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Khaldari M, Ghiasi H. Fatty acids composition and health indices in different fat and muscle locations of lambs from crossbreeding between Lori-Bakhtiari and Romanov sheep breeds. Small Rumin Res 2022. [DOI: 10.1016/j.smallrumres.2022.106786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Grochowska E, Lisiak D, Akram MZ, Adeniyi OO, Lühken G, Borys B. Association of a polymorphism in exon 3 of the IGF1R gene with growth, body size, slaughter and meat quality traits in Colored Polish Merino sheep. Meat Sci 2020; 172:108314. [PMID: 32987303 DOI: 10.1016/j.meatsci.2020.108314] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 09/01/2020] [Accepted: 09/14/2020] [Indexed: 02/07/2023]
Abstract
This study aimed to genotype the polymorphism (c.654G > A) in the exon 3 of the insulin-like growth factor 1 receptor gene (IGF1R) and to analyze its association with growth, body size, slaughter and meat quality traits in Colored Polish Merino sheep. In total, 67 traits were analyzed. The IGF1R polymorphism was genotyped using the polymerase chain reaction single-strand conformation polymorphism (PCR-SSCP) method. The MIXED procedure of the SAS software was used to assess the genotypic effects of the polymorphism (c.654G > A) on production traits of interest. The IGF1R c.654G > A genotypes were found to have a significant effect on the average daily gain between the 56th and 78th day of life, cold carcass, leg part, leg cut, fore shank, and kidney weights, as well as eye of loin depth, intramuscular fat content, and water-holding capacity of meat. The results suggest that the studied polymorphism may provide useful information for marker-assisted selection for increased meat performance in Colored Polish Merino sheep.
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Affiliation(s)
- E Grochowska
- Department of Animal Biotechnology and Genetics, UTP University of Science and Technology, Mazowiecka 28 St, 85-084 Bydgoszcz, Poland.
| | - D Lisiak
- Department of Meat and Fat Technology, Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology, Rakowiecka 36 St., 02-532 Warsaw, Poland
| | - M Z Akram
- Department of Animal Production and Technologies, Niğde Ömer Halisdemir University, 51240 Niğde, Turkey
| | - O O Adeniyi
- Institute of Animal Breeding and Genetics, Justus-Liebig University, Ludwigstrasse 21, 35390 Giessen, Germany
| | - G Lühken
- Institute of Animal Breeding and Genetics, Justus-Liebig University, Ludwigstrasse 21, 35390 Giessen, Germany
| | - B Borys
- National Research Institute of Animal Production, Experimental Station Kołuda Wielka, Parkowa 1 St., 88-160 Janikowo, Poland
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Lambe NR, Clelland N, Draper J, Smith EM, Yates J, Bunger L. Prediction of intramuscular fat in lamb by visible and near-infrared spectroscopy in an abattoir environment. Meat Sci 2020; 171:108286. [PMID: 32871540 DOI: 10.1016/j.meatsci.2020.108286] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 08/19/2020] [Accepted: 08/19/2020] [Indexed: 11/29/2022]
Abstract
The study used visible and near-infrared spectroscopy (Vis-NIR) in a large commercial processing plant, to test a system for meat quality (intramuscular fat; IMF) data collection within a supply chain for UK lamb meat. Crossbred Texel x Scotch Mule lambs (n = 220), finished on grass on 4 farms and slaughtered across 2 months, were processed through the abattoir and cutting plant and recorded using electronic identification. Vis-NIR scanning of the cut surface of the M. longissimus lumborum produced spectral data that predicted laboratory-measured IMF% with moderate accuracy (R2 0.38-0.48). Validation of the Vis-NIR prediction equations on an independent sample of 30 lambs slaughtered later in the season, provided similar accuracy of IMF prediction (R2 0.54). Values of IMF from four different laboratory tests were highly correlated with each other (r 0.82-0.95) and with Vis-NIR predicted IMF (r 0.66-0.75). Results suggest scope to collect lamb loin IMF data from a commercial UK abattoir, to sort cuts for different customers or to feed back to breeding programmes to improve meat quality.
