Wesleyan University, Lincoln, NE 68504, USA
| | - Rebecca M Swanson
- Department of Animal Science, University of Nebraska–Lincoln, Lincoln, NE 68583, USA
| | - Martonio Ponte Viana
- Department of Biochemistry, University of Nebraska–Lincoln, Lincoln, NE 68588, USA
| | - Oleh Khalimonchuk
- Department of Biochemistry, University of Nebraska–Lincoln, Lincoln, NE 68588, USA
| | - Duarte E Diaz
- Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ 85721, USA
| | - Ty B Schmidt
- Department of Animal Science, University of Nebraska–Lincoln, Lincoln, NE 68583, USA
| | - Dustin T Yates
- Department of Animal Science, University of Nebraska–Lincoln, Lincoln, NE 68583, USA
| | - Jessica L Petersen
- Department of Animal Science, University of Nebraska–Lincoln, Lincoln, NE 68583, USA
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14
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Grijalva PC, Most MS, Gibbs RL, Hicks ZM, Lacey TA, Beer HN, Schmidt TB, Petersen JL, Yates DT. Fish oil and dexamethasone administration partially mitigates heat stress-induced changes in circulating leukocytes and metabolic indicators in feedlot wethers. Transl Anim Sci 2021. [DOI: 10.1093/tas/txab167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- Pablo C Grijalva
- Department of Animal Science, University of Nebraska–Lincoln, NE 68583, USA
| | - Micah S Most
- Department of Animal Science, University of Nebraska–Lincoln, NE 68583, USA
| | - Rachel L Gibbs
- Department of Animal Science, University of Nebraska–Lincoln, NE 68583, USA
| | - Zena M Hicks
- Department of Animal Science, University of Nebraska–Lincoln, NE 68583, USA
| | - Taylor A Lacey
- Department of Animal Science, University of Nebraska–Lincoln, NE 68583, USA
| | - Haley N Beer
- Department of Animal Science, University of Nebraska–Lincoln, NE 68583, USA
| | - Ty B Schmidt
- Department of Animal Science, University of Nebraska–Lincoln, NE 68583, USA
| | - Jessica L Petersen
- Department of Animal Science, University of Nebraska–Lincoln, NE 68583, USA
| | - Dustin T Yates
- Department of Animal Science, University of Nebraska–Lincoln, NE 68583, USA
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15
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Hicks ZM, Yates DT. Going Up Inflame: Reviewing the Underexplored Role of Inflammatory Programming in Stress-Induced Intrauterine Growth Restricted Livestock. FRONTIERS IN ANIMAL SCIENCE 2021; 2. [PMID: 34825243 PMCID: PMC8612632 DOI: 10.3389/fanim.2021.761421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The impact of intrauterine growth restriction (IUGR) on health in humans is well-recognized. It is the second leading cause of perinatal mortality worldwide, and it is associated with deficits in metabolism and muscle growth that increase lifelong risk for hypertension, obesity, hyperlipidemia, and type 2 diabetes. Comparatively, the barrier that IUGR imposes on livestock production is less recognized by the industry. Meat animals born with low birthweight due to IUGR are beset with greater early death loss, inefficient growth, and reduced carcass merit. These animals exhibit poor feed-to-gain ratios, less lean mass, and greater fat deposition, which increase production costs and decrease value. Ultimately, this reduces the amount of meat produced by each animal and threatens the economic sustainability of livestock industries. Intrauterine growth restriction is most commonly the result of fetal programming responses to placental insufficiency, but the exact mechanisms by which this occurs are not well-understood. In uncompromised pregnancies, inflammatory cytokines are produced at modest rates by placental and fetal tissues and play an important role in fetal development. However, unfavorable intrauterine conditions can cause cytokine activity to be excessive during critical windows of fetal development. Our recent evidence indicates that this impacts developmental programming of muscle growth and metabolism and contributes to the IUGR phenotype. In this review, we outline the role of inflammatory cytokine activity in the development of normal and IUGR phenotypes. We also highlight the contributions of sheep and other animal models in identifying mechanisms for IUGR pathologies.
