Poultry Judging Practice Test 2026 – Complete Exam Prep

Question: 1 / 515

Which hormone stimulates oviposition (laying of eggs)?

Testosterone

Insulin

Oxytocin

Oviposition, or the laying of eggs in poultry, is primarily stimulated by the hormone oxytocin. Oxytocin is known for its role in various reproductive processes, including inducing contractions in muscles associated with the reproductive system, which facilitates the laying of eggs. In poultry, the presence of oxytocin triggers the oviposition reflex, allowing the eggs to be expelled from the oviduct and laid.

Other hormones mentioned have different roles: testosterone is more related to male reproductive functions and behaviors, insulin is involved in glucose metabolism and energy regulation, and estrogen plays a crucial role in the development of follicles and the overall reproductive cycle but does not directly trigger the act of laying eggs as oxytocin does. Understanding the specific roles of these hormones is essential in the context of poultry reproduction and egg production practices.

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Estrogen

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