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Affiliation(s)
- N R Lambe
- SRUC Hill and Mountain Research Centre, Kirkton farm, Crianlarich, West Perthshire, Scotland FK20 8RU, UK.
| | - N Clelland
- SRUC, JF Niven Building, Auchincruive, by Ayr, KA6 5HW, UK
| | - J Draper
- ABP, Birmingham Business Park, Birmingham B37 7YB, UK
| | - E M Smith
- The Texel Sheep Society, Stoneleigh Park, Kenilworth, Warwickshire CV8 2LG, UK
| | - J Yates
- The Texel Sheep Society, Stoneleigh Park, Kenilworth, Warwickshire CV8 2LG, UK
| | - L Bunger
- Animal Genetics Consultancy, Edinburgh, Scotland, UK
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Abstract
The main goal of this chapter was to review the state of the art in the recent advances in sheep and goat meat products research. Research and innovation have been playing an important role in sheep and goat meat production and meat processing as well as food safety. Special emphasis will be placed on the imaging and spectroscopic methods for predicting body composition, carcass and meat quality. The physicochemical and sensory quality as well as food safety will be referenced to the new sheep and goat meat products. Finally, the future trends in sheep and goat meat products research will be pointed out.
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Lambe NR, McLean KA, Gordon J, Evans D, Clelland N, Bunger L. Prediction of intramuscular fat content using CT scanning of packaged lamb cuts and relationships with meat eating quality. Meat Sci 2016; 123:112-119. [PMID: 27701028 DOI: 10.1016/j.meatsci.2016.09.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 08/25/2016] [Accepted: 09/18/2016] [Indexed: 11/25/2022]
Abstract
Novel, multi-object X-ray computed tomography (CT) methodologies can individually analyse vacuum-packed meat samples scanned in batches of three or more, saving money and time compared to scanning live animals. If intramuscular fat (IMF), as a proxy for meat quality, can be predicted with similar accuracies as in live lambs, this method could be used to grade on quality, or to inform breeding programmes. Lamb loin cuts from commercial carcasses (n=303), varying in fat and conformation grade, were vacuum-packed and CT scanned, then tested for meat quality traits and by a trained taste panel. Tissue density values measured by CT, alongside carcass and loin weights, predicted IMF with moderate accuracy (R2 0.36), but did not accurately predict shear force or sensory traits. Juiciness and flavour increased linearly with IMF, whilst texture and overall liking increased to an optimum between 4 and 5% IMF. Samples predicted by CT as having >3% IMF scored significantly higher for sensory traits, than those predicted as <3% IMF.
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Affiliation(s)
- N R Lambe
- Animal and Veterinary Science Group, Scotland's Rural College, Roslin Institute Building, Easter Bush, Midlothian EH25 9RG, Scotland, United Kingdom.
| | - K A McLean
- Animal and Veterinary Science Group, Scotland's Rural College, Roslin Institute Building, Easter Bush, Midlothian EH25 9RG, Scotland, United Kingdom
| | - J Gordon
- Animal and Veterinary Science Group, Scotland's Rural College, Roslin Institute Building, Easter Bush, Midlothian EH25 9RG, Scotland, United Kingdom
| | - D Evans
- Wm Morrisons Supermarkets PLC, Hilmore House, Gain Lane, Bradford, BD3 7DL, United Kingdom
| | - N Clelland
- Animal and Veterinary Science Group, Scotland's Rural College, Roslin Institute Building, Easter Bush, Midlothian EH25 9RG, Scotland, United Kingdom
| | - L Bunger
- Animal and Veterinary Science Group, Scotland's Rural College, Roslin Institute Building, Easter Bush, Midlothian EH25 9RG, Scotland, United Kingdom
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Valentin S, Yeates TD, Licka T, Elliott J. In vivo MRI features of spinal muscles in the ovine model. J Orthop Translat 2016; 6:1-9. [PMID: 29392107 PMCID: PMC5790160 DOI: 10.1016/j.jot.2015.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Background Muscle fatty infiltration (MFI) has been identified in patients with spinal pain using magnetic resonance imaging (MRI). Even though sheep are a commonly used animal model for the human spine, comparative sheep MFI data from MRI is not available. Determining MFI in sheep spinal muscles using acquisition protocols commonly used in man will identify the applicability of this approach in future sheep model studies, such that the effects of spinal interventions on muscle can be assessed prior to their use in a human (clinical) population. Objective To quantify ovine lumbar spine MFI using three-dimensional two-point Dixon and T1-weighted sequences. Methods T1-weighted and Dixon lumbar spine axial sequences were collected in 14 healthy Austrian mountain sheep using a 1.5-T MRI. At each vertebrae, the region of interest of psoas major and minor (PS), multifidus (M), and longissimus (L) were identified. To determine MFI from the T1-weighted images, the mean pixel intensity (MPI) was calculated as a percentage of subcutaneous or intermuscular fat. For the Dixon images, fat sequence MPI was calculated as a percentage of the summed fat and water sequence MPIs. Spinal degeneration was graded and correlated to MFI. Dixon MFI was compared to T1-weighted MFI obtained from subcutaneous and intermuscular fat. Results For every muscle, T1-weighted MFI calculated using subcutaneous fat scored significantly lower than Dixon MFI and T1-weighted MFI calculated using intermuscular fat (p < 0.001). There were no significant MFI differences between T1-weighted images calculated using intermuscular fat and Dixon images for M and L (p > 0.05), although significant differences were found for PS. Conclusion In sheep, Dixon sequences provide an acceptable comparison to T1-weighted sequences for lumbar extensor MFI based on intermuscular fat. However, compared to the human literature, ovine lumbar musculature contains greater MFI, making interspecies comparisons more complex.
