Studies on All-Vegetable Protein Rations

Value of Desmodium, Pigeonpea Fodder, and Guatemalan and United States Alfalfa Meals in Rations for Baby Chicks

“…The slower growth rate of the group which received the basal diet plus cod liver oil indicates that these meals were supplying essential nutrients other than carotene, probably B complex vitamins. This is in accord with the recent report of Emerson, Houston, Thayer, and MacVicar (1949), who observed that alfalfa leaf meal and cereal grass clippings produced a similar growth response when added to an all-vegetable-protein diet which contained vitamin A. These workers also showed that all-vegetable-protein rations were progressively improved by supplementation with a combination of crystalline vitamins of the B complex, condensed fish solubles, and a 1:20 liver powder.…”

Fish Meal and the Response of Chicks to Antibiotics

“…For some years, evidence has been accumulating which indicated that certain feed ingredients such as fish meal, fish solubles, liver, dried milk, dried whey, dried distillers' solubles, and dried brewers' yeast contained an unidentified growth factor or factors required by chicks and poults- Berry et al (1943Berry et al ( , 1945, Bird et al (1948), Brant and Carver (1947), Combs et al (1948), Emerson et al (1949), Hammond and Titus (1944), Heuser et al (1946a,b), Hill (1948), Hill and Van Poucke (1947), Johnson et al (1942), McGinnis et al (1947), Mishler et al (1947Mishler et al ( , 1948, Nichol et al (1947), Novak et al (1947), Robblee et al (1947), Schumacher et al (1940), Synold et al (1943) and others. However these investigations were carried out prior to the identification of vitamin B12, which complicates the interpretation of the results.…”