REPRODUCTIVE SYSTEM OF FARM ANIMALS
Subject:
Agricultural Science
Class:
SSS 1
Term:
Third Term / 3rd Term
Week:
Week 5
Topic:
REPRODUCTIVE SYSTEM OF FARM ANIMALS
Previous Knowledge: The pupils have previous knowledge of
Anatomy And Physiology Of Farm Animals: Digestive, Circulatory and Reproduction system
that was taught in their previous lesson.
Behavioural Objectives : At the end of the lesson, learners will be able to
- DEFINE REPRODUCTIVE SYSTEM OF FARM ANIMALS
Instructional Materials
- Wall charts
- Online Resource
- Textbooks
- Laptop
- Wikipedia
Methods of Teaching
- Role modelling
- Questions and Answers
- Explanation
- Discussion
- Recitation
- Imitation
- Story Telling
- Dramatization
WEEK FIVE
REPRODUCTION IN ANIMALS
CONTENT
REPRODUCTIVE SYSTEM OF FARM ANIMALS
Reproduction is the biological process that gives rise to new organisms (offspring) from their parent. This includes all the organs and tissues concerned with reproduction in animal. Reproduction is the ability of animals to give birth to young ones. The purpose of reproduction is to ensure continuity of life. Farm animals reproduce sexually and mostly viviparous (given birth to life form of their young). Poultry birds and fishes are oviparous (they both lay eggs and poultry brood over theirs while fishes do not). Fertilization in most farm animals is internalbut external in fishes and hormones play an important role in the processes of reproduction as well as in the development of sex-inhibited characters.
MALE REPRODUCTIVE SYSTEM
The male reproductive system include the testes which produces the spermatozoa and sex hormone called testosterone which aid the development of male secondary sexual characters. The spermatozoa are produce in the testes or testicles by a process called Spermatogenesis. The testes may be suspended (as in cattle, sheep and goat) and is protected by scrotal sac (scrotum) outside the abdominal cavity to enable the sperm cells to be produced at desired temperature. The epididymis ensures the storage maturation of sperm cells in the testes, i.e. store sperms until they are matured. The testes are connected to the uterus masculinus by vas deferens which transports sperms from testes to the uterus masculinus where mature spermatozoa are stored until they are released during mating.
Attached to the side of the urethra are accessory glands i.e. Cowper’s gland also called bulbourethral gland, seminar vesicles and prostate gland which produces slimy alkaline fluid which aids the movement of spermatozoa. The fluid together with spermatozoa results in the formation of semen, the urethra is an uro-genital organ which helps to inject sperms into the vaginal as well as the removal of urine. The urethra ends externally in penis.
FEMALE REPRODUCTIVE SYSTEM
The female reproductive system consist of a pair of ovaries that produces egg cells or ova and fallopian tubes where fertilization occurs an which transports the fertilized ovum to the uterus. The uterus is the place in the female reproductive system where the growth of foetus takes place. The cervix separates the uterus from the vagina or birth canal. The entire system ends with the vulva (labia majora and minora) to the external.
Vagina is a fibro muscular tube of 7.5 to 10cm in length, situated anterior to the rectum and anal canal and posterior to the bladder and urethra. It is the organ of copulation, deposition of semen, and exit from uterus during parturition. The accessory organ of the female reproductive system includes outermost portion of the vagina (vestibule). The cowper’s glands also called bartholin’s gland is 1.5 to 2.0cm in length located above the perineal gland. It secretes mucus to provide vaginal lubrication
Presentation :
The topic is presented step by step
Step 1: The class teacher revises the old topic
Step 2: The class teacher introduces the new topic
Step 3: The class teacher allows the pupils to give their own contributions and gives room for pupils” participation
Class Teacher and Pupils Activities. Interaction or Participation
This involves class teacher and pupils’ interaction, conversation, imitation or modeling through discussion, play method or just by recitation or asking and answering questions that are related to the topic that has just been taught.
EVALUATION
- What is reproduction in farm animals?
- Name the accessory glands located along the urethra in male animals.
- Describe the female reproductive system.
- What are the similarities of monogastric and polygastric animals in the area of digestion?
- What are the main components of circulatory system?
Conclusion :
The class teacher concludes the lesson by giving the pupils some notes on the topic that has just been taught. He goes round to mark and he does the necessary corrections.