1912.] Summary of Agricultural Experiments. 949 



on whey and a mixture of barley meal and maize meal during the 

 second twenty-eight days, and on whey and maize meal during the 

 remainder of the experiment. In another lot this order was reversed. 



It was found that whey was profitably utilised when fed alone 

 to pigs, though the return was not nearly so great as when it was 

 partly replaced by some of the meals. Taking an average of the 

 whole experiments, it was found that pigs fed on whey alone increased 

 in live weight at the rate of i lb. per day, and gave a return of \d, 

 per gallon for the whey and a further sum of 8s. yd. per pig towards 

 other expenses. 



On the whole, when meal was fed in addition to the whey there 

 was a greater and more rapid increase in live weight. Of the meals 

 given with whey, maize meal produced over the whole experiments 

 the greatest average increase, and pigs fed on it gave the best returns 

 for the meal and whey consumed. It likewise gave a better return 

 than the changing of meals during the feeding period. The proportion 

 of maize meal to whey which gave the best return was 2 lb. meal to 

 2\ gallons whey on an average, with a smaller quantity of meal earlier, 

 and a larger quantity later, in the feeding period. Whey and Paisley 

 meal proved more profitable than whey and barley meal; in fact, the 

 latter food failed to show a better return than whey alone. 



The results obtained from a comparison of separated milk 

 and barley meal with whey and barley meal showed that the relative 

 values of separated milk and whey for bacon production were as 

 3 to 2 - 



The single test on the question showed that to produce the same 

 increase \2.\ per cent, less dry matter was required with warm food 

 than with cold. 



The amount of dry matter in the food required to produce 1 lb. 

 increase in live weight varied with the kind of food, the live weight of 

 the pig, and other conditions. In general, most was required when 

 whey was fed alone, and least when maize meal and whey were fed in 

 the proportion of 2 lb. to 2\ gallons. The bacon-producing values of 

 separated milk, whey, and meals respectively were found to be increased 

 when the liquid and solid foods were combined. 



The quantity of food required to produce an increase of 1 lb. live 

 weight grew in proportion to the weight of the pig. At 214 lb. it 

 required 50 per cent, more food for the same increase than at 118 lb., 

 and 19 per cent, more than the average amount required by animals 

 of 118 to 214 lb. live weight. The live weight of the pigs increased 

 from 100 to 210 lb. in nine or ten weeks (an average rate of 1*72 lb. 

 per head per day) when fed on separated milk and barley meal. When 

 the ration was maize meal and whey it required eleven weeks to 

 produce the same increase (an average rate of 1*49 lb. per day). 



Pigs fed on whey and maize meal gave the highest percentage of 

 carcass weight to Hveweight, and of bacon to carcass weight. 



Barley meal without skim milk or whey produced a bacon inferior 

 in quality to that from meals given with milk or whey. Barley meal and 

 separated milk gave in every case the best quality of bacon. When 

 whey was used in such quantity as to provide a considerable proportion 

 of the dry matter of the food a good quality of bacon was obtained 

 with all the meals. 



