益生菌对采食玉米赤霉烯酮污染日粮的育肥母猪的影响  

Effects of probiotics on fattening sows fed with a diet contaminated with zearalenone

作　　者：钟俊宇 李涛 郑隆清 尹福泉[1] ZHONG Junyu;LI Tao;ZHENG Longqing;YIN Fuquan(Binhai College of Agriculture,Guangdong Ocean University,Zhanjiang 524088,China)

机构地区：[1]广东海洋大学滨海农业学院,广东湛江524088

出　　处：《养殖与饲料》2024年第3期37-42,共6页Animals Breeding and Feed

基　　金：广东省2022年“大商所农保计划”项目(2022A05209);广东海洋大学乡村振兴“揭榜挂帅”科技帮扶项目(04号);广东海洋大学2022年社会服务专项资金项目。

摘　　要：[目的]研究微生物脱毒法对采食玉米赤霉烯酮(ZEA)污染日粮育肥母猪的治疗效果,为益生菌缓解育肥母猪ZEA中毒症状提供参考。[方法]选取体质量(36.17±2.24)kg育肥母猪18头,随机分为3个处理,对照组A按照标准饲料饲喂,处理组B在A组饲料基础上添加ZEA 300μg/kg,处理组C在B组饲料基础上添加0.2%的自制益生菌(地衣芽孢杆菌和角蛋白酶)。每个处理组重复6次,试验期24 d。饲养试验完成后,根据母猪的生长性能和阴户面积等指标,从3个处理组中分别选取3头母猪进行屠宰检测。[结果]日粮中含有300.00μg/kg的ZEA致使育肥母猪出现阴户肿胀,生殖器官指数增加。3组母猪外阴随饲养时间延长而红肿增大,但C组阴户面积可恢复至正常组水平。在日增质量、采食量、饲料转化率上表现大致相同。肝脏中没有检测到ZEA的残留。血清指标中各组FSH、LH、E2差异不显著,但B组血清中PRL与其他组差值较大。[结论]添加0.2%自制益生菌可以在体外降解ZEA,缓解母猪的外阴红肿现象,并减轻ZEA对动物的危害。[Objectives]The effects of probiotics on commercially fattening sows fed with a diet contaminated with zearalenone were studied to clarify the alleviating effect of probiotics on the toxic‐ity of zearalenone.[Methods]18 fattening sows with a body weight of(36.17±2.24)kg were se‐lected and randomly divided into 3 treatments,with 6 replicates for each treatment.The experimental period was 24 days.The three treatments for sows included control group A fed with normal diet,treatment group B added 300µg/kg of ZEA to the feed of group A,and treatment group C added 0.2%probiotics(Bacillus licheniformis and keratase)to the feed of group B.3 sows after ending the feeding experiment were selected from Group A,Group B,and Group C for slaughter experiments based on indexes including the redness and swelling of the vagina and growth performance.[Results]The diet containing 300.00μg/kg of ZEA led to the swelling of the vagina and an increase in the in‐dex of reproductive organ in commercially fattening sows.The vaginal area of three groups of sows increased with prolonged feeding time.The redness and swelling of the vaginal area in Group C re‐turned to the normal level after it increased.The performance of three groups of sows in terms of production performance including the daily gain of weight,feed intake,and the conversion rate of feed was roughly the same.No residue of ZEA was detected in the liver.There was no significant difference in FSH,LH,and E2 among the groups in the determination of serum indexes,while the PRL in the serum of Group B was significantly different from other groups.[Conclusions]Probiotics that can efficiently degrade ZEA in vitro were validated through feeding experiments to alleviate the redness and swelling of vagina in sows and reduce the harm of ZEA to animals.

关 键 词：益生菌 玉米赤霉烯酮 育肥母猪 生物毒性 微生物法脱毒 地衣芽孢杆菌 角蛋白酶 

分 类 号：S828.5[农业科学—畜牧学]