This set of Dairy Engineering Questions and Answers for Experienced people focuses on “Cows in Dairy – 2”.
1. What is an excellent point to blend into on the rear legs when clipping?
a) blood view in the hock region
b) udder
c) skin
d) eyes
View Answer
Explanation: To assess the efficiency of grooming the following parts of the body should be examined carefully (1) poll region (2) inside the ears (3) bend of the knees and hocks (4) under the belly (5) and between the fore legs and thighs. Blood view in the hock region should be bend into the rear leg while clipping.
2. How long is a dairy cow’s gestation period?
a) approximately 50 days
b) approximately 100 days
c) approximately 250 days
d) approximately 280 days
View Answer
Explanation: Gestation length varies by age of dam, breed, and sex of the calf. Gestation period in cattle ranges from 278 to 287 days. For most breeds, 283 days is common.
3. What breed of the dairy cow was first raised on the Island of Guernsey in the English Channel?
a) Guernsey
b) Holstein
c) Jersey
d) Brown Swiss
View Answer
Explanation: The Guernsey cattle breed came first into being in the Channel Islands between France and England and is named for the Isle of Guernsey, which is the most western of the group.
4. What are the two parts of a cows hoof?
I. sole
II. heel
III. claw
a) I only
b) II only
c) I and II
d) I, II, and III
View Answer
Explanation: A cow hoof is cloven, or divided, into two approximately equal parts, usually called claws, sole, and heels.
5. What is the process called wherein the fat in milk is broken into small parts so it will not float to the top layer of milk?
a) Pasteurization
b) Thermalization
c) Homogenization
d) UHT
View Answer
Explanation: Homogenization is the process of breaking down the fat molecules in milk so that they stay integrated rather than separating as cream. Homogenization is a purely physical process; nothing is added to the milk.
6. The lack of which vitamin causes night blindness in cattle?
a) vitamin K
b) vitamin B
c) vitamin A
d) vitamin C
View Answer
Explanation: Vitamin A deficiency (VAD) or hypovitaminosis A is a lack of vitamin A in blood and tissues. It is common in poorer countries but rarely seen in more developed countries. Nyctalopia (night blindness) is one of the first signs of VAD.
7. What piece of equipment may be used to trip cow’s hooves?
I. Hoop trimmer
II. Nipper
III. Hoop knife
IV. Chisel
V. Mallet
a) I, II and IV
b) I, II and III
c) I only
d) I, II, III, IV and V
View Answer
Explanation: Hoop trimmers, nippers, hoop knife, chisel and mallet are all equipment which could be used to trip cow hooves.
8. What should be dipped in iodine after the birth of a calf?
a) calf’s leg
b) calf’s navel
c) calf’s foot
d) calf’s head
View Answer
Explanation: Remove any debris or straw on the navel cord and dip it immediately, once the calf’s breathing well on its own. Tincture of iodine (at least seven percent iodine) should be used for dipping. The alcohol in the solution will help dry out the cord.
9. What breed is the smallest of all the dairy breeds?
a) Holstein
b) Jersey
c) Brown Swiss
d) Guernsey
View Answer
Explanation: Jersey is the smallest of the dairy breeds, weighing in at 800 to 1,200 pounds, while the average cow weighs about 1,500 pounds.
10. Cows of what breed are known for their yellow milk?
a) Holstein
b) Jersey
c) Brown Swiss
d) Guernsey
View Answer
Explanation: Guernsey is a breed of dairy cattle from the island of Guernsey in the Channel Islands. It is fawn or red and white in color and is hardy and docile. Its milk is rich in flavor, high in fat and protein, and has golden-yellow tinge.
11. In dairy cattle what is the mother called?
a) Sam
b) Ram
c) Dam
d) Tam
View Answer
Explanation: A calf (plural, calves) is the young of domestic cattle. Calves are reared in order to make them into adult cattle; some calves are ear tagged soon after birth, particularly those that are stud cattle in order to correctly identify their dams (mothers).
12. What is a good source of carotene to provide Vitamin A to cattle?
a) Green leafy grass and yellow corn
b) Wheat
c) Maize
d) Millet
View Answer
Explanation: While grazing green grass, cattle get plenty of vitamin A but during the winter. The best source of this vitamin is beta-carotene, a pigment in green plants.
13. Which direction should the cow be led in the ring?
a) clockwise
b) anticlockwise
c) parallel
d) horizontal
View Answer
Explanation: The lead strap should be looped loosely in the right hand. During the show inside the ring, the master will almost always be walking in a clockwise direction, so this is how master should practice when preparing for the round robin. When displaying, always stay on the cows left side.
14. What is the process called when the egg from the cow and the sperm from the bull are joined?
a) milking
b) making
c) healing
d) fertilization
View Answer
Explanation: Fertilization is the fusion of haploid gametes, egg and sperm, to form the diploid zygote.
15. Switzerland is the origin of what dairy breed?
a) Holstein
b) Jersey
c) Brown Swiss
d) Guernsey
View Answer
Explanation: Perhaps the oldest of all dairy breeds, Brown Swiss originated in the valleys and mountain slopes of Switzerland around 4000 B.C. Switzerland, the native home of the Brown Swiss is a rough and mountain trail country with a total area of about 15,940 square miles.
Sanfoundry Global Education & Learning Series – Dairy Engineering.
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