Ch 16 - Poultry nutrition

Question 1

Changes in poultry genetics and productivity during the last 50 years

Answer 1

Slaughter weights doubled, 60% reduction in feed per gain

Question 2

feed additives in broiler production

Answer 2

some don’t use antimicrobial

Question 3

Embryonic diets

Answer 3

embyonic to post-hatch transition is a major metabolic challenge for chicks

Question 4

Nutrient deficencies

Answer 4

Daily feed consumption may decrease or mildly increase, toxicity usually decreases consumption

Question 5

Carbohydrates

Answer 5

cereal grains, readily digested, must be processed. Young ones need crumbles

Question 6

Grit

Answer 6

essential with whole grains, grinds feed in gizzard. not needed with mash or pellets or crumbles

Question 7

Amino acid requirements

Answer 7

Arginine, glycine, cysteine

Question 8

some protein sources

Answer 8

soybean meal, cottonseed meal, distillers grains,

Question 9

lipids

Answer 9

increase overall energy concentration

Question 10

interest in sexing birds

Answer 10

large difference in nutrient requirements, body size. sexing at hatch is labor intensive.