1) Selection and protection of the breed
保种选育及利用
2) breed protection and selection
保种选育
1.
It gave discussions on the direction andtargets of breed protection and selection and the scale of stud cattle,It also put forward a series of technical measures such as planning a breed protection area, forming a breeding system with a fine breed as its center,strictly breeding and selecting,raising the goats sc.
本文介绍了成都麻羊品种特征、体型结构、生产性能及其产区概况,讨论了保种选育的方向、指标和种群建设规模;提出了规划保种区、建立良种繁育体系、组建保种核心群、严格选种选配、科学饲养、合理培育、健全卫生防疫制度等配套技术措施,以及强化管理、加强协作、扶持发展专业户、搞好技术培训、合理利用等组织措施。
6) category and selection principle
种类及选用原则
补充资料:东北平原农业气候资源利用(见农业气候资源利用)
东北平原农业气候资源利用(见农业气候资源利用)
默军爵攫戳猛罚胃植和l用2 iyuanl心yong 见农业气候资
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条