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Asian-Australas J Anim Sci > Volume 8(6); 1995 > Article
Ruminant Nutrition and Forage Utilization
Asian-Australasian Journal of Animal Sciences 1995;8(6): 611-616.
DOI: https://doi.org/10.5713/ajas.1995.611    Published online December 1, 1995.
Growth and composition of the Omani Dhofari cattle 1. Body weight growth and carcass composition
O. Mahgoub, F. H. Olvey, D. C. Jeffrey
Abstract
A study was conducted which demonstrated that Dhofari cattle responded well to intensive management systems in terms of growth rates and carcass yields. Twenty-four Omani Dhofari bulls and steers(12 of each) were reared from brith until slaughter at 110, 160 and 210 kg at 154 and 164; 219 and 233; 273 and 310 days of age, respectively. Respective mean pre and post-weaning daily body weight gains for bulls and steers were 581 and 530; 796 and 706 g averaging 645 and 596 g over 36 weeks. At 210 kg, the heaviest weight of the study, dressing-out percentage(DO) was 54.5 and 56.9 yielding carcasses of 115.9 and 118.5 kg which contained 60.4 and 61.5% muscle; 11.6 and 11.4% bone and 24.5 and 22.9% fat for bulls and steers, respectively. Proportion of bone in the carcass decreased, that of fat increased, whereas that of muscle remained unchanged between slaughter weights of 110 to 210 kg. That resulted in increased muscle : bone and decreased muscle : fat ratios. At 160 kg body weight, bulls had less fat and more muscle and bone than steers but there were no sex differences in carcass composition at 210 kg slaughter weight.
Keywords: Omani Dhofari cattle; Body Weight Growth; Body Composition; Non-carcass Components


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