Effect of selenium and iodine on growth performance and some carcass characteristics of meat goats
2009
Aghwan, Z. A. | Hilmi, M. | Sazili, A. Q. | Alimon. A. R.
Trace elements are minerals that in small quantities are essential for the normal health and function of humans and animals. Iodine is important in the synthesis of thyroid hormone that plays an important role in regulating growth. Selenium is important as antioxidant and promote health and immune status of animals. This study sought to determine the effect of supplementation of iodine and selenium at levels higher than the NRC requirement for growing goats on their growth performance and carcass characteristics. Twenty four male local crossbreed goat, 6-9 months of age and placed in individual pens, were randomly assigned to four dietary treatments namely, Treat C, control (60% guinea grass, 40% concentrate), Treat 2 (control + 0.6 mg/Kg DM selenium), Treat 3 (control + 0.6 mg iodine) and Diet 4 (0.6 mg selenium and 0.6 mg iodine/Kg DM), respectively. The concentrate contained 43% palm Kernel cake, 30% rice bran, 25% corn, 1% CaCO3, 0.5% NaCl, 0.5% mineral vitamins mix. At the end of the 100 day feeding trial, there were no significant differences in final weights among the treatments. However, the live-weights of goats fed treat 3 (26.3 Kg) and Treat 4 (26.7 Kg) appeared to be higher than those of the control (25.7 Kg)and Treat (25.7 Kg). There were no significant differences in the dressing percentages and not carcass weights. The iodine supplementation and iodine in combination with selenium may have a positive effect on the growth performance of meat goats.
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