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Contreras-Solís I, Pasciu V, Porcu C, Sotgiu FD, Todorova N, Baralla E, Mara L, Gallus M, Cabiddu A, Dattena M, Abecia JA, Berlinguer F. The Effect of By-Pass Linseed Oil Supplementation on the Maternal Antioxidant System during the Embryo-Maternal Recognition Period in Ewes. Animals (Basel) 2023; 13:2565. [PMID: 37627356 PMCID: PMC10451800 DOI: 10.3390/ani13162565] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/01/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
This study analyzed the effects of dietary supplementation with by-pass linseed oil (LO; rich in α-linolenic acid) on maternal antioxidant systems at Days 14 and 16 of pregnancy in Sarda ewes. This trial used sixteen dry ewes. Eight ewes (CT group) were fed with a control diet without LO, and eight ewes (LO group) were fed with a diet supplemented with LO (10.8 g of α-linolenic acid/ewe/day). Both diets had similar crude protein and energy levels. The experiment included 10 days of an adaptation period and 31 days of a supplementation period. This supplementation period was divided into Period -2 (from Day -15 to -8), Period -1 (from Day -7 to -1; before synchronized mating period/Day 0), Period +1 (from Day +1 to + 7 after mating), and Period +2 (from Day +8 to +15 after mating). Estrous synchronization was induced in all the ewes using an intravaginal sponge (45 mg fluorgestone acetate) for 14 days and equine chorionic gonadotropin (350 UI/ewe) at the end of the treatment. On Days 14 (CT, N = 4; LO, N = 4) and 16 (CT, N = 4; LO, N = 4) after mating, the ewes were slaughtered. Samples of plasma, uterine, and luteal tissues were collected. Thiols, total antioxidant activity (TEAC), superoxide dismutase (SOD) activity, and malondialdehyde (MDA) content were measured. On Day 16, thiol and TEAC in luteal tissues were higher in the LO group when compared with the control one (p < 0.05). Moreover, TEAC was higher for the LO group in uterine tissues on Days 14 and 16 (p < 0.05). SOD activity was higher in the LO group in luteal and uterine tissues on Day 14 and Day 16, respectively (p < 0.001). On Day 16, uterine MDA content was lower for the LO group (p < 0.001). No differences were found between groups at the plasmatic level. However, the by-pass LO supplementation enhanced the analyzed antioxidant parameters in luteal and uterine tissues. In conclusion, these results demonstrate that by-pass LO supplementation exerted a positive effect on antioxidative defenses on maternal structures during the embryo-maternal recognition period in ewes. Thus, this could contribute to improving the maternal environment during the embryo-maternal recognition period in mammals.
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Affiliation(s)
- Ignacio Contreras-Solís
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy; (C.P.); (F.D.S.); (N.T.); (E.B.); (F.B.)
| | - Valeria Pasciu
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy; (C.P.); (F.D.S.); (N.T.); (E.B.); (F.B.)
| | - Cristian Porcu
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy; (C.P.); (F.D.S.); (N.T.); (E.B.); (F.B.)
| | - Francesca D. Sotgiu
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy; (C.P.); (F.D.S.); (N.T.); (E.B.); (F.B.)
| | - Neda Todorova
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy; (C.P.); (F.D.S.); (N.T.); (E.B.); (F.B.)
| | - Elena Baralla
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy; (C.P.); (F.D.S.); (N.T.); (E.B.); (F.B.)
| | - Laura Mara
- Department of Animal Science, AGRIS Sardegna, Loc. Bonassai, 07100 Sassari, Italy; (L.M.); (M.G.); (A.C.); (M.D.)
| | - Marilia Gallus
- Department of Animal Science, AGRIS Sardegna, Loc. Bonassai, 07100 Sassari, Italy; (L.M.); (M.G.); (A.C.); (M.D.)
| | - Andrea Cabiddu
- Department of Animal Science, AGRIS Sardegna, Loc. Bonassai, 07100 Sassari, Italy; (L.M.); (M.G.); (A.C.); (M.D.)
| | - Maria Dattena
- Department of Animal Science, AGRIS Sardegna, Loc. Bonassai, 07100 Sassari, Italy; (L.M.); (M.G.); (A.C.); (M.D.)
| | | | - Fiammetta Berlinguer
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy; (C.P.); (F.D.S.); (N.T.); (E.B.); (F.B.)
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Khnissi S, Bomboi G, Khémiri I, Salem IB, Dattena M, Sai S, Mustapha SB, Cabiddu A, Lassoued N. Incorporation of fresh leaves of wormwood (
Artemisia herba alba
) and/or rosemary (
Rosmarinus officinalis
) in the diet of rams: Effect on testicular function, sexual behavior, and blood parameters. Food Sci Nutr 2023. [DOI: 10.1002/fsn3.3293] [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: 03/30/2023] Open
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Cabiddu A, Carrillo S, Contini S, Spada S, Acciaro M, Giovanetti V, Decandia M, Lucini L, Bertuzzi T, Gallo A, Salis L. Dairy Sheep Grazing Management and Pasture Botanical Composition Affect Milk Macro and Micro Components: A Methodological Approach to Assess the Main Managerial Factors at Farm Level. Animals (Basel) 2022; 12:ani12192675. [PMID: 36230416 PMCID: PMC9559587 DOI: 10.3390/ani12192675] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/23/2022] [Accepted: 09/28/2022] [Indexed: 11/05/2022] Open
Abstract
Simple Summary Studies on the management factors that affect milk components at the farm level are important for understanding how to transfer the results from experimental study. Plant phenological stages and partially fresh herbage intakes affect the lactose and milk fatty acid profile. The botanical composition of the grassland partially affects the milk’s phenol content. A few small relationships between plant phenols and milk colour could be of interest to explain the changes in milk colour parameters. Abstract The fatty acid profile, vitamins A and E, cholesterol, antioxidant power colour and the phenols profile of Sarda sheep milk from 11 commercial sheep flocks managed under permanent grassland were investigated. In each farm, the structural and managerial data and milk samples were collected during four periods (sampling dates, SD): January, March, May, and July. Data from the milk composition (fat, protein, casein, lactose, and somatic cell count), 68 fatty acids, 7 phenols, 1 total gallocatechin equivalent, ferric reducing antioxidant power, vitamins A and E, cholesterol, degree of antioxidant protection, and the colour (b *, a * and L *) were analyzed by multivariate factorial analysis using a principal component analysis approach. A proc mixed model for repeated measurement to point out the studied factors affecting significant macro and micro milk composition was also used. Only the first five components were detailed in this paper, with approximately 70% of the explained variance detected. PC1 presented the highest positive loadings for milk lactose, de novo FA synthesis and the BH intermediate, whereas OBCFA had negative loadings values. The PC2, LCFA, UFA, MUFA, vitamins E, and DAP showed positive loadings values, while SFA had a negative value. The PC3 showed a high positive loading for total phenols and non-flavonoids. PC4 presented a high positive loading for the milk macro-composition and negative values for n-3 FAs. The PC5 is characterized by high positive loadings for the a * and L * colour parameters whereas negative loadings were detected for the milk flavonoids content. These preliminary results could help to establish future threshold values for the biomarkers in milk sourced from grazing dairy sheep in natural, permanent pasture-based diets.
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Affiliation(s)
- Andrea Cabiddu
- Agris Agricultural Research Agency of Sardinia, Loc. Bonassai, Olmedo, 07040 Sassari, Italy
- Correspondence:
| | - Sebastian Carrillo
- Facultad de Estudios Superiores Cuautitlán, National Autonomous University of Mexico, Mexico City 54714, Mexico
| | - Salvatore Contini
- Agris Agricultural Research Agency of Sardinia, Loc. Bonassai, Olmedo, 07040 Sassari, Italy
| | - Simona Spada
- Agris Agricultural Research Agency of Sardinia, Loc. Bonassai, Olmedo, 07040 Sassari, Italy
| | - Marco Acciaro
- Agris Agricultural Research Agency of Sardinia, Loc. Bonassai, Olmedo, 07040 Sassari, Italy
| | - Valeria Giovanetti
- Agris Agricultural Research Agency of Sardinia, Loc. Bonassai, Olmedo, 07040 Sassari, Italy
| | - Mauro Decandia
- Agris Agricultural Research Agency of Sardinia, Loc. Bonassai, Olmedo, 07040 Sassari, Italy
| | - Luigi Lucini
- Department for Sustainable Food Process, Catholic University of the Sacred Heart, Via Emilia Parmense, 84, 29122 Piacenza, Italy
| | - Terenzio Bertuzzi
- Department of Animal Science, Food and Nutrition (Diana), Catholic University of the Sacred Heart, Via Emilia Parmense, 84, 29122 Piacenza, Italy
| | - Antonio Gallo
- Department of Animal Science, Food and Nutrition (Diana), Catholic University of the Sacred Heart, Via Emilia Parmense, 84, 29122 Piacenza, Italy
| | - Lorenzo Salis
- Agris Agricultural Research Agency of Sardinia, Loc. Bonassai, Olmedo, 07040 Sassari, Italy
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Molle G, Gregorini P, Cabiddu A, Decandia M, Giovanetti V, Sitzia M, Dattena M, Porcu C, Pasciu V, Gonzalez-Bulnes A, Berlinguer F, Cannas A. Does the timing of pasture allocation affect rumen and plasma metabolites and ghrelin, insulin and cortisol profile in dairy ewes? Front Vet Sci 2022; 9:969950. [PMID: 36204296 PMCID: PMC9530272 DOI: 10.3389/fvets.2022.969950] [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: 06/15/2022] [Accepted: 08/31/2022] [Indexed: 11/28/2022] Open
Abstract
A study was undertaken to assess the impact of the timing of grazing on rumen and plasma metabolites and some metabolic hormones in lactating dairy sheep allocated to an Italian ryegrass (Lolium multiflorum Lam) pasture in spring for 4 h/d. Twenty-four mid lactation Sarda ewes stratified for milk yield, body weight, and body condition score, were divided into four homogeneous groups randomly allocated to the treatments (2 replicate groups per treatment). Treatments were morning (AM, from 08:00 to 12:00) and afternoon pasture allocation (PM, from 15:30 to 19:30). Samples of rumen liquor (day 39) and blood plasma (days 17 and 34 of the experimental period) were collected before and after the grazing sessions. Moreover, on days 11 and 35, grazing time was assessed by direct observation and herbage intake measured by the double weighing procedure. Grazing time was longer in PM than AM ewes (P < 0.001) but herbage intake was undifferentiated between groups. The intake of water-soluble carbohydrates at pasture was higher in PM than AM ewes (P < 0.05). The post-grazing propionic and butyric acid concentration, as measured on day 39, were higher in PM than AM ewes (P < 0.05). The basal level of glucose on day 34 and insulin (on both sampling days) were higher in PM than AM (P < 0.05). The opposite trend was detected for non-esterified fatty acids (P < 0.05, day 34) and urea (both days). Pasture allocation in the afternoon rather than in the morning decreased plasma concentration of ghrelin (P < 0.001) and cortisol (P < 0.001), with a smoothed trend on day 34 in the latter variable. To conclude, postponing the pasture allocation to afternoon increased the intake of WSC, favoring a glucogenic pattern of rumen fermentation and a rise of glucose and insulin levels in blood, although these effects were not consistent across the whole experimental period. Moreover, the afternoon grazing decreased the level of cortisol and ghrelin, suggesting a higher satiation-relaxing effect.
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Affiliation(s)
| | - Pablo Gregorini
- Department of Agricultural Sciences, Lincoln University, Lincoln, New Zealand
| | | | | | | | | | | | - Cristian Porcu
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Valeria Pasciu
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Antonio Gonzalez-Bulnes
- Department of Animal Health and Production, Faculty of Veterinary Sciences, CEU Universities, Valencia, Spain
| | - Fiammetta Berlinguer
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
- *Correspondence: Fiammetta Berlinguer
| | - Antonello Cannas
- Department of Agriculture, University of Sassari, Sassari, Italy
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Cabiddu A, Peratoner G, Valenti B, Monteils V, Martin B, Coppa M. A quantitative review of on-farm feeding practices to enhance the quality of grassland-based ruminant dairy and meat products. Animal 2021; 16 Suppl 1:100375. [PMID: 34688562 DOI: 10.1016/j.animal.2021.100375] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 02/15/2021] [Revised: 08/27/2021] [Accepted: 09/01/2021] [Indexed: 11/28/2022] Open
Abstract
In the last decades, a large body of evidence has highlighted the major role of feeding management practices in improving specific nutritional, technological and sensory quality traits of ruminant products. However, results have been mostly obtained under controlled conditions, and have been rarely validated on-farm. Therefore, a quantitative review was conducted to quantify the effects of on-farm feeding management practices on carotenoids, fat-soluble vitamins, colour, fatty acids (FAs), terpenes and sensory properties in the main animal product categories (PCs): dairy products from cattle (DC), sheep (DS) and goat (DG), and meat from cattle (MC) and sheep (MS). Four feeding scenarios were selected according to the consistency of on-farm studies in the literature: (a) feeding "Fresh herbage" instead of conserved forages; (b) ban any form of silage ("Silage-free"); (c) ban maize silage ("Maize silage-free"); (d) feeding forages from permanent grasslands rich in species or plant secondary metabolites (PSMs) ("PSM-rich permanent grassland"). Feeding fresh herbage increased the concentration of carotenoids, fat-soluble vitamin, n-3 FA, rumenic acid, and branched chain FA (BCFA), and reduced the concentration of saturated FA, for all PC, with overall stronger effect for dairy products than for meat. The texture of meat and dairy products was marginally affected, whereas feeding fresh herbage decreased lactic and increased vegetal notes in DC. The "Silage-free" feeding scenario resulted in increased vaccenic acid, rumenic acid, BCFA, and C18:3n-3 in DC. The "Maize silage-free" feeding scenario lowered n-6 FA whereas increased n-3, rumenic acid and BCFA concentrations in DC. Feeding ruminants with forages from "PSM-rich permanent grasslands" increased monounsaturated FA, n-3 FA and rumenic acid and decreased n-6 FA in dairy products, and only marginally affected meat FA composition. The DC from "PSM-rich permanent grasslands" showed higher intense, spicy and animal notes. Overall, the differences between feeding management practices observed on farm were smaller than those observed under controlled trials. Several confounding factors, not controlled when operating under on-farm conditions, could be at the origin of these divergences (i.e. mixed diets, forage characteristics, animal-related factors). This review confirmed that farming practices may differently affect several quality traits of ruminant products. It also highlighted the uneven knowledge on the effect of feeding management depending on the PC: larger for milk than for meat and decreasing when moving from cattle to sheep and from sheep to goat.
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Affiliation(s)
- A Cabiddu
- Agris Sardegna, Loc. Bonassai 07040, Olmedo, Italy
| | - G Peratoner
- Laimburg Research Centre, Research Area Mountain Agriculture, Vadena/Pfatten, 39040 Ora/Auer (BZ), Italy
| | - B Valenti
- Department of Agricultural, Food and Environmental Sciences (DSA3), University of Perugia, Borgo XX Giugno, 74, 06121 Perugia, Italy
| | - V Monteils
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR1213 Herbivores, 63122 Saint-Genès-Champanelle, France
| | - B Martin
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR1213 Herbivores, 63122 Saint-Genès-Champanelle, France
| | - M Coppa
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR1213 Herbivores, 63122 Saint-Genès-Champanelle, France.
