NSC Agricultural Sciences Animal Nutrition: 1.1 Various options are provided

Question

1.1 Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A–D) next to the question numbers (1.1.1 to 1.1.10) in the ANSWER BOOK, e.g. 1.1.1 B.

1.1.1 The compartment in the ruminant stomach that has folds that increase the total surface area for absorption of water:
A Rectum  
B Omasum  
C Reticulum  
D Abomasum

1.1.2 ... is an example of a fat-soluble vitamin that is essential for normal reproduction:
A Vitamin A  
B Vitamin B₁  
C Vitamin B₆  
D Vitamin B₁₂

1.1.3 Each of the following is a requirement for a feed flow programme:
(i) Matches feed production capabilities of the farm to the animal feed requirements.  
(ii) Ensures relative margin over feed cost.  
(iii) Makes feed available to animals throughout the production period  
(iv) Ensures sustainable use of resources

Choose the CORRECT combination:
A (i), (ii) and (iv)  
B (ii), (iii) and (iv)  
C (i), (ii) and (iii)  
D (i), (ii), (iii) and (iv)

1.1.4 Feeds with proteins of high biological value are used for:
A Growth and reproduction.  
B Growth and fattening.  
C Growth and maintenance.  
D Production and maintenance.

1.1.5 A sign of aggressive behaviour in cattle:
A Drooping head and ears  
B Slow movement  
C Lying down and reluctant to get up  
D Pawing

1.1.6 The statements below describe an extensive production system:
(i) A small number of animals on a huge area of land  
(ii) Little human involvement and technological input  
(iii) High production output  
(iv) Animals fend food for themselves

Choose the CORRECT combination:
A (i), (ii) and (iii)  
B (ii), (iii) and (iv)  
C (i), (ii) and (iv)  
D (ii), (iii) and (iv)

1.1.7 An instrument that is used to administer the deworming liquid to sheep:
A Burdizzo  
B Dosing gun  
C Scalpel  
D Dewormer

1.1.8 Metabolic diseases are caused by mineral deficiencies and are ...
A Infectious.  
B Non-infectious.

1.1.9 The membrane surrounding the foetus and responsible for the removal of urine:
A Allantois  
B Placenta  
C Chorion  
D Amnion

1.1.10 One of the following statements with regard to the normal lactation of dairy cows is INCORRECT:
A The higher the milk yield, the lower the butterfat content.  
B The higher the milk yield, the higher the butterfat content.  
C The length of milk production in cows is approximately 305 days.  
D Milk production drops before drying up.

1.2 Indicate whether each of the descriptions in COLUMN A applies to A ONLY, B ONLY, BOTH A AND B or NONE of the items in COLUMN A. Write a only, B only, both A and B or none next to the question numbers (1.2.1 to 1.2.5) in the ANSWER BOOK, e.g. 1.2.1 B only.

1.2.1 A: Concentrates  
COLUMN B: Provide bulkiness to the ration of a ruminant animal

1.2.2 A: Roughages  
COLUMN B: Digestion facilitated by micro-organisms found in the alimentary canal

1.2.3 A: Hindered fermentation  
COLUMN B: Rumen environment

1.2.4 A: Nipple drinkers  
COLUMN B: Supply water to pigs in an intensive production system

1.2.5 A: Antibiotics  
COLUMN B: Protect essential organisms against pH changes

1.3 Give ONE word/term for each of the following descriptions. Write only the word/term next to the question numbers (1.3.1 to 1.3.5) in the ANSWER BOOK.

1.3.1 The process whereby the partially digested stomach content is returned to the mouth for further chewing  
1.3.2 A preventative measure whereby animals with a contagious disease are kept away from healthy animals  
1.3.3 A common canal in male animals that is used for excretion of urine and semen  
1.3.4 An organelle in the head of a sperm cell which contains genetic materials  
1.3.5 A condition where female animals are unable to conceive after several attempts of artificial insemination

1.4 Change the UNDERLINED WORD in EACH of the following statements to make them TRUE. Write only the answer next to the question numbers (1.4.1 to 1.4.5) in the ANSWER BOOK.

1.4.1 Chyme is food that is ball-like and is mixed with saliva in the mouth of an animal during  
1.4.2 Farming where crops and livestock are produced and sold on a large scale for profit, is called an intensive farming system.  
1.4.3 The sheath encloses the primary reproductive organ.  
1.4.4 Maceration occurs when the placenta, together with liquids, dries out and only a hard dried foetus remains in the uterus.  
1.4.5 A powerful contraction of the muscles during mating resulting in the deposition of semen into the vagina of a cow is known as secretion.

1.1 Various options are provided as possible answers to the following questions - NSC Agricultural Sciences - Question 1 - 2023 - Paper 1

Worked Solution & Example Answer:1.1 Various options are provided as possible answers to the following questions - NSC Agricultural Sciences - Question 1 - 2023 - Paper 1

1.1.1 The compartment in the ruminant stomach that has folds that increase the total surface area for absorption of water:

1.1.2 ... is an example of a fat-soluble vitamin that is essential for normal reproduction:

1.1.3 Each of the following is a requirement for a feed flow programme:

1.1.4 Feeds with proteins of high biological value are used for:

1.1.5 A sign of aggressive behaviour in cattle:

1.1.6 The statements below describe an extensive production system:

1.1.7 An instrument that is used to administer the deworming liquid to sheep:

1.1.8 Metabolic diseases are caused by mineral deficiencies and are ...

1.1.9 The membrane surrounding the foetus and responsible for the removal of urine:

1.1.10 One of the following statements with regard to the normal lactation of dairy cows is INCORRECT:

1.2.1 A: Concentrates

1.2.2 A: Roughages

1.2.3 A: Hindered fermentation

1.2.4 A: Nipple drinkers

1.2.5 A: Antibiotics

1.3.1 The process whereby the partially digested stomach content is returned to the mouth for further chewing:

1.3.2 A preventative measure whereby animals with a contagious disease are kept away from healthy animals:

1.3.3 A common canal in male animals that is used for excretion of urine and semen:

1.3.4 An organelle in the head of a sperm cell which contains genetic materials:

1.3.5 A condition where female animals are unable to conceive after several attempts of artificial insemination:

1.4.1 Chyme is food that is ball-like and is mixed with saliva in the mouth of an animal during:

1.4.2 Farming where crops and livestock are produced and sold on a large scale for profit, is called an intensive farming system.

1.4.3 The sheath encloses the primary reproductive organ.

1.4.4 Maceration occurs when the placenta, together with liquids, dries out and only a hard dried foetus remains in the uterus.

1.4.5 A powerful contraction of the muscles during mating resulting in the deposition of semen into the vagina of a cow is known as secretion.

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