TY - JOUR ID - 32157 TI - Effect of Chromium Supplementation on Performance and on Carcass Characteristics, Mahabadi Goat Kids JO - Iranian Journal of animal Science JA - IJAS LA - en SN - 2008-4773 AU - EMAMI, Ali AU - GANJ KHANLOU, Mehdi AU - ZALI, Abolfazl AU - AKBARI AFJANI, Amir AU - HOZHBARI, Amin AD - Postgraduate Student, Animal Nutrition, Dept AD - Assistant, Dept: of Animal Sciece, University of Tehran AD - Associate Professor Dept: of Animal Sciece, University of Tehran AD - Postgradute Student, Dept of Animal Science, College of Agriculture, University of Zanjan AD - Graduate Student, Dept: of Animal Sciece, University of Tehran Y1 - 2013 PY - 2013 VL - 44 IS - 1 SP - 97 EP - 104 KW - back fat KW - feed conversion ratio KW - chromium-methionine KW - Carcass characteristics DO - 10.22059/ijas.2013.32157 N2 - 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<0.05), but didnot affect the, dressing percentage, eye muscle area, carcass length, liver and kidney weight,abdominal and kidney fat.The 1500ug/d level of Cr increased heart weight(P=0/04). Percentages orweights of: ribs, dissected muscle, fat and bone, and percentages of muscle crude protein, etherextract, moisture and ash contents were not affected by Cr supplementation either. These resultsindicate that supplementation of goat kid diet with Cr-Met did not affect carcass traits and growthperformance but decreased back fat thickness while increasing heart weight. UR - https://ijas.ut.ac.ir/article_32157.html L1 - https://ijas.ut.ac.ir/article_32157_4efdb6ee379325cfb3a9b51498baa43b.pdf ER -