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Devincenzi T, Coppa M, Cabiddu A. Editorial: Ruminant Grazing Behavior: A Tool to Improve Product Quality and Ecosystem Services. Front Vet Sci 2021; 8:744200. [PMID: 34651034 PMCID: PMC8505999 DOI: 10.3389/fvets.2021.744200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 08/25/2021] [Indexed: 12/02/2022] Open
Affiliation(s)
- Thais Devincenzi
- Instituto Nacional de Investigación Agropecuaria (INIA), Programa Producción de Carne y Lana, Estación Experimental INIA Tacuarembó, Tacuarembó, Uruguay
| | - Mauro Coppa
- Independent Researcher at Université Clermont Auvergne, INRAE, VetAgro Sup, UMR1213 Herbivores, Saint-Genès-Champanelle, France
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Decandia M, Rassu S, Psiroukis V, Hadjigeorgiou I, Fountas S, Molle G, Acciaro M, Cabiddu A, Mameli M, Dimauro C, Giovanetti V. Evaluation of proper sensor position for classification of sheep behaviour through accelerometers. Small Rumin Res 2021. [DOI: 10.1016/j.smallrumres.2021.106445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Molle G, Cabiddu A, Decandia M, Sitzia M, Ibba I, Giovanetti V, Scanu G, Addis M, Caredda M. Can FT-Mid-Infrared Spectroscopy of Milk Samples Discriminate Different Dietary Regimens of Sheep Grazing With Restricted Access Time? Front Vet Sci 2021; 8:623823. [PMID: 33898541 PMCID: PMC8060481 DOI: 10.3389/fvets.2021.623823] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 02/15/2021] [Indexed: 11/18/2022] Open
Abstract
Milk obtained from sheep grazing natural pastures and some forage crops may be worth a plus value as compared to milk obtained from stall-fed sheep, due to their apparently higher content of beneficial fatty acids (FAs). Fourier transformed mid-infrared (FT-MIR) analysis of FA can help distinguish milk from different areas and diverse feeding systems. The objective was to discriminate milk from sheep and milk from dairy sheep rotationally grazing Italian ryegrass or berseem clover for 2, 4, or 6 h/day. To test this hypothesis, a data-mining study was undertaken using a database of 1,230 individual milk spectra. Data were elaborated by principal component analysis (PCA) and analyzed by linear discriminant analysis (LDA) with or without the use of genetic algorithm (GA) as a variable selection tool with the primary aim to discriminate grazed forages (grass vs. legume), access time (2, 4, or 6 h/day), grazing day (first vs. last grazing day during the 7-day grazing period), and the milking time (morning vs. afternoon milking). The best-fitting discriminant models of FT-MIR spectra were able to correctly predict 100% of the samples differing for the pasture forage, 91.9% of the samples differing for grazing day, and 97.1% of the samples regarding their milking time. The access time (AT) to pasture was correctly predicted by the model in 60.3% of the samples, and the classification ability was improved to 77.0% when considering only the 2 and 6 h/day classes.
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Affiliation(s)
| | | | | | | | - Ignazio Ibba
- Associazione Regionale Allevatori (ARA) della Sardegna, Laboratorio Analisi Latte, Nuraxinieddu, Oristano, Italy
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Molle G, Cabiddu A, Decandia M, Acciaro M, Scanu G, Addis M, Fiori M, Caredda M. A Note on the Tracing of Herbage Contribution to Grazing Sheep Diet Using Milk and Feces Biomarkers. Front Vet Sci 2021; 8:623784. [PMID: 33681328 PMCID: PMC7933569 DOI: 10.3389/fvets.2021.623784] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 01/12/2021] [Indexed: 11/13/2022] Open
Abstract
Milk from grazing ruminants is usually rich in beneficial components for human health, but distinguishing milks sourced from grazing is difficult, and this hinders the valuing of the grazing benefit. This study aimed at evaluating the ability of milk biomarkers (1) to trace milks sourced from sheep submitted to different access times (ATs) to pasture and (2) to estimate sheep herbage dry matter intake (HDMI, g DM ewe-1 d-1) and herbage percentage (HP, % DM) in sheep diet. Animal data derive from a published experiment in which six replicated groups of mid-lactation Sarda sheep had ATs of 2, 4, or 6 h d-1 to a ryegrass pasture. Sheep HDMI and HP of each group were measured on four dates in April 2013. Group milk was sampled, and milk fatty acids (FAs) and n-alkanes were determined by gas chromatography. The latter markers were also measured in feces samples bulked by group. The data (N = 24 records) were submitted to Linear Discriminant Analysis (LDA) aimed at distinguishing the AT to pasture based on biomarkers previously selected by Genetic Algorithms (GA). Partial Least Square Regression (PLSR) models were used to estimate HDMI and HP using biomarkers selected by GA. Based on one milk alkane and six milk FAs as biomarkers, estimates of the AT using GA-LDA were 95.8% accurate. The estimation of HDMI by GA-PLSR based on five milk FAs was moderately precise [explained variance = 75.2%; percentage of the residual mean square error of cross-validation over the mean value (RMSECV%) = 15.0%]. The estimation of HP by GA-PLSR based on 1 milk alkane and 10 FAs was precise (explained variance = 80.8%; RMSECV% = 7.4%). To conclude, these preliminary results suggest that milks sourced from sheep flocks with AT to pasture differentiated by 2 h in the range 2-6 h d-1 can be precisely discriminated using milk biomarkers. The contribution of herbage to sheep diet can also be precisely estimated.
