Poultry feeds and feeding / by George Robertson and H.S. Gutteridge.  : A12-2/166-1933E-PDF

"It has been the aim in this bulletin to make the subject of feeds and feeding of poultry as simple as possible. While it has seemed advisable to try to familiarize the uninformed reader with the more common scientific terms, this has been done only to such an extent as will permit the reader to study and mix feeds intelligently. Wherever terms that might be unusual to ordinary poultry keepers are used, care has been taken to explain them as simply as possible, so that any person reading the bulletin through should have no trouble in following it. While sample rations are given for each kind of stock, it must not besupposed that these are given as the only rations or even as the best rations. Eachone is typical of rations which are generally used for the purpose under considerationand have proven satisfactory in experimental trials and in actual practice. The make up of a ration should depend to a great extent upon what feeds are available bearing in mind, however, that certain essential requirements must be fulfilled"--p. 3.

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