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

Animal Husbandry and Feed Science . 2019, (9): 70 -72 . DOI: 10.12160/j.issn.1672-5190.2019.09.014