气候变化领域集成服务门户(CCPortal): Postpartum oestrous cycling resumption of yak cows following different calf weaning strategies under range conditions

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DOI	10.1111/asj.13097
	Postpartum oestrous cycling resumption of yak cows following different calf weaning strategies under range conditions
	Liu, Peipei; Dong, Quanmin; Liu, Shujie; Degen, Allan; Zhang, Jiaojiao; Qiu, Qiang; Jing, Xiaoping; Shang, Zhanhuan; Zheng, Wenming; Ding, Luming
通讯作者	Ding, LM (通讯作者)
发表日期	2018
ISSN	1344-3941
EISSN	1740-0929
起始页码	1492
结束页码	1503
卷号	89 期号:10
英文摘要	Early weaning can improve body condition and reproductive performance of cows. The objectives of this study were to examine and compare oestrous cycling resumption, behaviour and blood parameters of yak cows following four different strategies of calf weaning. Twenty-six yak cows (4-8years) and their calves (94.3 +/- 2.4days) were studied in which calves were: weaned naturally with free access to their mothers (NW; n=13); weaned abruptly and separated permanently from their mothers (PW; n=5); separated temporarily from their mothers for 15days (TW; n=5); and fitted with nose plates for 15days, but allowed free access to their mothers (NP; n=3). Yak cows with sucking calves (NW) spent more time grazing in the cold season (from d 39 to 84). Based on serum progesterone concentrations, none of nine NW yak cows resumed oestrous cycling during the study, while seven of nine yak cows with weaned calves resumed cycling (3/3 for PW; 2/3 for TW; and 2/3 for NP yaks). We concluded that early weaning improved postpartum reproductive performance of yak cows on the Qinghai-Tibetan plateau and that abrupt and permanent weaning was an appropriate strategy.
关键词	QINGHAI-TIBETAN PLATEAU PRIMIPAROUS BEEF-COWS BODY CONDITION REPRODUCTIVE-PERFORMANCE SUCKLING RESTRICTION POEPHAGUS-GRUNNIENS OVULATION BEHAVIOR CALVES NUTRITION
英文关键词	grazing behaviour; grazing management; reproduction
语种	英语
WOS研究方向	Agriculture
WOS类目	Agriculture, Dairy & Animal Science
WOS记录号	WOS:000446009400014
来源期刊	ANIMAL SCIENCE JOURNAL
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259285
推荐引用方式 GB/T 7714	Liu, Peipei,Dong, Quanmin,Liu, Shujie,et al. Postpartum oestrous cycling resumption of yak cows following different calf weaning strategies under range conditions[J]. 中国科学院青藏高原研究所,2018,89(10).
APA	Liu, Peipei.,Dong, Quanmin.,Liu, Shujie.,Degen, Allan.,Zhang, Jiaojiao.,...&Ding, Luming.(2018).Postpartum oestrous cycling resumption of yak cows following different calf weaning strategies under range conditions.ANIMAL SCIENCE JOURNAL,89(10).
MLA	Liu, Peipei,et al."Postpartum oestrous cycling resumption of yak cows following different calf weaning strategies under range conditions".ANIMAL SCIENCE JOURNAL 89.10(2018).