BLOOD MEAL 127 



is made from haddock and from herrings (Clupea, etc.). Fish meal made 

 from cod is less valuable, but rich in phosphate of lime. Fish meals con- 

 tain from 45 to 58 per cent of crude protein (40 to 44 per cent digest- 

 ible albumen) and from 2 to 20 per cent of fat with large amounts (30 

 per cent) of phosphate of lime which is furnished by the bones. The 

 starch value of these products, when they are low in fat, is about 44 per 

 cent; when rich in fat, about 64 per cent. The digestive coefficient is 

 about 90 per cent. They are used as feeding stuffs in the same manner 

 as the meat meals and feed lime. The more fatty fish meals are liable 

 to impart a fishy taste to the meat and bacon and possibly also to the milk. 

 This is not the case with the meals of low fat content. Anthrax spores 

 and pseudo-anthrax bacilli have repeatedly been found in fish meals as 

 a result of contamination with anthrax cadavers, etc. Fish do not con- 

 tract anthrax. 



Blood meal, obtained by drying and grinding the blood of slaughtered 

 animals, contains about 85 per cent of crude protein (72 per cent digest- 

 ible albumen) and 2.5 per cent of fat. When properly made, especially 

 when not subjected to too high temperature when drying, it is highly di- 

 gestible (digestive coefficient as high as 90 per cent), agrees well with 

 animals, and is a good dietetic feed in case of anemia. The starch value 

 is about 72 per cent. It is used as a feed for weakly colts, anemic sheep, 

 fattening swine (Zoubek, Zaitscheck, etc.), 1 to 2 pounds per 1,000 

 pounds live weight. It is also used in the preparation of cakes or bis- 

 cuits and to supplement molasses feed mixtures (p. 86 and 109). 



Paunch mixed feed is made from the dried and aerated paunch con- 

 tents of slaughtered animals, 40 per cent, molasses 30 per cent, cadaver 

 meal 17 per cent (low-grade tankage), and 13 per cent of potato pulp. 

 It is marketed under the name of Paunch mixed feed. Its composition 

 is, from its nature, variable. Its nutritive value is determined mainly 

 by the tankage, molasses and potato pulp that have been added to it. 

 The feeding value of the paunch contents of slaughtered animals is us- 

 ually equal to that of straw. Their use is therefore not justified even on 

 an economic basis. 



According to Hohncamp, Nolte and Blanck, paunch mixed feed con- 

 tains : 



Cattle seem to like this feed fairly well. 



Glue concentrate consists of the subcutaneous connective tissue with 

 the adhering particles of flesh, tendons, etc., that have been scraped from 

 the hides of slaughtered animals, dried and ground. Its composition var- 

 ies. A sample which was supposed to contain some bone meal in addition, 

 analyzed by Hanssen, contained 7.1 per cent of water, 56.1 per cent crude 



