Effects of Aflatoxin B1 and Adsorbent on Growth Performance and Jejunum Digestive Enzyme Activities of Weaned Piglets

LI Jiangong; CHEN Daiwen; YU Bing; HE Jun; MAO Xiangbing; YU Jie; ZHENG Ping; WANG Quyuan; WANG Huifen; ZENG Zhu; LUO Junqiu

doi:10.3969/j.issn.1006-267x.2015.11.022

Chinese Journal of Animal Nutrition >

2015 , Vol. 27 >Issue 11: 3501 - 3508

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.11.022

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Effects of Aflatoxin B₁ and Adsorbent on Growth Performance and Jejunum Digestive Enzyme Activities of Weaned Piglets

LI Jiangong ,
CHEN Daiwen ,
YU Bing ,
HE Jun ,
MAO Xiangbing ,
YU Jie ,
ZHENG Ping ,
WANG Quyuan ,
WANG Huifen ,
ZENG Zhu ,
LUO Junqiu

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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: 2015-06-05

Online published: 2015-11-21

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Abstract

This study was conducted to investigate the effects of aflatoxin B₁ (AFB₁) on growth performance and the jejunum activities of digestive enzymes of weaned piglets. Seventy-two weaned piglets aged 28 d were randomly divided into 4 groups with 6 replicates per group and 3 weaned piglets per replicate for 35 d. The 4 groups were control group (basal diet), adsorbent group (basal diet+0.25% adsorbent), AFB₁ group (moldy corn diet, expected content of AFB₁ was 300 μg/kg) and AFB₁+adsorbent group (moldy corn diet+0.25% adsorbent). On day 22 to day 28, digestion experiment was carried out with endogenous indicator. The results showed as follows:AFB₁ had no significant influences on the growth performance, the apparent digestibility of crude protein (CP), ash, digestible energy (DE), calcium (Ca) and phosphorus (P), and the jejunum activity of digestive enzymes (P>0.05). Liver tissue of piglets receiving AFBl alone showed the disordered hepatic cord, serious granular and vacuole degeneration. The addition of adsorbent in the AFB₁ diets diminished the inhibitory effects of dietary AFB₁ on the liver tissue, reduced the activity of disaccharidase and increased the activity of oligopeptidase, but those effects were not significant (P>0.05). AFB₁ and adsorbent had a tendency to interact the apparent digestibility of Ca and the activity of aminopeptidase (P=0.05). In conclusion, though the diet with 300 μg/kg AFB₁ in piglets has no significant effects on the growth performance, intestinal digestive and absorptive function, and the organizational structure of liver has some injury to some extent. After adding 0.25% adsorbent to moldy corn group, the results express that the effects of the growth performance, intestinal digestive and absorptive function are not observed, the negative symptom of liver tissue are alleviated to some degree, but not restore to the normal state. Nonetheless, adsorbent added to the control group reduces the disaccharidase and oligopeptidase of jejunal.

Key words： weaned piglets; AFB₁; adsorbent; growth performance; jejunum; digestive enzymeies activities

Cite this article

LI Jiangong , CHEN Daiwen , YU Bing , HE Jun , MAO Xiangbing , YU Jie , ZHENG Ping , WANG Quyuan , WANG Huifen , ZENG Zhu , LUO Junqiu . Effects of Aflatoxin B₁ and Adsorbent on Growth Performance and Jejunum Digestive Enzyme Activities of Weaned Piglets[J]. Chinese Journal of Animal Nutrition, 2015 , 27(11) : 3501 -3508 . DOI: 10.3969/j.issn.1006-267x.2015.11.022

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