Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/23433
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.pdfOpen Access Link
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
http://www.aaabg.org/aaabghome/
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Conference Publication

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