Math Formulas Flashcards
(14 cards)
hatchability
hatched / total eggs = X / 100
infertility
100 - hatchability
feed conversion
# of chicks * live weight = X lbs. of feed / X = feed conversion
average carcass weight
% carcass yield / 100 = X / live weight
breast meat weight
average carcass weight * % of breast meat = X
X * # of birds = breast meat (in lbs)
daily manure output
# of birds / 100 = X X * pounds of daily manure produced = daily manure output
price per pound
avg lbs each * # of birds = X
auction price / X = price per pound
breast meat yield (per carcass)
avg breast meat wt / avg carcass wt = X / 100
feed conversion (per dozen eggs)
% production rate / 100 = X / # of birds
X * # of days = y
y / 12 = feed conversion per dozen eggs
mortability
starting # of birds - finish # of birds = X
X / starting # of birds = X / 100
hen-day production (per day)
total # of eggs/7= X
X / # of hens = %
hatchability of settable eggs
total # of eggs - unsettable = X X - infertile = y # of chicks hatched / y = z / 100
feed consumption
# of broilers * feed conversion = X X * avg live wt = feed consumption in lbs
total profit
avg carcass wt * profit margin = X
X * total birds sold = total profit