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Intramuscular fat in lamb muscle and the impact of selection for improved carcass lean meat yield

Published online by Cambridge University Press:  16 December 2014

F. Anderson ,
L. Pannier ,
D. W. Pethick  and
G. E. Gardner
F. Anderson*
Affiliation:
Australian Cooperative Research Centre for Sheep Industry Innovation, University of New England, Armidale, NSW 2351, Australia School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA 6150, Australia
L. Pannier
Affiliation:
Australian Cooperative Research Centre for Sheep Industry Innovation, University of New England, Armidale, NSW 2351, Australia School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA 6150, Australia
D. W. Pethick
Affiliation:
Australian Cooperative Research Centre for Sheep Industry Innovation, University of New England, Armidale, NSW 2351, Australia School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA 6150, Australia
G. E. Gardner
Affiliation:
Australian Cooperative Research Centre for Sheep Industry Innovation, University of New England, Armidale, NSW 2351, Australia School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA 6150, Australia
*
†E-mail: F.Anderson@murdoch.edu.au
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Abstract

Intramuscular fat percentage (IMF%) has been shown to have a positive influence on the eating quality of red meat. Selection of Australian lambs for increased lean tissue and reduced carcass fatness using Australian Sheep Breeding Values has been shown to decrease IMF% of the Muscularis longissimus lumborum. The impact this selection has on the IMF% of other muscle depots is unknown. This study examined IMF% in five different muscles from 400 lambs (M. longissimus lumborum, Muscularis semimembranosus, Muscularis semitendinosus, Muscularis supraspinatus, Muscularis infraspinatus). The sires of these lambs had a broad range in carcass breeding values for post-weaning weight, eye muscle depth and fat depth over the 12th rib (c-site fat depth). Results showed IMF% to be highest in the M. supraspinatus (4.87±0.1, P<0.01) and lowest in the M. semimembranosus (3.58±0.1, P<0.01). Hot carcass weight was positively associated with IMF% of all muscles. Selection for decreasing c-site fat depth reduced IMF% in the M. longissimus lumborum, M. semimembranosus and M. semitendinosus. Higher breeding values for post-weaning weight and eye muscle depth increased and decreased IMF%, respectively, but only in the lambs born as multiples and raised as singles. For each per cent increase in lean meat yield percentage (LMY%), there was a reduction in IMF% of 0.16 in all five muscles examined. Given the drive within the lamb industry to improve LMY%, our results indicate the importance of continued monitoring of IMF% throughout the different carcass regions, given its importance for eating quality.

Keywords

lambintramuscular fatbreeding valuelean meat yield
Type
Research Article
Information
animal , Volume 9 , Issue 6 , June 2015 , pp. 1081 - 1090
Copyright
© The Animal Consortium 2014 

