Is it feasible to select humid sub-tropical Merino sheep for faecal egg counts?
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- 作者：Magda Vieira Benavidesa ; magda.benavides@embrapa.br" class="auth_mail" title="E-mail the corresponding author ; Carlos José ; Hoff de Souzaa ; José ; Carlos Ferrugem Moraesb ; Maria Elisabeth Aires Bernec
- 关键词：Host resistance ; Gastrointestinal parasite infection ; Genetic (co)variance estimates ; Sheep production traits ; Sheep selection
- 刊名：Small Ruminant Research
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：137
- 期：Complete
- 页码：73-80
- 全文大小：618 K
文摘
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Faecal egg count (FEC) in Merinos raised in humid sub-tropic environments is a highly variable and moderately heritable trait.
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FEC is negatively correlated with hogget body weight, and negligibly correlated to wool production traits, mainly wool weights and mean fibre diameter.
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This indicates selection for low FEC lambs is expected to increase hogget weights and not to compromise wool production traits.