Poultry Flashcards
(49 cards)
Phase feeding in poultry nutrition is used because:
A) Nutrient requirements do not change over time
B) It simplifies feed formulation
C) Nutrient requirements change within a bird’s lifetime
D) Birds require the same diet throughout their life
c
What is the main reason for feed restriction in broiler breeders?
A) To reduce feed costs
B) To increase egg size
C) To prevent obesity and associated reproductive problems
D) To enhance feather growth
c
During what age range is a “Starter” diet typically given to broilers?
A) 0-10 days
B) 11-24 days
C) 25-39 days
D) 40-51 days
a
What is a primary consideration when formulating diets for turkeys compared to chickens?
A) Lower protein levels
B) Higher energy content
C) Different growth curves and carcass composition
D) Less phase feeding
C
Which amino acid’s digestible content decreases from the Starter to the Withdrawal phase in a typical broiler feeding program?
A) Lysine
B) Methionine
C) Met + Cys
D) All of the above
D
Which condition can result from a deficiency of Vitamin E in poultry?
A) Encephalomalacia
B) Polyneuritis
C) “Curled-toe” paralysis
D) Anemia
A
What is the main source of energy in poultry diets in Western Canada?
A) Corn
B) Wheat
C) Soybean meal
D) Canola meal
b
The inclusion of enzymes in poultry diets is primarily for:
A) Enhancing flavor
B) Increasing nutrient digestibility
C) Acting as a pellet binder
D) Serving as a pigment
b
Which is a significant dietary component for the Starter phase in broiler nutrition?
A) Metabolizable Energy
B) Crude Protein
C) Digestible Lysine
D) All of the above
D
During which phase does a broiler’s diet have the highest Metabolizable Energy content?
A) Starter
B) Grower
C) Finisher I
D) Finisher II
D
For laying hens, the transition from “Grower” to “Pre-lay” diet typically occurs at:
A) 10 weeks
B) 18 weeks
C) 24 weeks
D) 30 weeks
B
Synthetic amino acids added to poultry diets include all except:
A) D,L-Methionine
B) L-Lysine HCl
C) L-Threonine
D) L-Glutamine
D
A common sign of vitamin A deficiency in poultry is:
A) Keratinized mucus glands
B) Polyneuritis
C) “Curled-toe” paralysis
D) Dermatitis
A
A critical phase in laying hen nutrition for preparing birds for egg production is:
A) Starter
B) Grower
C) Developer
D) Pre-lay
D
For laying hens, the “Phase 1” diet supports production during:
A) Initial lay period
B) Peak production
C) Late lay period
D) Molting period
B
What are the signs of calcium (Ca) and phosphorus (P) deficiencies in poultry?
Signs include bone abnormalities, weak skeletal structure, and potential for rickets in young birds and osteoporosis in laying hens.
What is a common sign of Vitamin A deficiency in poultry?
Keratinized mucus glands and xerophthalmia (dry eye).
What deficiency causes symptoms similar to calcium/phosphorus deficiencies in poultry?
Vitamin D3 deficiency; it leads to poor calcium and phosphorus metabolism, resulting in similar bone abnormalities.
What are the signs of Vitamin E deficiency in poultry?
Encephalomalacia (crazy chick disease), exudative diathesis (edema), and muscular dystrophy.
What does a Vitamin K deficiency lead to in poultry?
Impaired blood clotting and increased bleeding tendencies.
Which vitamin deficiency causes “curled-toe” paralysis in growing chickens?
Riboflavin (Vitamin B2) deficiency.
What are the signs of a Niacin deficiency in poultry?
Severe disorders in the skin and digestive organs, and bowed legs.
What are the general signs of protein and essential amino acid deficiencies in poultry?
Reduced growth, poor feathering, decreased egg production, and increased susceptibility to diseases.
What happens when poultry diets are deficient in energy?
Birds will adjust their feed intake to meet energy requirements; however, severe energy deficiency can lead to reduced growth and productivity due to physical limitations on feed intake.
