椰子粕养分含量分析及体外仿生法评定其在黄羽肉鸡上的营养价值  

Analysis of Nutrient Contents of Copra Meal and Evaluation of Its Nutritional Value in Yellow Feathered Broiler Chickens by in Vitro Biomimetic Method

作　　者：韩明霞 邓生青 郭诚诺 赵桂苹[2] 王钰明[2] 赵峰[2] 解竞静[2] 萨仁娜[2] 李蕴玉[1] HAN Mingxia;DENG Shengqing;GUO Chengnuo;ZHAO Guiping;WANG Yuming;ZHAO Feng;XIE Jingjing;SA Renna;LI Yunyu(Hebei Key Laboratory of Preventive Veterinary Medicine,College of Animal Science and Technology,Hebei Normal University of Science&Technology,Qinhuangdao 066600,China;State Key Laboratory of Animal Nutrition and Feeding,Institute of Animal Sciences of Chinese Academy of Agricultural Sciences,Beijing 100193,China)

机构地区：[1]河北科技师范学院动物科技学院,河北预防兽医学重点实验室,秦皇岛066600 [2]中国农业科学院北京畜牧兽医研究所,畜禽营养与饲养全国重点实验室,北京100193

出　　处：《动物营养学报》2024年第8期5376-5386,共11页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：中国农业科学院科技创新工程(ASTIP-IAS07);文昌鸡优势特色产业集群项目(WCSCICP20211106)。

摘　　要：本试验旨在分析海南省地源性饲料原料椰子粕的常规养分含量,并利用体外仿生法评定其在黄羽肉鸡上的营养价值,探讨常规养分含量与酶水解物能值(EHGE)的关系。试验采集了海南省不同地区的14种椰子粕,测定了常规养分、氨基酸和矿物元素含量,并利用单胃动物仿生消化系统测定了体外干物质消化率(IVDMD)、体外粗蛋白质消化率(IVCPD)、体外总能消化率(IVGED)和EHGE。结果表明:1)椰子粕的干物质含量平均值为93.56%,粗蛋白质含量平均值为17.15%,粗脂肪含量平均值为22.39%,总能平均值为23.20 MJ/kg,粗纤维含量平均值为16.20%,中性洗涤纤维含量平均值为43.06%,酸性洗涤纤维含量平均值为29.38%。2)椰子粕的总氨基酸含量平均值为13.73%,其中蛋氨酸含量平均值为0.23%,赖氨酸含量平均值为0.70%。3)椰子粕的钙含量较低,平均值为673.69 mg/kg;磷含量较高,平均值为5549.49 mg/kg。4)利用单胃动物仿生消化系统模拟黄羽肉鸡消化过程,测定椰子粕的EHGE平均值为12.05 MJ/kg,IVDMD平均值为37.29%,IVCPD平均值为70.81%,IVGED平均值为51.44%。椰子粕的EHGE和IVGED与粗脂肪含量呈显著正相关(P<0.05)。由此可见,海南省地源性饲料原料椰子粕常规养分含量变异较大。The objective of this study was to analyze the conventional nutrient contents of geogenic feed raw material copra meal in Hainan province,and evaluated the nutritional value in yellow feathered broiler chickens by in vitro biomimetic method,to explore the relationship between conventional nutrient contents and enzyme hydrolysate gross energy(EHGE).Fourteen copra meals were collected from different regions of Hainan province,the contents of conventional nutrient,amino acids and mineral elements were determined,and the in vitro dry matter digestibility(IVDMD),in vitro crude protein digestibility(IVCPD),in vitro gross energy digestibility(IVGED)and EHGE were determined by biomimetic digestive system for monogastric animals.The results showed as follows:1)the dry matter content mean of copra meal was 93.56%,the crude protein content mean was 17.15%,the ether extract content mean was 22.39%,the gross energy mean was 23.20 MJ/kg,the crude fiber content mean was 16.20%,the neutral detergent fiber content mean was 43.06%,and the acid detergent fiber content mean was 29.38%.2)The total amino acid content mean of copra meal was 13.73%,among them,the methionine content mean was 0.23%,and the lysine content mean 0.70%.3)The calcium content of copra meal was low,and the mean was 673.69 mg/kg;the phosphorus content was high,and the mean was 5549.49 mg/kg.4)Using the biomimetic digestive system for monogastric animals simulated the digestion process of yellow feathered broiler chickens,determined the EHGE mean of copra meal was 12.05 MJ/kg,the IVDMD mean was 37.29%,the IVCPD mean was 70.81%,and the IVGED mean was 51.44%.There were significant positive correlations between the EHGE and IVGED with ether extract content of copra meal(P<0.05).It was concluded that the conventional nutrient contents of geogenic feed raw material copra meal in Hainan province are quite different.

关 键 词：椰子粕 常规养分 氨基酸 微量元素 仿生消化 

分 类 号：S816.4[农业科学—饲料科学]