Dairy Management Chris Ellason 4 groups of dairy

Dairy Management Chris Ellason

4 groups of dairy cows § Far- off dry cows: Cows from time quit producing milk until 21 days before calving § Close up dry cows: Within 21 days of calving § Fresh Cows: Cows that recently calved § Lactating Cows: Cows that are producing milk in the milking string

Calves § Aloud to get colostrum then removed § Bull calves fed for veal or castrated and fed for beef § Heifers are grown, bred, and milked for at least one lactation § Calves are put into individual pens and fed milk or milk replacer for 4 -8 weeks § Given hay and grains to get them to start eating dry feeds

Breeding § Most are bred by artificial Insemination § Sexed semen § Some embryo transfer § Very little natural service

Ration § § Far- off: 100% forage Close up: 75% forage Fresh: 65 -75% forage Lactating: 50 -60% forage

Problems § § § Dystocia: Problems calving Milk Fever: Ca deficiency Retained Placenta: Caused by genetics, dystocia, K overload, Vitamin E deficiency § Cows show to produce 5 -8% less milk lifetime § Mastitis: Infection in the udder

Terminology § SCC: Somatic Cell Count § Amount of cells that are in the milk § Max SCC: 750, 000 SCC/ liter § Primiparous: Cow that has had only one calf § Multiparous: Cow that has had multiple calves § DIM: Days in milk

Various Milking Parlors § § § § Single side opening Rotary tandem Rotary herringbone Double herringbone Turnstyle Polygon herringbone Trigon