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10
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Acciaro M, Decandia M, Sitzia M, Manca C, Giovanetti V, Cabiddu A, Addis M, Rassu SPG, Molle G, Dimauro C. Discriminant analysis as a tool to identify bovine and ovine meat produced from pasture or stall-fed animals. Italian Journal of Animal Science 2020. [DOI: 10.1080/1828051x.2020.1816507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Corrado Dimauro
- Dipartimento di Agraria, Università di Sassari, Sassari, Italy
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11
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Cabiddu A, Dattena M, Decandia M, Molle G, Lopreiato V, Minuti A, Trevisi E. The effect of parity number on the metabolism, inflammation, and oxidative status of dairy sheep during the transition period. J Dairy Sci 2020; 103:8564-8575. [PMID: 32684448 DOI: 10.3168/jds.2019-18114] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 12/23/2019] [Accepted: 05/04/2020] [Indexed: 11/19/2022]
Abstract
The objective of this study was to evaluate whether dairy sheep during the transition period are affected by their parity numbers with regard to (1) body weight (BW), body condition score (BCS), and production performance (milk yield and composition) and (2) metabolic, inflammation, and stress biomarkers. For this purpose, 30 Sarda dairy ewes [15 primiparous (PRP) and 15 multiparous (MUP) ewes] were recruited on d 90 of gestation. Each group was homogeneous according to age, BW, and BCS. Sampling was carried out at -60, -30, -7, 0, +30, and +60 d from lambing. The MUP ewes showed a higher BW (46.32 vs. 38.71 kg) and larger litter size (1.45 vs. 1.06 kg) but a lower BCS (2.47 vs. 2.70) than the PRP ewes. Furthermore, the MUP ewes had lower concentrations of glucose (3.49 vs. 4.27 mol/L), cholesterol (1.63 vs. 1.81 mmol/L), free fatty acids (0.47 vs. 0.62 mmol/L), and triglycerides (0.22 vs. 0.25 mmol/L) compared with PRP ewes. With regard to inflammation and oxidative stress parameters, the PRP group had higher haptoglobin (0.48 vs. 0.18 g/L) and paraoxonase (187.90 vs. 152.11 U/L) activity than the MUP group. Overall, the MUP ewes were characterized by greater milk production performance and greater feed intake, resulting in a better energy balance, than the PRP ewes. Interestingly, these findings highlighted a different metabolic and inflammatory response over the transition period between PRP and MUP ewes, with the latter displaying lower concentrations of inflammatory-related biomarkers.
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Affiliation(s)
- A Cabiddu
- Agris Sardegna, Agricultural Research Agency of Sardinia Loc., Bonassai, 07040, Olmedo, Sassari, Italy.
| | - M Dattena
- Agris Sardegna, Agricultural Research Agency of Sardinia Loc., Bonassai, 07040, Olmedo, Sassari, Italy
| | - M Decandia
- Agris Sardegna, Agricultural Research Agency of Sardinia Loc., Bonassai, 07040, Olmedo, Sassari, Italy
| | - G Molle
- Agris Sardegna, Agricultural Research Agency of Sardinia Loc., Bonassai, 07040, Olmedo, Sassari, Italy
| | - V Lopreiato
- Department of Animal Sciences, Food and Nutrition, Faculty of Agriculture, Food and Environmental Science, Università Cattolica del Sacro Cuore, via Emilia Parmense 84, 29122 Piacenza, Italy
| | - A Minuti
- Department of Animal Sciences, Food and Nutrition, Faculty of Agriculture, Food and Environmental Science, Università Cattolica del Sacro Cuore, via Emilia Parmense 84, 29122 Piacenza, Italy
| | - E Trevisi
- Department of Animal Sciences, Food and Nutrition, Faculty of Agriculture, Food and Environmental Science, Università Cattolica del Sacro Cuore, via Emilia Parmense 84, 29122 Piacenza, Italy
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Porcu C, Manca C, Cabiddu A, Dattena M, Gallus M, Pasciu V, Succu S, Naitana S, Berlinguer F, Molle G. Effects of short-term administration of a glucogenic mixture at mating on feed intake, metabolism, milk yield and reproductive performance of lactating dairy ewes. Anim Feed Sci Technol 2018. [DOI: 10.1016/j.anifeedsci.2018.06.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Giovanetti V, Decandia M, Molle G, Acciaro M, Mameli M, Cabiddu A, Cossu R, Serra M, Manca C, Rassu S, Dimauro C. Automatic classification system for grazing, ruminating and resting behaviour of dairy sheep using a tri-axial accelerometer. Livest Sci 2017. [DOI: 10.1016/j.livsci.2016.12.011] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Molle G, Cabiddu A, Decandia M. Re-visiting the nutrition of dairy sheep grazing Mediterranean pastures. Italian Journal of Animal Science 2016. [DOI: 10.4081/ijas.2007.1s.235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- G. Molle
- Dipartimento Scienze Entomologiche, Fitopatologiche, Microbiologiche Agrarie e Zootecniche, Istituto Zootecnico e Caseario per la Sardegna. Agenzia AGRIS Sardegna, Olmedo, Italy
| | - A. Cabiddu
- Dipartimento Scienze Entomologiche, Fitopatologiche, Microbiologiche Agrarie e Zootecniche, Istituto Zootecnico e Caseario per la Sardegna. Agenzia AGRIS Sardegna, Olmedo, Italy
| | - M. Decandia
- Dipartimento Scienze Entomologiche, Fitopatologiche, Microbiologiche Agrarie e Zootecniche, Istituto Zootecnico e Caseario per la Sardegna. Agenzia AGRIS Sardegna, Olmedo, Italy
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Addis M, Cabiddu A, Decandia M, Fiori M, Spada S, Bulleddu C, Cammelli R, Caria A, Lai V, Lutzoni G, Natale A, Oppia P, Pintus C, Spiga A, Piredda G, Porqueddu C, Molle G. A survey on the milk fatty acid composition of forty dairy sheep flocks in Sardinia. Italian Journal of Animal Science 2016. [DOI: 10.4081/ijas.2007.1s.532] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- M. Addis
- Istituto Zootecnico e Caseario per la Sardegna, Olmedo, Italy
| | - A. Cabiddu
