Heifers (756 lb, 312 head) were used in
a finishing study to evaluate the effects of
peroxide-treated feather meal on animal
performance and carcass characteristics.
Diets contained 3.0% of peroxide-treated or
untreated feather meal, and were fed ad
libitum. Treatment of feather meal with
hydrogen peroxide increased in situ protein
degradabilities by 56%, but did not
significantly alter feed intake or feed
efficiencies. Although not statistically
different, gains were 2.1% greater for
heifers fed peroxide-treated feather meal.
Hot carcass weights also averaged 6
pounds heavier for heifers fed diets
containing peroxide-treated feather meal.
Marbling tended to be lower, but carcasses
grading USDA Choice tended to be higher
for heifers fed diets containing peroxide-treated
feather meal.