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References

Anderson, F, Williams, A, Pethick, DW and Gardner, G (submitted). 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 (submitted).Google Scholar
Anderson, F, Williams, A, Pannier, L, Pethick, DW and Gardner, GE 2013. Australian sheep breeding values increase % carcass lean and redistribute lean tissue to the saddle region. In 59th International Congress of Meat Science and Technology (ed. M Serdaroglu, B Ozturk and T Akcan), pp. 1–4. Ege University, Food Engineering Development, Izmir, Turkey.Google Scholar
Banks, RG 2002. Enhancing the value of meat from wool sheep: is there a need for specialisation? International Journal of Wool Technology 50, 584–595.Google Scholar
Brackebrush, SA, McKeith, FK, Carr, TR and McLaren, DG 1991. Relationship between longissimus composition and the composition of other major muscles of the beef carcass. Journal of Animal Science 69, 631–640.CrossRefGoogle Scholar
Briand, M, Talmant, A, Briand, Y, Monin, G and Durand, R 1981. Metabolic types of muscle in the sheep: I. Myosin ATPase, glycolytic, and mitochondrial enzyme activities. European Journal of Applied Physiology and Occupational Physiology 46, 347–358.CrossRefGoogle ScholarPubMed
Brown, D, Huisman, A, Swan, A, Graser, H, Woolaston, R, Ball, A, Atkins, K and Banks, R 2007. Genetic evaluation for the Australian sheep industry. In Proceedings of the Seventeenth Association for Advancement of Animal Breeding and Genetics, 23rd–26th September, 2007, Armidale, NSW, Australia, pp. 187–194.Google Scholar
Butterfield, R 1988. New concepts of sheep growth. Griffin Press Ltd, Netley, South Australia, Australia.Google Scholar
Craigie, CR, Lambe, NR, Richardson, RI, Haresign, W, Maltin, CA, Rehfeldt, C, Roehe, R, Morris, ST and Bunger, L 2012. The effect of sex on some carcass and meat quality traits in Texel ewe and ram lambs. Animal Production Science 52, 601–607.CrossRefGoogle Scholar
Fogarty, NM, Banks, RG, van de Werf, JHJ, Ball, AJ and Gibson, JP 2007. The information nucleus – a new concept to enhance sheep industry genetic improvement. In Proceedings of the Seventeenth Association for Advancement of Animal Breeding and Genetics, 23–26 September, Armidale, NSW, Australia, pp. 29–32.Google Scholar
Gardner, GE, Hopkins, DL, Greenwood, PL, Cake, MA, Boyce, MD and Pethick, DW 2007. Sheep genotype, age and muscle type affect the expression of metabolic enzyme markers. Australian Journal of Experimental Agriculture 47, 1180–1189.CrossRefGoogle Scholar
Gardner, GE, Williams, A, Siddell, J, Ball, AJ, Mortimer, S, Jacob, RH, Pearce, KL, Hocking Edwards, JE, Rowe, JB and Pethick, DW 2010. Using Australian Sheep Breeding Values to increase lean meat yield percentage. Animal Production Science 50, 1098–1106.CrossRefGoogle Scholar
Greenwood, PL, Harden, S and Hopkins, DL 2007. Myofibre characteristics of ovine longissimus and semitendinosus muscles are influenced by sire breed, gender, rearing type, age and carcass weight. Australian Journal of Experimental Agriculture 47, 1137–1146.CrossRefGoogle Scholar
Hall, D, Kelf, T, Fogarty, N and Murray, P 2000. Opportunities for meat from lambs and goats in Australia. Asian-Australasian Journal of Animal Sciences 13, 91–92.Google Scholar
Harper, G and Pethick, D 2004. Obesity: does it matter? Asia Pacific Journal of Clinical Nutrition 13, S37.Google Scholar
Hocquette, J, Gondret, F, Baéza, E, Médale, F, Jurie, C and Pethick, D 2010. Intramuscular fat content in meat-producing animals: development, genetic and nutritional control, and identification of putative markers. Animal 4, 303–319.CrossRefGoogle ScholarPubMed
Hocquette, JF 2010. Endocrine and metabolic regulation of muscle growth and body composition in cattle. Animal 4, 1797–1809.CrossRefGoogle ScholarPubMed
Hocquette, J-F, Cassar-Malek, I, Jurie, C, Bauchart, D, Picard, B and Renand, G 2012. Relationships between muscle growth potential, intramuscular fat content and different indicators of muscle fibre types in young Charolais bulls. Animal Science Journal 83, 750–758.CrossRefGoogle ScholarPubMed
Hopkins, D, Hegarty, R, Walker, P and Pethick, D 2006. Relationship between animal age, intramuscular fat, cooking loss, pH, shear force and eating quality of aged meat from sheep. Australian Journal of Experimental Agriculture 46, 879–884.CrossRefGoogle Scholar
Hopkins, DL, Stanley, DF, Martin, LC, Toohey, ES and Gilmour, AR 2007. Genotype and age effects on sheep meat production 3. Meat quality. Australian Journal of Experimental Agriculture 47, 1155–1164.CrossRefGoogle Scholar
Huisman, AE and Brown, DJ 2008. Genetic parameters for bodyweight, wool, and disease resistance and reproduction traits in Merino sheep. 2. Genetic relationships between bodyweight traits and other traits. Australian Journal of Experimental Agriculture 48, 1186–1193.CrossRefGoogle Scholar
Laville, E, Bouix, J, Sayd, T and Bibé, B 2004. Effects of a quantitative trait locus for muscle hypertrophy from Belgian Texel sheep on carcass conformation and muscularity. Journal of Animal Science 82, 3128–3137.CrossRefGoogle ScholarPubMed
McPhee, MJ, Hopkins, DL and Pethick, DW 2008. Intramuscular fat levels in sheep muscle during growth. Australian Journal of Experimental Agriculture 48, 904–909.CrossRefGoogle Scholar
Pannier, L, Pethick, DW, Geesink, GH and Ball, AJ 2014a. Intramuscular fat in the longissimus muscle is reduced in lambs from sires selected for leanness. Meat Science 96, 1068–1075.CrossRefGoogle ScholarPubMed
Pannier, L, Pethick, DW, Boyce, MD, Ball, AJ, Jacob, RH and Gardner, GE 2014b. Associations of genetic and non-genetic factors with concentrations of iron and zinc in the longissimus muscle of lamb. Meat Science 96, 1111–1119.CrossRefGoogle ScholarPubMed
Pannier, L, Gardner, GE, Pearce, KL, McDonagh, M, Ball, AJ, Jacob, RH and Pethick, DW 2014c. Associations of sire estimated breeding values and objective meat quality measurements with sensory scores in Australian lamb. Meat Science 96, 1076–1087.CrossRefGoogle ScholarPubMed
Pearce, K, van de Ven, R, Mudford, C, Warner, R, Hocking-Edwards, J, Jacob, R, Pethick, D, Hopkins, D 2010. Case studies demonstrating the benefits on pH and temperature decline of optimising medium-voltage electrical stimulation of lamb carcasses. Animal Production Science 50, 1107–1114.CrossRefGoogle Scholar
Pethick, D, Banks, R, Hales, J and Ross, I 2006. Australian prime lamb – a vision for 2020. International Journal of Sheep and Wool Science 54, 194–201.Google Scholar
Picard, B, Lefaucheur, L, Berri, C and Duclos, MJ 2002. Muscle fibre ontogenesis in farm animal species. Reproduction Nutrition Development 42, 415–431.CrossRefGoogle ScholarPubMed
Suzuki, A 1995. Differences in distribution of myofiber types between the supraspinatus and infraspinatus muscles of sheep. Anatomical Record 242, 483–490.CrossRefGoogle ScholarPubMed
Thompson, JM 2004. The effects of marbling on flavour and juiciness scores of cooked beef, after adjusting to a constant tenderness. Australian Journal of Experimental Agriculture 44, 645–652.CrossRefGoogle Scholar
Warner, RD, Jacob, RH, Edwards, JEH, McDonagh, M, Pearce, K, Geesink, G, Kearney, G, Allingham, P, Hopkins, DL and Pethick, DW 2010. Quality of lamb meat from the Information Nucleus Flock. Animal Production Science 50, 1123–1134.CrossRefGoogle Scholar
Zhu, MJ, Ford, SP, Means, WJ, Hess, BW, Nathanielsz, PW and Du, M 2006. Maternal nutrient restriction affects properties of skeletal muscle in offspring. The Journal of Physiology 575, 241–250.CrossRefGoogle ScholarPubMed