810 



EXPERIMENT STATION RECORD. 



Oroline yellow, known in tlie trade as "fast yellow" or "acid yellow," 

 was found to seriously retard the artilicial digestion of blood libriu in 

 pepsin solution. Saffoline, or "acridine red," and magenta were found 

 to have no effect upon tlie digestion with pepsin, but had a marked 

 effect in retarding the digestion of fibrin with pancreatin, while oro- 

 line yellow had none. Methyl orange behaved like saffoline and 

 magenta. — f. av. :moese. 



A contribution to the study of Southern feeding stuffs, J. B. 

 McBryde [Tennessee Sta. Bui., Vol. IX, J\o. 3, pp. 51-164).— The first 

 part of this bulletin contains reports of analyses made at the Tennes- 

 see Station of a large number of Southern feeding stutfs. The author 

 gives a descriptiou of the samples, and in most cases the minimum, 

 maximum, and average composition of the following : Cotton-seed meal, 

 decorticated cottonseed meal, cotton-seed cake, cotton-seed hulls, cot- 

 ton-seed hull bran, peanut cake, wheat bran, wheat middlings, wheat 

 shorts, unbolted corn meal, prepared oat feed, feed meal, corn chop, 

 corn husks, corn silage, cowpeas, corn meal, and hay from Hungarian 

 grass {Sefaria (/ennanica), herd's grass [Agrostis rnhjaris), Bermuda 

 grass [Cynodon dactylon), wild rye {Ehjmus canadensis), Elymus striafus, 

 English rye grass {Lolium perenne), Mulilenhergia mexicana, Panicum 

 dandestinum, switch grass [Fanicum rir [latum), English blue grass 

 {Poa compressa), gama grass {Tripsacxim dactyloidcs), wild millet, clover 

 rowen, serradella {Ornithojms sativus), and heron's bill (Erodium cicu- 

 tariuni). 



The composition of some of these feeding stuffs is given in the follow- 

 ing table: 



Composition of Southern feeding stuffs. 



Cotton-seed hull bran 



Hay from — 



Wild rye 



English rye grass 



Muhlenbergia mexicana 



Panicum dandestinum, 



Switch grass 



Englisli blue grass, cut .Inly 1, 1891 



Englishbiuegrass, cut JunelS, 1895 



Gama grass 



Wild millet 



Heron's bill 



Water. 



Per cent. 

 7.96 



10.82 

 11.15 

 lU. 65 

 10.90 

 10. 83 

 0.27 

 9.37 

 9.47 

 8.51 

 12. 94 



Water-free substance. 



Protein. 



Per cent. 

 3.99 



4.42 

 13. 58 



8.96 

 11.79 



7.64 

 12. 43 



8.62 

 14.09 

 13.25 

 13.63 



Pat. 



Nitrogen- 

 I free 

 extract. 



■ cent. 

 1.80 



.90 

 8.00 

 2.59 

 1.49 

 2. 15 

 3.54 

 3.27 

 5.81 

 5.38 

 5.99 



Per cent. 

 54.12 



54.09 

 44.00 

 47.44 

 48.74 

 50.59 

 47. 24 

 55.17 

 41.76 

 45.58 

 46.55 



Fiber. 



Per cent. 

 37. 34 



30. 64 

 26. 57 

 33. 14 

 31.76 

 33. 93 

 23.45 

 26.47 

 27.85 

 26.61 

 23.37 



Ash. 



3.89 

 7.79 

 7.87 

 6. 22 

 5.09 



13.34 

 6.47 



10.49 

 9. 18 



10.46 



The second part of the bulletin consists of a compilation of analyses 

 of many Southern- grown feeding stuffs, and the composition of these is 

 compared with the averages for the whole country. The coi^fiflcients 

 of digestibility of a number of American feeding stuffs, as obtained in 

 experiments with ruminants and swine, are quoted, together with feed- 

 ing standards. 



