5o6 



Cod Liver Oil for Calves. 



whole milk, and Lot II. (eight calves) to have separated milk, 

 with a small quantity of cod liver oil gradually substituted 

 for the whole milk, upon which, up to that date, they had 

 been reared. From May 1 2th no more whole milk was given 

 to Lot II., and their diet thereafter consisted of separated milk 

 and cod liver oil. On the same date the daily allowance of 

 milk per head was increased in the case of both lots to ten 

 pints. The allowance of cod liver oil to each of the eight 

 animals had now reached 2 ozs. per day ; and this quantity 

 was maintained. On June 9th the quantity of milk per calf 

 was increased to twelve pints per day ; this allowance was 

 continued until September 15th, after which date a 

 gradual reduction was made, and the calves were weaned on 

 September 22nd. As regards trough food, all the calves 

 on June 2nd got their first allowance of a mixture of about 

 1 lb. of linseed cake and bran, and as much meadow hay as 

 they cared to eat. The quantity of cake and bran was 

 gradually increased, until, on September 22nd, each calf 

 was getting about 4J lbs. per day. The animals were 

 not allowed out to graze. 



The average weight on April 28th of the four calves which 

 were to receive whole milk Lot I.) was 1 cwt. 5 J lbs.; that of 

 the other eight, 1 cwt. 5f lbs. On September 1 5th the whole- 

 milk calves weighed, on the average, 3 cwts. 15 lbs., and the 

 others, 2 cwts. 2 qrs. 4lbs. ; so that the calves getting whole 

 milk gained on the average 17 lbs. per head per day, and 

 those getting separated milk and cod liver oil made 

 1 '2 lbs. per head per day only. Thus the whole-milk calves, 

 as in 1899, did best, but in this instance there is a much 

 greater difference in favour of the former than in the earlier 

 trials, when the difference was only 0*2 lbs. per head per day. 

 The whole-milk calves also had a better " bloom." 



The cost of feeding with whole milk is, however, consider- 

 ably greater than that of the second method. If, as in 1899, 

 the whole milk be valued at 8d. per gallon, the daily cost of 

 each of the four calves is is. when the maximum allow- 

 ance of milk was given. Calculating the separated milk at 

 2d. per gallon, and the cod liver oil at 5s. 6d. per gallon, the 

 total cost for each calf in the second lot was about 4d. per day. 



