Breed Selection, Methods and Selection Factors

Question 1

What is a group of domestic animals within a species that possess distinctive, identifiable physical characteristics consistently passed to their offspring?

Accepted Answer

Breed

Question 2

What is the systematic process of choosing outstanding animals from a herd or flock to become parents of the next generation?

Accepted Answer

Selection

Question 3

Which of the following is an example of a pig breed mentioned in the lesson?

Accepted Answer

Large White

Question 4

Which of the following is a hereditary abnormality that systematic breed selection helps to eliminate from a herd?

Accepted Answer

Scrotal hernia

Question 5

Which type of selection is driven entirely by environmental forces like climate, disease, and predators without human intervention?

Accepted Answer

Natural selection

Question 6

What is the conscious and deliberate choosing of animals by humans to breed for specific desirable traits called?

Accepted Answer

Artificial selection (Selective breeding)

Question 7

Which selection method involves choosing individual animals based solely on their own physical appearance and performance records, without considering their ancestors?

Accepted Answer

Mass selection

Question 8

When a farmer selects breeding animals based on the performance and history of their ancestors or parents, which method is being used?

Accepted Answer

Pedigree selection

Question 9

Which selection method evaluates and selects breeding animals based on the actual performance of their offspring?

Accepted Answer

Progeny testing

Question 10

Which modern selection method analyzes animal DNA in a laboratory to identify genetic markers associated with desirable traits?

Accepted Answer

Genomic or marker-assisted selection

Question 11

What is a major advantage of genomic or marker-assisted selection?

Accepted Answer

It allows prediction of future performance at a very early stage (newborn or embryo)

Question 12

According to the lesson, what physical conformation should a dairy cow have?

Accepted Answer

A wedge-shaped body, a deep barrel, and a well-developed udder

Question 13

What physical conformation is preferred for a beef animal?

Accepted Answer

A blocky, rectangular, and muscular frame

Question 14

Why are N'Dama and Muturu cattle breeds often selected in Southern Nigeria?

Accepted Answer

They have a natural tolerance to trypanosomiasis carried by tsetse flies

Question 15

What age of livestock is preferred when selecting breeding stock?

Accepted Answer

Young, vigorous animals close to or just reaching reproductive maturity

Question 16

Why should farmers select animals with a calm and docile temperament?

Accepted Answer

Aggressive or wild animals are difficult to handle, can cause injuries, and perform poorly due to stress

Question 17

During a close physical examination of a male breeding animal, what should a farmer ensure regarding the testicles?

Accepted Answer

Both testicles are present, well-developed, and equal in size

Question 18

When inspecting the udder of a female breeding animal, what health condition should the farmer ensure is absent?

Accepted Answer

Mastitis

Question 19

How long should newly selected animals be placed in a quarantine pen before being introduced to the existing herd or flock?

Accepted Answer

At least thirty days

Question 20

What is the primary purpose of placing newly selected livestock in a quarantine pen?

Accepted Answer

To monitor them for any hidden diseases before introducing them to the herd

Strong work.

Leave this flashcard session?