Breech strike indicator traits for Merino sheep in non - seasonal rainfall environments
نویسندگان
چکیده
T.L. Bird-Gardiner, D.J. Brown, J.L. Smith, S.I. Mortimer G. Refshauge. Cooperative Research Centre for Sheep Industry Innovation, UNE, Armidale, Australia, University of New England, Armidale, Australia, Animal Genetics and Breeding Unit, UNE Armidale, Australia, CSIRO Animal, Food and Health Sciences, Armidale, Australia, NSW Department of Primary Industries, Trangie, Australia, NSW Department of Primary Industries, Cowra, Australia
منابع مشابه
Genetic Analysis of Absence of Breech Strike and Breech Strike Indicator Traits in South African Merino Sheep
The sheep blowfly is an economically important ectoparasite of sheep, and impacts on animal health and welfare under pastoral conditions in South Africa. The absence of flystrike in the breech (ABS) was recorded in 2198 Merino hoggets on the Tygerhoek Research Farm. This trait was analysed together with dag score (DS; n=1623); neck wrinkle score (NWS; n=2162); midrib wrinkle score (MWS; n=2162)...
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Fly strike in sheep has been estimated to cost the Australian sheep industry approximately $280m dollars annually (Sackett et al. 2006) as a result of sheep losses, cost of treatment and loss of wool and carcase production and value. Historically Australian sheep producers have surgically removed skin from around the tail (mulesing) to help avoid fly strike. Although this has proved highly succ...
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Field studies were conducted in Australia to determine the efficacy of CLiK® Spray-On (50 g/L dicyclanil) in protecting unmulesed sheep from naturally occurring blowfly strike. Unmulesed sheep were treated on day 0 and inspected for flystrike at defined intervals thereafter. Any strikes detected were documented and resolved with a flystrike dressing. In the interest of animal welfare, untreated...
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Domestication and selection are processes that conserve the pattern of genetic diversities between and within populations. Identification of genomic regions that are targets of selection for phenotypic traits is one of the main aims of research in animal genetics. An approach for identifying divergently selected regions of the genome is to compare FST values among loci to estimate the genetic v...
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