Short Communications

Effects of Dietary Methionine Level on Nutrient Digestibility, Nitrogen Metabolism and Serum Biochemical Parameters of Female Blue Foxes in Prepare Breeding Period

  • GUO Jungang ,
  • ZHANG Tietao ,
  • WU Xuezhuang ,
  • LIU Zhi ,
  • CUI Hu ,
  • GAO Xiuhua ,
  • YANG Fuhe ,
  • XING Xiumei
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  • 1. Institute of Feed Research, Chinese Academy of Agriculture Sciences, Beijing 100081, China;
    2. Stake Key Laboratory of Special Animal Molecular Biology, Institute of Economic Animal and Plant Science, Chinese Academy of Agriculture Sciences, Changchun 130112, China

Received date: 2015-03-10

  Online published: 2015-09-12

Abstract

This experiment was conducted to study the effects of dietary methionine level on nutrient digestibility, nitrogen metabolism and serum biochemical parameters of female blue foxes in prepare breeding period. One hundred and fifty healthy female blue foxes were randomly assigned into 5 groups with 30 replicates per group and 1 fox per replicate. The blue foxes in groups Ⅰ to Ⅴ were fed basal diet supplemented with 0, 0.26%, 0.52%, 0.78% and 1.04% methionine, respectively. The pre-test lasted for 7 days and the trial lasted for 60 days. The results showed as follows: 1) the digestibility of dry matter and crude fat were found no significant difference among all groups (P>0.05). The digestibility of crude protein in group Ⅲ was significantly higher than that in groups Ⅰ and Ⅱ (P0.05). The fecal nitrogen content in group Ⅴ was significantly lower than that in group Ⅱ (P0.05). In conclusion, when 0.52% methionine is supplemented in the protein diet with 29.31% protein level, that is, when the dietary methionine level is 1.03%, the female blue foxes have the optimum nutrient digestibility and serum biochemical parameters and meet the demand of methionine.

Cite this article

GUO Jungang , ZHANG Tietao , WU Xuezhuang , LIU Zhi , CUI Hu , GAO Xiuhua , YANG Fuhe , XING Xiumei . Effects of Dietary Methionine Level on Nutrient Digestibility, Nitrogen Metabolism and Serum Biochemical Parameters of Female Blue Foxes in Prepare Breeding Period[J]. Chinese Journal of Animal Nutrition, 2015 , 27(9) : 2970 -2976 . DOI: 10.3969/j.issn.1006-267x.2015.09.038

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