Effects of Dietary Riboflavin Supplemental Level on Growth Performance, Fur Quality, Blood Indices and Antioxidant Function of Growing Rex Rabbits

ZHENG Chen, LI Chunyan, SUI Xiaoyi, ZHAO Nan, LIU Gongyan, LI Fuchang

doi:10.3969/j.issn.1006-267x.2015.03.018

2015 , Vol. 27 >Issue 3: 804 - 810

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.03.018

Special Economic Animal Nutrition

Effects of Dietary Riboflavin Supplemental Level on Growth Performance, Fur Quality, Blood Indices and Antioxidant Function of Growing Rex Rabbits

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College of Animal Science and Technology, Shandong Agricultural University, Tai'an 271018, China

Received date: 2014-10-11

Online published: 2015-03-18

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Abstract

This experiment was conducted to study the effects of dietary riboflavin supplemental level on growth performance, fur quality, blood indices and antioxidant function of growing Rex rabbits aged from 3 to 5 months. A total of 160 three-month-old healthy Rex rabbits with similar body weight were randomly divided into 4 groups with 40 replicates per group and 1 rabbit per replicate. Rabbits in the control group were fed a basal diet, and the others in the experimental groups were fed the experimental diets supplemented with 3, 6 and 12 mg/kg riboflavin, respectively. The pre-test period lasted for 7 days, and the experimental period lasted for 53 days. The results showed as follows: dietary riboflavin supplemental levels had no significant effects on average daily gain, average daily feed intake, ratio of feed to gain, fur thickness and wool length (P>0.05), while it had significant effects on fur area and fur weight (P<0.05 or P<0.01). Dietary riboflavin supplemental levels had significant effects on serum cholesterol content (P<0.05), while it had no significant effects on the contents of total protein, albumin , triglyceride, urea nitrogen, high-density lipoprotein cholestorol (HDL-C) and low-density lipoprotein cholestorol in serum (P>0.05). The serum and liver glutathione peroxidase activity in 6 mg/kg group was significantly higher than that in control group (P<0.01). Dietary riboflavin supplemental levels had no significant effects on serum and liver total superoxide dismutase activity, malondialdehyde content and liver total antioxidant capability (P>0.05). In conclusion, dietary supplemented with 6 mg/kg riboflavin (dietary riboflavin measured content is 8.35 mg/kg) can improve fur quality and antioxidant function of growing Rex rabbits.

Key words： ribofavin; growing Rex rabbit; growth performance; fur quality; blood indices; antioxidant function

Cite this article

ZHENG Chen, LI Chunyan, SUI Xiaoyi, ZHAO Nan, LIU Gongyan, LI Fuchang . Effects of Dietary Riboflavin Supplemental Level on Growth Performance, Fur Quality, Blood Indices and Antioxidant Function of Growing Rex Rabbits[J]. Chinese Journal of Animal Nutrition, 2015 , 27(3) : 804 -810 . DOI: 10.3969/j.issn.1006-267x.2015.03.018

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