摘要
本文作者根据实地考察和查阅大量资料,对野牦牛的分布范围,数量及类型作了阐述。野牦牛仅分布于青藏高原4500米以上的高山寒漠,数量约2—4万头。野牦牛和家牦牛属于同种动物,论述了野牦牛的两个生态类型,祁连山型和昆仑山型。经八年试验研究证明,导入野牦牛血液明显提高了家牦牛生产性能。野血牦牛在活重、体格大小、增重速度、屠宰率、产奶量等方面,均比家牦牛高15%以上,为牦牛选育开辟了一条新途径。
The wild yark is restrictedly distributed in alpine meadow of Qinghai-Tibetan plateau over 4500m above sea level in China.Distribution,ecological types and population abundance of the wild yark in China are discussed according to field investigation and literature review in this paper.the amount of wild yark population size is estimated about 20000-40000 heads. Two ecological types can be identified one is found in Kunlun Mountain,the other in Qilian Mountain.The domestric yark is tamed from the wsald yark.Research resuahs thow that blood transfusion from wild yark can improve productive indexes of the domestic yarks.The body size and weight,body growth,and milk production of domestric yarks which were transferred wild yark blood cna be increased more than 15 percents.
出处
《动物学杂志》
CAS
CSCD
北大核心
1993年第4期41-45,共5页
Chinese Journal of Zoology
