全面介绍了中甸牦牛的产地自然生态环境、品种形成、外貌特征、适应性和生产性能。
This paper introduces the natural ecology condition of original place, breed formation, appearence, character, adaptability and production performance of Zhongdian yak.
辽东白嗉鸭是近年来被发现的一个具有独特的外貌特征和生产性能，深受农户喜爱的地方鸭种。
White chest duck, a local species discovered in recent years, is favored greatly by most farmers for its special characteristic in appearance and production performance.
植物构筑特征可以反映植物的生产性能。
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