饲粮添加脯氨酸对妊娠环江香猪繁殖性能和血浆生化参数的影响

发布时间：2018-01-10 22:31

本文关键词：饲粮添加脯氨酸对妊娠环江香猪繁殖性能和血浆生化参数的影响　出处：《动物营养学报》2016年02期 　论文类型：期刊论文

【摘要】：本试验旨在研究脯氨酸代谢对妊娠环江香猪繁殖性能的影响,并探讨其可能的生理生化机制。选取48头后备环江母猪,配种15 d后随机分成3组,每组8个重复,每个重复2头猪。各组分别饲喂添加0.77%L-丙氨酸(丙氨酸组)、1%L-脯氨酸(脯氨酸组)、0.77%L-丙氨酸+0.016 7%二氟甲基鸟氨酸(DFMO)(DFMO组)的试验饲粮。分别于配种第45和70天,每重复随机取1头母猪,放血处死,收集血液,用于生化参数分析;解剖母猪,记录黄体数、胎儿数和胎儿重。结果表明:妊娠第70天时,脯氨酸组窝重显著高于丙氨酸组(P0.05);妊娠第45天时,脯氨酸组血浆谷丙转氨酶活性以及白蛋白浓度均显著低于丙氨酸组(P0.05)。妊娠第70天与第45天相比,脯氨酸组血浆总胆固醇浓度、DFMO组血浆高密度脂蛋白和白蛋白浓度均显著降低(P0.05)。其余指标各组间均无显著差异(P0.05)。由此可见,饲粮添加脯氨酸可能通过改善机体氮代谢和脂肪代谢而促进妊娠环江香猪胎儿的生长发育。
[Abstract]:The aim of this study was to study the effect of proline metabolism on reproductive performance of pregnant Huanjiang Xiang pigs and to explore its possible physiological and biochemical mechanisms. 48 back-up Huanjiang sows were randomly divided into 3 groups after 15 days of breeding. Each group was fed with 0.77 L- alanine (alanine group) and 1 L-proline group (proline group). The diet of 0.77L alanine 0.016 7% difluoromethylornithine group (DFMOM) was randomly selected at 45 and 70 days after breeding. Blood was put to death and blood was collected for biochemical parameter analysis. The results showed that the litter weight of proline group was significantly higher than that of alanine group on the 70th day of pregnancy. On the 45th day of pregnancy, the activity of plasma alanine aminotransferase and the concentration of albumin in proline group were significantly lower than those in the alanine group (P 0.05). Plasma total cholesterol concentration in proline group. Plasma high density lipoprotein (HDL) and albumin concentrations in DFMO group were significantly lower than those in control group (P 0.05), but there was no significant difference between the other groups. Dietary proline supplementation may promote the growth and development of pregnant Huanjiang Xiang pig fetus by improving nitrogen metabolism and fat metabolism.
【作者单位】：江西农业大学江西省动物营养重点实验室江西省营养饲料开发工程中心;中国科学院亚热带农业生态研究所中国科学院亚热带农业生态过程重点实验室;中国科学院环江喀斯特农业生态试验站香猪研究中心;
【基金】：国家自然科学基金面上项目(31270044) 中科院“西部之光”人才培养计划重点项目留学回国人员科研启动基金
【分类号】：S828.5
【正文快照】： 初产母猪在妊娠期内有20%~50%的胚胎/胎儿损失,而妊娠早期是整个妊娠期胚胎/胎儿死亡的高峰期[1]。初产母猪妊娠早期的高胚胎损失率严重制约着母猪的繁殖效率。胎儿的生长发育是一个复杂的生物学过程,受遗传、营养、环境和母体成熟程度等因素的影响[2]。通过营养手段,可改善胎

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