Animal Husbandry - Senior Secondary 1 - Functions of parts/organs in farm animals

Functions of parts/organs in farm animals

TERM: 1ST TERM

WEEK FOUR

Class: Senior Secondary School 1

Age: 15 years

Duration: 40 minutes of 5 periods each

Date:

Subject: ANIMAL HUSBANDRY

Topic: FUNCTIONS OF PARTS/ORGANS OF FARM ANIMALS

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

I.) Identify the functions of digestive system of ruminants

II.) Identify the functions of digestive system of non-ruminants

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures,

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S

ACTIVITY

STEP 1

INTRODUCTION

The teacher explains the functions of the  digestive system in ruminants animals.

Students listens attentively to the teacher                                                                          

STEP 2

EXPLANATION

Teacher discusses the functions of the digestive system in non ruminant animals.

Students exhibit attentiveness and active engagement

STEP 3

NOTE TAKING

The teacher writes a summarized

note on the board

The students

copy the note in

their books

 

NOTE

FUNCTIONS OF PARTS/ORGANS OF FARM ANIMALS

Functions of the digestive system of ruminants

  1. Fermentation: Ruminants have a specialized stomach with four compartments where microbial fermentation occurs, aiding in the breakdown of cellulose and other complex carbohydrates from plant material.
  2. Nutrient Absorption: After fermentation, nutrients such as volatile fatty acids, amino acids, and vitamins are absorbed in the small intestine.
  3. Re-chewing: Ruminants regurgitate and re-chew partially digested food (cud) to further break down plant matter and enhance digestion.
  4. Water Absorption: The large intestine absorbs water from the remaining digesta before excretion.

Functions of the digestive system of non-ruminants

  1. Mechanical Digestion: Breaking down food physically through chewing in the mouth and churning in the stomach.
  2. Chemical Digestion: Enzymes break down food into smaller molecules that can be absorbed.
  3. Absorption: Nutrients, including carbohydrates, proteins, fats, vitamins, and minerals, are absorbed in the small intestine.
  4. Bile Production: The liver produces bile, which aids in the digestion and absorption of fats in the small intestine.
  5. Excretion: Waste products are eliminated from the body through the large intestine and rectum as feces.

EVALUATION: 1. Identify and describe 5 functions of the digestive system in ruminants.

  1. Identify and discuss 5 functions of the digestive system in non-ruminant animals.

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively