Date of this Version
A cattle growth trial, two lamb digestion trials and a lamb growth trial evaluated hog hair meal as a protein source for ruminants. Although no differences in protein efficiency were found in the cattle trial, hair meal tended to be lower in protein efficiency than feather meal and soybean meal and true nitrogen digestibility of hair meal was lower than both feather meal and soybean meal. Treatments of additional steam pressure and hydrolysis time were applied to raw hog hair. True nitrogen digestibility increased as hydrolysis time and steam pressure increased. Metabolizable protein supplied by hair meal was increased by added hydrolysis time.