Effects of Rare Earth-Chitosan Chelate on Growth Performance, Serum Biochemical Indices, Nutrient Digestibility and Fecal Microbial Flora of Weaned Piglets

LI Fangfang; ZHOU Jing; ZHU Yujing; ZHANG Xin; GAO Yuan; MENG Ling; GUO Fulai; ZHANG Yong

doi:10.3969/j.issn.1006-267x.2016.02.023

2016 , Vol. 28 >Issue 2: 498 - 506

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.02.023

FEED SCIENCE AND TECHNOLOGY

Effects of Rare Earth-Chitosan Chelate on Growth Performance, Serum Biochemical Indices, Nutrient Digestibility and Fecal Microbial Flora of Weaned Piglets

LI Fangfang ,
ZHOU Jing ,
ZHU Yujing ,
ZHANG Xin ,
GAO Yuan ,
MENG Ling ,
GUO Fulai ,
ZHANG Yong

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1. College of Animal Sciences and Veterinary Sciences, Shenyang Agricultural University, Shenyang 110866, China;
2. Liaoning Debao Argi-Animal Husbandry Co., Ltd., Shenyang 110171, China

Received date: 2015-09-15

Online published: 2016-02-19

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Abstract

This study was conduct to explore the effects of dietary rare earth-chitosan chelate (RECC) on growth performance, serum biochemical indices, nutrient digestibility and fecal microbial flora of weaned piglets. Two hundred and forty healthy Large White piglets weaned at the age of 28 days were selected and randomly assigned to 4 groups with 4 replicates in each group and 15 piglets in each replicate. Pigs in the control group were fed a basal diet, while the others in experiment groups were fed the basal diet supplemented with 0.02%, 0.03% and 0.04% RECC, respectively. The trial lasted for 28 days. The results showed as follows:1) compared with the control group, 0.02% and 0.03% dietary RECC significantly increased the average daily gain and average daily feed intake (P<0.05), significantly reduced feed/gain (P<0.05), and dietary RECC significantly reduced the diarrhoea rate of weaned piglets (P<0.05). 2) 0.02% and 0.03% dietary RECC significantly increased the serum growth hormone and immunoglobulin G contents of weaned piglets (P<0.05). 3) 0.02% and 0.03% dietary RECC significantly increased the digestibilities of dry matter, crude protein and ether extract of weaned piglets (P<0.05), and 0.02% dietary RECC significantly increased the digestibilities of Ca and P of weaned piglets (P<0.05). 4) Dietary RECC had no significant effects on the numbers of Escherichia coli, Bifidobacterium and Lactobacillus (P>0.05), but made a trend to reduce the number of Escherichia coli. It is concluded that diet supplemented with RECC can improve hormone levels and microbial balance, and then promote growth performance and immune function of weaned piglets. The suitable supplemental level of RECC on weaned piglets is 0.02%.

Key words： RECC; weaned piglets; growth performance; serum biochemical indices; nutrient digestibility; fecal microbial flora

Cite this article

LI Fangfang , ZHOU Jing , ZHU Yujing , ZHANG Xin , GAO Yuan , MENG Ling , GUO Fulai , ZHANG Yong . Effects of Rare Earth-Chitosan Chelate on Growth Performance, Serum Biochemical Indices, Nutrient Digestibility and Fecal Microbial Flora of Weaned Piglets[J]. Chinese Journal of Animal Nutrition, 2016 , 28(2) : 498 -506 . DOI: 10.3969/j.issn.1006-267x.2016.02.023

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