日粮净能水平对泌乳母猪繁殖性能的影响  

Effect of Dietary Net Energy Density on Sow Reproductive Performance during Lactation

作　　者：鲁茗源 赵小刚 石宝明[2] 刘兆金 LU Mingyuan;ZHAO Xiaogang;SHI Baoming;LIU Zhaojin(Animal Husbandry and Fisheries Research Center of Guangdong Haid Group Co.,Ltd.,Guangdong Guangzhou 511400,China;College of Animal Science and Technology,Northeast Agricultural University,Heilongjiang Harbin 150036,China;Guangdong Provincial Key Laboratory of Research on the Technology of Pig-Breeding and Pig-Disease Prevention,Animal Husbandry and Veterinary Research Institute of Guangdong Haida Co.,Ltd.,Guangdong Guangzhou 511400,China)

机构地区：[1]广东海大集团股份有限公司畜牧水产研究中心,广东广州511400 [2]东北农业大学动物科学技术学院,黑龙江哈尔滨150036 [3]广东海大畜牧兽医研究院有限公司,广东省养猪与猪病防控技术企业重点实验室,广东广州511400

出　　处：《饲料工业》2025年第4期36-42,共7页Feed Industry

基　　金：广东省科技计划(创新平台)项目[2020B212070023]。

摘　　要：试验旨在研究不同季节日粮净能水平对泌乳母猪繁殖性能的影响。将54头二元母猪随机分成5组,日粮净能水平分别为9.66、9.92、10.17、10.42、10.67 MJ/kg,测定冬季日粮不同净能水平对泌乳母猪繁殖性能的影响。将55头二元母猪随机分成5组,日粮净能水平分别为9.50、9.79、10.08、10.38、10.67 MJ/kg,测定夏季日粮不同净能水平对泌乳母猪繁殖性能的影响。结果显示:冬季日粮净能水平9.66、9.92、10.17 MJ/kg组平均日采食量和总赖氨酸摄入量显著高于10.67 MJ/kg组(P<0.05),仔猪平均日增重随着日粮净能水平的降低呈线性增加(P=0.03);日粮净能水平9.66、10.67 MJ/kg组乳糖含量显著高于其他组(P<0.05),随着日粮净能水平升高乳脂含量呈线性提高(P=0.05)。夏季日粮净能水平10.38 MJ/kg组母猪平均日采食量、净能摄入量、总赖氨酸摄入量显著高于9.79、10.08、10.67 MJ/kg组(P<0.05);各组之间断奶仔猪窝增重无显著差异(P>0.05)。综上所述,降低冬季日粮净能水平可以提高母猪平均日采食量、断奶仔猪窝增重,提高夏季日粮净能水平可以提高母猪净能摄入量;推荐冬季日粮净能水平为9.66 MJ/kg,夏季日粮净能水平为10.38 MJ/kg。The objective of these experiments is to determine the optimum dietary net energy density of lac-tating sows in different seasons.A total of 54 sows were randomly divided into 5 groups with dietary net energy levels of 9.66,9.92,10.17,10.42 and 10.67 MJ/kg,respectively.The effects of dietary net energy levels on reproductive performance of lactating sows in winter were measured.Fifty-five sows were ran-domly divided into 5 groups with dietary net energy levels of 9.50,9.79,10.08,10.38 and 10.67 MJ/kg,respectively,to determine the effects of different dietary net energy levels on reproductive performance of lactating sows in summer.Results showed that compared with 10.67 MJ/kg group,the average daily feed intake and total lysine intake of 9.66,9.92 and 10.17 MJ/kg groups were significantly improved in winter(P<0.05).The average weight gain of piglets increased linearly with the decrease of dietary net energy density(P=0.03).When dietary net energy densities were 9.66 and 10.67 MJ/kg,the lactose content were significantly higher than other groups(P<0.05).When energy densities increased,the milk fat con-tent showed a linear increase(P=0.05).The aver-age daily feed intake,total energy intake,and total lysine intake of 10.38 MJ/kg group were signifi-cantly higher than 9.79,10.08 and 10.67 MJ/kg groups(P<0.05).There was no significant difference in piglet litter weight gain among groups(P>0.05).Low net energy density diet increased sow feed intake and piglet litter weight gain in winter,and high net energy density diet increased the energy intake of sows in summer.The recommended net energy density is 9.66 MJ/kg in winter,and 10.38 MJ/kg in summer.

关 键 词：季节 净能水平 泌乳母猪 生产性能 乳成分 

分 类 号：S828.3[农业科学—畜牧学]