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The Biological Value of the Protein and the Apparent Digestibility of the Crude Fiber of Malt Sprouts

Macdonald College (McGill University)¹

Abstract

When 45 percent or more of the total protein of a pig ration was supplied by malt sprouts or linseed oilmeal, the linseed oilmeal replacement value of malt sprouts was 84 percent.

The apparent digestibility of the crude fiber of malt sprouts was only 8 percent as compared to 20 percent for that of wheat bran.

That the biological (replacement) value of the protein contained in malt sprouts was lower than that of linseed oilmeal protein was not considered to be a matter of difference in protein quality. Instead, it was suggested that this was largely a consequence of the low digestibility of the crude fiber of malt sprouts, which in turn resulted in a lower apparent digestibility of malt sprouts protein.

The growth-stimulating property of malt sprouts for pigs, therefore, cannot be attributed to either a superior biological value of its protein or to a high digestibility of its crude fiber.

¹ Department of Nutrition, P. Que., Canada.