Macro- and micro-genetic environmental sensitivity for 400-day weight in Australian Angus

Author(s)
Madsen, M D
van der Werf, J H J
Borner, V
Clark, S
Publication Date
2021
Abstract
Paper presented by Mette Madsen
Abstract
<p>Genotype by environment interactions can be caused by both macro- and micro-genetic environmental sensitivity (GES ). In the current study, 400 day weight (400DW) measured on Australian Angus was analysed using a variability model and a reaction norm model to obtain estimates for genetic variation due to macro- and micro-GES. The results showed additive genetic variance for both macro- and micro-GES. Over the range of contemporary group means the macro-GES impacted the genetic variance and ranking of sires across environments. The presence of micro-GES indicated the possibility of selecting to reduce the variability of phenotypes, but further investigation into the consequences is needed.</p>
Citation
Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.24, p. 217-221
ISSN
1328-3227
Link
Publisher
Association for the Advancement of Animal Breeding and Genetics (AAABG)
Title
Macro- and micro-genetic environmental sensitivity for 400-day weight in Australian Angus
Type of document
Conference Publication
Entity Type
Publication

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