干旱区生态环境知识资源中心(Arid): Genetic and non-genetic factors affecting first parity growth, reproductive and lactation traits in Barbari goats under semi-intensive management in semi-arid region of India

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	Genetic and non-genetic factors affecting first parity growth, reproductive and lactation traits in Barbari goats under semi-intensive management in semi-arid region of India
	Singh, M. K.; Singh, S. K.; Dige, M. S.; Kumar, Akhilesh
通讯作者	Singh, MK (corresponding author), ICAR Cent Inst Res Goats, Mathura 281122, Uttar Pradesh, India.
来源期刊	INDIAN JOURNAL OF ANIMAL SCIENCES
ISSN	0367-8318
出版年	2021
卷号	91 期号:2 页码:128-136
英文摘要	Barbari is most preferred goat breed of commercial farmers in India and information on its first parity growth, reproduction and production traits are valuable for making present and future genetic progress of flock. Data for present study pertains to 2,554 kids, progeny of 227 sires and 1645 dam born during 2001 to 2019 at Central Institute for Research on Goats, Makhdoom, Mathura, Uttar Pradesh. The least squares means of body weight of kids at birth. 3, 6, 9 and 12 months of age were 1.69 +/- 0.02, 7.481-0.13, 11.45 +/- 0.21. 16.08 +/- 0.28 and 20.21 +/- 0.33 kg. respectively. Period, sex, type of birth, and weight of dam at kidding were significant sources of non-genetic variation affecting body weights. The least squares mean of weight at first conception, weight at first kidding, age at first conception. age at first kidding and first gestation period were 18.04 +/- 0.07 kg, 21.79 +/- 0.09 kg, 381.65 +/- 2.51 days, 523.23 +/- 2.52 days and 143.33 +/- 0.21 days. respectively. Period of birth was major source of variation though these traits were also significantly affected by season and type of birth. The least squares means of first lactation 90-days milk yield, 140-days milk yield, total Lactation period milk yield, first lactation Length. milk yield per day of first lactation length and milk yield per day of first kidding interval were 50.22 +/- 0.41 litre. 69.94 +/- 1.05 litre, 57.32 +/- 0.53 litre, 123.01 +/- 0.53 days, 48.91 +/- 0.35 litre and 19.39 +/- 0.22 litres, respectively. Period, season, type of kidding, age and weight of dam at kidding were significant sources of non-genetic variation affecting above lactation traits. The h(2) for growth and production traits were moderate whereas low to moderate for reproductive traits except weight at first conception and kidding which have moderate h(2) estimates. The genetic and phenotypic correlations among the growth traits at different ages were moderate to high (0.3 to 0.8). however decrease with distant ages. Very high genetic and phenotypic correlation estimates were obtained among lactation traits suggesting that judicious selection of animals' for any lactation traits would yield consistent genetic improvement in the other milk production traits in the flock. The economic traits which were significantly influenced by non-genetic factors with high magnitude need attention for strategic management interventions such as planned breeding of females to avoid kidding in adverse weather conditions, better attention in suckling of milk for kids born with low birth weight, hygiene of shed, adequate supplementation of concentrate ration to those kids which have less pre-weaning growth regardless of type of birth, better nutrition level to maiden goats before and after mating and extension of weaning age for triplets by 10-15 days to obtain higher post weaning weight gains, optimization of breeding weight at first mating and strategic supplementary concentrate feeding as per milk yield.
英文关键词	Barbari Body weight Goat Genetic parameters Milk yield Parity Post-weaning Pre-weaning Prolificacy Productivity litter size
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000684938300009
WOS关键词	BODY-WEIGHT ; JAMUNAPARI ; PERFORMANCE ; PARAMETERS ; KIDS ; SYSTEM
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/2XILL650/363577
作者单位	[Singh, M. K.; Singh, S. K.; Dige, M. S.; Kumar, Akhilesh] ICAR Cent Inst Res Goats, Mathura 281122, Uttar Pradesh, India; [Singh, S. K.] ICAR Directorate Knowledge Management Agr, New Delhi, India; [Dige, M. S.] ICAR Natl Bur Anim Genet Resources, Karnal, Haryana, India
推荐引用方式 GB/T 7714	Singh, M. K.,Singh, S. K.,Dige, M. S.,et al. Genetic and non-genetic factors affecting first parity growth, reproductive and lactation traits in Barbari goats under semi-intensive management in semi-arid region of India[J],2021,91(2):128-136.
APA	Singh, M. K.,Singh, S. K.,Dige, M. S.,&Kumar, Akhilesh.(2021).Genetic and non-genetic factors affecting first parity growth, reproductive and lactation traits in Barbari goats under semi-intensive management in semi-arid region of India.INDIAN JOURNAL OF ANIMAL SCIENCES,91(2),128-136.
MLA	Singh, M. K.,et al."Genetic and non-genetic factors affecting first parity growth, reproductive and lactation traits in Barbari goats under semi-intensive management in semi-arid region of India".INDIAN JOURNAL OF ANIMAL SCIENCES 91.2(2021):128-136.