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The metabolizable energy value for oats for various bushel weights


The metabolizable energy value for oats for various bushel weights



Poultry Sci 40(2): 327-333



Fourteen samples of oats varying in bushel weight from 22 to 40 pounds and 5 different samples of oat hulls were assayed for metabolizable Calorie (M. C.) content. Turkey poults were the experimental animals used for all assays. Each lot of oats assayed was used to calculate a linear regression line when bushel weight and percent groat each were correlated with the respective M.C. value. The energy value was found to be more closely correlated to percent groat than the bushel weight. On the basis of these data oats having test weights of 32 and 40 pounds per bushel should contain approximately 1143 and 1319 M. C. per pound, respectively. Oats containing 50 and 80% groats should contain about 900 and 1300 M. C, respectively. Oat hull values were quite variable, with a range of 200 to 500 M. C.per pound. The values vary because of weed seed, cracked grain and possibly some groat contamination. The best value, according to these data, is about 230 M. C. per pound of hulls. The M. C. value of oats change directly with increase or decrease in bushel weight. Changes in bushel weight are brought about by environment and mechanical means. The length of the hull of threshed oats actually decreases and is inversely proportional to M. C. value and the length of the groat which increases.

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