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Asian Journal of Animal and Veterinary Advances
Year: 2009  |  Volume: 4  |  Issue: 3  |  Page No.: 139 - 147

Effects of Dietary Ascorbic Acid Supplementation on Growth Performance, Carcass, Bone Quality and Blood Parameters in Broilers During Natural Summer Temperature

Y. Konca, F. Kirkpinar, S. Mert and S. Yurtseven    

Abstract: This experiment was conducted to determine dietary supplementation of ascorbic acid (ASA) on the performance, carcass, bone traits and, some serum indices of broilers. A total of 180 day-old chicks were distributed into 3 treatment groups with 6 replicate containing 10 chicks each. The experimental diets were: (1) control, no dietary ASA supplementation (ASA0), (2) dietary ASA supplementation 150 mg kg-1 (ASA150) of diet and (3) 300 mg kg-1 of diet (ASA300). The experiment was lasted up to 42 days of age. Dietary ASA did not affect body weight and gain and feed conversion ratio but quadratically changed daily feed intake of broilers at 21-42 and 0-42 days of age (p<0.05). The carcass and parts yields, dry matter, crude protein and pH of meat and bone traits were not affected (p>0.05) but crude fat and thigh meat colour were linearly changed (p<0.05) by the dietary supplement. Dietary ASA supplementation quadratically changed the serum alanine aminotransferase and linearly decreased aspartate amino transferase (p<0.05) but did not affect other serum constituents. To conclude, dietary ASA supplementation have some beneficial effects on broiler meat composition and colour and serum AST and ALT levels during natural summer temperature.

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