气候变化领域集成服务门户(CCPortal): Genetic parameters for ewe lifetime productivity traits in Central Anatolian Merino sheep

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DOI	10.1016/j.smallrumres.2024.107235
	Genetic parameters for ewe lifetime productivity traits in Central Anatolian Merino sheep
	Kizilaslan, Mehmet; Arzik, Yunus; Behrem, Sedat
发表日期	2024
ISSN	0921-4488
EISSN	1879-0941
起始页码	233
卷号	233
英文摘要	Rapidly increasing population size, recent breaks in production and supply chains, due to pandemics, and those further expected because of climate change emphasize the compelling importance of animal productivity. Traits associated with the productivity of ewes have a direct impact on the overall productivity, profitability and efficiency of sheep farms. Therefore, the objective of the current study was to estimate the variance components, heritabilities as well as genetic and phenotypic correlations, for traits associated with the lifetime productivity of Central Anatolian Merino ewes. Birth and weaning records of lambs for each ewe as well as environmental factors such as sex and birth type were utilized for deriving ewe lifetime productivity traits. Genetic parameter estimations involved observations from 3101 Central Anatolian Merino ewes, encompassing mean and total lamb birth weight per ewe (MBW and TBW), mean and total lamb weaning weight per ewe (MWW and TWW), and the mean and total number of lambs weaned (MNLW and TNLW). This analysis utilized a pedigree comprising 13229 animals. Average Information Restricted Maximum Likelihood (AIREML) based Animal Linear Mixed Model estimations for the decomposition of (co)variance components were implemented based on pedigree-derived numerator relationship matrix by also accounting for the number of parities as a fixed factor. Low to moderate heritability estimates, ranging between 0.29 and 0.42, were observed for the lifetime productivity traits of the breed. A wide range of genetic and phenotypic correlations (between -0.56 and 0.99) was observed among the traits of interest. The outcomes of the study are anticipated to significantly enhance the global sheep production systems by uncovering the essential parameters for incorporating ewe's lifetime reproductive performance and productivity into the selection indices. This will also benefit Central Anatolian Merino farmers, who form a large proportion of sheep producers in Turkey.
英文关键词	Ewe productivity traits; Genetic parameters; Heritability; Genetic correlation; Sheep breeding
语种	英语
WOS研究方向	Agriculture
WOS类目	Agriculture, Dairy & Animal Science
WOS记录号	WOS:001207845200001
来源期刊	SMALL RUMINANT RESEARCH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/303492
作者单位	Aksaray University
推荐引用方式 GB/T 7714	Kizilaslan, Mehmet,Arzik, Yunus,Behrem, Sedat. Genetic parameters for ewe lifetime productivity traits in Central Anatolian Merino sheep[J],2024,233.
APA	Kizilaslan, Mehmet,Arzik, Yunus,&Behrem, Sedat.(2024).Genetic parameters for ewe lifetime productivity traits in Central Anatolian Merino sheep.SMALL RUMINANT RESEARCH,233.
MLA	Kizilaslan, Mehmet,et al."Genetic parameters for ewe lifetime productivity traits in Central Anatolian Merino sheep".SMALL RUMINANT RESEARCH 233(2024).