- Istituto Zootecnico e Caseario per la Sardegna, Olmedo, Italy
| | - M. Decandia
- Istituto Zootecnico e Caseario per la Sardegna, Olmedo, Italy
| | - M. Fiori
- Istituto Zootecnico e Caseario per la Sardegna, Olmedo, Italy
| | - S. Spada
- Istituto Zootecnico e Caseario per la Sardegna, Olmedo, Italy
| | - C. Bulleddu
- Associazione Regionale Allevatori della Sardegna, Cagliari, Italy
| | - R. Cammelli
- Associazione Regionale Allevatori della Sardegna, Cagliari, Italy
| | - A. Caria
- Associazione Regionale Allevatori della Sardegna, Cagliari, Italy
| | - V. Lai
- Associazione Regionale Allevatori della Sardegna, Cagliari, Italy
| | - G. Lutzoni
- Associazione Regionale Allevatori della Sardegna, Cagliari, Italy
| | - A. Natale
- Associazione Regionale Allevatori della Sardegna, Cagliari, Italy
| | - P. Oppia
- Associazione Regionale Allevatori della Sardegna, Cagliari, Italy
| | - C. Pintus
- Associazione Regionale Allevatori della Sardegna, Cagliari, Italy
| | - A. Spiga
- Associazione Regionale Allevatori della Sardegna, Cagliari, Italy
| | - G. Piredda
- Istituto Zootecnico e Caseario per la Sardegna, Olmedo, Italy
| | - C. Porqueddu
- Istituto per il Sistema Produzione Animale in Ambiente Mediterraneo. Consiglio Nazionale delle Ricerche, Sassari, Italy
| | - G. Molle
- Istituto Zootecnico e Caseario per la Sardegna, Olmedo, Italy
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Cabiddu A, Addis M, Pinna G, Decandia M, Sitzia M, Pirisi A, Piredda G. Effect of different forage species supplemented with two carbohydrate sources on short and medium chain fatty acids in sheep milk. Italian Journal of Animal Science 2016. [DOI: 10.4081/ijas.2007.1s.542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- A. Cabiddu
- Istituto Zootecnico e Caseario per la Sardegna, Olmedo, Italy
| | - M. Addis
- Istituto Zootecnico e Caseario per la Sardegna, Olmedo, Italy
| | - G. Pinna
- Istituto Zootecnico e Caseario per la Sardegna, Olmedo, Italy
| | - M. Decandia
- Istituto Zootecnico e Caseario per la Sardegna, Olmedo, Italy
| | - M. Sitzia
- Istituto Zootecnico e Caseario per la Sardegna, Olmedo, Italy
| | - A. Pirisi
- Istituto Zootecnico e Caseario per la Sardegna, Olmedo, Italy
| | - G. Piredda
- Istituto Zootecnico e Caseario per la Sardegna, Olmedo, Italy
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Cabiddu A, Decandia M, Salis L, Scanu G, Fiori M, Addis M, Sitzia M, Molle G. Effect of species, cultivar and phenological stage of different forage legumes on herbage fatty acid composition. Italian Journal of Animal Science 2016. [DOI: 10.4081/ijas.2009.s2.277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Andrea Cabiddu
- AGRIS Sardegna, Dipartimento per la Ricerca nelle Produzioni Animali, Olmedo, Italy
| | - Mauro Decandia
- AGRIS Sardegna, Dipartimento per la Ricerca nelle Produzioni Animali, Olmedo, Italy
| | - Lorenzo Salis
- AGRIS Sardegna, Dipartimento per la Ricerca nelle Produzioni Animali, Olmedo, Italy
| | - Giuseppe Scanu
- AGRIS Sardegna, Dipartimento per la Ricerca nelle Produzioni Animali, Olmedo, Italy
| | - Myriam Fiori
- AGRIS Sardegna, Dipartimento per la Ricerca nelle Produzioni Animali, Olmedo, Italy
| | - Margherita Addis
- AGRIS Sardegna, Dipartimento per la Ricerca nelle Produzioni Animali, Olmedo, Italy
| | - Maria Sitzia
- AGRIS Sardegna, Dipartimento per la Ricerca nelle Produzioni Animali, Olmedo, Italy
| | - Giovanni Molle
- AGRIS Sardegna, Dipartimento per la Ricerca nelle Produzioni Animali, Olmedo, Italy
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Cabiddu A, Masoero F, Baumont R, Branca A, Decandia M, Molle G. Effect of corn and beet pulp based concentrate on ruminal parameters in wethers fed with fresh forage. Italian Journal of Animal Science 2016. [DOI: 10.4081/ijas.2008.141] [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] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Molle G, Decandia M, Giovanetti V, Manca C, Acciaro M, Epifani G, Salis L, Cabiddu A, Sitzia M, Cannas A. Effects of restricted time allocation to pasture on feeding behaviour, intake and milk production of dairy sheep rotationally grazing Italian ryegrass (Lolium multiflorum Lam) in spring. Anim Prod Sci 2014. [DOI: 10.1071/an14376] [Citation(s) in RCA: 11] [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 effects of restricted time allocation (2, 4 or 6 h/day) to pasture and grazing day (Day 1, initial; Day 4, intermediate; Day 7, final) on feeding behaviour, intake and performance were assessed in Sarda dairy ewes, rotationally grazing Italian ryegrass plots for 7 days, with 21 days of regrowth. A randomised block design with two replicates per access time was used with six groups of six ewes each. The ewes were supplemented daily with 400 g/head of a commercial concentrate at milking, 300 g/head of lupin after grazing and 700 g/head of ryegrass hay overnight. Pasture variables, feeding behaviour, herbage and supplement DM intake, and milk yield and composition were measured on 12 days (4 per target grazing day). Plot average data were analysed by a bifactorial model with interaction, which was not significant. Sward height and herbage mass decreased between Day 1 and Day 4 (P < 0.05). Leaf area index dropped from Day 1 to Day 7 (P < 0.05). Eating time, as proportion of access time, and intake rate were higher in 2 h/day groups than in the others (P < 0.05). Nevertheless, herbage and total intake were higher in 6 h/day than in 2 h/day groups, being 4 h/day groups intermediate (P < 0.05). Herbage intake decreased with grazing period (P < 0.05). Fat normalised milk yield was higher in 6 h/day groups than in the others (P < 0.05) and in Day 1 and Day 4 than in Day 7 (P < 0.05). To conclude, time restriction below 6 h/day and pasture depletion, in terms of herbage quality, constrained intake and performance of rotationally grazing dairy ewes.
