Animal Husbandry - Senior Secondary 1 - Practical on organs of farm animals

Practical on organs of farm animals

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TERM: 1ST TERM

WEEK SEVEN

Class: Senior Secondary School 1

Age: 15 years

Duration: 40 minutes of 5 periods each

Date:

Subject: ANIMAL HUSBANDRY

Topic: PRACTICAL ON ORGANS OF FARM ANIMALS

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

I.)  Discuss the dgestive system of poultry bird: non – ruminant

II.)  Describe the digestive system of goat and sheep: ruminant

III.)  Preserve  vital organs of farm animals in the laboratory

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 describes and compare the digestive system of ruminant and non ruminant animals using videos and pictures where necessary.

Students listens attentively to the teacher                                                                          

STEP 2

EXPLANATION

Teacher identify and demonstrate techniques for preserving vital organs using appropriate preserving solutions

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

PRACTICAL ON ORGANS OF FARM ANIMALS

Practical Session: Comparative Anatomy and Preservation Techniques for Livestock Digestive Systems and Vital Organs

Objective:

The objective of this practical session is to provide students with a hands-on understanding of the digestive systems of poultry birds (non-ruminants) and goats/sheep (ruminants), as well as techniques for the preservation of vital organs in the laboratory.

Materials Needed:

  1. Fresh or preserved specimens of poultry birds (e.g., chicken), goats, and sheep for anatomical examination.
  2. Dissection tools (e.g., scalpels, forceps, dissecting scissors).
  3. Preserving solutions (e.g., formaldehyde, ethanol) for organ preservation.
  4. Specimen containers or jars for storing preserved organs.
  5. Labeling materials (markers, tags) for identifying specimens.
  6. Anatomy charts or diagrams for reference.
  7. Protective gear (e.g., gloves, lab coats) for handling specimens and chemicals.

Procedure:

  1. Introduction (15 minutes):

   - Provide an overview of the digestive systems of poultry birds (non-ruminants) and goats/sheep (ruminants), emphasizing anatomical differences and digestive processes.

  1. Comparative Anatomy of Poultry and Ruminant Digestive Systems (60 minutes):

   - Divide students into small groups and provide each group with specimens of a poultry bird (e.g., chicken) and a ruminant (goat or sheep).

   - Instruct students to carefully examine and compare the digestive systems of the two types of animals, focusing on the structure and function of the mouth, esophagus, stomach, small intestine, and large intestine.

   - Facilitate group discussions on anatomical similarities and differences between poultry and ruminant digestive systems, and their implications for feeding and digestion.

  1. Preservation of Vital Organs (60 minutes):

   - Provide students with fresh organs (e.g., heart, liver, kidneys) from the poultry bird and ruminant specimens.

   - Demonstrate techniques for preserving vital organs using appropriate preserving solutions (e.g., formaldehyde, ethanol).

   - Instruct students on proper labeling and storage of preserved organs in specimen containers or jars.

   - Allow students to practice organ preservation techniques under supervision, ensuring proper handling and safety precautions.

  1. Hands-on Examination and Discussion (45 minutes):

   - Encourage participants to conduct further anatomical examinations of the preserved organs, noting their external and internal structures.

   - Facilitate discussions on the importance of organ preservation for research, education, and diagnostic purposes in veterinary science and related fields.

   - Address any questions or concerns raised by participants regarding organ preservation techniques and applications.

  1. Group Presentation and Conclusion (30 minutes):

   - Invite each group to present their findings and observations from the comparative anatomical examination and organ preservation exercises.

   - Facilitate a group discussion to summarize key insights and conclusions drawn from the practical session.

  1. Conclusion (15 minutes):

   - Summarize the main points of the practical session and highlight the value of comparative anatomy and organ preservation in understanding animal physiology and pathology.

EVALUATION: Teacher evaluates the students based on the practical                    

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively