Special Economic Animal Nutrition

Effects of Dietary Fat Sources on Nutrient Digestion and Metabolism of Short-Haired Black Minks (Mustelidae vison)in Furring Period

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  • 1. State Key Laboratory for Molecular Biology of Special Economical Animals, Institute of Special Wild Economic Animal and Plant Science, Chinese Academy Agricultural Sciences, Changchun 130012, China;
    2. Feed Research Institute, Chinese Academy Agricultural Sciences, Beijing 100081, China

Received date: 2014-03-03

  Online published: 2014-08-13

Abstract

This study was conducted to study the effects of dietary fat sources on nutrient digestion and metabolism of short-haired black minks in furring period. Ninety six 120-day-old healthy short-haired black minks with similar body weight were randomly assigned to 4 groups with 24 minks in each group. Minks in the four groups were fed the experimental diets with fat sources of soybean oil (group Ⅰ), chicken fat (group Ⅱ), fish oil (group Ⅲ) and lard (group Ⅳ), respectively. The experiment lasted for 80 days. The results showed as follows: 1) there were no significant difference on the digestibility of dry matter, crude protein and ether extract of male minks among all groups (P>0.05). There were no significant difference on dry matter intake and the digestibility of dry matter and crude protein of female minks among all groups (P>0.05). 2) There were no significant difference on fecal nitrogen, nitrogen retention and biological value of protein of male and female minks among all groups (P>0.05), the net protein utilization of female minks in group Ⅰ was significantly higher than that in group Ⅳ (P<0.05). 3)The gross energy, urinary energy, digestible energy and metabolic energy of male minks in group Ⅱ were significantly higher than that in group Ⅲ (P<0.05). There were no significant difference on fecal energy, gross energy digestibility, gross energy metabolizability and digestible energy metabolizability of male minks among all groups (P>0.05). There was no significant difference on gross energy, digestible energy, metabolic energy and gross energy digestibility of female minks among all groups (P>0.05). The fecal energy and urinary energy of female minks in group Ⅳ were significantly higher than that in group Ⅲ (P<0.05). In conclusion, dietary fat sources have no obvious effects on nutrient digestion and metabolism of short-haired black minks in furring period.

Cite this article

YANG Ying, WU Qiong, RONG Min, WU Xuezhuang, XING Xiumei . Effects of Dietary Fat Sources on Nutrient Digestion and Metabolism of Short-Haired Black Minks (Mustelidae vison)in Furring Period[J]. Chinese Journal of Animal Nutrition, 2014 , 26(8) : 2217 -2224 . DOI: 10.3969/j.issn.1006-267x.2014.08.024

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