52 COD-LIVER OIL FOR CALVES. 

milk as before. On July 15th the quantity of cod-liver oil 
was increased to two ounces, the maximum quantity given. 
On this date they were all given a little linseed cake and 
bran, about six pounds of each among the fifteen, which was 
gradually increased until May last, when they were getting 
45 pounds of linseed cake and 28 pounds of bran, together 
with meadow hay. 
The milk given to Lot I., at 8d. per gallon, cost 1s. per head 
per day ; in the case of [Lot IL the cod-l:ver oil at 5sepen 
gallon, weighing about 150 ounces, and the separated 
milk at 2d. per gallon, cost under 4d. per head per day ; while 
for Lot III. the meal at 1d. per day and the separated milk as 
before, cost slightly more than 4d. per head per day. All 
the calves had access to fresh hay. The cod liver oil was 
simply stirred up with the milk. The calf meal was given 
in the form of gruel mixed with the separated milk. 
The calves were weighed on eleven occasions, beginning 
with June 17th, 1899, and ending with May 2nd last; the 
weight of the five calves in each lot at the beginning and end 
of the period of twelve weeks during which the foods were 
tested, viz., June 17th and September oth, was @sumeeq 
The weight of the calves in May last is also shown. 
oul IP otale Lot Tk: 
Whole Milk Cod Liver Oil Calf Meal 
(Weight of (Weight of (Weight of 
5 calves). 5 calves). 5 calves). 
cwt. qrs. Ibs. cwt. qrs. lbs. cwt. qrs. Ibs. 
June 17th, 1899 - - - Fee 2ealon eae i 5 2eae 
September 9th, 1899 - (2 iG Wit 1 3 10° 32505 
May 2nd, 1900 - = = 0) @ 2 2O0mnNG 28 29.0 19 
The average daily increase in weight per head per day 
during the twelve weeks from June 17th to September oth, 
2.€., the period during which the foods were tested, was as 
follows :— ; 
Calves on Whole Milk- - - - 1‘8 lb per head per day. 
35 Cod Liver oil - - - Do 3 ae 
59 Meals - - - - - Ti 4 3 
From a comparison of the figures it is evident, Professor 
Campbell remarks, that although the new milk calves did 
best, as was bound to be the case, the expense, which was 
about three times as great as for the group which received 
cod-liver oil, was out of all proportion to the increase. The 
