紫玉米花青素对产蛋后期淘汰赤水乌骨鸡生长性能、血浆生化指标和肉品质的影响  

Effects of Purple Corn Anthocyanin on Growth Performance,Plasma Biochemical Indexes and Meat Quality of Eliminated Chishui BlackBone Chickens during Late Laying Period

作　　者：覃继肖 周迪 李辉[1,2] 李佳轩[1,2] 王旭 许一清[1,2] 谢双龙 陈睿 卢琦 田兴舟[1,2] QIN Jixiao;ZHOU Di;LI Hui;LI Jiaxuan;WANG Xu;XU Yiqing;XIE Shuanglong;CHEN Rui;LU Qi;TIAN Xingzhou(Key Laboratory of Animal Genetics,Breeding and Reproduction in the Plateau Mountainous Region,Ministry of Education,Guizhou University,Guiyang 550025,China;College of Animal Science,Guizhou University,Guiyang 550025,China;Guizhou Testing Center for Livestock and Poultry Germplasm,Guiyang 550018,China)

机构地区：[1]贵州大学高原山地动物遗传育种与繁殖教育部重点实验室,贵阳550025 [2]贵州大学动物科学学院,贵阳550025 [3]贵州省种畜禽种质测定中心,贵阳550018

出　　处：《动物营养学报》2024年第3期1652-1664,共13页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：贵州省地方家禽产业联合攻关项目(黔财农[2020]175号);国家自然科学基金项目(32260849,32302779);贵州大学基础研究项目(贵大基础[2023]16号)。

摘　　要：本试验旨在研究紫玉米花青素对产蛋后期淘汰赤水乌骨鸡生长性能、血浆生化指标及肉品质的影响。采用单因素完全随机试验设计,将360只体况良好、体重相近的88周龄赤水乌骨鸡随机分为4组,每组6个重复,每个重复15只鸡。对照组饲喂基础饲粮,试验组在基础饲粮中分别添加120、240和360 mg/kg的紫玉米花青素,试验持续74 d,其中预试期14 d,正试期60 d。结果显示:与对照组相比,1)饲粮中添加240 mg/kg紫玉米花青素可显著提高平均净增重和平均日增重(P<0.05),显著降低料重比(P<0.05);2)饲粮中添加120、240或360 mg/kg紫玉米花青素均可显著降低第60天血浆总胆红素和肌酐含量(P<0.05),显著降低肌肉失水率(P<0.05);3)饲粮中添加240或360 mg/kg紫玉米花青素可显著提高肌肉中各氨基酸、鲜味氨基酸和必需氨基酸的含量(P<0.05);4)饲粮中添加120、240或360 mg/kg紫玉米花青素均可显著提高肌肉中C16∶1、C18∶1n9t、C20∶2n6、C22∶0、C20∶3n6、C20∶4n6、C22∶5n3和C22∶6n3的含量(P<0.05)。由此可见,饲粮中添加紫玉米花青素可提高产蛋后期淘汰赤水乌骨鸡的生长性能和饲料转化效率,降低肌肉失水率,上调肌肉鲜味氨基酸、必需氨基酸和不饱和脂肪酸的含量,改善鸡肉品质。综合来看,本试验条件下,紫玉米花青素添加量为240 mg/kg时效果最佳。The objective of this study was to investigate the effects of purple corn anthocyanin on growth performance,plasma biochemical indexes and meat quality of eliminated Chishui blackbone chickens during the late laying period.Three hundred and sixty 88weekold Chishui blackbone chickens were randomly allotted into four groups according to completely randomized design,each group had 6 replicates,and each replicate had 15 chickens.Chickens in control group were fed a basal diet,and those in experimental groups were fed the basal diet supplemented with 120,240 and 360 mg/kg of purple corn anthocyanin,respectively.The feeding trial lasted for 74 d,which consisted of the preparation period was 14 d and formal experiment period was 60 d.The results showed as follows:compared with the control group,1)dietary supplemented with 240 mg/kg purple corn anthocyanin could significantly increase average net gain and average daily gain(P<0.05),whereas it could significantly decrease feed/gain ratio(P<0.05);2)dietary supplemented with 120,240 or 360 mg/kg purple corn anthocyanins could significantly reduce plasma total bilirubin and creatinine content at day 60(P<0.05),and it could significantly decrease muscle water loss rate(P<0.05);3)dietary supplemented with 240 or 360 mg/kg purple corn anthocyanin could significantly increase the contents of individual amino acid,umami amino acid,and essential amino acid in muscle(P<0.05);4)dietary supplemented with 120,240 or 360 mg/kg purple corn anthocyanin could significantly increase the contents of C16∶1,C18∶1n9t,C20∶2n6,C22∶0,C20∶3n6,C20∶4n6,C22∶5n3 and C22∶6n3 in muscle(P<0.05).The results indicate that dietary supplemented with purple corn anthocyanin has the ability to increase the growth performance and feed conversion efficiency,decrease the muscle water loss rate,and improve the umami amino acid,essential amino acid and unsaturated fatty acid contents,and thus improve the meat quality of eliminated Chishui blackbone chickens during late laying period.Taken together,t

关 键 词：紫玉米花青素 淘汰赤水乌骨鸡 生长性能 血浆生化指标 肉品质 

分 类 号：S816[农业科学—饲料科学]