The pattern of fat and lean muscle tissue deposition differs in the different pork primal cuts of female pigs during the finisher growth phase

D.N. D'Souza; D.W. Pethick; F.R. Dunshea; D. Suster; J.R. Pluske; B.P. Mullan

doi:10.1016/j.livprodsci.2004.04.005

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The pattern of fat and lean muscle tissue deposition differs in the different pork primal cuts of female pigs during the finisher growth phase

Journal article

Peer reviewed

The pattern of fat and lean muscle tissue deposition differs in the different pork primal cuts of female pigs during the finisher growth phase

D.N. D'Souza, D.W. Pethick, F.R. Dunshea, D. Suster, J.R. Pluske and B.P. Mullan

Livestock Production Science, Vol.91(1-2), pp.1-8

2004

DOI: https://doi.org/10.1016/j.livprodsci.2004.04.005

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Abstract

Eighty Large WhitexLandracexDuroc crossbred female pigs of similar age were used in this experiment to investigate the deposition of fat and lean muscle tissue in the different primal cuts and intramuscular (IM) fat levels (longissimus dorsi, biceps femoris and supraspinatis) in female finisher pigs from 16 to 25 weeks of age. The pigs were group housed (10 pigs/pen) and randomly allocated to 1 of 10 pens. The pigs in each pen were allocated a slaughter age over a 10-week period starting from Week 16 to Week 25. The liveweight, carcass weight, and backfat depth at the P2 site significantly increased (P<0.001) from 16 to 25 weeks of age. The weight of the carcass and primal cuts, and the fat and lean muscle content of the half carcass and the shoulder, loin, belly and ham primal cuts increased significantly (P<0.001) from 16 to 25 weeks of age. There was no significant difference (P>0.05) in IM fat levels in the loin (m. longissimus) and the shoulder (m. suprasinatis) muscle. The IM fat levels varied significantly (P=0.003) in the ham (m. biceps femoris) muscle with the highest IM fat levels in pigs of 21 weeks of age and lowest in pigs at 17 weeks of age. The results indicate that the fat to lean muscle ratio increased significantly for the carcass (P=0.004), shoulder (P<0.001), loin (P=0.001), belly (P<0.001) and the ham (P=0.026) primal cuts from 16 to 25 weeks of age. Animal age was significantly correlated (P<0.001) with the fat content of the carcass and primal cuts. The strongest correlation between age and fat content was for the belly primal cut (r 2=0.603).

Details

Title: The pattern of fat and lean muscle tissue deposition differs in the different pork primal cuts of female pigs during the finisher growth phase
Authors/Creators: D.N. D'Souza (Author/Creator) - Government of Western Australia
D.W. Pethick (Author/Creator) - Murdoch University
F.R. Dunshea (Author/Creator) - Victorian Institute of Animal Science, DPI, Werribee, Victoria, 3030
D. Suster (Author/Creator) - Victorian Institute of Animal Science, DPI, Werribee, Victoria, 3030
J.R. Pluske (Author/Creator) - Murdoch University
B.P. Mullan (Author/Creator) - Government of Western Australia
Publication Details: Livestock Production Science, Vol.91(1-2), pp.1-8
Publisher: Elsevier BV
Identifiers: 991005546342307891
Murdoch Affiliation: School of Veterinary and Biomedical Sciences
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.51 Dairy & Animal Sciences; 3.51.206 Meat Quality
Web Of Science research areas: Agriculture, Dairy & Animal Science
ESI research areas: Plant & Animal Science