NSC Agricultural Sciences Animal Reproduction: The picture below shows the repr

Question

The picture below shows the reproductive system of a bull.

4.1.1 Identify A, B and C.

4.1.2 State ONE function of A.

4.1.3 Indicate the role of gland D.

2. Bulls may appear healthy and normal but lack the drive to service cows.

4.2.1 Give a term for the condition described in the statement above.

4.2.2 State THREE causes of the condition given in QUESTION 4.2.1.

4.3 The illustration below shows a process that occurs in female animals.

4.3.1 Identify the hours after oestrus when the highest pregnancy percentage rate may be achieved.

4.3.2 Give a reason why an inseminator will be able to inseminate the cow between the first hour and 12 hours after the start of oestrus.

4.3.3 State TWO visible signs showing that the cow is in oestrus.

4.3.4 Give ONE reason to inseminate heifers before ovulation.

4.3.5 Indicate ONE requirement of a successful insemination.

4.4 The diagram below represents a process that occurs in female animals.

4.4.1 Label A, B and C.

4.4.2 Name the reproductive process represented in the diagram above.

4.5 Hormones cause reproductive changes in cows that occur between one heat period and the next. Below is an illustration of the changes in the reproductive cycle of a cow.

4.5.1 Identify the process in the reproductive cycle of mature cows illustrated above.

4.5.2 Name the THREE stages of the process identified in QUESTION 4.5.1.

4.5.3 Indicate the normal presentation of the calf in pelvis at birth.

4.6 Problems are usually experienced by heifers that are calving for the first time.

4.6.1 Name the condition referred to in the statement above.

4.6.2 Give TWO signs of an animal that is experiencing birth problems.

4.6.3 State ONE cause of birth problems in heifers.

4.6.4 Name the hormone that initiates milk release.

4.6.5 Name the milk produced in the first three days after calving.

4.7 Superior donor cows are treated with an intravaginal drug to stop the cows from coming into oestrus. FSH is injected every morning and prostaglandin is injected. After the repeated injections with formulated hormones, the superior cows are inseminated. After seven days the fertilised egg cells are removed to be implanted into the recipient cows.

The picture below shows the reproductive system of a bull - NSC Agricultural Sciences - Question 4 - 2020 - Paper 1

Worked Solution & Example Answer:The picture below shows the reproductive system of a bull - NSC Agricultural Sciences - Question 4 - 2020 - Paper 1

Identify A, B and C.

State ONE function of A.

Indicate the role of gland D.

Give a term for the condition described in the statement above.

State THREE causes of the condition given in QUESTION 4.2.1.

Identify the hours after oestrus when the highest pregnancy percentage rate may be achieved.

Give a reason why an inseminator will be able to inseminate the cow between the first hour and 12 hours after the start of oestrus.

State TWO visible signs showing that the cow is in oestrus.

Give ONE reason to inseminate heifers before ovulation.

Indicate ONE requirement of a successful insemination.

Label A, B and C.

Name the reproductive process represented in the diagram above.

Identify the process in the reproductive cycle of mature cows illustrated above.

Name the THREE stages of the process identified in QUESTION 4.5.1.

Indicate the normal presentation of the calf in pelvis at birth.

Name the condition referred to in the statement above.

Give TWO signs of an animal that is experiencing birth problems.

State ONE cause of birth problems in heifers.

Name the hormone that initiates milk release.

Name the milk produced in the first three days after calving.

Explain the process in the scenario above.

What is the importance of the process in QUESTION 4.7?

Explain what a donor cow is.

Join the NSC students using SimpleStudy...