2Important TermsButterfat- fat of milk, solid part of milk before being processedVeal- meat from young calves- most come from dairy calvesDry Period- 60 days before calving, stop milking and allow to rebuild body conditionCull- remove from herd due to lack of production
3What do we get from dairy cattle? MilkCheeseYougurtIce creamMeatLeatherCurdsWhey
4History Columbus first brought to US in 1492 Early 1600s in the colonies- few cows per familyLate 1800s became important industry in agricultureToday # of cows is on the downfall but the amount of milk production is on the increase
5Important Facts580 lbs of milk and milk products consumed per person per yearOn average a cow produces around 17,500 lbs of milk a year1st 36 hours calves must be fed milk from their mother and then milk or milk replacer for four weeksMilk cows 2-3X a dayAbout mins. to milk with a machineMilk comes out at 100 F
6Feedstuffs Corn Hay Soybeans/Soybean meal Silage- green forage matter stored in a silo and partially fermented
7Milking TerminologyBulk tank- refrigerated, stainless steel storage tank located at the dairy, designed to hold milk as soon as it leaves the cow. The milk is cooled immediately in the bulk tank, usually to degrees F. The milk is then collected by a bulk tank truck and shipped to a processing plant.Casein-The dominant protein (80 %) in cow’s milk, is vital to cheese making, and has a variety of uses in manufacturing as well.Curd-The clumps of protein and other milk components that are formed during the cheese making process. Curds are pressed into blocks or barrels for proper aging and curing of the cheese
8Milking TerminologyWhey-The watery part of milk that separates from the curds during the cheese-making process. The composition of whey varies considerably, depending on the milk source and the manufacturing process involved.Pasteurization- a simple, effective method to kill harmful pathogens through heat treatment without affecting the taste or nutritional value of milk.Colostrum-The first milk given by a dairy cow following birth that is rich in fat and protein and has immunity elements. Colostrum is given to newborn calves in the first 36 hours of life.
9Milking TerminologyParlor- place where cows are brought in to be milkedButterfat- fat in milkMilk replacers- dry dairy or vegetable products that are mixed w/warm water and fed to young calves in place of milkMilk- white or yellowish liquid secreted by the mammary glands of animals for the purpose of feeding young