Effects of Probiotics on Growth Performance, Immune Organ Indexes and Gastrointestinal pH of Weaner Piglets

ZHOU Meng; ZHANG Naifeng; DONG Xiaoli; WANG Liwen; TU Yan; JI Shoukun; ZHANG Lixia; CUI Xiang; LOU Can; DIAO Qiyu

doi:10.3969/j.issn.1006-267x.2014.02.021

Chinese Journal of Animal Nutrition >

2014 , Vol. 26 >Issue 2: 445 - 452

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.02.021

Feed Science and Technology

Effects of Probiotics on Growth Performance, Immune Organ Indexes and Gastrointestinal pH of Weaner Piglets

ZHOU Meng ,
ZHANG Naifeng ,
DONG Xiaoli ,
WANG Liwen ,
TU Yan ,
JI Shoukun ,
ZHANG Lixia ,
CUI Xiang ,
LOU Can ,
DIAO Qiyu

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1. Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
2. College of Animal Science, Xinjiang Agricultural University, Urumchi 830052, China;
3. Station of Animal and Veterinary of China, Beijing 100081, China

Received date: 2013-08-10

Online published: 2014-01-27

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Abstract

This experiment was conducted to study the effects of probiotics (Lactobacillus plantarum, Bacillus subtilisand and their complex-probiotics) on growth performance, immune organ indexes and gastrointestinal pH of weaner piglets. A total of 128 weaner piglets were divided into 4 groups with 4 replicates per group and 8 piglets per replicate. The 4 groups were control group (CT), Lactobacillus plantarum group (LB), Bacillus subtilisand group (BS) and complex-probiotics group (LBS), respectively. The experiment lasted for 35 days. The results showed as follows: 1) in the first 2 weeks of experiment, there was no significant difference in average daily gain of weaner piglets among all groups (P>0.05), however, compared with CT, the average daily feed intake and the ratio of feed to gain in LB, BS and LBS were significantly decreased by 23.27%, 20.61%, 15.39% and 24.75%, 24.75%, 23.23% (P<0.05), respectively. In the 3 to 5 weeks of experiment, there was no significant difference in average daily gain, average daily feed intake and the ratio of feed to gain of weaner piglets among all groups (P>0.05). 2) In the first 2 weeks of experiment, compared with CT, the liver index in LBS was significantly increased by 13.75% (P<0.05), the pH of stomach and duodenum was significantly decreased by 33.93% and 16.5% (P<0.05), respectively. It is concluded that probiotics can improve the growth performance, reduce feed cost and maintain healthy of weaner piglets during the early period, however, the effects will be weakened as the time go on.

Key words： weaner piglets; probiotics; growth performance; immune organ indexes

Cite this article

ZHOU Meng , ZHANG Naifeng , DONG Xiaoli , WANG Liwen , TU Yan , JI Shoukun , ZHANG Lixia , CUI Xiang , LOU Can , DIAO Qiyu . Effects of Probiotics on Growth Performance, Immune Organ Indexes and Gastrointestinal pH of Weaner Piglets[J]. Chinese Journal of Animal Nutrition, 2014 , 26(2) : 445 -452 . DOI: 10.3969/j.issn.1006-267x.2014.02.021

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