ANSC 1011 : CLass Notes Before Exam 3
Document Summary
1841 first regular rail shipment of milk. 1936 first ai stud started (most powerful tool in livestock improvement, still today) Pasteurization: milk is heat treated to cool any pathogenic bacteria. Milk is the: universal food, and nearly perfect. Milk production increased 15% from "02-"11, despite decrease in operations. (2011: av. La trends: # of dairy cows is decreasing, as are herds, herd size is increasing, about 140 per herd, milk productions is decreasing. Cows can give over 25 gallons of milk each day. Two groups of cattle based on type and product: beef type, blocky, dairy type, angular. Jersey: origin: isle of jersey, colors, shades of fawn, with or without markings, muzzle is black, 1000 lb, produces more milk per pound of body weight, converts less carotene to vitamin a = fat (milk) Brown swiss: origin: switzerland, color, solid brown. Guernsey: origin: isle of guernsey, colors, shade of fawn w/ white markings, 1250 pb.
