52 ('all'-)-ear'nig Experiment. 



Lot 1. Cod-liver oil and separated milk. 



,. 2. A purchased "calf meal." 



,, 3. Gruel (linseed and oatmeal) with separated milk. 



,, 4. Whole milk. 



,, 5. Crushed oats (given dry) and separated milk. 



The cod-liver oil for Lot 1 was stirred up well with the 

 separated milk, the idea being that the fat removed in the case 

 of whole milk, by separating it, could be thus restored. The 

 " calf meal " wag used for Lot 2 strictly in accordance with the 

 directions issued with its sale ; the " gruel " of Lot 3 consisted 

 of 1 lb. linseed and 6 lbs. fine oatmeal, which was first made 

 up with 1 gallon of water and then the separated milk added ; 

 with Lot 5 the oats were home-grown and merely bruised in 

 the farm mill, but not ground fine. They were given dry, and 

 the separated milk by itself, the two not being mixed or made 

 up into a gruel. 



For the first three weeks after coming on to the farm all 

 the calves had alike whole milk and nothing else ; on the 

 average they took a gallon per head daily. They were then 

 weighed, and were divided up, as evenly as possible, into five 

 lots according to their weights, general character, &c., and the 

 experiment proper began. 



The costs of the several foods were : whole milk Id. per 

 gallon, separated milk 2d. per gallon, cod-liver oil 5s. 6d. per 

 gallon, " calf meal " 15s. per cwt., oatmeal lis. per cwt., linseed 

 24s. per cwt., crushed oats (home-grown) 7s. per cwt. 



The several foods were given to the respective lots for nine 

 weeks, this being, accordingly, the duration of the first part of 

 the experiment. The calves were then weighed, their age 

 being twelve weeks. The following are the details as regards 

 the method of feeding and the quantities of food given : — 



Lot 1. — Cod-liver Oil. 



Lot 1 (four calves), during the first three weeks (March 26 to 

 April 15) consumed 86 gallons of whole milk, costing 4s. 2'16d. 

 per calf per week. They were weighed April 16, and started 

 on their special diet. Whole milk was gradually replaced by 

 separated milk, the four calves taking for the first six days 

 4| gall, whole milk and 1^ gall, separated milk daily, with 

 eight table-spoonfuls daily of cod-liver oil stirred up with the 

 milk. After a fortnight the whole milk went down to 2^ gall, 

 and the separated milk up to 3 gall, daily, and after three weeks 

 the four calves were receiving all separated milk (6 gall, daily 

 per lot) and so continued till the close of the nine weeks, the 

 cod-liver oil being increased after four weeks to twelve table- 

 spoonfuls daily. The total food consumed during this period 

 of nine weeks by the four calves was : cod-liver oil 2 gall., whole 