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Cabiddu A, Trevisi E, Molle G, Lovotti G, Manca C, Epifani G, Dattena M. Effects of cooked molasses licking block supplementation pre- and post-partum on feed intake, suckling lamb performance, milk yield and milk quality in dairy sheep. Part 1. Anim Prod Sci 2014. [DOI: 10.1071/an14332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study tested the nutritional benefit of a supplement offered freely to dairy sheep over a period from 60 days before lambing to 60 days after lambing, at stall and grazing. Thirty Sarda dairy sheep on Day 90 of gestation, homogeneous for age, parity number, bodyweight (BW) and body condition score (BCS), were allocated to one of two groups: control (Ctr) or treated (Cry). Over 120 days, both groups received ryegrass hay and concentrate indoors. After weaning, the ewes also had access to pasture for 6 h/day. Throughout the experimental period, the Cry group had ad libitum access to a cooked molasses licking block. No significant differences were observed between the groups in forage, concentrate and total DM intake. During the experiment, the reduction in BCS in early lactation tended to be slower in the Cry than in Ctr group (Ptrend < 0.09), whereas no significant effects were seen on BW. Lamb performance tended to be improved by Cry in terms of liveweight of litter size per sheep (9.65 vs 8.22 kg for Cry and Ctr, respectively; P < 0.07), whereas no significant effects were observed on milk yield and composition, except for a trend for increased fat content in the Cry versus Ctr group (6.15% vs 5.95%, respectively; P < 0.08). Cry ewes had higher blood cholesterol concentrations than did Ctr ewes (1.96 vs 1.63 mmol/L; P < 0.01). Because there were no differences between feed intake at stall and the estimated total DM intake at stall and during grazing between the two groups, the better performance of the Cry group could be explained by an increase of feed use efficiency at the digestive and/or metabolic level.
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Cannas A, Cabiddu A, Bomboi G, Ligios S, Floris B, Molle G. Decreasing dietary NFC concentration during mid-lactation of dairy ewes: Does it result in higher milk production? Small Rumin Res 2013. [DOI: 10.1016/j.smallrumres.2012.09.009] [Citation(s) in RCA: 16] [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] [Indexed: 11/28/2022]
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Cabiddu A, Salis L, Tweed JKS, Molle G, Decandia M, Lee MRF. The influence of plant polyphenols on lipolysis and biohydrogenation in dried forages at different phenological stages: in vitro study. J Sci Food Agric 2010; 90:829-835. [PMID: 20355119 DOI: 10.1002/jsfa.3892] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
BACKGROUND It is known that forage legumes show a higher transfer efficiency of polyunsaturated fatty acids (PUFA) to ruminant dairy products in comparison with grasses. Legumes are usually characterised by moderate levels of plant secondary metabolites, which can have an effect on lipolysis and biohydrogenation in the rumen. An in vitro study was carried out to compare two species with different plant phenol compositions, Vicia sativa (VS, common vetch, cv. Jose) and Trifolium incarnatum (TI, crimson clover, cv. Viterbo) cut at the vegetative (Veg) and reproductive (Rep) stages, on lipolysis and PUFA biohydrogenation in the rumen. RESULTS The study showed that forage species and phenological stage affected the levels of bound phenols (BP) and tannic polyphenols (TP). VS was characterised by a higher level of TP than TI at both Veg and Rep stages, whereas BP levels were low in both forages. BP and TP had a negative effect on lipolysis and biohydrogenation, but TP showed a greater negative correlation than BP for both forages. CONCLUSION These results showed that lipolysis and biohydrogenation of PUFA could be affected by plant phenols, particularly TP.
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Affiliation(s)
- Andrea Cabiddu
- Dipartimento per la Ricerca nelle Produzioni Animali, AGRIS Sardegna, I-07040 Olmedo, Italy.
