Milk is nature’s most perfect food
True or False.
T F 2. Cattle produce only about 75% of the world’s milk supply.
T F 3. Almost one-half of the U.S. milk is exported to other countries. T F 4. Milk supplies humans with 72% of their calcium requirements.
T F 5. Dairy cows are inefficient converters of feed protein into food protein.
T F 6. The first rail shipment of milk occurred in 1841 between New York
City and Chicago.
T F 7. There are more dairy cows in Wisconsin than there are in Texas. T F 8. The PDCA promotes the purebred dairy cattle.
T F 9. There are no membranes that seperate the two halves of the udder
T F 10. The inguinal canal is the only opening between the udder and the body cavity.
T F 11. At the time of milking, almost all of the milk is in the cisterns.
T F 12. Each lobule can contain up to 220 alveoli.
T F 13. Fetal development of the udder is completed six months after conception.
T F 14. Estrogen and progesterone aid in the development of the mammary gland.
T F 15. The medial suspensory ligament is the majority of the udder’s support.
- What are three problems or concerns associated with milk consumption?
- When did dairying begin?
- What is AMPI and what is their role in the dairy industry?
- List four of the seven different tissues that suspend and support the udder:
Describe each of the following breeds (give physical characteristics, area of origin, milk yields, special traits, etc.)
- Brown Swiss
- Milking Shorthorn
- a) a stretched or torn medial suspensory
- b) credited for the modern dairy c) German scientist that proved the germ
theory of diseases.
- d) accumulation of lymph under skin of the udder.
- e) subspecies of most of the modern dairy
- f) perfected the partial sterilization of foods (saved beer & wine industry).
- g) carries the stimuli from the udder to
- h) artery and vein that enter into mammary
- i) extra teats that are usually j) patented condensed milk in 1856.
- k) initiates lactation at the time of parturition.
1) perfected a chemical test to determine the fat content of milk in 1890.
- m) motor nerves playing no role in milk secretion.
- What is the difference between epithelial cells and myoepithelial cells?
- What is incomplete milking and why should a dairy farmer be concerned with it?
41-50. Draw a diagram of a duct system of one quarter and use the following terms to label it: lobe, teat meatus, major ducts, teat cistern, Furstenburg’s rosette, alveoli, lobule, minor (small) ducts, annular fold, gland cistern.