维生素D_(3)对黄羽肉种鸡生殖性状及其后代肉鸡生长性能、免疫器官发育、胫骨性状和肉品质的影响  

Effects of Vitamin D_(3) on Reproductive Traits of Yellow-Feathered Broiler Breeders and Growth Performance,Immune Organ Development,Tibia Characteristics and Meat Quality of Offspring Broilers

作　　者：王一冰 张盛 陈志龙 范秋丽 陈芳 丁发源 程忠刚 蒋守群 WANG Yibing;ZHANG Sheng;CHEN Zhilong;FAN Qiuli;CHEN Fang;DING Fayuan;CHENG Zhonggang;JIANG Shouqun(Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition,Key Laboratory of Animal Nutrition and Feed Science in South China,Ministry of Agriculture and Rural Affairs,State Key Laboratory of Livestock and Poultry Breeding,Institute of Animal Science,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,China)

机构地区：[1]广东省农业科学院动物科学研究所,畜禽育种国家重点实验室,农业农村部华南动物营养与饲料重点实验室,广东省畜禽育种与营养研究重点实验室,广州510640

出　　处：《动物营养学报》2022年第3期1533-1546,共14页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：财政部和农业农村部-国家现代农业产业技术体系(CARS-41);广东省自然科学基金项目(2021A1515012412,2021A1515010830);广东省重点领域研发计划项目(2020B0202090004);广东省农业科学院科技计划项目(202106TD,R2019PY-QF008,R2018QD-076);国家重点研发专项(2021YFD1300004)。

摘　　要：本试验旨在研究维生素D_(3)对黄羽肉种鸡生殖性状及其后代肉鸡生长性能、免疫器官发育、胫骨性状和肉品质的作用。选用720只岭南黄羽肉种母鸡(快大型,46周龄),根据体重和产蛋率一致原则随机分为6个组,分别饲喂在基础饲粮中添加0、800、1600、2400、3200和4000 IU/kg维生素D_(3)的饲粮,每组6个重复,每个重复20只鸡;试验期8周。雏鸡出生后,根据体重一致原则每组选取120只后代肉鸡开展饲养试验,每组6个重复,每个重复20只鸡(公母各占1/2);后代肉鸡饲喂添加1000 IU/kg维生素D_(3)的饲粮,试验期63 d。结果表明:1)饲粮维生素D_(3)添加水平显著影响黄羽肉种鸡的输卵管长度、输卵管和卵巢基质相对重量(P<0.05),且分别呈二次、线性和二次以及线性变化(P<0.05)。2)种鸡饲粮维生素D_(3)添加水平显著影响后代肉鸡1~21日龄的末重、平均日增重和料重比(P<0.05),且均呈二次变化(P<0.05);但对后代肉鸡22~42日龄和43~63日龄生长性能无显著影响(P>0.05)。种鸡饲粮维生素D_(3)添加水平对后代肉鸡21和63日龄腿肌和胸肌相对重量无显著影响(P>0.05)。3)种鸡饲粮维生素D_(3)添加水平显著影响后代肉鸡1日龄肝脏、脾脏相对重量以及21日龄胸腺相对重量(P<0.05),且均呈二次变化(P<0.05)。4)种鸡饲粮维生素D_(3)添加水平显著影响后代肉鸡1日龄胫骨长度和围度(P<0.05),且分别呈二次和线性变化(P<0.05);显著影响21日龄胫骨重量、长度、围度和粗灰分含量(P<0.05),且均呈线性和二次变化(P<0.05);但对63日龄胫骨性状无显著影响(P>0.05)。5)种鸡饲粮维生素D_(3)添加水平显著影响后代肉鸡63日龄宰后24 h胸肌肉色亮度(L*)和黄度(b*)值以及pH(P<0.05)。综上所述,在本试验条件下,种鸡饲粮维生素D_(3)添加水平显著影响黄羽肉种鸡生殖性状以及后代肉鸡的生长性能(生长初期)、免疫器官发育、胫骨性状和肉品质。综合试验观测�This experiment was conducted to investigate the effects of vitamin D_(3) on reproductive traits of yellow-feathered broiler breeders and the growth performance,immune organ development,tibia characteristics and meat quality of offspring broilers.A total of 720 Lingnan yellow-feathered broiler breeder hens(46 weeks of age)were randomly divided into 6 groups with 6 replicates per group and 20 hens per replicate according to the similar body weight and laying rate,and the hens were fed the basal diet supplemented with 0,800,1600,2400,3200 and 4000 IU/kg vitamin D_(3),respectively.The experiment lasted for 8 weeks.After chicks were born,120 offspring broilers were selected from each group according to the principle of consistent body weight for feeding experiment,with 6 replicates in each group and 20 broilers(half male and half female)in each replicate.Offspring broilers were fed the diet supplemented with 1000 IU/kg vitamin D_(3),and the experiment lasted for 63 days.The results showed as follows:1)dietary vitamin D_(3) supplemental level significantly affected the oviduct length and relative weight of oviduct and ovarian stroma of yellow-feathered broiler breeders(P<0.05),and the changes were quadratic,linear and quadratic,and linear(P<0.05),respectively.2)Dietary vitamin D_(3) supplemental level for breeders significantly affected the final weight,average daily gain and feed to gain ratio of offspring broilers from 1 to 21 days of age(P<0.05),and all had quadratic changes(P<0.05);but it had no significant effects on the growth performance of offspring broilers from 22 to 42 days and 43 to 63 days of age(P>0.05).Dietary vitamin D_(3) supplemental level for breeders had no significant effects on the relative weight of thigh muscle and breast muscle of offspring broilers at 21 and 63 days of age(P>0.05).3)Dietary vitamin D_(3) supplemental level for breeders significantly affected the relative weight of liver and spleen of offspring broilers at 1 day of age and the thymus relative weight at 21 days of age(P<0.05),a

关 键 词：维生素D_(3) 黄羽肉种鸡 生殖性状 后代肉鸡 生长性能 

分 类 号：S816[农业科学—饲料科学]