LITERATURE CITED 



ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS 



1955. Official methods of analysis, 8th ed., Washington, D. C. 



BINKLEY, CHARLES H., and OTTO R. VASAK 



1950. Production of a friable meal from feathers. A1C - 27k, 

 Bureau of Agricultural and Ind. Chem., Agr. Res. Admin., 

 U.S.D.A. 



FSEDSTUFFS 



1956. Feathermeal used as a source of protein for lambs, vol. 

 28, p. 21. 



MEUNIER, L., P. CHAMBARD, and H. COMTE 



1927. Sur la digestion pancreatique de la laine. Compt. rend, 

 acad., vol. 181;, pp. 1208-1210. 



MITCHELL, H. H. 



192li. A method of determining the biological value of a protein. 

 J. Biol. Chem., vol. 58, pp. 873-903. 



NEWELL, G. W., and C. A. ELVEHJEM 



19lt7. Nutritive value of keratin. III. Effect of source, particle 

 size, and method of grinding. J. Nutrition, vol. 33, pp. 

 673-683. 



NISHIHARA, HATASU 



195U. Calcium oxalate content of fish scales. Science Rept., 

 Saitama University Ser. B, vol. I, pp. 15 9-161*. 



ROUTH, JOSEPH I. 



19li0. Chemical studies on powdered wool. J. Biol. Chem., vol. 

 135, PP. 175-181. 



ROUTH, JOSEPH I. 



19U2a. Nutritional studies on powdered wool. J. Nutrition, vol. 

 23, pp. 125-130. 



ROUTH, JOSEPH I. 



19l*2b. Nutritional studies on powdered chicken feathers. J. 

 Nutrition, vol. 2li, pp. 399-liOl|. 



ROUTH, JOSEPH I., and HOWARD B. LEWIS 



1938. The enzymatic digestion of wool. J. Biol. Chem., vol. 12l|, 

 pp. 725-732. 



WAGNER, JOSEPH R., and C. A. ELVEHJEM 



19U2. Nutritive value of keratins. I. Powdered swine hoofs. 

 Proc. Soc. Exp. Biol. Med., vol. 5l, pp. 391-396. 



WAGNER, JOSEPH R., and C. A. ELVEHJEM 



19U3. Nutritive value of keratins. II. Powdered swine hoofs in 

 poultry rations. Poultry Science, vol. 22, pp. 275-276. 



WILDER, 0. H. M., PAUL C. OSTBY, and BARBARA R. GREGORY 



1955. The use of chicken feather meal in feeds. Poultry Science, 

 vol. 3li, pp. 518-521;. 



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