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|Title:||Accommodating Variable Disease Challenge on Breeding Value Prediction for Sires - Using Footrot as an Example||Contributor(s):||Walkom, Samuel (author); Ferguson, M B (author); Gibson, W (author); Brown, Daniel (author); Bunter, Kim L (author)||Publication Date:||2017||Open Access:||Yes||Handle Link:||https://hdl.handle.net/1959.11/23433||Open Access Link:||http://agbu.une.edu.au/AAABG%202017/136Walkom22581.pdf||Abstract:||Footrot is a highly contagious hoof disease of sheep, the expression of which depends on environmental conditions and the presence of infective strains of bacteria. Footrot scored from field exposure is, therefore, a potentially difficult trait to analyse across time and production environments. This study explores the use of pre-analysis transformation techniques to account for the disease incidence and pattern of scores obtained, using footrot as an example. A biological transformation, where the phenotypes were transformed to a similar incidence level based on a nonlinear transition of scores over time produced the highest rank correlation of the sire's breeding values across challenges compared to more traditional statistical transformation techniques. The results suggest that using a transformation based on biological information is likely to improve the estimation of breeding values for footrot.||Publication Type:||Conference Publication||Conference Name:||22nd Conference of the Association for the Advancement of Animal Breeding and Genetics, Townsville, Australia, 2nd - 5th July, 2017||Conference Details:||22nd Conference of the Association for the Advancement of Animal Breeding and Genetics, Townsville, Australia, 2nd - 5th July, 2017||Source of Publication:||Proceedings of the Twenty-second (22nd) Conference of the Association for the Advancement of Animal Breeding and Genetics, v.22, p. 581-584||Publisher:||AAABG: Association for the Advancement of Animal Breeding and Genetics||Place of Publication:||Fitzroy, Australia||ISSN:||1328-3227||Field of Research (FOR):||070201 Animal Breeding||Socio-Economic Outcome Codes:||830310 Sheep - Meat
830311 Sheep - Wool
|Peer Reviewed:||Yes||HERDC Category Description:||E1 Refereed Scholarly Conference Publication||Other Links:||http://agbu.une.edu.au/AAABG_2017.html
|Appears in Collections:||Animal Genetics and Breeding Unit (AGBU)|
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