The Comparative Nutritive Value of Yellow Corn and the Grain Sorghums Hegari and Yellow
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چکیده
The sorghum grains are of great economic importance in the arid Southwest. They are immigrant crops, native to South Africa, which have proved themselves to be well adapted for growth in the southwestern plains, for they are drought resistant and high yielding with a minimum amount of water (19).^ For this reason they are widely used in animal feeding rations in place of yellow corn, which can not be successfully grown in the drier regions (11). Dissatisfaction has frequently accompanied the use of the sorghum grains as substitutes for yellow corn in farm-animal rations, the stock feeders thereby losing confidence in the nutritive value of these grains. Reports of *'nutritional roup'' in poultry following the use of these grains in Arizona are numerous. As a part of a hog-feeding investigation conducted by the Arizona Agricultural Experiment Station,^ ground hegari was compared with yellow corn in the feeding of two lots of pigs for a period of 21 weeks. The pigs fed the corn w;ere reported thrifty and vigorous, whereas those receiving the hegari showed evidences of some nutritional deficiency, failed to conceive, and became deaf and blind. These results, however, have not been duplicated in later experimental work. Only a very limited number of tests of the nutritive value of the grain sorghums have been reported, the most recent and comprehensive being the study of the chemical and nutritive properties of a wide range of sorghum grains conducted by Heller and Green at the Oklahoma experiment station in 1925 (3), The present paper reports further upon the comparative nutritive value of yellow corn and the grain sorghums hegari and dwarf yellow milo.
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