386 U. S. BUREAU OF FISHERIES 



dozen of ofrgs was 14.4 cents, while on the fish meal ration the cost 

 was onl}- 14 cents. The egg production on the beef scrap ration was 

 1,777 and on the fish meal ration 1,G15. 



According to Blair (1923), two lots of 25 white leghorn pullets 

 were selected for comparing beef scrap with fish scrap, each con- 

 taining CO per cent of protein, as protein supplements for egg pro- 

 duction. The birds received equal amounts of scratch grain and 

 mash. The lot receiving fish meal laid 1,81G eggs as compared with 

 1,755 eggs laid by the lot receiving beef scrap. 



As reported by Kaupp (1925), fish meal and meat meal were found 

 to be practicalh' equal pound for pound on a protein basis as sources 

 of protein for egg production in Rhode Island reds in a test of 12 

 months' duration. Kaupp and Dearstyne (1926) said that fish meal 

 and meat meal were about equal for egg production; and, again, in 

 1927, Kaupp stated that the results were approximately equal, the 

 figures favoring the meat meal slightly. Kaupp had previously said 

 in 1924, in comparing these two products, that, in a repetition of 

 experiments from the previous year, fish meal was again found to 

 equal meat meal in poultry feeding. 



Clayton (1927) made a studj^ of various sources of proteins alone 

 and in combination as egg producers. Seven pens of white leghorns 

 were fed a standard commercial grain and mash to which was added 

 various protein feeds. A three years' average production per bird 

 was 114 eggs in a lot receiving beef scrap and cottonseed meal, 109 

 eggs when fed beef scrap, 99 eggs with shrimp meal, 79 eggs with 

 cottonseed meal and 2 per cent ground lime, 120 eggs with beef scrap 

 and 2 per cent of lime, 105 eggs with shrimp meal and 2 per cent 

 of lime, and 93 eggs when no additional protein was fed. 



In a study at the University of the Philippines (Fronda, 1929), 

 five lots of 20 pullets each were fed for one year on a basal ration 

 composed of 1 part of a grain mixture of corn and palay and 1 part 

 of a nuisli mixture of rice bran, corn meal, and copra meal. Two of 

 these lots had their basal ration supplemented with 5 and 10 per 

 cent, respectively, of dried shrimp ancl two others with 5 and 10 per 

 cent of fish meal. 



The feed consumption was practically the same in all lots. When 

 fed at the rate of 5 per cent both dried shrimp and fish meal were 

 quite satisfactory and caused a profitable increase in egg production 

 as compared with the check lot. Adding 10 per cent of these supple- 

 ments further stimulated egg production, but not in proportion 

 to the increased cost of the ration. The yearling hens which had 

 received one or the other of these supplements during their pullet 

 year were Avell grown and vigorous. The addition of the protein 

 supplement to the basal ration lowered the mortality rate. 



According to the periodical, "Farming in South Africa" (1929), 

 the highest egg production was obtained by feeding 20 per cent of 

 fish meal. 



Shellfish meals have recently received considerable attention in 

 poulti-y feeding, particularly for increasing egg production, both 

 in this country and abroad. Consul Dunlap (1918) reported the 

 following : 



Difficulties in procuring sufficient quantities of nourishing food for barn- 

 yard fowl in Denmark have led to a number of experiments with poultry 

 feed, one of which seems to have brought on the market a product that may 



