This set of Dairy Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Cow Milk”.
1. The gestation period for cow is:
a) 9 months
b) 1 year
c) 2 year
d) 3 months
Explanation: Fetal development period from the time of conception until birth i.e. gestation period for cow is nine months.
2. After calving the cow gives milk for how many months:
a) 2 months
b) 6 months
c) 10 months
d) 1 year
Explanation: After giving birth the cow lactates for about 10 month.
3. Amount of blood through udder needed for formation of 1 litre of milk:
a) 100 litres
b) 200- 300 litres
c) 800- 900 litres
d) 500-600 litres
Explanation: 800 – 900 l of blood required for formation of one litre of milk. Usually 850 litres of blood is used up.
4. The first milk the cow produces after calving is called:
Explanation: First milk produced by the cow after giving birth is called colostrum. This special milk is yellow to orange in color and thick and sticky.
5. _____ Hormone that need to be released in order to start milking:
Explanation: to start the milking process it is very important that oxytoxin is released from the cow’s body.
6. Milking is done by which of the following methods:
a) Hand Milking
b) Machine Milking
c) Hand Milking and machine milking
Explanation: Milking can be done both by hand and by machine. But automated milking is preferred over manual milking as it reduces the risk to contamination.
7. Milk should be kept at ____ temperature as soon as it leaves the cow udder.
Explanation: Milk should be kept at 4℃ .It has been found that at 4℃ the growth of pathogenic microorganisms stops.
8. Which is not a consequence of season milk production is________
a) Seasonal swings in price
b) Excess manufacturing capacity
c) Excess milk production in the spring
Explanation: Seasonal swings in price, excess manufacturing capacity and excess milk production in the spring all are consequences to seasonal milk production.
9. The leading cause of high bacteria counts in raw milk is_________
a) Younger cows
b) Poor sanitation
c) Older cows
Explanation: Poor sanitation attributes to the high bacteria count in the milk. It leads to downgrade of quality.
10. After milking a cow, the cows teats should be dipped___________
a) after 2 minutes
b) after 1 minute
c) after 30 seconds
Explanation: It is advisable that the cow’s teats should be dipped immediately after milking.
11. Generally, which breed produces the largest volume of milk?
d) Brown Swiss
Explanation: Holstein breed produces largest volume of milk as compared to Aryshire, jersey and brown Swiss.
12. Milk from a cow with mastitis will have__________
a) abnormal freezing point
b) a high somatic cell count
c) both a and b
d) abnormal boiling point
Explanation: Milk from a cow with mastitis will have abnormal freezing point and a high somatic cell count. This milk should not be consumed.
13. Name (General) for a class of bacteria that causes mastitis in dairy cattle.
Explanation: Mastitis in dairy cattle is caused by Staphylococcus. Mastitis is a bacterial disease which leads to inflammation in mammary glands of cow.
14. Mostly healthy open cows will start a new reproductive cycle every ______ days.
Explanation: Reproductive cycle for healthy cows start every 21-28 days.
15. Percentage of water in buffalo milk is:
a) 65-67 %
b) 70-75 %
c) 80-85 %
d) 87-90 %
Explanation: buffalo has 87-90 % water in its milk and 10-13% other material.
Sanfoundry Global Education & Learning Series – Dairy Engineering.
To practice all areas of Dairy Engineering, here is complete set of 1000+ Multiple Choice Questions and Answers.