1 cost in pork production (60-70 %)
Considerable variation in feed costs amongst
Important for its impact on:
Animal performance from breeding to finish
Gains, feed intake and feed efficiency
Meat quality (tender
Role: to provide energy to the animal
Traditionally, this feedstuff classification is made up of
grains and grain by-products: Now includes other
Will make up most of the cost of the ration for most food
animal production specie
Nutrient Requirements, and Ration Formulation
Methods Of Measuring Digestibility
Why do we want to know how digestible
diets/feedstuffs are ?
If the product isnt digestible, can the animal
absorb any nutrients?
Roughages or Forages
Bulky feeds: Effect on gut fill + DMI ?
High fiber, low energy: What farm
animal species would you most likely
not feed these to ?
High in structural CHO
Cell wall carbohydrates
> 18% CF (35 t
Goal: do we care about protein per se or ?
Want to avoid overfeeding protein
2 major reasons
Monogastric + suckling (nursing) ruminant
Laying Hen Nutrition
Where are the layers coming from?
Producing his/her own: Control their condition in regards to body weight (BW) and fat
Will female cycle and will she have enough size to eat feed to meet requirements?
What does this mean?
Background on Broiler Production
How you feed dependent on target market for
See table on next slide for ages and body weights
when marketing a specific class of bird
Feed as a % of total production costs 65-80%
3 to 4 phases in production cyc