1909.] PUBLIC DOCUMEiST — No. 31. 149 



ANIMAL RESIDUES AS A FOOD FOR FARM 



STOCK. 



BY J. B. LINDSEY, 



1. Meat and Fish Meals. 



As a result of the preparation of beef extract according to the 

 formula of J. von Liebig, which was first undertaken in Uru- 

 guay in 18G3, there was placed upon the German market a 

 large amount of dried extracted material, — Fleischfuttennehl, 

 — which was soon recognized as a suj^erior j^rotein food for all 

 kinds of farm stock. C. Voit/ as a result of investigations re- 

 ported in 1869, showed that, contrary to the generally held 

 opinion, this extracted beef was quite fully digested. The first 

 feeding experiments were carried out to demonstrate its value 

 for farm animals in Uruguay in 1872, after plans submitted by 

 Liebig.^ Since 1872 numerous brands of beef and fish meals 

 have been oifered for sale in Europe, and a great variety of 

 experiments with horses, cattle, sheep, and swine have been 

 made, a most excellent summary of which may be found by con- 

 sulting Shenke's valuable publication.^ 



The consensus of opinion — based upon the above-mentioned 

 experiments — has been that such material when properly pre- 

 pared is highly digested, and furnishes an excellent source of 

 protein for dairy stock, horses, sheep, swine and poultry. An 

 exception is made to residues made from decayed or badly dis- 

 eased animals (Kadavermehl). European meat meals of the 

 best grade have been shown to contain an average of 72 to 73 

 per cent, protein, 13 to 14 per cent, fat, 3.5 to 4.5 per cent, ash 

 (263 analyses), and to be 90 or more per cent, digestible. 



• Ueber Untersuchungen der animal, und vegetab. Nahrung. Miinchen, Sitzungsber. d. 

 math.-pliys. Klasse, 1869. 



2 Landw. Versuchsstationen .59 Bd., 1903; also Die Futtermittel des Handels von V. 

 Shenke, p. 737, pub. by P. Paray, Berlin. 



