放牧率和放牧时期对牛采食行为的影响  

Effects of Stocking Rate and Grazing Period on Foraging Behavior of Cattle

作　　者：管刚 白哈斯 程利 常金财 李秋荣 魏红 GUAN Gang;BAI Ha-si;CHENG Li;CHANG Jin-cai;LI Qiu-rong;WEI Hong(Hulunbuir Forestry and Grassland Science Institute of inner Mongolia,Inner Mongoulia Hulunbuir 021000,China)

机构地区：[1]内蒙古呼伦贝尔市林业和草原科学研究所,021000

出　　处：《当代畜牧》2022年第3期1-4,共4页Contemporary Animal Husbandry

基　　金：国家重点基础研究规划发展项目(2000018602)。

摘　　要：笔者通过对科尔沁草甸草地进行受控放牧试验,研究了牛的采食行为。结果表明,采食量、进食速度和每口采食量随季节推移不断增加。随着放牧率的提高,每步口数基本呈增加趋势,采食量逐渐降低。采食量与每口采食量、进食速度呈极显著正相关关系,与采食速度呈显著正相关关系,与每步口数呈显著负相关关系。The amount of intake,the eating speed and intake per bite would increase with the process of the seasons’passing on.Along with the increase of the grazing rate,the bites per step would basically rise And the amount of intake would gradually depress.The intake was significantly positively correlated with the amount of intake per bite and the intake rate,significantly positively correlated with the eating speed,and negatively correlated with the bites per step.

关 键 词：受控放牧 进食速度 每口采食量 草层高度 地上生物量 

分 类 号：S823.4[农业科学—畜牧学]