کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5791720 | 1109620 | 2013 | 8 صفحه PDF | دانلود رایگان |
This study assessed the effect of breed and diet on carcass composition, particularly fat partitioning, and meat quality in young bulls. An experiment with forty young bulls from two phylogenetically distant Portuguese bovine breeds, Alentejana and Barrosã, fed two diets with different maize silage to concentrate ratios, but isoenergetic and isonitrogenous, was carried out until the animals reached 18 months of age. In the longissimus lumborum muscle, Barrosã bulls fed the low silage diet had the highest intramuscular fat (IMF) content. Bulls fed the low silage diet also had the highest IMF content in the semitendinosus muscle. Diet determined the proportions of total visceral fat and individual fat depots. Under these experimental conditions, it was shown that the genetic background is a major determinant of carcass composition and meat quality, and that the dietary differences studied had limited effect on carcass composition.
⺠Effect of breed and diet on carcass fat partitioning and meat quality was studied. ⺠Effect of breed and diet on IMF contents varied according to muscle. ⺠Strong relationship between IMF and most of the fat depots in Barrosã bulls. ⺠Genetic background strongly influenced carcass fat partitioning and meat quality. ⺠Diet determined the proportions of total visceral fat and individual fat depots.
Journal: Meat Science - Volume 93, Issue 3, March 2013, Pages 405-412