ORIGINAL ARTICLES Hot Climate Effects and Their Amelioration on Growth Performance, Carcass Traits, Blood Constituents and Picture of Growing Kids

U Abdel-Monem, U Abdel-Monem, Huda Qar, M Kandeil
2013 Journal of Applied Sciences Research   unpublished
The present work was performed to study the effect of chromium piclonate and ⁄ or ascorbic acid supplementation on the performance of growing kids during hot summer season (33.6 C o and 74.2% RH). A total number of twenty four weaned commercial kids were randomly distributed into four treatment groups each of 6 nearly of similar initial body weight. Kids of first group were fed the basal diet and kept as control (0.0 supplementation), while kids of the other three groups were fed diets
more » ... fed diets supplemented with 75 mg chromium piclonate / kg diet, 800 mg ascorbic acid / kg diet and 75 mg chromium piclonate + 800 mg ascorbic acid / kg diet, respectively. The final live body weight and daily body gain increased significantly (P < 0.05 or 0.01) during all the experimental periods for Kids fed diets supplemented with chromium piclonate, ascorbic acid and chromium piclonate + ascorbic acid. However, the supplementation of chromium piclonate + ascorbic acid seemed to be the best significant performance. The daily feed intake, feed conversion, water ⁄ feed intake ratio, water ⁄ daily gain ratio increased significantly (P < 0.05 or 0.01) during the experimental periods for Kids fed diets supplemented with chromium piclonate, ascorbic acid and chromium piclonate + ascorbic acid. Water intake, rectum temperature and respiration rate were not significantly affected by previous tratments. The best margin was obtained in group fed on the diet supplemented with chromium piclonate + ascorbic acid. All carcass traits increased insignificantly due to dietary chromium piclonate and ⁄ or ascorbic acid supplementation. Serum total proteins and ALT increased significantly (P < 0.05), while the cholesterol level and triglycerides decreased significantly (P<0.05) in Kids treated with chromium piclonate and ⁄ or ascorbic acid compared with kids of control group under summer heat stress conditions. Serum albumin, globulin, urea-N, creatinine, AST, WBCs, RBCs MCV, MCH and Hb content were insignificantly affected by chromium piclonate and ⁄ or ascorbic acid supplementation to the kids diets. Finally, it could be concluded that supplementation of 75 mg chromium piclonate + 800 mg ascorbic acid / kg diet to the kid diets is necessary to improve the productivity , under the summer conditions.
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