SS2 Third Term Animal Husbandry Lesson Note – Animal Improvement

The content is just an excerpt from the complete note for SS2 Third Term Animal Husbandry Lesson Note – Animal Improvement. Check below to download the complete PDF

 CLASS:  SS 2

SUBJECT: ANIMAL HUSBANDRY

TOPIC: Animal Improvement

  CONTENTS: Methods of farm animal Improvement

(a) Introduction: Advantages and Disadvantages of introduction

(b) Selection: Advantages and Disadvantages of selection

 Sub-Topic 1: METHODS OR PROCESS OF ANIMAL IMPROVEMENT

1. Introduction
2. Selection
3. Breeding

INTRODUCTION

This is bringing animals which are not native of a place but are known to have certain desirable characters into a new place from the place of origin. Such animals are called exotic. Introduction can be by physical importation either of the animals themselves or their semen.

Advantages of Introduction

1. It enhances greater productivity
2. It enhance conscious breeding against pests and diseases
3. Breeds may perform better and able to adapt to local conditions
4. it brings about improvement on indigenous animals

Disadvantages of Introduction

1. It may introduce new diseases and pests to the area
2. There may be problem of adaptation
3. The animals may not perform as expected
4. Animals may be susceptible to local diseases and pests
5. Quarantine procedures can cause shock to animal.

Sub-Topic 2:

SELECTION

This is the method whereby a preferred animal is chosen from the population for breeding based on physical features such as growth rate, color, size, resistant to disease and pest, fertility rate, milk quantity and quality etc

TYPES OF SELECTION

(I) Natural selection

To gain full access to the note: DOWNLOAD FILE