72 



EXPEKIMENT STATTON" EEOOED. 



[Vol. 36 



much superior to the Barred Rocks as winter layers, although about February 

 15 the Rock pullets began to lay better. 



Temperature records were kept of colony houses at Indian Head, Sask., con- 

 structed as follows: Number 1, building paper and one ply lumber (two ply 

 around the roost space), one sash glass, two cotton frames, board floor, and 

 shingle roof; number 2, two ply lumber, tar paper between, all-cotton front, 

 earth floor, shingle roof; number 3, two ply lumber, tar paper between, cotton 

 front and also glass 14 in. wide full length of front, earth floor, shingle roof; 

 and number 4, two-ply lumber, tar paper between, roost space sealed inside 

 with beaver board, board floor, ruberoid roofing, all-cotton front. The winter 

 was extremely mild, and no striking differences between the houses or the egg 

 production was noted. 



Records were kept of the temperatures in a large frame house at Lacombe, 

 Alta., which accommodated about 100 birds, and in a straw house which has a 

 floor space for about 80 birds. During the latter half of January, through 

 February and the latter half of March, while the temperature was higher in the 

 frame house, the birds in the straw house did not suffer. 



The percentages of hatchability of eggs produced in the long, square log, and 

 straw types of houses were 38.6, 5G.9, 52.7, and 31, respectively. 



Comparing the cost of 1,200- and 140-egg capacity incubators it was found 

 that the former could be operated at a cost of 35 cts. and the latter at $2.09, 

 per 100 chicks hatched, the percentage hatched being 46.1 and 41.4, respectively. 



The following table shows a comparison between the performances of early- 

 hatched and late-hatched pullets: 



Early v. late hatched pullets. 



From an egg-producing point of view, with Wliite Leghorns, it would appear 

 that it is better to hatch them early and let tliem get their full growth on the 

 range before putting them into laying pens. In the case of the Barred Rocks 

 also the early-hatched pullets gave the more profitable returns, but there was 

 not so much difference with this breed as with the Leghorns. 



Early-hatched White Leghorns were compared as to performance with their 

 mothers, two years old. The results indicate that pullets only should be 

 relied on for winter egg production. The strong, healthy pullets in this instance 

 gave better fertility and hatchability than did their mothers. 



Comparing selected and unselected pullets, the results indicate that it pays 

 to cull a flock and to keep only those of known egg-laying strain. Comparing 

 5 V. 32 females to 1 cockerel, the former method resulted in a higher fertility 

 and hatchability of eggs. 



Comi^arative costs of operating four incubators are given. The average cost 

 for all machines was 2.88 cts. per chick. The total cost of raising chicks to 

 five weeks of age under a stove heater was estimated to be 14.2 cts. per chick. 



In trials to determine the effects of certain well-known feeds when fed 

 exclusively, pen 1 was fed wheat flour, best grade, baked in cakes. After 31 



