620 



Journal of Agriculture, Victoria. [10 Oct., 1917. 



The results of these experiments show, as also do those previously 

 considered, that not only is there a great gain over Virhole milk feeding, 

 even when valuing whole milk as low as 6d. per gallon, by substituting 

 separated milk and fat substitutes, but that the live weight increase 

 after weaning is almost as good in the case of calves reared on 

 separated milk and milk-fat substitutes as with those fed on whole 

 milk. True, the whole milk gives the greatest increase in live weight 

 during rearing, and no substitute comes up to it in this respect if the 

 cost is not taken into account, but the increase is obtained at so great 

 a price as to make it entirely incommensurate with the value of the 

 increase. Calves, after they have reached a month to six weeks of age, 

 can be quite economically and profitably reared without any whole 

 milk at all. A calf up to a month old will require only from 20 to 25 

 gallons whole milk. 



It should be mentioned that the calves were given linseed cake 

 in small quantities, this amounted to | lb. per head daily at time of 

 weaning. They also had hay and grass ad lib. 



The milk was run through the separator immediately after milking, 

 and the separated milk fed to the calves soon after. 



The oil was measured out for each calf in fluid ounces, and 

 poured into the apportioned quantity of separated milk in the bucket 

 and well stirred. 



In other experiments it is recommended that the oil be first put 

 into the bucket, the proper quantity of separated milk poured upon it, 

 and then well stirred ; this insures thorough mixing. 



The oils were gradually introduced, commencing with one fluid 

 ounce. The weighed quantity of meal for the whole lot of calves was 

 made into gruel with hot water, and a measured proportion of this 

 gruel given to each calf when it was cool, along with the se.parated 

 milk. 



The daily quantities of the experimental foods per calf were those 

 fed under average conditions, and as they form a useful guide in general 

 practice they are here reproduced. 



Experimental Food per Calf. 



Lot I. Whole Milk. 

 lat four weeks of experiment 

 2nd, 3rd, and 4th weeks of experiment 

 5th four weeks of experiment 



Lot II. Cod Liver Oil. 



1st week of experiment . . f 



2nd „ „ .. J 



3rd and 4th weeks of experiment 

 2nd four ,, ., ,, 



3rd „ 

 4th „ 

 5th „ 



Whole Milk, 

 f gall. 



Sep. Milk. 

 J gall. 



A " 



1 .. 



1 ., 



1 ,. 



1 „ 



1 ,. 



1 gall, whole milk daily. 

 IJ gaUs „ ., „ 



1 gaU. „ „ „ 



Cod Liver Oil. 



1 fluid oz. 



2 „ 

 2J „ 



3 ., 

 3 ,. 



Meal. 

 oz. daily. 



except that cotton 



Lot III. Cotton Seed Oil. — Same as Lot II. 

 seed oil was used in place of cod liver oil. 



It is not to be assumed that the fat substitutes mentioned in the 

 three lots of experiments just recorded are necessarily the best it is 

 possible to obtain. 



