12 FISHERY INDUSTRIES OF THE UNITED STATES. 



Samples of shrimp meal analyzed contain from 43 to 56 per cent 

 protein. Following is an analysis of one sample: 



Per cent. 



Moisture 5. 03 



Ash 29. 89 



Fat (ether extract) 3. 62 



Protein 47. 44 



Undetermined •- 15. 02 



The Bureau of Animal Industry of the United States Department 

 of Agriculture has cooperated very effectively with the Bureau in 

 this field in the conduct of feeding experiments with fish and shrimp 

 meals to hogs and in directing the attention of hog growers to the 

 value of these products as feeds, thus rendering material aid in 

 assuring those in the fisheries of a market for their product. In an 

 experiment of the Bureau of Animal Industry, conducted at the 

 Government Experiment Station, Beltsville, Md., in which two lots 

 of 15 pigs were fed fish meal and shrimp meal for a period of 91 days, 

 the results indicated that shrimp meal was fully the equal of fish 

 meal. It is believed that elements other than the proteins, such as 

 the mineral elements, vitamines, etc., tend to enhance the value of 

 this material. 



Grayfish meal has been furnished the Bureau of Animal Industry 

 for a feeding test, the results of which were comparable to those 

 obtained by feeding with menhaden meal. Although the grayfish 

 meal contained a high percentage of oil, no flavor of fish could be 

 detected in the flesh of the hogs killed at the end of the feeding 

 experiment. Arrangements are being made for additional feeding 

 tests to ascertain more definitely the safety with which meals con- 

 taining a high oil content or made from decomposed materials may 

 be used. 



The American consul at Odense reports that in Denmark a shell- 

 fish meal made from the blue mussels which are found in large num- 

 bers along the Danish coast is now on the market in that country 

 as a poultry feed and has proved very satisfactory for increasing 

 egg production. An analysis of the dried meal made at an agri- 

 cultural experiment station quoted from Commerce Report No. 32, 

 February 7, 1919, follows: 



Lime (in the form of ashes), 71.41 per cent; sugar, starch, and other organic matter, 

 13^1 per cent; nitrogenous matter, 11.64 per cent; fats, 1.68 per cent; and water, 

 2.0(5 per cent. 



Comparatively little fish meal was produced in this country prior 

 to 1914. Beginning with that year the production on the west coast 

 has steadily increased, the 1918 production of the coastal States and 

 Alaska being about 8,684 tons. An assistant who visited the prin- 

 cipal centers of production in southern California during the year 

 reports no differences in character of material or process of manu- 

 facture of meal or scrap except in a few instances in which the ground 

 scrap is called meal. Until more detafled information is available 

 regarding the results of feeding fish meal it is believed that only fresh 

 waste should be used in its manufacture and badly decomposed, waste 

 made into scrap for fertihzer. Some kinds of meal do not require 

 grinding. Tliis is stated to be the case for meal made from sardine? 

 m which the steam, or so-called batch, drier is used. If a hot-air 

 drier is employed, grinding may be necessary to reduce the material 



