湿贮玉米体外发酵粗蛋白、干物质及中性洗涤纤维降解率变化的研究  

Study on changes of degradation rate of crude protein,dry matter and neutral detergent fiber by in vitro fermentation of wet-stored maize

作　　者：丛树发[1] 夏炎[1] 丛硕 马广权 葛鹏缘 李伟[1] Cong Shufa;Xia Yan;Cong Shuo;Ma Guangquan;Ge Pengyuan;Li Wei(Animal Husbandry and Veterinary Research Institute,Heilongjiang Academy of Agricultural and Reclamation Sciences,Heilongjiang Harbin 150038;Shanghai Guanpeng Feed Technology Co.,Ltd.,Shanghai 200333;Heilongjiang Mudanjiang Agricultural Reclamation Qianmu Dairy Farm,Heilongjiang Jixi 158300;Heilongjiang Province Mudanjiang Agricultural Reclamation Longsheng Dairy Cattle Breeding Professional Cooperative,Heilongjiang Jixi 158400)

机构地区：[1]黑龙江省农垦科学院畜牧兽医研究所,黑龙江哈尔滨150038 [2]上海冠鹏饲料科技有限公司,上海200333 [3]黑龙江省牡丹江农垦千牧奶牛养殖厂,黑龙江鸡西158300 [4]黑龙江省牡丹江农垦隆盛奶牛养殖专业合作社,黑龙江鸡西158400

出　　处：《现代畜牧兽医》2022年第10期15-18,共4页Modern Journal of Animal Husbandry and Veterinary Medicine

基　　金：财政部和农业农村部现代农业产业技术体系(CARS-36);黑龙江垦区规模化奶牛场高产增效关键技术应用研究(HKKY190301-01)。

摘　　要：试验利用体外发酵培养法对同一地区6个不同牧场的高水分湿贮玉米进行体外发酵培养,测定其粗蛋白(CP)、干物质(DM)和中性洗涤纤维(NDF)降解率等代谢参数指标。结果显示:CP降解率按照大小顺序排列为1>2>4>5>6>3,数值在24.29%~45.61%之间,各牧场间差异极显著(P<0.01)。DM降解率的按照大小顺序排列为1>5>4>3>2>6,数值在17.80%~31.65%之间,各牧场间差异不显著(P>0.05)。NDF降解率按照大小顺序排列为:5>2>4>6>3>1,数值在16.46%~47.87%之间,各牧场间差异极显著(P<0.01)。研究表明,同一地区的6个不同牧场湿贮玉米CP和NDF降解率存在极显著差异,DM降解率差异不显著。In the experiment,high moisture wet storage corn from six different pastures in the same area was cultured by in vitro fermentation,and the metabolic parameters such as crude protein(CP),dry matter(DM)and neutral detergent fiber(NDF)degradation rate were measured.The results show that the degradation rates of CP were ranked as 1>2>4>5>6>3,the values ranged from 24.29%~45.61%,and the difference among the pastures was extremely significant(P<0.01).The order of DM degradation rates was 1>5>4>3>2>6,the values ranged from 17.80%~31.65%,and there was no significant difference among the pastures(P>0.05).The degradation rates of NDF were ranked as follows:5>2>4>6>3>1,the values ranged from 16.46%~47.87%,and the difference among the pastures was extremely significant(P<0.01).The study indicates that there were significant differences in CP and NDF degradation rates of wet stored corn in six different pastures in the same area,but there was no significant difference in DM degradation rates.

关 键 词：湿贮玉米 体外发酵 CP降解率 DM降解率 NDF降解率 

分 类 号：S816[农业科学—饲料科学]