豫北山区“粮—草—羊”高效平衡养羊模式现状
李海艳, 常守海, 宋天增
Present Situation of a High-efficient and Balanced Sheep Breeding Mode of ′Grain-grass-sheep′ in the Mountainous Areas of Northern Henan Province
LI Hai-yan, CHANG Shou-hai, SONG Tian-zeng
畜牧与饲料科学
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2019, (9): 70
-72
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DOI: 10.12160/j.issn.1672-5190.2019.09.014
