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VetMed Resource

Veterinary information to support practice, based on evidence and continuing education

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Abstract

Genetic evaluation of female fertility in Danish, Finnish, and Swedish dairy cows was updated in 2015 to multiple-trait animal model evaluation, where heifer and cow fertility up to third parity are considered as separate traits. A model for conception rate was also developed, which required...

Author(s)
Muuttoranta, K.; Tyrisevä, A. M.; Mäntysaari, E. A.; Pösö, J.; Aamand, G. P.; Lidauer, M. H.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 9, pp 8184-8196
Abstract

Three random regression models were developed for routine genetic evaluation of Danish, Finnish, and Swedish dairy cattle. Data included over 169 million test-day records with milk, protein, and fat yield observations from over 8.7 million dairy cows of all breeds. Variance component analyses...

Author(s)
Lidauer, M. H.; Pösö, J.; Pedersen, J.; Lassen, J.; Madsen, P.; Mäntysaari, E. A.; Nielsen, U. S.; Eriksson, J. Ǻ.; Johansson, K.; Pitkänen, T.; Strandén, I.; Aamand, G. P.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2015, 98, 2, pp 1296-1309