Effects of Dietary Zinc Source and Level on Body Weight, Nutrient Digestibility and Nitrogen Metabolism of Male Minks during Furring Period

LIU Jinjun; LIU Jie; REN Erjun; LI Yaqing; LI Xiaohua

doi:10.3969/j.issn.1006-267x.2013.09.032

2013 , Vol. 25 >Issue 9: 2168 - 2173

DOI: https://doi.org/10.3969/j.issn.1006-267x.2013.09.032

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Effects of Dietary Zinc Source and Level on Body Weight, Nutrient Digestibility and Nitrogen Metabolism of Male Minks during Furring Period

LIU Jinjun ,
LIU Jie ,
REN Erjun ,
LI Yaqing ,
LI Xiaohua

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1. Shijiazhuang Academy of Agriculture and Forestry Sciences, Shijiazhuang 050041, China;
2. Shijiazhuang Technic School of Agriculture, Shijiazhuang 050041, China

Received date: 2013-03-11

Online published: 2013-08-18

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Abstract

This experiment was conducted to study the effects of dietary zinc source and level on body weight, nutrient digestibility and nitrogen metabolism of male minks in furring period. Eighty-four male minks were randomly assigned into 7 groups with 12 replicates. The diets were supplemented with 0 (group Ⅰ), 15 (group Ⅱ), 30 (group Ⅲ), 45 (group Ⅳ), 60 (group Ⅴ) and 75 mg/kg zinc methionine (group Ⅵ) and 60 mg/kg zinc sulfate (group Ⅶ), respectively. The adaptation period lasted for 7 days and the formal period lasted for 40 days. The results showed that body weight (140 days of age) and average daily gain (120 to 140 days of age) in group Ⅲ were significantly higher than those in group Ⅰ and group Ⅵ (P<0.05). Ether extract digestibility in group Ⅲ was significantly higher than that in group Ⅵ (P<0.05). Nitrogen deposition, net protein utilization and protein biological value in group Ⅲ were significantly higher than those in group Ⅱ (P<0.05). There were no significant differences in these items between group Ⅲ and group Ⅶ (P>0.05). In conclusion, 30 mg/kg is the optimal level of zinc methionine to add in diet of male minks in furring period.

Key words： furring period; male mink; zinc; body weight; digestibility and metabolism

Cite this article

LIU Jinjun , LIU Jie , REN Erjun , LI Yaqing , LI Xiaohua . Effects of Dietary Zinc Source and Level on Body Weight, Nutrient Digestibility and Nitrogen Metabolism of Male Minks during Furring Period[J]. Chinese Journal of Animal Nutrition, 2013 , 25(9) : 2168 -2173 . DOI: 10.3969/j.issn.1006-267x.2013.09.032

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