AVS 101 Lecture Notes - Lecture 16: Milk Fever, Streptococcus, Antibiotics
19 Mar 2017
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Document Summary
The udder has been called the world"s greatest food factory and; the cow has been called the foster mother of the human race. Mammals: breather air, have a backbone, have hair/fur, are warm-blooded, lactate, live birth. Monotremes: egg laying mammals, have mammary hair, no nipple, e. g. Marsupials: pouched mammals, attach to mammary glands, e. g. kangaroo, opossum. Mammary line is from pectoral region to inguinal (groin) region: elephant/human pectoral region, cow/sheep inguinal region, sow 2 rows along medial ventral line (14 teats) Number of teats varies with species: mare 4 glands, 2 teats, human 2 glands, 2 breasts. Teat openings vary among species: cow, goat, and sheep one opening, sow and mare 2 openings, woman and bitch many openings. Blood supply: mammary gland needs good blood supply, external pudic artery (milk vein, 300-500 gals. By filtration from blood : milk gets, water, minerals, vitamins. By filtration from mammary tissue : milk gets, proteins, fats, carbs.
