Hayvan Bilimi ve Ürünleri Dergisi

Yazarlar: Esra DUMAN, Zafer ULUTAŞ

Konular:Mühendislik, Ziraat

Anahtar Kelimeler:Karayaka,Lamb,Musculus longissimus dorsi,Ultrasound,Carcass measurements

Özet: This study was conducted on Karayaka lambs to investigate the relationship among pre- and post-slaughter measurements of Musculus longissimus dorsi (MLD) muscle characteristics, live body weight and carcass weight. After determining pre-slaughter live weight of the lambs, the depth, area and back fat thickness of MLD muscle between the 12th and 13th ribs were determined by ultrasound. After the slaughter, the hot carcass weight of all the lambs was determined and then the MLD muscle depth and back fat thickness were measured with the help of digital caliper between the 12th and 13th ribs, and the area was measured with a planimeter. The highest correlation coefficient was found between ultrasound MLD muscle depth and real MLD muscle depth (r = 0.993; P<0.01). The lowest correlation coefficient was determined between ultrasound MLD muscle depth and real MLD muscle area (r = 0.414; P<0.05). In addition, all correlation coefficients were statistically significant (P<0,05) except correlation coefficients between ultrasound MLD muscle depth and real back fat thickness, ultrasound MLD muscle area and real MLD muscle depth, real back fat thickness and real MLD muscle depth (P>0.05). In conclusion, it can be said that the carcass composition of Karayaka lambs can be estimated before slaughter.

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