Back to Course

SS3: AGRICULTURAL SCIENCE - 1ST TERM

0% Complete
0/0 Steps
  1. Crop Improvement | Week 1
    9 Topics
    |
    1 Quiz
  2. Animal Improvement | Week 2
    6 Topics
    |
    1 Quiz
  3. Animal Health Management I - Introduction | Week 3
    7 Topics
    |
    1 Quiz
  4. Animal Health Management II | Week 4
    5 Topics
    |
    1 Quiz
  5. Animal Health Management III | Week 5
    7 Topics
    |
    1 Quiz
  6. Aquaculture | Week 6
    11 Topics
    |
    1 Quiz
  7. Apiculture or Bee-keeping | Week 7
    10 Topics
    |
    1 Quiz



Lesson Progress
0% Complete

Topic Content:

  • Methods of Animal Improvement
    • Introduction
      • Advantages & Disadvantages of Animal Improvement
    • Selection
      • Types of Selection
      • Advantages & Disadvantages of Selection

There are three methods of animal improvement. These are Introduction, Selection and Breeding. We will discuss Introduction and Selection in this Topic and Breeding in the next.

A. Introduction:

This is the bringing in of animals of known traits to flocks for breeding purposes. By this, traits which are absent from a flock can be achieved by breeding programmes. Before the introduction of such animals from another country (exotic breeds), one must be sure that such breeds possess higher quality characteristics compared to the local breeds. Different breeds of farm animals exist and these include local breeds, imported breeds and the cross breed.

The local breeds are usually small animals, slow-maturity, poor producers, but adapted to the local environment and resistant to many diseases. The exotic (imported) breeds are big animals, early-maturing, and good producers but may not adapt to the local environment and not be resistant to many diseases. To obtain a balance, the exotic breeds are used to mate with the local breeds to obtain cross breeds which will now combine all the good qualities of exotic and local breeds.

 

You are viewing an excerpt of this Topic. Subscribe Now to get Full Access to ALL this Subject's Topics and Quizzes for this Term!

Click on the button "Subscribe Now" below for Full Access!

Subscribe Now

Note: If you have Already Subscribed and you are seeing this message, it means you are logged out. Please Log In using the Login Button Below to Carry on Studying!

Responses

Your email address will not be published. Required fields are marked *

error: Alert: Content selection is disabled!!