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2025 National Semi Final biology Topic 6 Free

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Steer: a bull castrated before reaching sexual maturity · Sub-topic 1

NATIONAL SEMIFINAL STAGE 2025

Opoku Ware School (OWASS): 48

Achimota School: 27

St. Peter's SHS: 10

QUESTION

What name is given to a bull that has been castrated before reaching sexual maturity, usually to improve its behaviour and meat quality?

ANSWER: Steer.

EXPLANATION

A steer is a male bovine castrated while young (before puberty), which reduces aggressive/sexual behaviour and testosterone-driven muscle toughness, producing calmer animals with more tender, well-marbled meat. This is distinct from a "bullock," a term sometimes used for a bull castrated after reaching maturity.

PRACTICE QUESTIONS

1. What name is given to a bull castrated before sexual maturity?

ANSWER: Steer

2. What is castration?

ANSWER: Removal of the testes

3. Which hormone do the testes produce?

ANSWER: Testosterone

4. What effect does early castration have on behaviour?

ANSWER: The animal becomes calmer and less aggressive

5. What effect does early castration have on meat quality?

ANSWER: The meat is more tender

6. In which structure are the testes held?

ANSWER: Scrotum

7. Give one reason farmers castrate bulls.

ANSWER: To improve behaviour and meat quality

8. What name is given to a young female cow that has not yet calved?

ANSWER: Heifer

9. What name is given to a castrated ram?

ANSWER: Wether

10. What name is given to a castrated male horse?

ANSWER: Gelding

11. What name is given to a castrated cockerel?

ANSWER: Capon

12. What name is given to a female cow that has calved?

ANSWER: Cow