Relationships among fat-tail measurements and carcass composition in fat-tailed Bakhtiari sheep

Zahedifar M., . and Nikkhah A., . and Edriss M. A., . and Zamani F., . and Kamalzadeh A., . (2004) Relationships among fat-tail measurements and carcass composition in fat-tailed Bakhtiari sheep. [Proceedings Paper]

A total of 1458 records collected on 54 Bakhtiari fat-tailed lambs were used to predict in vivo carcass composition from body weight and some fat-tail measurements. Lambs were slaughtered at 3 groups of live weight 45 52 and 60 Kg. Measurements included body weight upper and lower fat-tail depth upper and lower fat-tail width upper and lower fat-tail circumference fat-tail length and fat-tail gap length. After slaughter omental mesenteric tail and dissected fat in the carcass were separated and weighted. Total body fat TBF corresponds to the sum of these fat depots. The means of TBF and fat-tail weight in 3 slaughtered groups were 8.25 10.38 12.78 kg and 3.77 4.96 5.83 kg respectively and were highly correlated as well with all fat-tail measurements P0.0 1. The highest correlation;s r0.73 were observed between TBF and upper fat-tail circumference measures. The best accuracy was obtained in the prediction of tail fat and TBF from circumference of upper and lower fat-tail depth measure R20.79 P0.01. This study showed that body fat and lean could be predicted in vivo using simple fat-tail measurement in the Bakhtiari sheep.

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Abstract

A total of 1458 records collected on 54 Bakhtiari fat-tailed lambs were used to predict in vivo carcass composition from body weight and some fat-tail measurements. Lambs were slaughtered at 3 groups of live weight 45 52 and 60 Kg. Measurements included body weight upper and lower fat-tail depth upper and lower fat-tail width upper and lower fat-tail circumference fat-tail length and fat-tail gap length. After slaughter omental mesenteric tail and dissected fat in the carcass were separated and weighted. Total body fat TBF corresponds to the sum of these fat depots. The means of TBF and fat-tail weight in 3 slaughtered groups were 8.25 10.38 12.78 kg and 3.77 4.96 5.83 kg respectively and were highly correlated as well with all fat-tail measurements P0.0 1. The highest correlation;s r0.73 were observed between TBF and upper fat-tail circumference measures. The best accuracy was obtained in the prediction of tail fat and TBF from circumference of upper and lower fat-tail depth measure R20.79 P0.01. This study showed that body fat and lean could be predicted in vivo using simple fat-tail measurement in the Bakhtiari sheep.

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Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia HD9410.1 A111 2004 vol.3 Call Number
AGROVOC Term:	Carcases
AGROVOC Term:	Carcass composition
AGROVOC Term:	Lambs
AGROVOC Term:	Research
AGROVOC Term:	Body weight
AGROVOC Term:	Body fat
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:14
URI:	http://webagris.upm.edu.my/id/eprint/12031

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