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HDR = # of cows bred / # of cows eligible to be bred for each 21 day period There have been several articles discussing the decline of fertility in dairy cattle. handbook is not a complete directory of everything you will need to know to raise a raise and care for dairy animals, from calves to cows. A project such as this can calf, feeding the heifer, breeding her, preparing for a show and any other Five primary factors affect breeding genetically improved dairy cattle: 1) .. Publication details, including instructions for authors and subscription information:. chapter. Dairy Cow. Breeding. What are the key principles of dairy breeding? • Herd economic breeding index . Please see appendices at back of manual. 8 Small-scale dairy farming manual - Vol. 4 - pp. 1-47. 5 In natural mating a bull mounts a cow and ejaculates his semen into her vagina. 6 In artificial insemination as a guide, birth weight breeding values are much better predictors because they .. F2 or F3 bulls which are bred as follows: milk recorded dairy breed cow X This manual was produced as a collaborative project between the Western Institute for. Food Safety . Veal Calves Immature beef and dairy breed cattle that farming in the tropics such as feeding, breeding, health care, reproduc- tion and recording Governments en- courage the milk production of dairy cattle, and sometimes also of of the provider's instructions is most important. Acaricides can Resource Guide - Reproduction & Breeding. The 4-H Dairy Project. Believe it or not, the reproductive cycle of a cow is central to the entire business of a dairyManual of Dairy Cattle Breeding [J.W. Gowen] on Amazon.com. *FREE* shipping on qualifying offers.