ministration of the drug did not afifect the production or the hatchability and 

 fertility of the laying flock, thus indicating that under controlled field con- 

 ditions no detrimental effect could be attributed to the feeding of ni- 

 trophenide. 



W. R. DUNLOP 



Conditions Under Which Hatching Eggs 

 Are Held Influence Quality of Chicks 



The importance of holding hatching eggs under ideal conditions prior 

 to incubation has been clearly demonstrated by recent trials at the Univer- 

 sity of New Hampshire Poultry Farms. Hatching eggs have been held from 

 two to fourteen days under ideal conditions in a refrigerated room ; under 

 average conditions in an egg holding room, and under poor conditions in a 

 hot, dry room. 



In respect to hatchability, the eggs held under refrigeration have av- 

 eraged 2.7 percent higher hatchability than those held in the egg holding 

 room and 10.9 percent higher than those held in the hot dry room. 



At hatching time the chicks were graded. The chicks from eggs held in 

 the egg holding room averaged 10.5 percent poor quality chicks as com- 

 pared to 15.3 percent for those held in the refrigerator and 18.3 percent for 

 those held in the hot dry room. 



W. C. Skoglund 



Abnormal (Bulging) Eye in New Hampshires 



This unusual bulging eyed condition usually occurs between the fourth 

 and eighth week of age, although in some chickens it occurs much later. The 

 abnormal individuals appear to grow nearly as well as normal chickens, but 

 the few affected females which have thus far been raised to maturity have 

 laid few eggs and produced no offspring. 



Because of the limited number of abnormal individuals produced to 

 date, little progress has been made in determining the mode of inheritance. 

 However, over sixty bulging eyed chickens were produced this season. 



The characteristic is also being studied histologically. 



W. M. Collins, P. A. Wilcox, F. L. Cherms, Jr. 



Influence of Light and Humidity upon 

 the Physical Condition of Broilers 



In order to determine the influence that light intensity in the pens has 

 upon the physical condition of broilers, experiments were carried out in 

 which chicks growing under conditions of natural sunlight, supplementary 

 artificial light, and darkened pens were compared. 



At six weeks of age there was a tendency for the feathering score to 

 improve as light intensity was decreased. However, at market age this ad- 

 vantage is not still apparent and market weight, feed consumption, and feed 

 efficiency are practically identical under all of the various light intensity 

 conditions. 



W. C. Skoglund 



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