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Affiliation(s)
- Zena M Hicks
- Stress Physiology Laboratory, Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Dustin T Yates
- Stress Physiology Laboratory, Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE, United States
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16
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Barnes TL, Burrack RM, Schmidt TB, Petersen JL, Yates DT. Sustained heat stress elevated corneal and body surface temperatures and altered circulating leukocytes and metabolic indicators in wether lambs supplemented with ractopamine or zilpaterol. J Anim Sci 2021; 99:6346707. [PMID: 34370018 DOI: 10.1093/jas/skab236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 08/06/2021] [Indexed: 12/11/2022] Open
Abstract
Understanding how β adrenergic agonists influence the physiology of heat stress could lead to mitigation options. We sought to investigate body surface temperatures in feedlot wethers supplemented with ractopamine or zilpaterol and exposed to heat stress for 18 d. Corneal and skin temperatures were assessed via infrared thermography at 1- and 2-m distances. Rectal temperatures and circulating leukocytes, metabolites, and electrolytes were also measured. Heat stress increased (P < 0.05) rectal temperatures in unsupplemented and zilpaterol-supplemented lambs but not in ractopamine-supplemented lambs. Heat stress also increased (P < 0.05) surface temperatures of the cornea, nose, ear, and back, regardless of supplement. Observations were comparable between thermography performed at 1 and 2 m, and higher emissivity settings generally produced less variation. Heat stress tended to increase (P = 0.08) blood monocytes in unsupplemented but not ractopamine- or zilpaterol-supplemented lambs. Granulocytes were increased (P < 0.05) by heat stress in ractopamine-supplemented lambs but decreased (P < 0.05) in zilpaterol-supplemented lambs. Blood glucose, triglycerides, and cholesterol did not differ among groups, and blood lactate was reduced (P < 0.05) by heat stress in zilpaterol-supplemented lambs only. Blood Na+ was reduced (P < 0.05) and Ca2+ increased (P < 0.05) by heat stress, regardless of supplement. These findings indicate that β1- and β2-adrenergic agonists differentially relieve some but not all heat stress-induced changes in stress indicators. Moreover, corneal and skin surface temperatures measured by infrared thermography reasonably identified body temperature changes at a distance of 2 m.
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Affiliation(s)
- Taylor L Barnes
- Department of Animal Science, University of Nebraska-Lincoln, NE 68583, USA
| | - Rachel M Burrack
- Department of Animal Science, University of Nebraska-Lincoln, NE 68583, USA
| | - Ty B Schmidt
- Department of Animal Science, University of Nebraska-Lincoln, NE 68583, USA
| | - Jessica L Petersen
- Department of Animal Science, University of Nebraska-Lincoln, NE 68583, USA
| | - Dustin T Yates
- Department of Animal Science, University of Nebraska-Lincoln, NE 68583, USA
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17
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Cadaret CN, Abebe MD, Barnes TL, Posont RJ, Yates DT. Lipopolysaccharide endotoxin injections elevated salivary TNFα and corneal temperatures and induced dynamic changes in circulating leukocytes, inflammatory cytokines, and metabolic indicators in wether lambs. J Anim Sci 2021; 99:6237829. [PMID: 33871612 DOI: 10.1093/jas/skab120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 04/14/2021] [Indexed: 12/17/2022] Open
Abstract
Pathogenic infections increase morbidity and reduce performance in livestock, and thus understanding the comprehensive physiological changes associated with infections can benefit production sustainability. In this study, we sought to investigate such physiological responses to an acute immune challenge in lambs. Polypay wethers received single IV injections of 1.5 µg/kg lipopolysaccharide endotoxin (LPS-injected; n = 6) or saline (controls; n = 6). Corneal temperatures (via infrared thermography), rectal temperatures, blood, plasma, and saliva were assessed every 2 hr for 10 hr after injections. Blood was also assessed at 24 hr. LPS-injected lambs exhibited elevated (P < 0.05) corneal and rectal temperatures that peaked at 4 hr but were still slightly greater (P < 0.05) than controls at 10 hr. Circulating total white blood cells, monocytes, and granulocytes were reduced (P < 0.05) in LPS-injected lambs within the first 4 hr but were subsequently greater (P < 0.05) than in controls. Lymphocytes were reduced (P < 0.05) in LPS-injected lambs over the first 8 hr and did not differ from controls thereafter. Red blood cells, hematocrit, and hemoglobin were increased (P < 0.05) in LPS-injected lambs over the first 6 hr, indicating mild dehydration. Blood glucose briefly increased (P < 0.05) in LPS-injected lambs at 2 hr but was less (P < 0.05) than in controls thereafter. Blood lactate was greater (P < 0.05) in LPS-injected lambs between 6 and 10 hr after injections, which together with reduced (P < 0.05) CO2 partial pressure indicated a metabolic shift toward glycolysis. LPS-injected lambs exhibited a transient increase (P < 0.05) in plasma TNFα at 2 and 4 hr only and sustained increases (P < 0.05) in CXCL9 and CXCL10 beginning at 6 and 4 hr, respectively. They also exhibited a mild, paradoxical increase (P < 0.05) in the anti-inflammatory sFRP3. Salivary TNFα was increased (P < 0.05) in LPS-injected lambs at 2 hr only. Regression analyses indicated that rectal temperatures were a generally poor predictor of the other inflammatory components in this study, with the exception of circulating leukocyte populations. Likewise, correlations among the 10 cytokines measured in this study were generally weak, with notable exceptions between CXCL9 and CXCL10 and between IL-21 and IFNγ. These findings demonstrate that physiological changes to even short-lived immune challenges are dynamic in nature and persist beyond the time frame of febrile responses and other common assessments.
