310 
Milk. 
Composition of Milk of Pedir/ree Short-honis {on grass alone) 
on Sept. 18. 1860. — The morning's milk of the pedigree cows 
contained 8 7 "6 per cent, of water, and 12'4 per cent, of drv 
matter, and thus was less concentrated than the morning's milk 
from common cross-bred short-horns. 
The evening's milk contained 86*8 per cent, of water, and 
13 2 per cent, of solid matter, and therefore was about as con- 
centrated as the evening's milk of the common cows. 
The following numbers show the detailed composition of 
this milk in the morning and evening:, and the average cora- 
position of both : — 
Morning. Kvening. Average. 
AVater 87-60 86-80 87-20 
Butter (pure fat) .. .. 3-56 4-16 3-86 
*Casein 3-19 3-37 3-28 
Milk-sugar 4-92 4-86 4-89 
Mineral matters (ash) . . -73 -81 "77 
100-00 100-00 100-00 
•Containing nitrogen .. -SI '54 -52 
Whether we regard quantity or quality, the 3 cross-breds in 
these experiments gave rather more favourable results. 
After some time all the cows, in addition to grass, received 
1 lb. of good linseed -cake per head per day, and then yielded : — 
3 common cows . . 28^ pints of milk in the morning and 18 in tiie 
evening, or to:;ether iQ^ pints. 
3 pedigree cows .. 26 J pints of milk in the morning and 22 in tlie 
evening, or together 48J pints. 
Composition of Mixed Morning and Evening's Milk on Sept. 24, 1860, 
Cows on Pasture and lib. of Linseed-cake each daily. 
Common Podigrce 
Dairy Cows. Cows. 
Water 87-10 86-50 
Butter 4-28 4-28 
•Casein 3-06 3-25 
Milk-sugar 4-84 5-30 
Mineral matters (ash) -72 -67 
100-00 100-00 
*Containing nitrogen •A'3 -5-2 
Percentage of solid matter . . .. 12-90 13-50 
The addition of oil-cake appears to have slightly increased the 
amount of butter in the milk, but not the yield of milk itself. 
After the cows were kept for a week upon 1 lb. of oilcake anil 
grass ad libitum, 2 lbs. of cake were allowed to each anin^al. ■ 
Tlie average yield of milk then was as follows : — 
3 common cows produced 30 pints in the morning and 19 in the evening, 
or together 49 pints. 
3 pedigree cows i)roduced 26.^ pints in the morning and 21 in the evening, 
or together 47^ pints. 