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Cabiddu A, Molle G, Decandia M, Spada S, Fiori M, Piredda G, Addis M. Responses to condensed tannins of flowering sulla (Hedysarum coronarium L.) grazed by dairy sheep. Livest Sci 2009. [DOI: 10.1016/j.livsci.2008.11.019] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Molle G, Decandia M, Giovanetti V, Cabiddu A, Fois N, Sitzia M. Responses to condensed tannins of flowering sulla (Hedysarum coronarium L.) grazed by dairy sheep. Livest Sci 2009. [DOI: 10.1016/j.livsci.2008.11.018] [Citation(s) in RCA: 30] [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: 11/16/2022]
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Decandia M, Cabiddu A, Sitzia M, Molle G. Polyethylene glycol influences feeding behaviour of dairy goats browsing on bushland with different herbage cover. Livest Sci 2008. [DOI: 10.1016/j.livsci.2007.10.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Cabiddu A, Addis M, Pinna G, Decandia M, Sitzia M, Piredda G, Pirisi A, Molle G. Effect of corn and beet pulp based concentrates on sheep milk and cheese fatty acid composition when fed Mediterranean fresh forages with particular reference to conjugated linoleic acid cis-9, trans-11. Anim Feed Sci Technol 2006. [DOI: 10.1016/j.anifeedsci.2006.06.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Cabiddu A, Addis M, Pinna G, Spada S, Fiori M, Sitzia M, Pirisi A, Piredda G, Molle G. The inclusion of a daisy plant (Chrysanthemum coronarium) in dairy sheep diet. 1: Effect on milk and cheese fatty acid composition with particular reference to C18:2 cis-9, trans-11. Livest Sci 2006. [DOI: 10.1016/j.livprodsci.2005.09.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Addis M, Cabiddu A, Pinna G, Decandia M, Piredda G, Pirisi A, Molle G. Milk and Cheese Fatty Acid Composition in Sheep Fed Mediterranean Forages with Reference to Conjugated Linoleic Acid cis-9,trans-11. J Dairy Sci 2005; 88:3443-54. [PMID: 16162517 DOI: 10.3168/jds.s0022-0302(05)73028-9] [Citation(s) in RCA: 127] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Two experiments were undertaken to evaluate the effect on milk and cheese fatty acid composition of feeding different fresh forages to dairy sheep both in winter (experiment 1, growing stage of the forages, early lactating ewes) and in spring (experiment 2, reproduction stage of the forages, midlactating ewes). Four forage species were compared: annual ryegrass (RY, Lolium rigidum Gaudin), sulla (SU, Hedysarum coronarium L.), burr medic (BM, Medicago polymorpha L.), and a daisy forb (CH, Chrysanthemum coronarium L.). The forages were cut twice daily and offered ad libitum to 4 replicate groups of Sarda dairy sheep (groups RY, SU, BM, and CH). The CH forage was particularly rich in linoleic acid in both periods, whereas BM and SU forages were rich in linolenic acid in winter and spring, respectively. Milk fatty acid composition was affected by the forage in both experiments. Milk conjugated linoleic acid and vaccenic acid contents were higher in CH and BM groups (winter) and CH group (spring) than in the other groups. No differences were observed when comparing fatty acid profile between milk, 1-d-old cheeses, and 60-d-old cheeses within experimental groups, suggesting that the fatty acid recovery rates during cheese making and ripening were not affected by the feeding regimens. After stepwise discriminant analyses of the pooled data, the milks and cheeses sourced in the different feeding regimens differed among them. Based on these results, we conclude that it is possible to manipulate the fatty acid profile of sheep dairy produce to maximize the content of beneficial fatty acids by the use of appropriate fresh forage-based regimens.
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Affiliation(s)
- M Addis
- Istituto Zootecnico e Caseario per la Sardegna, Loc. Bonassai, 07040, Italy.
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Cabiddu A, Decandia M, Addis M, Piredda G, Pirisi A, Molle G. Managing Mediterranean pastures in order to enhance the level of beneficial fatty acids in sheep milk. Small Rumin Res 2005. [DOI: 10.1016/j.smallrumres.2005.05.005] [Citation(s) in RCA: 111] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Landau S, Molle G, Fois N, Friedman S, Barkai D, Decandia M, Cabiddu A, Dvash L, Sitzia M. Safflower (Carthamus tinctorius L.) as a novel pasture species for dairy sheep in the Mediterranean conditions of Sardinia and Israel. Small Rumin Res 2005. [DOI: 10.1016/j.smallrumres.2005.05.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Landau S, Dvash L, Decandia M, Cabiddu A, Shapiro F, Molle G, Silanikove N. Determination of poly(ethylene glycol)-binding to browse foliage, as an assay of tannin, by near-infrared reflectance spectroscopy. J Agric Food Chem 2004; 52:638-642. [PMID: 14759161 DOI: 10.1021/jf0305581] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Nutritionists are interested in functional assays of tannins that do not require time-consuming and expensive extraction, such as the (14)C-labeled poly(ethylene glycol) (PEG)-binding (PEG-b) assay. This paper reports the application of near-infrared (NIR) spectroscopy to determine the percentage of PEG binding, in place of the (14)C-labeled PEG-b assay of tannin, in Mediterranean woodland vegetation. Calibration was done with 53 samples from 14 species and was validated on 25 samples from 10 species. PEG-b ranged between 1.4 and 20.7% in the samples. The calibration obtained by using the modified partial least-squares (MPLS) method, with all wavelengths in the 1100-2500 nm range combined, and the validation were reasonably linear (R (2) = 0.96 and 0.91, respectively). The accuracies, estimated from the standard errors of cross-validation and prediction, were +/-1.6 and +/-1.7% PEG-b, respectively. The NIRS-aided procedure proposed here can serve as an accurate, inexpensive, time-saving, and environment-friendly functional assay of tannin in Mediterranean browse.
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Affiliation(s)
- Serge Landau
- Institute of Field and Garden Crops, Department of Natural Resources, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan 50 250, Israel.
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