Studies on Feed Efficiency

WHEAT bran and wheat middlings have been shown to have relatively low digestibility according to Bartlett (1910), Kaupp and Ivey (1923), and Fraps (1928). Roberts and Carrick (1943) reported experiments which indicated that a higher percentage of bran and middlings in a ration, fed to chicks from 6 to 12 weeks of age, resulted in a greater amount of feed per unit of gain than when corn replaced the wheat products. Heuser et al. (1945) have also reported decreased efficiency and a slower growth rate with high fiber rations, involving bran and middlings. Mishler et al. (1946) found that the replacement of ground corn with 10 percent each of bran and middlings resulted in decreased growth and a greater amount of feed per unit of gain. Their results were obtained when the wheat products replaced ground yellow corn in either a simple corn and soybean oil meal ration supplemented with . . .