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The Composition and Apparent Digestibility of the Flat Pea (Lathyrus Silvestrus Wagneri)¹

Bureau of Dairy Industry, United States Department of Agriculture and Western Washington Experiment Station, Puyallup, and Washington Agricultural Experiment Station, Pullman²

ABSTRACT

Digestion experiments with three wether lambs were conducted to determine the apparent digestibility of Flat Pea (Lathyrus silvestrus Wagneri) hay.

The crude protein which constituted 25.3 per cent of the dry matter of the Flat Pea hay had an average digestibility coefficient of 78.3 per cent. The apparent digestibility of the crude fiber was 41.8 per cent; ether extract, 45.8 per cent; nitrogen-free extract, 65.2 per cent; and ash, 51.6 per cent.

On the basis of the composition and apparent digestibility as determined in this experiment, 100 pounds of dry matter would contain 19.7 pounds of digestible crude protein and 58.4 pounds of total digestible nutrients.

The results indicate that the Flat Pea forage is palatable and highly nutritious.

¹ Published as Scientific Paper No. 336, College of Agriculture and Experiment Station, State College of Washington.

² The writers are indebted to Mr. Vernon Miller who conducted the analytical work involved in this investigation.