Monitoring of traits for yak and yak hybrids

摘要

This paper briefly reviews breeding systems used for domestic yak and for yak hybrids. Traits for production and performance commonly selected by herders for breeding are highlighted. A simple recording system is then proposed that would allow breeding activities to be jointly monitored by herders and extension workers to reduce the presence of less desirable traits in herds and improve overall production and performance. The system would also permit basic information to be gathered on herd structures which can assist researchers and livestock extension workers to determine the extent of inbreeding within regions or areas of a country and better plan for appropriate interventions.