Growth-Promoting Effect of Aureomycin on Turkey Poults

Abstract

An “animal protein factor” supplement prepared from Streptomyces aureofaciens fermentations was found to produce growth responses in chicks (Stokstad et al., 1949) and turkeys (McGinnis et al., 1949; Singsen and Matterson, 1949) in excess of the responses produced by vitamin B12. It has now been found that crystalline aureomycin hydrochloride will produce a growth response in turkey poults.White Holland turkey poults were placed on the following diet (McGinnis et al., 1949) at hatching: Ground yellow corn 20, ground wheat 14.5, soybean meal 56, alfalfa meal 2.5, ground limestone 3.5, bone ash 2.8, salt 0.5, vitamins A, D and E in corn oil (Stokstad et al., 1949) 1.0, choline chloride 0.1, manganese sulfate 0.025. Ten or eleven poults were used in each group and the results are shown in Table 1.A considerable number of cases of perosis were noted in all groups. In agreement with previous reports (McGinnis .