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The Value of Ground Whole Grains versus By-Products in Concentrate Mixtures for Dairy Cows¹

Department of Animal Husbandry, Cornell University, Ithaca, N. Y.

ABSTRACT

A series of three experiments comparing the feeding value of different concentrate mixtures indicated that there was little or no difference in the palatability of concentrate mixtures that differed widely in the ingredients used. A mixture containing 76 per cent of farm-grown grains was equal in promoting milk production and in palatability to a standard concentrate mixture throughout a continuous study of 26 weeks' duration. Similar results were obtained in a double reversal trial.

Another experiment involving four concentrate mixtures containing widely different ingredients showed there was little difference in feeding value among the four mixtures. Abrupt changes from one mixture to another had no unfavorable effect on feed consumption. All mixtures proved equally palatable. Body weight essentially was unaffected by the different concentrate mixtures.

¹ Acknowledgment is made to the Cooperative G.L.F. Exchange, Inc., which provided financial assistance for conducting these experiments, and to Mr. F. J. Bell, who collected part of the data presented.

² Present address: Rhode Island State College, Kingston.

³ Deceased.