FISH MEAL IN ANIMAL, FEEDING 385 



Tlie followino- is (juotod from a report by W. J. Erskine on page 

 122 of Alaska Fisheries and Fur Industries in 1915 by P)Ower 

 and Aller (1917). "The proper feeding of foxes is, of course, one 

 of the most important matters to be considered in this business. "We 

 have tried many experiments along these lines, and are convinced 

 that fish can safely be made the chief item of diet. * * * Canned 

 salmon is used to quite an extent by a number of the fox ranchers, in- 

 cluding ourselves." He further states that salmon heads are parti- 

 cularly relished by foxes, and that dried salmon backs make an 

 excellent food. 



EFFECT OF FISII-lSrEAL FEEDING ON MILK PRODUCTION 



Very little study has been made of the effect of fish-meal feeding 

 on either milk production or beef production. Certainly these sub- 

 jects need to be investigated. There is every reason to believe, in 

 the light of scientific data available, that fish meal should be a part 

 of the dairy cow's ration. The heavy drain on the mineral reserve 

 of the milk producer places the dairy cow in greater need of the 

 quantity and diversity of minerals contained in fish meals than is 

 the case of my other farm animal. 



Ellington and Knott (1928) found that herring meal and soy- 

 bean meal were about equal in value as to milk production and con- 

 tent of butterfat. " No disagreeable flavor could be noticed in the 

 milk." 



In feeding tests by the dairy division of the Bureau of Animal 

 Industry of the United States Department of Agriculture, as reported 

 by Weber (1916), dairy cows fed fish meal gave a greater yield of 

 milk than those fed cottonseed meal. The meal had no detrimental 

 effect on either the milk or the butter. 



EFFECT OF FISH-MEAL FEEDING ON BUTTERFAT CONTENT OF MII,K 



According to Hansson (1926), amounts as large as 1 to 1.5 kilo- 

 grams (2.2 to 3.3 pounds) of fish meal daily had no influence on the 

 flavor of the milk produced by dairy cows, and this feed appeared 

 to increase the butterfat content. The large percentage of mineral 

 present was considerably in its favor, in addition to its high protein 

 content. The analysis of the fish meal used was 65 per cent of crude 

 protein, 2 to 2.5 per cent of fat and 16 to 17 per cent of inorganic 

 matter. 



Isaachsen and Ulvesli (1926) reported the feeding of herring 

 meal to dairy cows with good results. Two kinds of herring meal 

 were fed, one low in salt content and the other relatively high. 

 Both meals gave satisfactory results, although the meal low in salt 

 was the better of the two. Codfish meal was also fed to dairy cows 

 with satisfactory results. However, the percentage of fat in the 

 milk was not affected by fish meal. 



EFFECT OF FISH-MEAL FEEDING ON EGG PRODUCTION 



Straight (1923) found that in poultry feeding, fish meal proved to 

 be a more economical feed for egg production than beef scrap. 

 "Wliile the beef scrap produced more eggs, the cost of production per 

 10420°— 30 3 



