摘要
本试验旨在研究饲粮中添加甜味剂对母猪生长性能、繁殖性能及母猪和仔猪血清激素指标的影响,为甜味剂在母猪饲养中的应用提供理论依据。试验选用100头健康、体重相近的“长×大”二元二胎母猪,随机分为2组,每组10个重复,每个重复5头母猪。对照组母猪饲喂基础饲粮,甜味剂组母猪分娩前7 d在基础饲粮中添加500 g/t甜味剂。试验期为分娩前7 d至分娩后23 d。结果表明:1)与对照组相比,甜味剂组母猪的总采食量极显著提高(P<0.01),平均日采食量显著提高(P<0.05)。2)与对照组相比,甜味剂组的仔猪断奶窝重极显著提高(P<0.01)。3)在母猪分娩后23 d,与对照组相比,甜味剂组的母猪血清刺鼠基因相关蛋白(AgRP)、神经肽Y(NPY)和胃饥饿素(Ghrelin)含量显著提高(P<0.05),母猪血清皮质醇(COR)和瘦素(LEP)含量显著降低(P<0.05)。4)仔猪断奶当天,与对照组相比,甜味剂组的仔猪血清类胰岛素样生长因子-1(IGF-1)含量显著提高(P<0.05),仔猪血清NPY和Ghrelin含量极显著提高(P<0.01),仔猪血清COR含量显著降低(P<0.05)。由此可见,饲粮中添加500 g/t甜味剂可提高母猪的生长性能和繁殖性能,促进刺激食欲的胃肠道激素的分泌,降低抑制食欲的胃肠道激素的释放,提高母猪的食欲及采食量,改善血糖相关激素的含量,提高血清中生长相关激素的含量。
The aim of this experiment was to investigate the effects of dietary sweetener on growth performance,reproductive performance of sows and serum hormone indices of sows and piglets,to provide a theoretical basis for the application of sweetener in sow feeding.A total of 100 healthy“Landrace×Large White”crossed second born sows with similar body weight were randomly divided into 2 group with 10 replicates in each group and 5 sows in each replicate.Sows in the control group was fed a basal diet,and sows in the sweetener group were fed a basal diet supplemented with 500 g/t sweetener on the 7 days before delivery.The experimental period was from 7 days before delivery to 23 days after delivery.The results showed as follows:1)compared with the control group,the total feed intake of sows in the sweetener group was extremely significant increased(P<0.01),and the average daily feed intake was significant increased(P<0.05).2)Compared with the control group,the weaning litter weight of piglets in the sweetener group was extremely significant increased(P<0.01).3)On 23 days after delivery of sows,compared with the control group,the contents of agouti-related protein(AgRP),neuropeptide Y(NPY)and ghrelin(Ghrelin)in serum of sows in the sweetener group were significant increased(P<0.05),and the contents of cortisol(COR)and leptin(LEP)in serum of sows were significant decreased(P<0.05).4)On the day of weaning of piglets,compared with the control group,the content of insulin-like growth factor-1(IGF-1)in serum of piglets in the sweetener group was significant increased(P<0.05),the contents of NPY and Ghrelin in serum of piglets were extremely significant increased(P<0.01),and the content of COR in serum of piglets was significant decreased(P<0.05).In conclusion,dietary 500 g/t sweetener can improve the growth performance and reproductive performance of sows,promote the secretion of gastrointestinal hormone that stimulate appetite,reduce the release of gastrointestinal hormone that inhibit appetite,increase the appetite and feed intake of sows,improve the blood glucose related hormone contents,and increase the contents of growth-related hormone in serum.
作者
刘显军
齐奇
郑佳星
陈静
黄天祥
徐正男
孙佳伟
何雨桥
马嘉悦
田于金和
LIU Xianjun;QI Qi;ZHENG Jiaxing;CHEN Jing;HUANG Tianxiang;XU Zhengnan;SUN Jiawei;HE Yuqiao;MA Jiayue;TIAN Yujinhe(College of Animal Science and Veterinary Medicine,Shenyang Agricultural University,Shenyang 110866,China)
出处
《动物营养学报》
北大核心
2025年第11期7406-7415,共10页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
国家重点研发计划(2023YFD1300200)
辽宁省重点研发项目(2024JH2/102400009)
辽宁省种质创新藏粮于技专项(2023JH1/10200006)
沈阳市科技攻关项目(24-215-2-20)。
关键词
甜味剂
母猪
生长性能
繁殖性能
激素
sweetener
sows
growth performance
reproductive performance
hormone
