Abstract

Suites of traits absent or not fully considered in many national cattle breeding objectives include animal health, feed intake complex, environmental footprint, and product quality. The objective of the present study was to put in place the necessary steps to generate genetic evaluations for a range of different health traits; these steps included the collection of data, data editing steps, generation of statistical models, estimation of variance components and validation of genetic evaluations. The traits focused on related to viral diseases, bacterial diseases, parasitic diseases and production diseases. Data used were obtained from nationally collected data by dairy and beef producers as well as abattoirs together with a research study which extensively phenotyped up to 11,000 dairy cows on 68 herds. Heritability estimates of the traits varied from 0.01 to 0.31; considerable exploitable genetic variation existed for all traits – the genetic standard deviation of the binary traits varied from 0.04 to 0.12 units. Keywords: health, disease, respiratory, bacterial, viral, production, parasiteauthor, guide

Donagh P Berry, Siobhan Ring, Ross Evans, Andrew Cromie, Alan Twomey

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume Electronic Poster Session - Biology - Disease Resistance 1, , 517, 2018
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