JAMB CBT 2024 - Candidates, Schools, Centres, Resellers - Get Ready!
JAMB CBT Software 2024 - Free Download

2008 WAEC Agricultural Science Theory (a) Name four breeds of rabbits. [2 marks] (b) Give two reasons why oestrus detection...

Agricultural Science
WAEC 2008

(a) Name four breeds of rabbits. [2 marks]

(b) Give two reasons why oestrus detection is important in farm animals. [2 marks]

(c) State four functions of each of the following hormones in farm animals. (i) androgen; (ii) oestrogen. [8 marks]

(d)(i) List two viral diseases of poultry. (ii) List two ecto-parasites of poultry [4 marks] 

JAMB CBT Software 2024 - Free Download
JAMB CBT Mobile App 2024 - Free Download
JAMB CBT 2024 - Candidates, Schools, Centres, Resellers - Get Ready!
JAMB 2024 Whatsapp Group - Join us here
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Explanation

(a)Breeds of Rabbits New Zealand white, California white, Chinchilla, Giant Flemish, New Zealand red, Champagne D'argent, Checkered giants, Beveren, Angora, Dutch, Loop, English Spot, Crosses

 (b) Reasons why oestrus detection is important in farm animals - Enables the farmer to know when best his animals can be serviced - Enables the farmer to properly manage the animal - Enables the farmer to start preparation for the impending pregnancy. 

(c) Functions of hormones in farm animals (

i) Androgen - Initiate spermatogenesis (sperm formation)

- Is responsible for the initiation of male secondary sex characteristics

- Maintains the sex drive (Libido)

- Enhances muscular and skeletal growth

- Reduces fat deposition

- Promotes the growth of accessory sex glands

- Sustains the life of sperms in the epididymis

(ii) Oestrogen

- Stimulates the development of female secondary sex characteristics e.g. heat behaviour

- Promotes the production of eggs through oogenesis

- It is concerned with the preparation of the uterus lining for the reception of the fertilized ovum

- It increases blood supply as well as the water content of the uterus

- It stimulates the growth of the duct system in the mammary glands (udder)

- in the oviduct, it increases cilliary activities and mucous secretion.

- Induces the rapid multiplication of epithelum in the vagina 

(d)(i) Viral diseases of poultry: Newcastle, Gumboro, Mareks, Bird Flu/Avian • influenza, Fowl pox

(ii) Feto-parasites of poultry: Lice, Mites, Flea, Ticks


Report an Error Ask A Question Download App
JAMB CBT Software 2024 - Free Download
JAMB CBT 2024 - Candidates, Schools, Centres, Resellers - Get Ready!
JAMB CBT Mobile App 2024 - Free Download
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
JAMB 2024 Whatsapp Group - Join us here

Contributions ({{ comment_count }})

Please wait...

{{ settings.no_comment_msg ? settings.no_comment_msg : 'There are no comments' }}

Quick Questions

Post your Contribution

Please don't post or ask to join a "Group" or "Whatsapp Group" as a comment. It will be deleted. To join or start a group, please click here

{{ quote.posted_by.display_name }}
{{ settings.form_textarea_description }}
 
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
JAMB 2024 Whatsapp Group - Join us here
JAMB CBT Software 2024 - Free Download
JAMB CBT Mobile App 2024 - Free Download
JAMB CBT 2024 - Candidates, Schools, Centres, Resellers - Get Ready!
JAMB CBT Software 2024 - Free Download
JAMB CBT 2024 - Candidates, Schools, Centres, Resellers - Get Ready!
JAMB 2024 Whatsapp Group - Join us here
JAMB CBT Mobile App 2024 - Free Download