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Affiliation(s)
- Caitlin N Cadaret
- Department of Animal Science, University of Nebraska-Lincoln, NE 68583, USA
| | - Marytza D Abebe
- Department of Animal Science, University of Nebraska-Lincoln, NE 68583, USA
| | - Taylor L Barnes
- Department of Animal Science, University of Nebraska-Lincoln, NE 68583, USA
| | - Robert J Posont
- Department of Animal Science, University of Nebraska-Lincoln, NE 68583, USA
| | - Dustin T Yates
- Department of Animal Science, University of Nebraska-Lincoln, NE 68583, USA
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18
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Posont RJ, Cadaret CN, Beard JK, Swanson RM, Gibbs RL, Marks-Nelson ES, Petersen JL, Yates DT. Maternofetal inflammation induced for 2 wk in late gestation reduced birth weight and impaired neonatal growth and skeletal muscle glucose metabolism in lambs. J Anim Sci 2021; 99:6199898. [PMID: 33780540 DOI: 10.1093/jas/skab102] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 03/24/2021] [Indexed: 12/22/2022] Open
Abstract
Intrauterine stress impairs growth and metabolism in the fetus and offspring. We recently found that sustained maternofetal inflammation resulted in intrauterine growth-restricted (MI-IUGR) fetuses with asymmetric body composition, impaired muscle glucose metabolism, and β-cell dysfunction near term. These fetuses also exhibited heightened inflammatory tone, which we postulated was a fetal programming mechanism for the IUGR phenotype. Thus, the objective of this study was to determine whether poor growth and metabolism persisted in MI-IUGR lambs after birth. Polypay ewes received serial lipopolysaccharide or saline injections in the first 2 wk of the third trimester of pregnancy to produce MI-IUGR (n = 13) and control (n = 12) lambs, respectively. Lambs were catheterized at 25 d of age. β-Cell function was assessed at 29 d, hindlimb glucose metabolism at 30 d, and daily blood parameters from day 26 to 31. Glucose metabolism was also assessed in flexor digitorum superficialis (FDS) muscle isolated at necropsy on day 31. Asymmetric body composition persisted in MI-IUGR neonates, as these lambs were lighter (P < 0.05) than controls at birth and 31 d, but body and cannon bone lengths did not differ at either age. FDS muscles from MI-IUGR lambs were smaller (P < 0.05) and exhibited reduced (P < 0.05) glucose oxidation and Akt phosphorylation but similar glucose uptake compared with controls when incubated in basal or insulin-spiked media. Similarly, hindlimb glucose oxidation was reduced (P < 0.05) in MI-IUGR lambs under basal and hyperinsulinemic conditions, but hindlimb glucose utilization did not differ from controls. Circulating urea nitrogen and cholesterol were reduced (P < 0.05), and triglycerides, high-density lipoprotein cholesterol, and glucose-to-insulin ratios were increased (P < 0.05) in MI-IUGR lambs. Glucose and insulin concentrations did not differ between groups during basal or hyperglycemic conditions. Although circulating monocyte and granulocyte concentrations were greater (P < 0.05) in MI-IUGR lambs, plasma tumor necrosis factor α (TNFα) was reduced (P < 0.05). FDS muscle contained greater (P < 0.05) TNF receptor 1 (TNFR1) and IκBα protein content. These findings indicate that maternofetal inflammation in late pregnancy results in fetal programming that impairs growth capacity, muscle glucose oxidation, and lipid homeostasis in offspring. Inflammatory indicators measured in this study appear to reflect heightened cytokine sensitivity in muscle and compensatory systemic responses to it.
