干旱区生态环境知识资源中心(Arid): Production evaluation of Booroola fecundity (FecB) gene introgressed Avishaan sheep in semi-arid tropics of India

Arid

DOI	10.1016/j.smallrumres.2022.106720
	Production evaluation of Booroola fecundity (FecB) gene introgressed Avishaan sheep in semi-arid tropics of India
	Sharma, R. C.; Gowane, G. R.; Kumar, Rajiv; Kumar, Arun; Misra, S. S.; Mallick, P. K.
通讯作者	Sharma, RC
来源期刊	SMALL RUMINANT RESEARCH
ISSN	0921-4488
EISSN	1879-0941
出版年	2022
卷号	212
英文摘要	The breeding goal for evolving of Avishaan sheep was to develop a sheep strain with high prolificacy, more live weight, better survival and mothering ability. The introgression of FecB gene from the small sized Garole' sheep breed of Sunderban region in eastern India into the non-prolific monotocous sheep Malpura in the semi-arid region of Rajasthan, was attempted, followed by back-crossing with Malpura ewes. The resulted genotype was used as male line and crossed with heavy weight Patanwadi sheep, known for its higher milk yield. The obtained triple breed cross sheep was further selected using marker assisted selection using FecB gene and higher growth for obtaining three breed cross Avishaan' sheep that fulfils the breeding goal. The average live weight for Avishaan lambs at birth, 3, 6 and 12 months were 2.61 +/- 0.03, 14.92 +/- 0.20, 23.48 +/- 0.31 and 31.48 +/- 0.46 kg, respectively. The sheep strain is highly prolific and has shown improvement in multiple births from 22.2% to 74.4% over a period of nine years. High ewe productivity efficiency (EPE) of 22.19 kg for litter weight at 3 month was observed in Avishaan ewes due to higher prolificacy, lower lamb mortality and availability of sufficient milk from the dam. Avishaan excelled local monotocus Malpura sheep by 45% for EPE. The genetic analysis revealed that the heritability (h2) for live weight traits was moderate in Avishaan sheep. The h2 for 6 month live weight was 0.36 +/- 0.13, indicating scope of further selection for growth in lambs. The development of the Avishaan strain was a successful venture, however, further efforts are required to improve the growth potential for harvesting more live weight per unit of sheep.
英文关键词	Avishaan FecB gene Garole Marker assisted selection Mutton Production Sheep Breeding
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000806357100010
WOS关键词	(CO)VARIANCE COMPONENTS ; GROWTH TRAITS ; PROLIFIC GAROLE ; MALPURA SHEEP ; LITTER SIZE ; EFFICIENCY ; PARAMETERS ; LAMBS ; EWES ; MUTATION
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/2XILL650/394498
推荐引用方式 GB/T 7714	Sharma, R. C.,Gowane, G. R.,Kumar, Rajiv,et al. Production evaluation of Booroola fecundity (FecB) gene introgressed Avishaan sheep in semi-arid tropics of India[J],2022,212.
APA	Sharma, R. C.,Gowane, G. R.,Kumar, Rajiv,Kumar, Arun,Misra, S. S.,&Mallick, P. K..(2022).Production evaluation of Booroola fecundity (FecB) gene introgressed Avishaan sheep in semi-arid tropics of India.SMALL RUMINANT RESEARCH,212.
MLA	Sharma, R. C.,et al."Production evaluation of Booroola fecundity (FecB) gene introgressed Avishaan sheep in semi-arid tropics of India".SMALL RUMINANT RESEARCH 212(2022).