Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/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
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ISSN | 0304-4017 |
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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