遗传学和基因组学改变牛奶成分.pdf

1、2343.103.303.503.703.904.104.304.502015 2016 2017 2018 2019 2020 2021%Fat%Pro700750800850900950100010501100115012002015 2016 2017 2018 2019 2020 2021pounds Fatpounds ProDr.Tom Lawlor,Holstain Association USA678Sources:Council on Dairy Cattle Breeding and National Association of Animal Breeders.Prese

2、ntation by Corey Geiger,CoBank.Animals Genotyped in National Cooperator Database0M2M4M6M8M10M200820102012201420162018202020222024910Sources:George Wiggans,Council on Dairy Cattle Breeding.Presentation by Corey Geiger,CoBank.Average Net Merit$1100$900$700$500$300$100-$100-$300-$5002000200220042006200

3、82010201220142016201820202022Year bull entered AI serviceAverage gain:$13.50/yearAverage gain:$36.90/yearAverage gain:$83.33/year0501001502002503003502015201620172018201920202021US PopulationGeneticsManagement0501001502002503003502015201620172018201920202021Oakfield Corners DairyGeneticsManagementDr

4、.Tom Lawlor,Holstain Association USA3.83.944.14.24.34.44.54.62015201620172018201920202021Oakfield Corners DairyGeneticsManagement3.83.944.14.24.34.44.54.62015201620172018201920202021US PopulationGeneticsManagementDr.Tom Lawlor,Holstain Association USA0204060801001201401601802002015201620172018201920

5、202021Oakfield Corners DairyGeneticsManagement0204060801001201401601802002015201620172018201920202021US PopulationGeneticsManagementDr.Tom Lawlor,Holstain Association USA3.13.153.23.253.33.353.43.452015201620172018201920202021Oakfield Corners DairyGeneticsManagement3.13.153.23.253.33.353.43.45201520

6、1620172018201920202021US PopulationGeneticsManagementDr.Tom Lawlor,Holstain Association USA15Sources:Paul Van Raden,USDA Animal Genomics Improvement Laboratory(AGIL).Presentation by Corey Geiger,CoBank.1718By LACT Pct Count Av PCTFAv PCTS13