effect of two fattening systems on feedlot performance and carcass characteristics of fars natvie kids in different ages
نویسندگان
چکیده
effect of two fattening systems were studied on feedlot performance and carcass characteristics of using of 66 fars native male kids in different ages. six kids were slaughtered at the first day of experiment and sixty kids were divided into two groups. the first group were kept in feedlot in individual pens and the second group grazed on rangeland, and after 3 months, were kept in feedlot in individual pens. the fattening period for first and second groups were 9 and 6 months respectively. eight kids from each system were slaughtered randomly at the 6, 9 and 12 months of age, for recording carcass characteristics. live body weights in each age class were different (p0.05). carcass fat deposited percentages at 6 months of age were different (p0.05). live body weights, daily weight gains, feed conversion ratios, dressing percentages, carcass lean, fat deposited and bone percentages in each age were different (p
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عنوان ژورنال:
علوم دامی ایرانجلد ۴۲، شماره ۲، صفحات ۱۰۷-۱۱۴
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