1. Dairy Production

2. Objectives Explain the importance of the dairy industry;
Define terms associated with dairy production
List 7 breeds of dairy cattle & their breed characteristics;
Label the internal and external parts of a dairy cow;
Breakdown the cycle of milk production;
Describe technologies used on the dairy and their importance; and

3. Objective A: Explain the importance of the dairy industry
MILK 50
U.S. daily milk production is ________ million gallons.
Youth across the nation drink ______% of all milk consumed.
Milk is one of the ______ foods known to man! 46
oldest

6. CHEESE 6.7 Mozzarella Pizza
Michigan Cheese production total is ________ million pounds.
30% of the nations cheese production is __________
70% of mozzarella is used on ____________.
6.7
Mozzarella
Pizza A4

7. ICE CREAM
Michigan Ice Cream production is ________million gallons per year.
_______million Americans eat ice cream daily.
17.3
18.2 A5

8. Why dairy?
Dairy foods are the richest source of _________ a critical nutrient for everyone.
Dairy products contribute _____% of the calcium available in the U.S. food supply.
9 Essential Nutrients
Calcium Vitamin D Protein
Potassium Phosphorus Riboflavin
Vitamin A Vitamin B12 Niacin
Calcium
95% A6

9. Other assets…. Disease Prevention Recent research shows – weight loss
Osteoporosis
Hypertension
Strokes
Recent research shows – weight loss
advantages A7

10. Calf: Young Bovine
Bull: Male Bovine
Steer: Castrated male bovine
Heifer: Female bovine who has NOT delivered her first calf
Cow: Female bovine who HAS delivered her first calf
Colostrum: The first milk produced, rich in nutrients for newborn calf
Freshen: To calve and begin giving milk
Dry Cow: Cow no longer giving milk

11. C: List 7 breeds of dairy cattle & their breed characteristics;2 1 3 6 4 5 B1
Source:

12. Median Suspensory Ligament
Internal Parts: Mammary System
Median Suspensory Ligament
Fine Membrane
(Between quarters)
Alveoli
Outer Wall

13. Key External Parts Pins Hooks Rear Udder Attachment Milk Vein Udder
Fore Udder Attachment
Teats

14. E. Breakdown the cycle of milk production
Heifer is bred and delivers a calf 9 months later
Dry cow rests for a few months until she calves again
Cow is placed in the milk herd where she stays for months
When cow’s milk production declines, she is bred again and “dried”
(stops producing milk)

16. 1-Milking Machines and Parlors
How far have we come?
1-Milking Machines and Parlors
Hand milking
milk ~6 cows an hour
Milking parlor with automatic machines can milk ~100 cows an hour C5

17. 2-Storage & Cooling
1861 Mechanical Refrigeration available
1938 Bulk tanks begin to replace milk cans
From the milk can to at least a gallon tank that automatically cools the milk. C6

18. 3-Artificial Insemination
Increases genetic quality and diversity
Today it’s used almost exclusively on ALL dairies.
4- TMR – Total Mixed Rations
Important for good health and high milk production
Quality feed= high quality milk and lots of it C7

19. 5- Record Keeping and Computers
DHIA
Dairy Herd Improvement Association
Record keeping system for dairies
Computer programs to better track animals:
Production
Pregnancy
Illnesses C8

20. 6-BST What is BST? Bovine Somatotropin
a naturally-occurring protein hormone
Regulates milk production and growth in lactating dairy cows.
In 1994 Monsanto Company received approval for the commercial marketing of bST with the trade name POSILAC® C9

21. How does it work? bST has 3 functions in a very specific order.
1- Bone Growth: if animal is not fully grown, it stimulates bone growth
2-Maintenance: If cow doesn’t have sufficient nutrition and body fat, bst will help add body condition
3-Milk Production: Once bone growth and maintenance are balanced, BST increases milk production.
C10a

22. Safety
Cows
Cows supplemented with bST are healthy & have increased yields in milk
Milk composition is unaffected
Reproduction is unaffected
Performance of calves born to cows treated with bST is excellent
Humans
bST is a protein hormone, not a steroid hormone
bST does not alter the chemical composition in milk
The U.S. FDA has approved human consumption of milk and meat from dairy cows supplemented with bST
C12

23. It is the CHOICE of the dairy producer
Why WOULD Dairy Producers use BST?
Increased milk production = increased profits
Why would they NOT use BST?
Concerned about public perception
It is the CHOICE of the dairy producer
C13