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Effect of Dietary Riboflavin(Vitamin B2)Levels on Growth Performance, Antioxidant Capacity and Hormone Secretion of Peking Ducks from 1 to 21 Days of Age

TANG Jing,XIE Ming,HOU Shui-sheng*,HUANG Wei,WEN Zhi-guo,ZHU Yong-wen(Institute of Animal Science,Chinese Academy of Agricultural Sciences,Beijing 100193,China)  
This experiment was conducted to evaluate the effects of dietary riboflavin levels on growth performance,antioxidant capacity and hormone secretion of Peking ducks from 1 to 21 days of age.Using a one-factor completely randomize design,a total of 512 one-day-old male Peking ducks were randomly divided into 8 groups with 8 replicates in each group and 8 ducks in each replicate.Eight groups were fed eight dietary riboflavin levels(1.69,2.39,3.09,3.79,4.49,5.19,8.69,15.69 mg·kg-1) diet,respectively.The growth performance were determined.The results showed that dietary riboflavin levels significant affected average daily weight gain,average daily feed intake and feed/gain(P0.05);dietary riboflavin levels significant affected MDA and SOD in plasma and liver(P0.05);dietary riboflavin levels significant affected plasma T3 and GH content(P0.05).Riboflavin was essential for growth of Peking duck from 1 to 21 days of age.
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