摘要
2002年夏季在内蒙古科左后旗的天然草场上,采用跟群放牧全日观察法,定量研究了自然放牧状态下成年科尔沁牛牧食行为。结果表明,科尔沁牛的平均采食时间为410.9±34.8min,反刍时间为4.2±8.2min,卧息时间为5.0±17.3min,站立时间为18.0±16.8min,游走时间为80.4±12.9min。平均采食量为8.10千克/头·天。选择采食性特征最明显的7、8月份进行的调查结果表明,放牧牛采食所涉及的牧草种类共有16种,其中7月份11种,8月份12种。
The grazing behavior of Kerqin cattle was researched with the whole day long eye observation method in the spring of 2002 at a natural pasture. The results showed that average time for foraging was 410.9±34.8 minutes, ruminating time was 4.2±8.2 minutes, resting time was 5.0±17.3 minutes, standing time was 18.0±16.8 minutes, and the time for wandering time was 80.4±12.9 minutes. The average ingestive intake was 8.10 kg/head·day. The research carried in July and August when the selective intake was most obvious, results showed that species of grass that grazing cows picked were totally 16 species, in which there were 11 species in July and 12 species in August.
出处
《家畜生态学报》
2005年第1期69-73,共5页
Journal of Domestic Animal Ecology
基金
国家重点基础研究规划发展项目(G2000018602)
"草地与农牧交错带生态系统重建机理及优化生态-生产示范"课题(G2000018606)经费资助。
