饲粮营养水平与妊娠日龄对环江香猪背最长肌营养成分的影响  

Effects of Dietary Nutrient Levels and Days of Pregnancy on Nutrient Composition of Longissimus dorsi Muscle in Huanjiang Mini-pigs

作　　者：赵越 王芳芳[1] 耿梅梅 王占彬[2] 孔祥峰[1,3] ZHAO Yue;WANG Fangfang;GENG Meimei;WANG Zhanbin;KONG Xiangfeng(Institute of Subtropical Agriculture,Chinese Academy of Sciences,Key Laboratory for Agro-Ecological Processes in Subtropical Region,Changsha 410125,China;College of Animal Science and Technology,Henan University of Science and Technology,Luoyang 471003,China;Research Center of Mini-Pig,Huanjiang Observation and Research Station for Karst Ecosystems,Chinese Academy of Sciences,Huanjiang 547100,China)

机构地区：[1]中国科学院亚热带农业生态研究所,亚热带农业生态过程重点实验室,湖南长沙410125 [2]河南科技大学动物科技学院,河南洛阳471003 [3]中国科学院环江喀斯特农业生态试验站,香猪研究中心,广西环江547100

出　　处：《华北农学报》2017年第A01期215-219,共5页Acta Agriculturae Boreali-Sinica

基　　金：国家自然科学基金面上项目(31572421);国家自然科学基金面上项目连续资助项目(31270044);中科院“西部之光”人才培养计划重点项目

摘　　要：为了研究饲粮营养水平和妊娠日龄对环江香猪背最长肌营养成分的影响,选用首次妊娠的环江香猪48头,随机分为2组,分别饲喂NRC饲粮和地方猪饲粮,每组8个重复(栏),每重复3头。分别于妊娠第45,75,110 d每栏取1头母猪,放血处死后屠宰,取背最长肌测定营养成分的含量。结果表明:与地方饲粮组相比,NRC饲粮组背最长肌中妊娠75 d时亮氨酸、异亮氨酸、缬氨酸、精氨酸、苏氨酸和赖氨酸含量以及妊娠110 d时粗蛋白质含量均显著增加(P<0.05),妊娠110 d时单不饱和脂肪酸含量显著降低(P<0.05);与妊娠45,110 d母猪相比,妊娠75 d时NRC饲粮组背最长肌中大多数氨基酸含量显著增加(P<0.05)。由上可见,妊娠期尤其是妊娠75 d前饲喂NRC饲粮可通过增加机体氨基酸的供给而提高妊娠母猪肌肉蛋白质的沉积,这有利于促进母猪尽快达到体成熟和胎儿的生长发育。The present study was conducted to investigate the effects of dietary nutrient levels and days of pregnancy on nutrient composition of Longissimus dorsi(LD)muscle in Huanjiang mini-pigs.A total of 48 primiparous Huanjiang mini-pigs were randomly assigned into one of two groups,feeding NRC diet or local-pig diet,and reared in 8 pens(replicates)with 3 mini-pigs per pen.At 45,75,and 110 days of pregnancy,one pig was selected randomly and sacrificed from each pen.After sacrificed by bloodletting,the LD muscle were sampled for determining nutrient composition.Results showed that the LD muscle contents of leucine,isoleucine,valine,arginine,threonine,and lysine from NRC diet group at 75 days of service were significantly higher(P<0.05),as well as the crude protein at 110 days of service,while the content of monounsaturated fatty acid at 110 days of service was significantly lower(P<0.05),when compared with the local-pig diet group.Compared with the sows at 45 and 110 days of service,the majority of amino acids in LD muscle of NRC diet group were significantly higher(P<0.05)at 75 days of service.These findings suggested that NRC diet could increase the deposition of muscle protein by increasing the body amino acid supply during gestational period especially 1 to 75 days of pregnancy,which result in the achievement of body maturity as soon as possible and improvement of fetal growth and development.

关 键 词：妊娠环江香猪 背最长肌 常规营养成分 氨基酸 脂肪酸 

分 类 号：S816[农业科学—饲料科学]