Arid
DOI10.1016/j.vetpar.2011.03.005
Exploring the genetic resistance to natural gastrointestinal nematode infection in Indian goats
Rout, P. K.1,2; Chauhan, K. K.3,4; Matika, O.2; Bishop, S. C.2
通讯作者Rout, P. K.
来源期刊VETERINARY PARASITOLOGY
ISSN0304-4017
出版年2011
卷号180期号:3-4页码:315-322
英文摘要

The present study investigated the genetic component of host resistance to gastrointestinal nematode infections in two goat breeds in a semi-arid climatic region of India. The study was carried out on 888 animals belonging to two goat breeds. Live weight, faecal egg counts (FEC) and packed cell volume (PCV) following natural parasite challenge were measured at 3, 6, 9 and 12 months of age over a 3-year period. Pedigree relationships between goats extending back 3 generations were available. The study estimated the heritabilities of indicator traits (FEC and PCV) in goats and also quantified relationships between indicator traits and growth traits at the genetic, phenotypic and environmental level. It also provided an insight for the inclusion of genetic information on resistance to nematode infection into breeding programmes. The heritabilities of the indicator traits were low to moderate in this population. Genetic correlations between FEC at 6.9 and 12 months of age were strong (approaching unity) indicating that the trait may be controlled by same genes at these different ages. The genetic correlation between FEC and PCV from 6 months of age onwards was negative and moderate to strong. Correlations between FEC and growth traits tended to be negative. Selection index modeling investigated the use of FEC. PCV and bodyweight in selection schemes. Selection based on the measurements at 9 months of age was proposed as a means of improving productivity as well as reducing pasture contamination, thereby enhancing sustainable livestock production. (C) 2011 Elsevier B.V. All rights reserved.


英文关键词Goat Faecal egg count Packed cell volume Genetic parameters Nematodes Semiarid Selection index
类型Article
语种英语
国家India ; Scotland
收录类别SCI-E
WOS记录号WOS:000294094400023
WOS关键词HAEMONCHUS-CONTORTUS INFECTION ; EAST-AFRICAN GOATS ; EGG COUNT ; DISEASE RESISTANCE ; SUBHUMID TROPICS ; PARASITES ; PARAMETERS ; BARBARI ; LAMBS ; SHEEP
WOS类目Parasitology ; Veterinary Sciences
WOS研究方向Parasitology ; Veterinary Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/170776
作者单位1.Cent Inst Res Goats, Mathura 281122, UP, India;
2.Univ Edinburgh, Roslin Inst, Royal Dick Sch Vet Studies, Roslin EH25 9RG, Midlothian, Scotland;
3.DUVASU, Coll Vet Sci, Mathura, Uttar Pradesh, India;
4.DUVASU, AH, Mathura, Uttar Pradesh, India
推荐引用方式
GB/T 7714
Rout, P. K.,Chauhan, K. K.,Matika, O.,et al. Exploring the genetic resistance to natural gastrointestinal nematode infection in Indian goats[J],2011,180(3-4):315-322.
APA Rout, P. K.,Chauhan, K. K.,Matika, O.,&Bishop, S. C..(2011).Exploring the genetic resistance to natural gastrointestinal nematode infection in Indian goats.VETERINARY PARASITOLOGY,180(3-4),315-322.
MLA Rout, P. K.,et al."Exploring the genetic resistance to natural gastrointestinal nematode infection in Indian goats".VETERINARY PARASITOLOGY 180.3-4(2011):315-322.
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