246 QUEENSLAND AGRICULTURAL JOURNAL, [1 Ava., 1901. 
This variety was analysed by itself in order to compare it with the mixed 
pasture of Sample II.; the analyses show, as was only to be expected, very 
little difference. Ng 
Before giving the tabulated statement of the analyses, I must add, in 
explanation, that the grasses cut in the green state were weighed, then air-dried, 
the resulting hay again weighed, prepared for analysis, and analysed. The 
composition of the green grass was calculated from the analysis of the hay. 
I.—Paspalum IIl—Ordinary III.—Cynodon IV.—Andropogon 
dilatatum. Pasture. dactylon. intermedius. 
— | ; 
Hay. Grass. Hay. Grass. Hay. Grass. Hay. Grass. 
Tonsperacre ... ...  ...| 27858 | 10°525 | 1°451 | 3429 i 
Lb. per acre se arp ...| 6,402 | 23,576 3,250 7,681 
Per Bent. of cag : 
Moisture... ote 2H ve 10°72 | 72°84 9°61 57°67 9°98 | 65°50 9°36 | 63°60_ 
Total dry substance ... | 89°28 | 27-16 | 90:39 | 42:33 | 9002 | 34:50 | 90°64 | 3640 
Soluble albuminoids —... *¥ “96 29 “96 “45, 2°59 sh) 1:05 “42 
Insoluble albuminoids ... a) Bush) halé 3°50 1°64 7:13 2:73 3°59 1:44 
Digestible fibre... AP Me 26:97 8:20 | 29°5 13:83 | 33:76 | 12°94 | 32:01 12°86 
Woody fibre hs LB .. | 34°45 | 1048 | 36°94 17°30 | 22°17 8°50 | 35°84 | 14°39 
Soluble ash .. ie 1B «| 6:06 1°84 3:09 1°45 4°78 1°83 2°79 nha. 
Insoluble ash i oe 5) 9 4,08, 1:24 2°57 1°20 5:27 2°02 2°62 1°05 
Crude ash ... ye ... | 10:47 Ass 5:99 sr 10°34 ee 5°69 RY 
Pureash ... ah ac) 3:08 5°66 266 | 10:05 BSS S4L 2-27 
Fat 24-0 a. | ah) eh fn e031E | CRN 85S] a0 aie | aa | oe 
Chlorophyl, amides, &c., by dif- | 10°88 3°32 | 12°26 5°74 | 13°17 5°05 | 11°34 4:56 
ference | |__| ————- | : — 
Total ee yh ... |100°60 ...  |100°00 ...  |100°00 ...  |100°00 =a 
Amide nitrogen ... oe ai 112 “034 “196 092 616 | *236 “167 067 
Total nitrogen... By: 3, 882 268 ‘910 “426 | 2°171 "882 “910 | “365 
Feeding Ratio... 0. un 1:{ 143, 4:| 148 1:} 57] 1s | 1b 
Pure Ash] 422YSi8 Ipure Asn] AP2!YSi8 pure Ash| AP#/YSIS [pure asn| Analysis 
ea in Hay. cs sear in Hay. of anes in Hay. as fe in Hay. eae 
pe ded et b. i | 
Carbonic acid ... .. CO. ey 29 ax ‘15: sir) 26 as “14 
Unburnt carbon STC. oe 2°89 ny 538 a 2°55 ~ 4°76 
Silicie acid ae <r. teflOh- 5°34 51°42 3°32 54°62 5°91 57°24 3°17 55°25 
Sulphuric acid ... az NO), BR} 2°19 Ab} aii "25, 2°38 14 2°48 
hlorine ... ogy et oof) 1°82 17°50 © “94 15°54 us) 12°58 “84 14°63 
Phosphoric acid sx EEO}, °35 3°39 *32 5°25 “37 3°58 "28 4°87 
Ferric oxyde... a: Ui {0}. “40 3°84 ‘11 1°76 “21 2:08 06 1:12 
Lime ey sie ..- CaO 25 2°40 24 3°96 *42, 4°08 15 2°54 
Magnesia as ee GO) 20 1°95 27 4°46 33 3°22 "28 4°86 
Potash ... a, Poke 1°18 10°87 38 6°21 1°40 13°51 “4D, 784 
Soda ire yes sr INES{O) ‘76 7°34 30 5°02 15 1°50 “32 5°52 
: 104:08 4 &, 104°31 pe 93 |102°93 | fe. 10401 
Less oxygen equival. to Cl... ie 3°95 4y 3200 Bae ee 2°83 3°30 
Totaly eee eee Teen 10015 .. [10081 | ... [100710 100-71 
From the analyses and the ratio of digestible nitrogenous and digestible 
non-nitrogenous matters, we learn that couch grass is eminently suitable for 
the feeding of cows. Cows, when milked, require a more nitrogenous food, in ~ 
order to keep them in full milk for as long a period as possible. Professor 
E. Wolff, in his work on the feeding of animals, gives 1°54 as a normal ratio 
for milking cows, and, as this ratio is almost identical with the ratio found for — 
couch grass, the popular opinion of the excellence of this grass as a diet for 
milch cows is fully borne out. 
