Effects of Guanidine Acetic Acid on Growth Performance, Slaughter Performance, Fat Deposition and Nutritional Components in Muscle of Stabling Tan Sheep

CHAO Yalin, LIU Bo, KOU Qifang, NIU Wenzhi, JIANG Hongqin, YANG Libin, ZHANG Guijie

doi:10.3969/j.issn.1006-267x.2019.01.046

2019 , Vol. 31 >Issue 1: 388 - 394

DOI: https://doi.org/10.3969/j.issn.1006-267x.2019.01.046

Molecular Nutrition

Effects of Guanidine Acetic Acid on Growth Performance, Slaughter Performance, Fat Deposition and Nutritional Components in Muscle of Stabling Tan Sheep

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1. Departments of Animal Science, Ningxia University, Yinchuan 750021, China;
2. Hongsipu District Tianyuan Well-Bred Sheep Breeding Co., Ltd., Wuzhong 751900, China;
3. Ningxia Hui Autonomous Region Husbandry Workstation, Yinchuan 750001, China;
4. Beijing Gendone Agricultural Technology Co., Ltd., Beijing 100085, China

Received date: 2018-06-14

Online published: 2019-01-16

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Abstract

The aim of this study was to determine the effects of guanidine acetic acid (GAA) on the growth performance, slaughter performance, fat deposition and nutritional components in muscle of stabling Tan sheep. One hundred and twenty healthy and emasculated Tan lambs with a similar body weight of (20.32±0.55) kg were randomly assigned into 4 groups (6 replicates per group, 5 lambs per replicate). Those in the control group fed a basal diet, and those in other groups fed the basal diet containing 0.04%, 0.08% and 0.12% GAA, respectively. The pre-feeding period lasted for 7 d, and formal experiment period lasted for 85 d. The results showed that compared with the control group, dietary supplementation of 0.08% and 0.12% GAA significantly increased the average daily weight gain (ADG) (P<0.05) and significantly decreased the feed to gain ratio (P<0.05); diets supplemented with GAA had no significant effect on the body weight (P>0.05), but dietary supplementation of 0.08% and 0.12% GAA significantly increased the dressing percentage (P<0.05) and dietary supplementation of 0.08% GAA significantly increased net meat rate (P<0.05); diets supplemented with 0.08% and 0.12% GAA significantly reduced the tail fat to carcass weight ratio and GR value (P<0.05); the contents of glycogen, intramuscular fat and protein in muscle increased significantly with the addition of 0.08% and 0.12% GAA in diets (P<0.05). In summary, 0.08% GAA supplemented to the diet can improve the growth performance and slaughter performance of Tan sheep, and significantly improve the body fat deposition and muscle composition.

Key words： guanidine acetic acid; Tan sheep; growth performance; slaughter performance; fat deposition

Cite this article

CHAO Yalin, LIU Bo, KOU Qifang, NIU Wenzhi, JIANG Hongqin, YANG Libin, ZHANG Guijie . Effects of Guanidine Acetic Acid on Growth Performance, Slaughter Performance, Fat Deposition and Nutritional Components in Muscle of Stabling Tan Sheep[J]. Chinese Journal of Animal Nutrition, 2019 , 31(1) : 388 -394 . DOI: 10.3969/j.issn.1006-267x.2019.01.046

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