328 MASS. EXPERIMENT STATION BULLETIN 181. 



availability coefficient of 44.66. Any nitrogenous matter testing below 

 50 by this method is considered of poor quality. The extract matter was 

 quite well utilized, and likewise the small amount of fat. The fiber for 

 some reason appeared to be completely digested, which is not probable. 

 The non-nitrogenous matter of the tankage was quite well utilized, 

 but the protein is likelj'' to prove inferior to the better grades of animal or 

 vegetable nitrogenous concentrates. 



Summary of Coefficients of New Bedford Pig Meal. 



This material according to the manufacturers was composed of 73 per 

 cent, garbage tankage, 18 per cent, standard middlings, 7 per cent, pre- 

 pared, molasses feed and 2 per cent, linseed meal. It tested 8.80 per cent, 

 water, and the dry material consisted of 19.65 per cent, ash, 23.59 per 

 cent, protein, 9.15 per cent, fiber, 44.30 per cent, extract matter and 3.31 

 per cent. fat. 



The sheep digested the entire mixture fairly well. Evidently the 

 addition of the vegetable concentrates improved the digestibility of the 

 total protein in the mixture. The fiber was poorly digested, but the 

 extract matter and particularly the fat showed high coefficients. 



It is quite reasonable to assume that garbage tankage is likely to vary 

 considerably in quality. 



Summary of Coefficients of Rowen. 



Rowen represents the second gro\vth of meadows, and contains in 

 addition to the grasses a considerable admixture of clover. The samples 

 tested contained 9.13 per cent, of water, and in dry matter showed 7.19 



