This set of Dairy Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Dairy Farm – 1”.
1. What are two types of culling in a dairy herd?
a) Forced culling
b) Choice culling
c) Forced culling and choice culling
d) No culling
Explanation: Culling is the departure of cows from the herd due to sale, slaughter, or death. In general, culling has been classified as forced or choice.
2. What are two causes of calf scours?
I. overfeeding milk
II. feeding from dirty pails
III. allowing calf to drink too fast
IV. unsanitary pens
a) I and II
b) II and III
c) I, II, III and IV
d) IV only
Explanation: Cause of infection in calf scours may be grouped as follows: Bacteria: Escherichia coli, Salmonella spp., Clostridium perfringens, and other bacteria. Other causes include overfeeding milk, feeding calf from dirty pails, allowing them to drink too fast and using unsanitary pens.
3. What is the seed portion of the plant called?
Explanation: Grain is the seed portion of the plant. “Grain crops” are grain seed producing plants.
4. How many feet should be allowed between one show person and another when circling in the show ring?
Explanation: It is advised to stop in a straight line head to tail. One should remember to check the calf and then stop by lifting its head. Allow 4 to 6 feet between your calf and the one in front. This allows the judge space to move freely around the cattle and helps to prevent calves from mounting or disturbing others in the line.
5. Colostrum has a higher percentage of what nutrients than normal milk?
b) Vitamin A and energy
d) Protein, energy, minerals, vitamin A
Explanation: Colostrum is a form of milk produced by the mammary glands of during pregnancy. .Colostrum consists of antibodies to protect the newborn against disease. In general, protein concentration in colostrum is substantially higher than in milk.
6. What two vitamins is milk high in?
a) A and D
Explanation: Milk contains small amounts of niacin, pantothenic acid, vitamin B6, vitamin C, and foliates and is not considered a major source of these vitamins in the diet. Milk contains the fat soluble vitamins A, and D.
7. What’s the major reason a cow may be culled by choice?
a) high production
c) low production
Explanation: Farmer has complete freedom of choice over which cows are removed from the herd. The major reason for culling by choice is the low production of milk by a cow.
8. What are two common baby calf diseases?
c) scour and pneumonia
Explanation: All calves are exposed to a variety of micro-organisms such as viruses, bacteria and protozoa as soon as they are born. Three important disease problems for young calves are septicemia, diarrhea, and pneumonia.
9. What is not an example of sources of grain protein supplements?
c) Linseed oil meal
d) Coconut oil
Explanation: Feeding 0.8 to 1.0 pounds daily per head of soybean meal, cottonseed meal or a similar 40 percent linseed oil meal has been more profitable for cattle.
10. When the judge is observing the left side of the dairy cow, where should the exhibitor be positioned?
d) in front of the cow
Explanation: Move as the judge or ring steward instructs. When a judge observes the left side the exhibitor should be in front of the cow.
11. How early should a calf receive colostrums?
a) 1 day after born
b) 2 days after born
c) 12 hours after born
d) 30 minutes after born
Explanation: Colostrum is protein rich first milk of cow. It should be received 30 min after the calf is born.
12. Extra amounts of what vitamin are usually added to milk?
a) vitamin K
b) vitamin C
c) vitamin D
d) vitamin A
Explanation: Fortification of Vitamin D is a practice everywhere. It helps in bone health.
13. What is one of the two major reasons a cow would be forced culled?
a) Poor health
c) Poor health and Mastitis
d) Healthy cow
Explanation: Cows are culled by choice due to low productivity. However, they are forced to be culled in case of poor health and Mastitis.
14. What type of bedding is recommended for groups of calves?
Explanation: Calf should have proper bedding to ensure rest and productivity. Bedding which consists of leaves, straw etc is recommended.
15. What is an example of a non protein nitrogen (NPN) used as a protein source in dairy feeds?
Explanation: Non-protein nitrogen compounds (NPN) are a group of high-protein feedstuffs. NPN feeds are feeds which contain nitrogen in a form other than peptides or proteins. Urea is an example of NPN.
Sanfoundry Global Education & Learning Series – Dairy Engineering.
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