Abstract

ABSTRACT DATA on the hydrogen ion concentration in the intestine of the chick have been reported by Farner (1942), McLaughlin (1931), Mayhew (1935). It is difficult to compare results obtained by different investigators because of differences in the methods used. There is also the possibility that differences in the diets fed may have been responsible for some of the differences observed. Mussehl, Blish and Ackerson (1935) and Olson and Mann (1935) found that variations in the diet did not appreciably change intestinal pH. Heller and Penquite (1936) showed that although basic salts may raise pH in the crop, gizzard and proventriculus, the intestinal pH was not appreciably affected. Beach (1925) showed that cecal pH was rapidly reduced by feeding lactose or milk. Ashcraft (1933) found that pH in the duodenum and ileum was increased while pH of the cecal contents was decreased when milk products were fed. Wiseman, Bushnell and Rosenberg . . .

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