effect of chromium supplementation on performance and on carcass characteristics, mahabadi goat kids

Authors

علی امامی

دانش آموخته کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران مهدی گنج خانلو

استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران ابوالفضل زالی

دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران امیر اکبری افجانی

دانش آموخته کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه زنجان امین هژبری

abstract

the present study was carried out to determine the effects of supplementing chromium-methionine(cr-met) on performance and carcass traits in mahabadi goat kids. thirty-two male kids (averageinitial bw of 22 ± 2 kg, 4-5mo) were used in a completely randomized design of four treatments vis.:1) control (with no cr suppl.), 2) 500ug cr suppl., 3) 1000ug cr suppl.and 4) 1500ug cr suppl.as cr-met/animal/d. diets fed were the same and the experimental period 94 d. animals were kept inindividual pens of their own mangers. kids were weighed at 21 day intervals and slaughtered at theend of the trial. dry matter intake, average daily gain and feed conversion ratios were not affected bythe chromium supplementation. addition of cr decreased fat depth over the 12thrib(p

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Journal title:
علوم دامی ایران

جلد ۴۴، شماره ۱، صفحات ۹۷-۱۰۴

Keywords
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