ANIMAL PRODUCTION. 



71 



oxidation with free oxygen and tlie formation of carbon dioxid. Pure oxygen 

 does not liaA-e any greater influence upon the oxidizing process than does 

 ordinary air. The heating of hay is due. to oxidation at the beginning, and the 

 rate of oxidation rises with the temperature. 



Digestion coefficients with sheep, .7. H. Shepaud and A. E. Ivoch ( South 

 Dakota S^ta. Bui. Jl'i, />/>. 525-55'/). — This bulletin reports digestion experiments 

 with 6 grade Merino wethers. The results are given in the following table: 



Average coefficients of digctitiMlity obtained irith sheep. 



Kind of feed. 



Number 

 of trials. 



Lowland prairie hay (native grasses) 



Bromus inermis hay 



Sixty-Day oats 



Swedish Select oats (Brome grass roughage) . . 



Emmer or speltz (various roughages) 



Oat straw 



Alfalfa hay 



Hanna barley (various roughages) 



Manchuria barley ( Brome grass roughage) . . . 



Durum wheat (Brome grass roughage) 



Black Voronezh millet (various roughages) . . . 



Red Orenburg millet (oat straw rousjhage) 



Minnesota No. 13 corn (Brome grass roughage 



Upland prairie hay 



Cord grass hay (Spariina cynosuroides) 



Slough grass hay (native grasses) 



Kentucky blue grass hay 



Western wlieat grass hay 



Sorghum fodder 



Corn ensilage 



Corn stover 



Protein. 



Per ct. 

 42.5 

 48.3 

 85.5 

 77.2 

 79.6 

 13.7 

 77.9 

 76.6 

 83.9 

 78.1 

 70.1 

 54.8 

 77.6 

 32.0 

 39.1 

 41.6 

 66.6 

 51.5 

 53.4 

 56.7 

 52.5 



Ether Nitrogen- 



Per ct. 

 39.9 

 35.6 

 79.3 

 87.9 

 88.2 

 31.1 

 37.4 

 75.5 

 80.0 

 65.0 

 81.6 

 88.0 

 87.4 

 31.7 

 50.1 

 54.0 

 .53.2 

 39.4 

 76.7 

 66. 4 

 36.3 



Per ct. 

 56.5 

 64.4 

 85.7 

 82.3 

 88.2 

 51.7 

 71.8 

 91.4 

 90.9 

 92.0 

 88.1 

 88.2 

 96.0 

 50.7 

 49.0 

 54.6 

 62.2 

 60.9 

 64.1 

 78.4 

 63.7 



Crude 

 fiber. 



Per ct. 

 60.1 

 59.0 

 49.7 

 35.5 

 50.5 

 71.6 

 43.8 

 56.3 

 54.3 

 39.8 

 40.2 

 24.3 

 29.3 

 52.7 

 56.1 

 58.8 

 67.0 

 68.2 

 70.8 

 68.3 

 72. 1 



Protein metabolism with sheep on a ration of pure grasses, O. Hagemann 

 {Arch. Physiol. [Pfliigcr], J28 (1009), No. .'f-5, pp. .^JS-25()).— Digestion experi- 

 ments with growing wethers are reported with English rye grass (Lolium 

 pcrennc), bird's foot trefoil (Lotus coruiculatus). meadow fescue (Festuca 

 pratensis), and meadow foxtail {Alopecurus pratensis). The most striking 

 result obtained was with the meadow foxtail, as will be seen from the following 

 table : 



Coefficients of diyestiltiiitu of different haijs, olttained with sheep. 



Kind of luiv. 



Lolium perenne 



Lotus corniculatus . . . 

 Normal meadow hay 



Festuca pratensis 



Alopecurus pratensis . 

 Normal hay 



Number 



of 



days. 



Ether 

 extract. 



Per ct. 

 52 6 

 42.9 

 64.5 

 39.6 

 .38. 8 

 52.6 



Nitrogen- 

 free 

 extract. 



Per ct. 

 63.2 

 64.3 

 61.7 

 63.7 

 71.0 

 61.8 



Crude 

 fiber. 



Per ct. 

 52.3 

 48.5 

 49.6 

 58.2 

 71.0 

 49.9 



Per ct. 

 53.0 

 62.5 

 36.7 

 37.7 

 34.3 

 35.5 



On the digestibility of globulin (blood bread) by wethers, O. Hagemann 

 {Arch. Physiol. [I' ft tiger], 12S (1909), No. 10-12, pp. 587-,5^'y).— Defibrinated 

 blood from a slaughterhouse was mixed with different kinds of meal, baked, 

 and then fed to 2 wethers, 600 gm. of hay and 200 gm. of the bread being fed 

 daily to a sheei) weighing about 38 kg. The digestion coefficients of the blood 

 bread were computed as follows: Dry matter S3.4, nitrogen 66.1, ether extract 

 33.8, nitrogen-free extract 94, and ash 79.4 per cent. The coefficients for a 