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Affiliation(s)
- Robert J Posont
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Caitlin N Cadaret
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Joslyn K Beard
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Rebecca M Swanson
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Rachel L Gibbs
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Eileen S Marks-Nelson
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Jessica L Petersen
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Dustin T Yates
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
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19
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López-Baca MÁ, Avendaño-Reyes L, Macías-Cruz U, Muhlia-Almazán A, Valenzuela-Melendres M, Peña-Ramos EA, Islava-Lagarda TY, González-Rios H. Muscle fiber morphometry and physicochemical characteristics of the Longissimus thoracis muscle of hair male lambs fed zilpaterol hydrochloride and implanted with steroids. Meat Sci 2021; 177:108490. [PMID: 33744607 DOI: 10.1016/j.meatsci.2021.108490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 03/04/2021] [Accepted: 03/05/2021] [Indexed: 10/22/2022]
Abstract
Muscle fiber morphometry and physicochemical characteristics were evaluated in LT muscles obtained from entire male lambs treated with zilpaterol hydrochloride (ZH, 0 and 0.15 mg/kg body weight) and/or steroidal implant (SI, with and without trenbolone acetate/estradiol). ZH and SI acted synergistically to increase LT area, type-IIb fiber cross-sectional area and soluble collagen content, likewise to decrease metmyoglobin concentration and insoluble collagen content. Ash content and ultimate pH showed a decrease due to an antagonistic effect between ZH and SI. Content of total collagen, protein, fat, moisture, oxidized lipids and water-holding capacity were unaffected by ZH and SI. Supplemental ZH, but not SI, decreased all color parameters and tended to increase shear force. Overall, the SI implantation of male lambs followed by a ZH supplementation promoted greater LT hypertrophy, without affecting protein and fat content, and physicochemical characteristics in their meat.
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Affiliation(s)
- M Ángeles López-Baca
- Centro de Investigación en Alimentación y Desarrollo, A. C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Hermosillo, Sonora 83304, Mexico
| | - Leonel Avendaño-Reyes
- Universidad Autónoma de Baja california, Instituto de Ciencias Agrícolas, Valle de Mexicali, Baja California 21705, Mexico
| | - Ulises Macías-Cruz
- Universidad Autónoma de Baja california, Instituto de Ciencias Agrícolas, Valle de Mexicali, Baja California 21705, Mexico
| | - Adriana Muhlia-Almazán
- Centro de Investigación en Alimentación y Desarrollo, A. C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Hermosillo, Sonora 83304, Mexico
| | - Martín Valenzuela-Melendres
- Centro de Investigación en Alimentación y Desarrollo, A. C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Hermosillo, Sonora 83304, Mexico
| | - Etna Aida Peña-Ramos
- Centro de Investigación en Alimentación y Desarrollo, A. C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Hermosillo, Sonora 83304, Mexico
| | - Thalia Y Islava-Lagarda
- Centro de Investigación en Alimentación y Desarrollo, A. C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Hermosillo, Sonora 83304, Mexico
| | - Humberto González-Rios
- Centro de Investigación en Alimentación y Desarrollo, A. C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Hermosillo, Sonora 83304, Mexico.