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Affiliation(s)
- Stephanie Valentin
- Movement Science Group Vienna, Equine Clinic, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Tobey DeMott Yeates
- Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Theresia Licka
- Movement Science Group Vienna, Equine Clinic, University of Veterinary Medicine Vienna, Vienna, Austria.,Large Animal Hospital, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Roslin, Scotland, UK
| | - James Elliott
- Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.,School of Health and Rehabilitation Sciences, The University of Queensland, Queensland, Australia
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De Lima Jùnior DM, de Carvalho FF, Da Silva FJ, do N Rangel AH, Novaes LP, Difante G. Intrinsic factors affecting sheep meat quality: a review. REV COLOMB CIENC PEC 2016. [DOI: 10.17533/udea.rccp.v29n1a01] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Ablikim B, Liu Y, Kerim A, Shen P, Abdurerim P, Zhou GH. Effects of breed, muscle type, and frozen storage on physico-chemical characteristics of lamb meat and its relationship with tenderness. CYTA - JOURNAL OF FOOD 2015. [DOI: 10.1080/19476337.2015.1054885] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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The correlation of intramuscular fat content between muscles of the lamb carcass and the use of computed tomography to predict intramuscular fat percentage in lambs. Animal 2015; 9:1239-49. [DOI: 10.1017/s175173111500049x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Knight MI, Daetwyler HD, Hayes BJ, Hayden MJ, Ball AJ, Pethick DW, McDonagh MB. An independent validation association study of carcass quality, shear force, intramuscular fat percentage and omega-3 polyunsaturated fatty acid content with gene markers in Australian lamb. Meat Sci 2013; 96:1025-33. [PMID: 23948658 DOI: 10.1016/j.meatsci.2013.07.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 05/17/2013] [Accepted: 07/10/2013] [Indexed: 11/29/2022]
Abstract
Previous association studies revealed several single nucleotide polymorphisms (SNPs) that explained the observed phenotypic variation for meat tenderness and long-chain omega-3 polyunsaturated fatty acid (PUFA) content of Australian lamb. To confirm the validity of these associated SNPs at predicting meat tenderness and omega-3 PUFA content, an independent validation study was designed. The OvineSNP50 genotypes of these animals were used to impute the 192 SNP Meat Quality Research (MQR) panel genotypes on nearly 6200 animals from the Cooperative Research Centre for Sheep Industry Innovation Information Nucleus Flock and Sheep Genomics Falkiner Memorial Field Station flock. Association analysis revealed numerous SNP from the 192 SNP MQR panel that were associated with carcass quality - fat depth at the C-site and eye muscle depth; shear force at day 1 and day 5 after slaughter (SF1 and SF5); and omega-3 PUFA content at P<0.01. However, 1 SNP was independently validated for SF5 (i.e. CAST_101781475). The magnitude of the effect of each significant SNP and the relative allele frequencies across Merino-, Maternal- and Terminal-sired progeny was determined. The independently validated SNP for SF5 and the associated SNP with omega-3 PUFA content will accelerate efforts to improve these phenotypic traits in Australian lamb.
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Affiliation(s)
- Matthew I Knight
- Cooperative Research Centre for Sheep Industry Innovation, CJ Hawkins Homestead Building, University of New England, Armidale, NSW, 2351, Australia; Biosciences Research Division, Department of Primary Industries, AgriBio Building, 5 Ring Road, Bundoora, Vic, 3083, Australia; Future Farming Systems Research Division, Department of Primary Industries, 915 Mt Napier Road, Hamilton, Vic, 3300, Australia.
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