Topics:
Animal Refresher, Poultry Science
Site of Fertilization in Poultry
The site of fertilization in poultry is:
- Ampulla
- Infundibulum — Correct Answer
- Magnum
- Isthmus
Explanation:
Correct Answer: Infundibulum
In poultry, the site of fertilization is the Infundibulum. This is where the ovum (yolk released from the ovary) is collected and fertilized by spermatozoa within approximately 15 minutes of ovulation.
Comparison: Fertilization Sites
- Mammals (e.g., cow, sheep): Fertilization occurs in the Ampulla of the fallopian tube.
- Poultry (hen): Fertilization occurs in the Infundibulum of the oviduct.
Parts of the Poultry Oviduct (Sequence)
| Part | Length | Time | Function |
|---|---|---|---|
| Infundibulum | 10 cm | 15 min | Collects yolk; site of fertilization |
| Magnum | 38 cm | 3 hrs | Secretes albumin (egg white) |
| Isthmus | 10 cm | 1 hr 15 min | Secretes shell membranes |
| Uterus | 10 cm | 21 hrs | Secretes shell, pigment, cuticle |
| Vagina | 5 cm | — | Holds egg until oviposition |
Why Other Options Are Wrong
- Ampulla → site of fertilization in mammals, not poultry.
- Magnum → secretes albumin; fertilization has already occurred before this.
- Isthmus → secretes shell membranes; too late for fertilization.
📚 About this Topic — Animal Refresher
This multiple choice question is from Animal Refresher, Poultry Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.
