Free Poultry Science MCQs with Answers
60 Poultry Science MCQs from Veterinary Science, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
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.
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60 questions · page 1 of 3
- A. Bursa of Fabricius
- B. Thymus
- C. Spleen
- D. Caecal tonsils
Explanation: The bursa of Fabricius is the primary lymphoid organ where B lymphocytes mature in birds.
Correct answer: Bursa of Fabricius- A. Infundibulum
- B. Shell gland
- C. Isthmus
- D. Magnum
Explanation: The shell gland, also called the uterus, deposits most of the calcium carbonate that forms the egg shell.
Correct answer: Shell gland- A. 0.5
- B. 1.0
- C. 2.0
- D. 4.0
Explanation: Feed conversion ratio is calculated by dividing feed consumed by body weight gain.
Correct answer: 2.0- A. A birnavirus
- B. A retrovirus
- C. A poxvirus
- D. A herpesvirus
Explanation: Marek's disease is caused by an oncogenic herpesvirus of chickens, commonly called Marek's disease virus.
Correct answer: A herpesvirus- A. 18 days
- B. 21 days
- C. 24 days
- D. 28 days
Explanation: A chicken egg normally hatches after about 21 days of incubation at the proper temperature and humidity.
Correct answer: 21 days- A. Grinding feed mechanically
- B. Storing and moistening feed
- C. Producing digestive enzymes
- D. Absorbing most nutrients
Explanation: The crop is an enlargement of the oesophagus that temporarily stores and moistens ingested feed.
Correct answer: Storing and moistening feed- A. Pulmonary alveoli
- B. Air sacs
- C. Parabronchi
- D. Syrinx
Explanation: Gas exchange in birds occurs mainly through the parabronchi and their associated air capillaries.
Correct answer: Parabronchi- A. To improve bone formation
- B. To prevent respiratory infection
- C. To increase egg shell thickness
- D. To reduce feather pecking and cannibalism
Explanation: Controlled beak trimming reduces damage caused by pecking, especially feather pecking and cannibalism.
Correct answer: To reduce feather pecking and cannibalism- A. Eimeria
- B. Salmonella
- C. Mycoplasma
- D. Aspergillus
Explanation: Most important poultry coccidiosis is caused by species of Eimeria, which multiply in different parts of the intestinal tract.
Correct answer: Eimeria- A. Excessive heat
- B. Insufficient heat
- C. Adequate ventilation
- D. Excess dietary protein
Explanation: Chicks crowd under the brooder when they are cold and seeking additional warmth.
Correct answer: Insufficient heat- A. Infundibulum
- B. Isthmus
- C. Magnum
- D. Vagina
Explanation: The magnum is the longest oviductal region and adds most of the albumen around the yolk.
Correct answer: Magnum12. Deficiency of vitamin D in growing poultry most directly predisposes the birds to which condition?
- A. Encephalomalacia
- B. Night blindness
- C. Scurvy
- D. Rickets
Explanation: Vitamin D is required for proper calcium and phosphorus metabolism, so its deficiency causes poor bone mineralization and rickets.
Correct answer: Rickets- A. Uterovaginal sperm storage tubules
- B. Infundibular glands
- C. Shell gland lumen
- D. Ovarian follicles
Explanation: Sperm storage tubules located mainly at the uterovaginal junction can retain viable sperm for later fertilization.
Correct answer: Uterovaginal sperm storage tubules- A. High egg number and long laying life
- B. Rapid growth and efficient meat production
- C. Fine wool production and body cover
- D. Strong flight ability and migration
Explanation: Broiler breeding emphasizes rapid growth, desirable carcass yield, and efficient conversion of feed into meat.
Correct answer: Rapid growth and efficient meat production- A. They directly exchange oxygen with blood
- B. They ventilate the lungs by moving air
- C. They filter dust from inhaled air
- D. They produce surfactant for the lungs
Explanation: Air sacs act as bellows that maintain a largely one-way flow of air through the parabronchi.
Correct answer: They ventilate the lungs by moving air- A. Avian influenza virus
- B. Infectious bursal disease virus
- C. Infectious bronchitis virus
- D. Avian paramyxovirus type 1
Explanation: Newcastle disease is caused by virulent strains of avian paramyxovirus type 1, also called Newcastle disease virus.
Correct answer: Avian paramyxovirus type 1- A. It stores readily mobilized calcium
- B. It produces ovarian hormones
- C. It strengthens the keel bone
- D. It absorbs calcium from the intestine
Explanation: Medullary bone serves as a temporary calcium reserve used during eggshell formation.
Correct answer: It stores readily mobilized calcium- 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.
Correct answer: To stimulate reproductive activity- A. Salmonella enterica
- B. Escherichia coli
- C. Pasteurella multocida
- D. Clostridium perfringens
Explanation: Pasteurella multocida is the usual cause of fowl cholera, an acute septicemic disease of poultry.
Correct answer: Pasteurella multocida- A. Tyrosine
- B. Glycine
- C. Alanine
- D. Methionine
Explanation: Methionine is often limiting in diets based heavily on maize and soybean meal and is therefore commonly supplemented.
Correct answer: MethioninePoultry Science MCQs: common questions
Are these Poultry Science MCQs free?
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How many Poultry Science MCQs are on this page?
There are 60 Poultry Science MCQs in the Veterinary Science bank, shown 20 to a page with the correct answer and an explanation on each.
Does every Poultry Science MCQ have an explanation?
Yes. Each Poultry Science question shows the correct option and a written explanation of why it is correct, so a wrong answer teaches you something rather than just being marked wrong.
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