Why is a long daily photoperiod used in commercial laying hens?
Correct answer: B. To stimulate reproductive activity
- A. To prevent feather pecking
- B. To stimulate reproductive activity
- C. To reduce drinking water intake
- D. To increase chick body temperature
Explanation
Light stimulates the hypothalamic-pituitary-gonadal system and helps maintain reproductive activity in mature hens. It is not primarily used to control temperature, water intake, or feather pecking.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Poultry Science
Covers the breeds, anatomy, physiology, nutrition, housing, breeding, incubation and management of chickens and other domestic poultry. It includes brooding, vaccination, biosecurity, egg formation and quality, meat and egg production, common diseases, and the distinction between layer and broiler management.
Practise Poultry Science
60 free Poultry Science MCQs from Veterinary Science, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Veterinary Science questions like this
Veterinary Science is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Poultry Science questions
What is the main function of medullary bone in laying hens?
Newcastle disease in poultry is caused by which pathogen?
What is the primary respiratory role of air sacs in birds?
Fowl cholera in poultry is most commonly caused by which bacterium?
Which amino acid is commonly the first limiting amino acid in cereal-based poultry diets?
What is the principal purpose of candling a developing chicken egg?