Effects of Benzioc Acid on Growth Performance, Organ Indexes and Gastrointestinal Content pH of Weaned Piglets

CHEN Jiali; CHEN Daiwen; YU Bing; HE Jun; MAO Xiangbing; YU Jie; LUO Junqiu; ZHANG Cheng; PU Bei; WANG Quyuan; ZHENG Ping

doi:10.3969/j.issn.1006-267x.2015.01.029

Chinese Journal of Animal Nutrition >

2015 , Vol. 27 >Issue 1: 238 - 246

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.01.029

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Effects of Benzioc Acid on Growth Performance, Organ Indexes and Gastrointestinal Content pH of Weaned Piglets

CHEN Jiali ,
CHEN Daiwen ,
YU Bing ,
HE Jun ,
MAO Xiangbing ,
YU Jie ,
LUO Junqiu ,
ZHANG Cheng ,
PU Bei ,
WANG Quyuan ,
ZHENG Ping

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Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Ya'an 625014, China

Received date: 2014-08-04

Online published: 2015-01-10

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Abstract

The objective of this experiment was to study the effects of benzoic acid on growth performance, organ indexes and gastrointestinal content pH of weaned piglets. A total of 72 weaned piglets aged 28 days were randomly divided into 2 groups with 12 replicates per group and 3 piglets per replicate. Pigs in control group were fed a basal diet, and the others in benzoic acid group were fed the basal diet supplemented with 5 000 mg/kg benzoic acid. The experiment lasted for 42 days. The results showed as follows: 1) the bodyweight of piglets in benzoic acid group on day 28 and 42 was significantly higher than that in the control group (P<0.05 and P<0.01, respectively); compared with the control group, the ratio of feed to gain in benzoic acid group was significantly decreased (P<0.05), and the average daily gain was significantly increased from day 15 to day 28, day 29 to day 42 and day 1 to day 42 (P<0.01). 2) Compared with the control group, the contents of serum globulin and the immunoglobulin G in the benzoic acid group on day 14 and 42 were significantly increased (P<0.05), and the serum urea nitrogen content on day 14 and 42 was significantly decreased (P<0.05). 3) The small intestinal, spleen and thymus indexes in the benzoic acid group on day 14 and 42 were significantly higher than those in the control group (P<0.05). 4) The benzoic acid group significantly reduced the pH in stomach and colon contents on day 14 and 42 (P<0.05), and the pH in urine on day 42 (P<0.01). In conclusion, supplementation with 5 000 mg/kg benzoic acid in the diet can reduce the gastrointestinal content pH, increase the immune organ indexes and improve the serum biochemical parameters, and then enhance the growth performance of weaned piglets.

Key words： weaned piglets; benzoic acid; growth performance; organ indexes

Cite this article

CHEN Jiali , CHEN Daiwen , YU Bing , HE Jun , MAO Xiangbing , YU Jie , LUO Junqiu , ZHANG Cheng , PU Bei , WANG Quyuan , ZHENG Ping . Effects of Benzioc Acid on Growth Performance, Organ Indexes and Gastrointestinal Content pH of Weaned Piglets[J]. Chinese Journal of Animal Nutrition, 2015 , 27(1) : 238 -246 . DOI: 10.3969/j.issn.1006-267x.2015.01.029

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