FOODS ANIMAL PRODUCTION. 



473 



Digestion experiments on each kind of hay were made with sheep. 

 Each sheep was fed 400 gin. of common hay and 500 gm. of salt 

 hay daily, and from the results the digestibility of the salt hay was 

 calculated. The results are summarized below : 



Digestibility of salt-marsh hays. 



English 

 hay for 

 compari- 

 son. 



Per cen t. 



Protein I 54 



Fiber 58 



Extract matter 56 



Fat 40 



II;. t 

 sage. 



Per cent. 

 52 

 60 

 55 

 36 



The results with branch grass are believed to be abnormal. 



From the composition and the digestibility calculations are made of 

 the amounts of digestible nutrients in 1 ton of the different hays as 

 compared with common hay. The relative values of the salt-marsh 

 hays containing 18 per cent of moisture as compared with English hay 

 containing 14 per cent of moisture are given as follows: English hay 

 100, black-grass hay 90, fox-grass hay 85, branch-grass hay 84, redtop 

 variety 84, cove mixture SS, salt mixture 82, and flat sage 88. 



Formulas are given for grain mixtures to be fed with salt-marsh hay. 



The digestibility of several sorts of distillery refuse, O. Kell- 

 NER, ET AL. (Landw. Vers. Stat., 50 (1898), JSTo. 3-4, pp. 297-316). — 

 Experiments were made with 2 sheep on the digestibility of 5 sorts of 

 distillery refuse. For purposes of comparison 3 tests were also made 

 in which the only food consisted of meadow hay. As shown by micro- 

 scopical analyses the different sorts of distillery refuse were made up 

 as follows: (1) Maize and rye with some potato and barley; (2) largely 

 oats and maize with a little barley; (3) maize, barley, and oats; (4) rye, 

 maize, and oats with a little barley; (5) barley and maize with rye and 

 potato. The composition of the different sorts of refuse is reported, as 

 well as a number of tests on the best methods of determining dry 

 matter and fat in distillery refuse and similar products. Two hundred 

 grams of distillery refuse No. 1 was fed with 800 gm. of meadow hay, 

 and in the other cases 300 gm. was fed with the same quantity of hay. 

 The coefficient of digestibility of the refuse alone was calculated from 

 the digestibility of the whole ration, using the value found for hay. 

 The average coefficients of digestibility for the 2 sheep are shown in 

 the table following. 



