Lecture 7: Dairy Production Medicine Flashcards
(41 cards)
What is grade A milk
Consumer safe in whatever form it comes in
What is Grade A class I milk
Beverages- fluid milk
What is grade A class II milk
Soft products- heavy cream, sour cream, cottage cheese, ricotta, yogurt
Frozen dairy products- ice cream, frozen yogurt
What are grade A class III milk products
Cheese- cream cheese, spreadable cheese, hard cheese
What are grade A class IV milk products
Butter and powder products
What primarily drives cost of milk, what wholesale commodity
Cheese, butter, dry milk products
How many lactations until a cow has paid for themselves
2-3 (5yrs old)
Describe the steps from calf—> milking at dairy production
- Calves—> females separated from mom at birth and bull calves sent to feedlot
- Heifer calf are weaned from hutches at 8 weeks old to group housing
- Bred at 14-15 months
- Gestation 285 days
- Birth and lactation
At what age are dairy calves weaned
8 weeks
At what age are dairy cows bred
14-15 months
When does a calf transition from heifer calf to heifer
Heifer calf until 8 weeks old and weaned
After that considered heifer
When is heifer considered a cow
After birth of first calf
What is a very common site of infection in heifer calves
Umbilical cord
What % BW must heifer calves be bottle fed at minimum
10-15%
What is the benefit of adding ad lib water, ad lib grain/grass hay
Help develop their rumen and prepare them for future diet
When do you vaccinate heifer calves
6 weeks
What infectious diseases are you most worried about in calves from 0-8 weeks
Diarrhea
What disease are you most worried about in weaned calves
Bovine respiratory disease complex
What are the 2 different ways dairy heifers can be housed
- Heifer raising facility (until pregnant)
- Pasture, dry lot
What is the goal of heifer production prior to breeding
Grow without becoming over-conditioned because increase risk of dystocia
Breed heifers at __% mature weight around ___lbs
65%, 750lbs
When do you want heifers to have their first calf
22-24 month old (~2yrs)
What are the housing options for lactating cows
Pasture, dry lot, free stalls
What food do lactating cows get
Total mixed ration (TMR)
