自然感染捻转血矛线虫的黑孟加拉山羊的抗性变异性。
Variability of resistance in Black Bengal goats naturally infected with Haemonchus contortus.
作者信息
Kumar Ratnesh, Ranjan Sanjeev, Vishnu P Guru, Negi Mamta, Senapati P K, Charita V Gnani
机构信息
Department of Animal Genetics and Breeding, West Bengal University of Animal and Fishery Sciences, Kolkata, 700037 India.
Division of Animal Genetics, Indian Veterinary Research Institute, Izatnagar, Bareilly, 243122 Uttar Pradesh India.
出版信息
J Parasit Dis. 2015 Mar;39(1):76-9. doi: 10.1007/s12639-013-0282-9. Epub 2013 Mar 27.
A total 290 Black Bengal goats (6 buck, 109 doe and 175 kids born from 11 sires) were studied to evaluate the variability of resistance in Black Bengal goats naturally infected with Haemonchus contortus. The variability of resistance in Black Bengal goat was studied for both genetic and non-genetic factors like village, sex, age dam, sire, dam resistance group and offspring resistance group. Male kids have slightly higher resistance than female kids although it was not significant. Resistance of kids was increased as age increases and kid population showed significantly different resistance status among the offspring resistant groups. The doe population showed significantly different LEPG as per the resistance group in all the collections. The present study found that the resistance of kids under sire were varied significantly and observed that the kids under sire 1, 6-8 were significantly more resistant than the kids of the sire 2, 5 and 11 in 3rd collection and it is also noticed that maternal genetic effect has a very little impact on resistance of kids. Males (buck) were most resistant and the kids were least resistant and the resistance of dam was in between the male and kids population.
共研究了290只黑孟加拉山羊（6只公羊、109只母羊和来自11只公羊的175只羔羊），以评估自然感染捻转血矛线虫的黑孟加拉山羊的抗性变异性。研究了黑孟加拉山羊抗性的变异性，涉及村庄、性别、母羊年龄、公羊、母羊抗性组和后代抗性组等遗传和非遗传因素。雄性羔羊的抗性略高于雌性羔羊，尽管差异不显著。羔羊的抗性随年龄增长而增加，且在后代抗性组中，羔羊群体表现出显著不同的抗性状态。在所有采集样本中，母羊群体根据抗性组显示出显著不同的每克粪便虫卵数（LEPG）。本研究发现，不同公羊所产后代羔羊的抗性差异显著，观察到在第三次采集时，公羊1、6 - 8所产后代羔羊的抗性显著高于公羊2、5和11所产后代羔羊，并且还注意到母体遗传效应对羔羊抗性的影响非常小。雄性（公羊）抗性最强，羔羊抗性最弱，母羊的抗性介于雄性和羔羊群体之间。
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