1 Department of Molecular Biology and Genetics - Center for Quantitative Genetics and Genomics, Department of Molecular Biology and Genetics, Science and Technology, Aarhus University2 Animal Breeding and Genomics Centre, Wageningen UR Livestock Research3 Dept. of Environment and Primary Industries & Dairy Futures CRC4 Department of Animal Science, Iowa State University5 Animal & Grassland Research and Innovation Centre6 Animal and Veterinary Sciences, SRUC7 CRV BV8 DaireyNZ9 GFRC, Agriculture and Agri-Food Canada & Canadian Dairy Network10 Department of Agricultural, Food and Nutritional Science, University of Alberta11 DairyCo - Agriculture and Horticulture Development Board12 Institute of Animal Breeding and Husbandry, Christian-Albrechts-University13 Spanish Confereration of Holstein Associations14 The Danish Agricultural Advisory Centre15 Department of Molecular Biology and Genetics - Center for Quantitative Genetics and Genomics, Department of Molecular Biology and Genetics, Science and Technology, Aarhus University
A Position Paper frm gDMI Breeding Goal Discussions
The widespread use of genomic information in dairy cattle breeding programs has opend up the possibility to select for novel traits, especially for traits that are traditionally difficult to record in a progeny testing scheme. Feed intake and efficiency is such a difficult to measure trait. In February 2013, the co-authors discussed how information on DMI should be incorporated in the breeding decisions. The aim of this paper is to present the overall discussion and main positions taken by the group on four topics related to feed efficiency: i) breeding goal definition; ii) biological variation in feed utilisation; iii) optimal recording of feed intake and predictor traits; and iv) unwanted correlated responses and validation.
Proceedings of the 2013 Interbull Meeting: Interbull Bulletin, 2013, p. 15-22