Dairy Cattle Breeding: Contributions of Research on Field Data

摘要: Abstract Papers about dairy cattle breeding published in the Journal of Dairy Science from 1960 through 1975 were categorized according to whether data came institutional herds or field collection and also research was done with support a regional project. Most project papers involved data. The vast majority nonproject made use Nearly all classified as theoretical associated recommendations. major impact projects has been improved genetic evaluation for production development optimum selection programs. Institutional have had more indirect by testing such plans crossbreeding inbreeding which if implemented without would reduced income. Additional federal state funds should be appropriated analyses increased emphasis on statistical theory well efficient computing strategies. Experimental continue supported management health illustrate economic validity recommended procedures.