动物营养学报2015，Vol.27Issue(11)：3501-3508,8.DOI:10.3969/j.issn.1006-267x.2015.11.022
黄曲霉毒素B1及其吸附剂对断奶仔猪生长性能和空肠消化酶活性的影响
Effects of Aflatoxin B1 and Adsorbent on Growth Performance and Jejunum Digestive Enzyme Activities of Weaned Piglets
摘要
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 ac-tivity of digestive enzymes ( P>0.05) . Liver tissue of piglets receiving AFBl alone showed the disordered he-patic 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 tend-ency 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.关键词
断奶仔猪/AFB1/吸附剂/生长性能/空肠/消化酶活性Key words
weaned piglets/AFB1/adsorbent/growth performance/jejunum/digestive enzymeies activities分类
农业科技引用本文复制引用
李建功,陈代文,余冰,何军,毛湘冰,虞洁,郑萍,王曲圆,王慧芬..黄曲霉毒素B1及其吸附剂对断奶仔猪生长性能和空肠消化酶活性的影响[J].动物营养学报,2015,27(11):3501-3508,8.基金项目
荷兰泰高集团和四川农业大学双支团队资助 （）
