6_Introduction to Poultry

Question 1

In-ovo vaccination occurs at how many days incubation?

Answer 1

18 days

Question 2

What are xanthophils?

Answer 2

Feed additive such as yellow corn, alfalfa meal & corn gluten meal

Question 3

What is the most common skeletal abnormality of chicks?

Answer 3

Rickets disease–due to lack of calcium and/or vitamin D

Question 4

Cage layer fatigue is characterized by pathological fractures & thin shelled eggs. Death can occur in 1-3 days without supplementation of what?

Answer 4

Calcium

Question 5

This syndrome is often associated with Layer Fatigue and is common in high producing obese hens. What is it?

Answer 5

Fatty Liver Syndrome

Question 6

Perosis is characteristic pathology of what nutritional deficiency?

Answer 6

Manganese Deficiency

This is “Slipped Tendon”

Question 7

What are three major pathologies associated with vitamin E deficiency in poultry?

Answer 7

Exudative diathesis (severe edema)
Muscular Dystrophy ("white muscle disease")
Encephalomalacia ("Crazy Chick Disease")

Question 8

This vitamin deficiency is also seen in birds & reptiles, but in poultry it is characterized by squamous metaplasia, hyperkeratosis, ataxia and swelling of the eyes. What is it?

Answer 8

Hypovitaminosis A

Question 9

Niacin deficiency is characterized by what is ducklings vs. goslings?

Answer 9

Bowed legs (ducklings) & perosis (goslings)

Question 10

Curled toe paralysis & parrot beak are associated with what B vitamin deficiency?

Answer 10

Riboflavin (Vitamin B2)

Question 11

A chicken presents to you with obvious respiratory signs and cyanosis of the legs & comb.What is the most likely diagnosis?

Answer 11

Avian influenza (mild form)

Question 12

What is the most common upper respiratory disease of chickens in the USA? Morbidity reaches near 100% and is characterized by abnormal eggs with respiratory signs.

Answer 12

Infectious Bronchitis (Coronavirus)

Question 13

A chicken presents to you with obvious respiratory signs & paralysis. What is the most likely diagnosis?

Answer 13

Newcastle Disease (Paramyxovirus)

Question 14

What are the four forms of Newcastle Disease and which are reportable?

Answer 14

Lentogenic, Mesogenic, Velogenic, and Viscertropic velogenic (reportable)

Question 15

T/F: Infectious laryngotracheitis is a respiratory disease of adult poultry?

Answer 15

True

Question 16

Compare & Contrast the wet vs. dry forms of Fowl Pox.

Answer 16

Cutaneous (dry) form: wart like nodules around face, eyes, combs & wattles; a warm weather disease

Diphtheritic (wet) form: white nodules/plaques on oropharynx, larynx & trachea; can coalesce causing asphyxiation

Question 17

What is the most ecomonically important disease of Turkeys?

Answer 17

Fowl cholera