FISH MEAL IN ANIMAL FEEDING 



397 



istry of Agriculture and Fisheries, 1919; Tressler, 1923; Tressler 

 and Wells, 1924; Wilgress, 1924; Wells, 1925; Hansson, 192G; Le 

 Olerc, 1928a; Conn, 1929a; Manning, 1929, 1929a, 1929c. 1929d, 

 1930; Ingvaldscn, 1929, 1929a; Vilbrandt and Abcrnethy, 1930. 



Kling (1914) commented on the variability of composition of the 

 different brands of fish meal and recommended a uniform grade 

 containing a guaranteed analysis of 50 per cent protein, 5 per cent 

 fat, 5 per cent salt, and from 20 to 25 per cent calcium phosphate. 



The analysis of the fish meal used by Hansson (192G) was: 65 per 

 cent crude protein, 2 to 2.5 per cent fat, and 16 to 17 per cent inor- 

 ganic matter. Satisfactory results were obtained by feeding this 

 meal to dairy cows. 



The following table is quoted from page 443 of Wells (1925) : 



Iodine content of fish meal 



ADULTERATIOX OF FISH MEALS 



Methods are described by Lucks (1915) for detecting meat meal 

 adulteration of iish meal. It is not within the province of this 

 report to elaborate on this phase of the subject. Those who are 

 specially interested in adulteration of fish meals will find further 

 information in this reference. 



CONCLUSIONS 



An effort has been made to assemble in readable form in one publi- 

 cation the American and foreign publications of researches and 

 experiments conducted on the feeding of fish meals to various ani- 

 mals. For the convenience of the practical animal feeder this pub- 

 lication has been made as nontechnical as it was possible to do under 

 the circumstances. 



As scientific data and practical feeding tests have indicated, fish 

 meals and related marine products have a nutritive value of consid- 

 erable quality and diversity. As previously stated, marine products 

 offer a most fertile field for nutritional investigations to the great 

 benefit of man and his domestic animals. 



BIBLIOGRAPHY 



No claim is made that the bibliography of this report is a com- 

 plete resume of all published literature in this field of research. It 

 is believed, however, that it does include the more important refer- 

 ences on the subject to date. 



