Effects of Water Soluble Alfalfa Polysaccharide on Growth Performance, Carcass Quality, Growth Hormone and Insulin-Like Growth Factor-1 Gene Expressions of Broilers

OUYANG Kehui; XIONG Xiaowen; WANG Wenjun; HU Yao; LAI Yikui; WU Dengkun

doi:10.3969/j.issn.1006-267x.2014.05.018

2014 , Vol. 26 >Issue 5: 1272 - 1278

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.05.018

Feed Science and Technology

Effects of Water Soluble Alfalfa Polysaccharide on Growth Performance, Carcass Quality, Growth Hormone and Insulin-Like Growth Factor-1 Gene Expressions of Broilers

OUYANG Kehui ,
XIONG Xiaowen ,
WANG Wenjun ,
HU Yao ,
LAI Yikui ,
WU Dengkun

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1. Key Laboratory of Animal Nutrition and Feed Science of Jiangxi Province, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, China;
2. Key Laboratory of Natural Product and Quality Control of Nanchang City, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China;
3. Animal Husbandry and Veterinary Station of Ji'an County, Ji'an 343000, China

Received date: 2013-12-05

Online published: 2014-05-05

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Abstract

This trial was conducted to investigate the effects of water soluble alfalfa polysaccharide (WSAP) on growth performance, carcass quality, growth hormone (GH) and insulin-like growth factor-1 (IGF-1) gene expressions of broilers. A total of 360 1-day-old Avian broilers were randomly divided into 4 groups with 6 replicates per group and 15 broilers per replicate, which were fed a basal diet (control group), and the basal diet+0.5%, 1.0% and 1.5% WSAP for 42 days, respectively. The results showed as follows: compared with control group, the broilers fed 1.0% and 1.5% WSAP had higher average body weight at day 42(P<0.05), average daily feed intake and average daily gain (P<0.05 or P<0.01) and had lower feed to gain ratio (P<0.05) at the later stage (21 to 42 d) and the whole stage (1 to 42 d); WSAP could also improve the percentage of breast muscle (P<0.05) and decrease the percentage of abdominal fat (P<0.05); meanwhile, WSAP enhanced the GH and IGF-1 gene expressions in liver, adipose and kidney (P<0.05 or P<0.01). The results suggest that WSAP can enhance the GH and IGF-1 gene expressions, and improve the growth performance and the carcass quality of broilers. It is recommended that the optimal supplemental level of WSAP is 1.0%.

Key words： broilers; water soluble alfalfa polysaccharides; growth performance; carcass quality; GH; IGF-1

Cite this article

OUYANG Kehui , XIONG Xiaowen , WANG Wenjun , HU Yao , LAI Yikui , WU Dengkun . Effects of Water Soluble Alfalfa Polysaccharide on Growth Performance, Carcass Quality, Growth Hormone and Insulin-Like Growth Factor-1 Gene Expressions of Broilers[J]. Chinese Journal of Animal Nutrition, 2014 , 26(5) : 1272 -1278 . DOI: 10.3969/j.issn.1006-267x.2014.05.018

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