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Sieck RL, Treffer LK, Ponte Viana M, Khalimonchuk O, Schmidt TB, Yates DT, Petersen JL. Beta-adrenergic agonists increase maximal output of oxidative phosphorylation in bovine satellite cells. Transl Anim Sci 2021; 4:S94-S97. [PMID: 33381728 PMCID: PMC7754214 DOI: 10.1093/tas/txaa112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 07/08/2020] [Indexed: 01/29/2023] Open
Affiliation(s)
- Renae L Sieck
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Leah K Treffer
- Biology Department, Nebraska Wesleyan University, Lincoln, NE
| | | | - Oleh Khalimonchuk
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE
| | - Ty B Schmidt
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Dustin T Yates
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Jessica L Petersen
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
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21
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Reith RR, Sieck RL, Grijalva PC, Duffy EM, Swanson RM, Fuller AM, Beede KA, Beard JK, Diaz DE, Schmidt TB, Yates DT, Petersen JL. Heat stress and β-adrenergic agonists alter the adipose transcriptome and fatty acid mobilization in ruminant livestock. Transl Anim Sci 2021; 4:S141-S144. [PMID: 33381738 PMCID: PMC7754221 DOI: 10.1093/tas/txaa122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 07/08/2020] [Indexed: 01/16/2023] Open
Affiliation(s)
- Rachel R Reith
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Renae L Sieck
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Pablo C Grijalva
- Department of Animal & Comparative Biomedical Sciences, University of Arizona-Tucson, Tucson, AZ
| | - Erin M Duffy
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Rebecca M Swanson
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Anna M Fuller
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Kristin A Beede
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Joslyn K Beard
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Duarte E Diaz
- Department of Animal & Comparative Biomedical Sciences, University of Arizona-Tucson, Tucson, AZ
| | - Ty B Schmidt
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Dustin T Yates
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Jessica L Petersen
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
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22
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Feedlot growth, carcass characteristics and meat quality of hair breed male lambs exposed to seasonal heat stress (winter vs. summer) in an arid climate. Meat Sci 2020; 169:108202. [DOI: 10.1016/j.meatsci.2020.108202] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 05/21/2020] [Accepted: 05/21/2020] [Indexed: 01/26/2023]
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23
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Swanson RM, Tait RG, Galles BM, Duffy EM, Schmidt TB, Petersen JL, Yates DT. Heat stress-induced deficits in growth, metabolic efficiency, and cardiovascular function coincided with chronic systemic inflammation and hypercatecholaminemia in ractopamine-supplemented feedlot lambs. J Anim Sci 2020; 98:5840746. [PMID: 32428228 DOI: 10.1093/jas/skaa168] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 05/13/2020] [Indexed: 01/03/2023] Open
Abstract
Heat stress hinders growth and well-being in livestock, an effect that is perhaps exacerbated by the β1 agonist ractopamine. Heat stress deficits are mediated in part by reduced feed intake, but other mechanisms involved are less understood. Our objective was to determine the direct impact of heat stress on growth and well-being in ractopamine-supplemented feedlot lambs. Commercial wethers were fed under heat stress (40 °C) for 30 d, and controls (18 °C) were pair-fed. In a 2 × 2 factorial, lambs were also given a daily gavage of 0 or 60 mg ractopamine. Growth, metabolic, cardiovascular, and stress indicators were assessed throughout the study. At necropsy, 9th to 12th rib sections (four-rib), internal organs, and feet were assessed, and sartorius muscles were collected for ex vivo glucose metabolic studies. Heat stress increased (P < 0.05) rectal temperatures and respiration rates throughout the study and reduced (P < 0.05) weight gain and feed efficiency over the first week, ultrasonic loin-eye area and loin depth near the end of the study, and four-rib weight at necropsy. Fat content of the four-rib and loin were also reduced (P < 0.05) by heat stress. Ractopamine increased (P < 0.05) loin weight and fat content and partially moderated the impact of heat stress on rectal temperature and four-rib weight. Heat stress reduced (P < 0.05) spleen weight, increased (P < 0.05) adrenal and lung weights, and was associated with hoof wall overgrowth but not organ lesions. Ractopamine did not affect any measured indicators of well-being. Heat stress reduced (P < 0.05) blood urea nitrogen and increased (P < 0.05) circulating monocytes, granulocytes, and total white blood cells as well as epinephrine, TNFα, cholesterol, and triglycerides. Cortisol and insulin were not affected. Heat stress reduced (P < 0.05) blood pressure and heart rates in all lambs and increased (P < 0.05) left ventricular wall thickness in unsupplemented but not ractopamine-supplemented lambs. No cardiac arrhythmias were observed. Muscle glucose uptake did not differ among groups, but insulin-stimulated glucose oxidation was reduced (P < 0.05) in muscle from heat-stressed lambs. These findings demonstrate that heat stress impairs growth, metabolism, and well-being even when the impact of feed intake is eliminated by pair-feeding and that systemic inflammation and hypercatecholaminemia likely contribute to these deficits. Moreover, ractopamine improved muscle growth indicators without worsening the effects of heat stress.
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Affiliation(s)
- Rebecca M Swanson
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Richard G Tait
- Bioinformatics and Biostatistics, Neogen GeneSeek, Lincoln, NE
| | - Beth M Galles
- School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE
| | - Erin M Duffy
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Ty B Schmidt
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Jessica L Petersen
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
| | - Dustin T Yates
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE
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