19171 ANIMAL PEODUCTION. 69 



lot 4, barley chop and oat chop, 1 : 1. These pigs made average daily gains 

 per head of 1.37, 1.48, 1.32, and 1.24 lbs., at a cost per pound of gain of 4.79, 

 4.61, 4.87, and 5.63 cts., for the respective lots. It appears that barley chop is 

 a good feed for fattening hogs, as all the hogs in the experiment made good gains. 

 Oat chop and barley chop gave the poorest gains and the costliest gains. Oat 

 chop is not deemed as good a feed for fattening hogs as the other combinations 

 under test and at present prices costs too much. The addition of feed flour to the 

 barley chop, even though it made a more expensive feed, increased the gains 

 in weight and made the cost of production lower. Shorts did not give as 

 good results as feed flour for mixing with barley ; in fact, the barley alone in 

 this test did slightly better than barley and shorts. 



Three lots of weanling pigs were fed as follows : Lot 1, barley and skim milk ; 

 lot 2, shorts and water ; lot 3, shorts and skim milk. These pigs made average 

 daily gains of 0.52, 0.67, and 1 lb., at a cost per pound of gain of 5.92, 4.76, and 

 3.12 cts., for the respective lots. 



Two lots of pigs were fed as follows : Lot 1, frosted wheat and water ; and 

 lot 2, oats, barley, and skim milk. These pigs made average daily gains of 1.37 

 and 1 lb., at a cost per pound of gain of 3.26 and 6.51 cts., respectively. In a 

 second test, a lot of 5 hogs fed well-ground frozen wheat and water made an 

 average daily gain per head of 1.83 lbs., and a similar group fed well-ground 

 oats and barley 1.62 lbs. The respective costs per i)ound of gain were 4.12 

 and 4.82 cts. 



It is estimated that the cost of feed per pig raised from the time of farrow- 

 ing to weaning is .$2.32 ; the co.st of raising young sows from weaning to six 

 months of age, $7.12 ; and the cost of rai-sing young sows from six months to 

 one year of age, $9.49. 



Continuing previous work (E. S. R., 33, p. 761), experiments in feeding phos- 

 phorus in various forms to pigs show a distinct benefit in feeding inorganic 

 phosphorus with rice meal. In all, 129 pigs were put through the trials. 

 Forty-nine of these were fed rice meal in various proportions with other grains 

 and all developed the typical diseased condition previously noticed in rice-meal- 

 fed pigs. Phosphorus in different forms was given as a complementary food to 

 the above ration with 48 hogs. With one exception these hogs remained per- 

 fectly healthy throughout the trials and showed no ill effects from the rice 

 meal. Calcium phosphate in smaller quantities fed to 4 pigs failed to counter- 

 act completely the injurious effects of a ration of rice meal. Liberal quantities 

 of muriate of potash were absolutely ineffective in the case of pigs fed on a 

 ration containing rice meal. Twenty-four control pigs fed on rations not con- 

 taining rice meal remained normal and healthy throughout. 



It is concluded that the injurious effects of rice meal in proportions as low 

 as one-third of the total grain ration have received further confirmation. 

 " Inorganic phosphorus added to the ration containing rice meal is capable of 

 counteracting these injurious effects. From the work done, ground phosphate 

 rock appeared to give better results than the other forms used. More work is 

 necessary in this connection." 



Horses, E. S. Aechibald et al. (Canada Expt. Farms Rpts. 1915, pp. ^1^-1^95, 

 pis. 6). — Data are given on the cost of wintering idle horses. It was found 

 during four years' observations that horses weighing around 1,250 lbs. can be 

 fed, idle, for a little less than 10 cts. per day upon a pound each of rough hay, 

 oat straw, and carrots or swedes to 100 lbs. live weight. The average total cost 

 of feed for the period of 151 days was $14.33 per head. 



Experiments in wintering colts outside under single-boarded sheds when the 

 temperature went down to as low as 31° F. below zero indicate that this prac- 



