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Genotype Environment Interaction between Organic and Conventional Dairy Production

Nauta, MSc W.J.; Brascamp, Prof. E.W.; Veerkamp, Dr. R.F. and Bovenhuis, Dr. H. (2006) Genotype Environment Interaction between Organic and Conventional Dairy Production. Poster at: Joint Organic Congress, Odense, Denmark, May 30-31, 2006.

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Summary

Abstract – Due to genotype by environment interaction (GxE), conventional bulls might not be suitable for organic production circumstances. Therefore, lactation records from Holstein cows on organic and conventional farms were used to estimate the magnitude of GxE between organic and conventional production circumstances. GxE was quantified by estimating the genetic correlations between production traits in both environments. Genetic correlations for milk and protein yield were between 0.71 and 0.80 and found to be significantly different from unity. For fat yield the correlations were close to 0.90 and not significantly different from unity. It can be concluded that breeding values for yield traits should be adapted to organic production so that the production level of cows fits better to the organic environment resulting in healthier dairy cows.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Subjects: Animal husbandry > Breeding and genetics
Research affiliation: International Conferences > 2006: Joint Organic Congress > Theme 7: Development of livestock production systems
Deposited By: Nauta, MSC Wytze J.
ID Code:7387
Deposited On:10 May 2006
Last Modified:12 Apr 2010 07:32
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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