The Journal of biological chemistry . thetic ration. They grew at a normal rate, laid eggs on the 187thday, and were kept on the ration until they weighed 1,387 gm. Attentionis called to the fact that no vitamin C was present. Complete Ration No. 7451. per cent Meat protein Peptone Salt mixture 185 Starch Lactose Lard Roughage Vitamin A extract B « 684 Vitamin Requirements of Chicks In the absence of vitamin B, Table II, 91 per cent of the 125young chicks manifested beri-beri in varying degrees. Thiswas evidenced by a cessation of growth, drooping of the
The Journal of biological chemistry . thetic ration. They grew at a normal rate, laid eggs on the 187thday, and were kept on the ration until they weighed 1,387 gm. Attentionis called to the fact that no vitamin C was present. Complete Ration No. 7451. per cent Meat protein Peptone Salt mixture 185 Starch Lactose Lard Roughage Vitamin A extract B « 684 Vitamin Requirements of Chicks In the absence of vitamin B, Table II, 91 per cent of the 125young chicks manifested beri-beri in varying degrees. Thiswas evidenced by a cessation of growth, drooping of the wings,ruffled feathers, and general weakness. In many cases, thetypical retraction of the head and paralysis were often occurred following the polyneuritic spasms in thecase of baby chicks. In no instance did the animals on thevitamin B deficient diet show a typical case of ophthalmia or anyrickets. The presence of urates was evidenced in 16 cases out ofthe 67 autopsied. Reference will again be made to this
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbiochem, bookyear1905
