NSC Agricultural Sciences Animal Production: 3.1 The picture below shows anim

Question

3.1 The picture below shows animal behaviour under hot conditions.

3.1.1 Identify TWO visible actions that the cattle in the picture above take to decrease the effects of heat.

3.1.2 Indicate TWO reasons why shelter is important to farm animals.

3.1.3 State TWO requirements of the vehicle that transports farm animals.

3.2 The table below shows relative changes in the expected dry matter intake (DMI), milk yield and water intake with increasing environmental temperature.

3.2.1 Identify the main farm product produced in the table above.

3.2.2 Describe the relationship between dry matter intake, milk yield and water intake when the environmental temperature increases.

3.3 The graph below shows the average live weight of farm animals for farmers A and B who use different production systems.

3.3.1 Identify the farmer that represents EACH of the following:

(a) Extensive production system
(b) Intensive production system

3.3.2 Justify the answers to QUESTION 3.3.1(a) and 3.3.1(b).

3.3.3 Identify a disadvantage with regard to the input costs of the intensive production system.

3.4 The Department of Agriculture reported several foot-and-mouth disease (FMD) outbreaks in different areas of South Africa. This led to a ban on the export of animals and their products. Veterinarians were then deployed to the affected areas and infected animals were separated from non-infected animals.

3.4.1 Indicate the pathogen that causes the disease in the scenario above.

3.4.2 Give TWO main symptoms of foot-and-mouth disease in farm animals.

3.4.3 Identify, in the scenario above, TWO roles of the state regarding infected animals.

3.4.4 State TWO economic impacts of foot-and-mouth disease on South Africa.

3.5 The pictures below show different methods used to administer medication to farm animals.

Write down the letters (A–D) that represent TWO methods in the pictures above that can be used for the following:

3.5.1 Control of external parasites:

3.5.2 Treatment of internal parasites:

3.6 The pictures below show different organisms harmful to farm animals.

3.6.1 Give a term that describes the organisms in A, B, C and D.

3.6.2 Classify the organisms in B and C.

3.6.3 Identify the organism (A, B, C or D) that is responsible for transmitting EACH of the following diseases:

(a) Redwater
(b) Rift Valley fever (RVF)
(c) Heartwater

3.7 List THREE plants that are poisonous to farm animals.

3.1 The picture below shows animal behaviour under hot conditions - NSC Agricultural Sciences - Question 3 - 2021 - Paper 1

Worked Solution & Example Answer:3.1 The picture below shows animal behaviour under hot conditions - NSC Agricultural Sciences - Question 3 - 2021 - Paper 1

Identify TWO visible actions that the cattle in the picture above take to decrease the effects of heat.

Indicate TWO reasons why shelter is important to farm animals.

State TWO requirements of the vehicle that transports farm animals.

Identify the main farm product produced in the table above.

Describe the relationship between dry matter intake, milk yield and water intake when the environmental temperature increases.

Identify the farmer that represents EACH of the following:

Justify the answers to QUESTION 3.3.1(a) and 3.3.1(b).

Identify a disadvantage with regard to the input costs of the intensive production system.

Indicate the pathogen that causes the disease in the scenario above.

Give TWO main symptoms of foot-and-mouth disease in farm animals.

Identify, in the scenario above, TWO roles of the state regarding infected animals.

State TWO economic impacts of foot-and-mouth disease on South Africa.

Write down the letters (A–D) that represent TWO methods in the pictures above for the control of external parasites.

Write down the letters (A–D) that represent TWO methods in the pictures above for the treatment of internal parasites.

Give a term that describes the organisms in A, B, C and D.

Classify the organisms in B and C.

Identify the organism (A, B, C or D) that is responsible for transmitting EACH of the following diseases:

List THREE plants that are poisonous to farm animals.

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