Genetic resistance to Heterakis gallinarum in two chicken layer lines following a single dose infection
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- 作者：M. Gauly ; A. Kanan ; H. Br ; t ; S. Weigend ; E. Moors ; G. Erhardt
- 关键词：Heterakis gallinarum ; Chicken-Nematoda ; Heritability ; Genetic resistance
- 刊名：Veterinary Parasitology
- 出版年：2008
- 出版时间：1 August 2008
- 年：2008
- 卷：155
- 期：1-2
- 页码：74-79
- 全文大小：129 K
文摘
Groups of White Leghorn and New Hampshire male and female chicks were reared under helminth-free conditions and divided into two groups at an age of 8 weeks. One group was artificially infected with 100 embryonated Heterakis gallinarum eggs, while the other group was kept as uninfected control. After 8 weeks all animals were harvested and worm burden was established. Maximum of 60 worms per bird randomly selected were measured for length. Body weights were recorded at 8 and 16 weeks of age. Total worm burden was significantly (P < 0.0001) higher in infected males than in infected females. Furthermore, White Leghorns showed a significantly (P = 0.011) higher number of worms when compared with New Hampshire animals.