Molecular Nutrition

Effects of Glutamine on Intestinal Development of Meat Rabbits

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  • 1. Sichuan Animal Science Academy, Chengdu 610066, China;
    2. Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, China

Received date: 2017-02-15

  Online published: 2017-09-08

Abstract

This experiment was conducted to evaluate the effects of glutamine on intestinal development of meat rabbits. Three hundred and sixty 28-day-old weaned New Zealand meat rabbits were selected and randomly divided into 4 groups with 9 replicates per group and 10 meat rabbits (half male and half female) per replicate. Meat rabbits in the 4 groups were fed experimental diets supplemented with 0, 0.4%, 0.8% and 1.2% glutamine based on a basal diet, respectively. The experimental period was 4 weeks. The results showed that glutamine supplementation had no significant effects on stomach weight and cecum weight at 35, 42 and 56 days of age and small intestine length at 56 days of age for meat rabbits (P>0.05), but diet supplemented with 0.8% glutamine could significantly increase the small intestine weight at 35 and 42 days of age for meat rabbits (P<0.05). Diet supplemented with 0.8% and 1.2% glutamine could significantly elevate the duodenum and jejunum villus height at 35 and 42 days of age for meat rabbits (P<0.05), and diet supplemented with 0.8% glutamine could significantly elevate the ileum villus height at 35 and 42 days of age and duodenum and jejunum villus height at 56 days of age for meat rabbits (P<0.05). Diet supplemented with 0.8% glutamine could significantly reduce the duodenum and jejunum crypt depth at 35 and 42 days of age and ileum crypt depth at 35 days of age for meat rabbits (P<0.05). In conclusion, glutamine supplementation can improve the intestinal development of meat rabbits at 1 to 2 weeks post weaning. In this experiment condition, the suitable supplemental level of glutamine in the diet of meat rabbits is 0.8%.

Cite this article

GUO Zhiqiang, TANG Li, LI Congyan, XIE Xiaohong, REN Yongjun, KUANG Liangde, ZHENG Jie, LEI Min . Effects of Glutamine on Intestinal Development of Meat Rabbits[J]. Chinese Journal of Animal Nutrition, 2017 , 29(9) : 3132 -3137 . DOI: 10.3969/j.issn.1006-267x.2017.09.014

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