干旱区生态环境知识资源中心(Arid): Effect of Calf Birth Weight on Milk Production of Holstein Dairy Cattle in Desert Climate

Arid

DOI	10.14269/2318-1265/jabb.v4n3p65-70
	Effect of Calf Birth Weight on Milk Production of Holstein Dairy Cattle in Desert Climate
	Rahbar, Rabie; Abdullahpour, Rohullah; Sadeghi-Sefidmazgi, Ali
通讯作者	Rahbar, R
来源期刊	JOURNAL OF ANIMAL BEHAVIOUR AND BIOMETEOROLOGY
ISSN	2318-1265
出版年	2016
卷号	4 期号:3 页码:65-70
英文摘要	The hypothesis in this study was that calf birth weight (CBW) would effect on cow's milk production. Data were collected from two commercial dairy milking 15,000 Holsteins in central region of Iran with desert climate from 2006 to 2012. Animals were enrolled at parturition until 7,737 calvings were available for analysis. Data consisted of on-farm measurements of calf birth weight and milk production, and data were analyzed using a multivariable regression model. Independent variables were parity, herd-year-season, calving interval, calving age, retained placenta, days open, dry period length, days in milk, linear and quadratic CBW. The mean CBW was 40.84 +/- 4.9 kg (SD) with a range of 20 to 60 kg. There was a trend for milk305 based on calf birth weight, i.e., the amount of milk305 of dam was significantly dependent on that weight of calf was born (P < 0.01). Cows with CBW between 20 and 25 kg had the lowest of milk production. By increasing of CBW range up to 40 and 45 kg, the trend of milk production increased and then decreasing trend observed. In conclusion, calf birth weight could be considered as an important trait in dairy cattle breeding programs in desert climate.
英文关键词	calf weight milk Holstein desert climate
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000379042100001
WOS关键词	BODY-WEIGHT ; COWS ; PERFORMANCE ; CALVES ; DYSTOCIA ; STILLBIRTH ; AGE ; ASSOCIATION ; SURVIVAL ; MATURITY
WOS类目	Agriculture, Dairy & Animal Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/331560
作者单位	[Rahbar, Rabie] Payame Noor Univ, Dept Agr, POB 19395-3697, Tehran, Iran; [Abdullahpour, Rohullah] Islamic Azad Univ, Dept Anim Sci, Qaemshahr Branch, Mazandaran, Iran; [Sadeghi-Sefidmazgi, Ali] Isfahan Univ Technol, Dept Anim Sci, POB 84156, Esfahan, Iran
推荐引用方式 GB/T 7714	Rahbar, Rabie,Abdullahpour, Rohullah,Sadeghi-Sefidmazgi, Ali. Effect of Calf Birth Weight on Milk Production of Holstein Dairy Cattle in Desert Climate[J],2016,4(3):65-70.
APA	Rahbar, Rabie,Abdullahpour, Rohullah,&Sadeghi-Sefidmazgi, Ali.(2016).Effect of Calf Birth Weight on Milk Production of Holstein Dairy Cattle in Desert Climate.JOURNAL OF ANIMAL BEHAVIOUR AND BIOMETEOROLOGY,4(3),65-70.
MLA	Rahbar, Rabie,et al."Effect of Calf Birth Weight on Milk Production of Holstein Dairy Cattle in Desert Climate".JOURNAL OF ANIMAL BEHAVIOUR AND BIOMETEOROLOGY 4.3(2016):65-70.