玉米赤霉烯酮对母猪繁殖性能和胎盘免疫相关基因表达量的影响

发布时间：2018-05-30 02:22

本文选题：玉米赤霉烯酮 + 母猪　；参考：《动物营养学报》2017年10期

【摘要】：本试验旨在研究饲粮中添加玉米赤霉烯酮(ZEN)对母猪繁殖性能和胎盘免疫相关基因表达量的影响。选择胎次相近、体重200 kg、妊娠第30天的长×大二元杂交母猪40头,随机分为2组,每组20个重复,每个重复1头。对照组饲喂基础饲粮,试验组饲粮在基础饲粮中添加1.5 mg/kg的ZEN。试验期74 d。结果表明,与对照组相比:1)饲粮中添加ZEN显著提高了妊娠期母猪死胎数和弱仔猪数(P0.05),显著降低了母猪总产仔数(P0.05);2)饲粮中添加ZEN显著提高了妊娠期母猪血清孕酮含量(P0.05);3)饲粮中添加ZEN显著提高了妊娠期母猪胎盘中Toll样受体-2(TLR-2)和孕酮受体(PGR)基因表达量(P0.05)。由此可见,母猪妊娠期饲粮中添加1.5 mg/kg ZEN可显著降低母猪总产仔数,并显著提高死胎数和弱仔猪数。饲粮中低水平的ZEN对母猪繁殖性能仍产生不利影响。
[Abstract]:The purpose of this study was to study the effects of Zen on reproductive performance and placental immune-related gene expression in sows. Forty crossbred sows with similar birth order, body weight of 200 kg and 30 days of gestation were randomly divided into 2 groups, 20 replicates in each group and 1 in each group. The control group was fed with basic diet and the experimental group was fed with 1. 5 mg/kg Zen. The trial period was 74 days. The results show that Compared with the control group, the addition of ZEN to diet significantly increased the number of dead and weak piglets in gestational sows and decreased the total litter size of sows (P0.05 / 2). The supplementation of ZEN significantly increased serum progesterone content in pregnant sows (P 0.05 / 3). The addition of ZEN significantly increased the expression of Toll like receptor -2TLR-2 and progesterone receptor P0.05in placenta of pregnant sows. It can be seen that the total litter size of sows was significantly reduced and the number of stillborn and weak piglets was significantly increased by adding 1. 5 mg/kg ZEN to the diet of sows during pregnancy. The low level of ZEN in diet still had a negative effect on the reproductive performance of sows.
【作者单位】：甘肃农业大学动物医学院;河南省农业科学院动物免疫学重点实验室农业部动物免疫学重点实验室;甘肃农业大学生命科学技术学院;
【分类号】：S828.5

【相似文献】