220 Farm Poultry 



"C. To imperfect sanitation, lack of ventilation, 

 sunlight, etc.; e. g., tuberculosis flourishes 

 in dark, poorly ventilated brooders. Fif- 

 teen and one -tenth per cent of the post- 

 mortems showed more or less evidence of 

 tuberculosis. 



"D. To improperly balanced ration, i. e., im- 

 proper feeding. For the continued main- 

 tenance of health there must be a definite 

 proportion between the amount of carbo- 

 hydrates (starch, sugar, etc.), fats and the 

 nitrogen -containing proteins. A ration 

 wholly vegetable is almost certain to con- 

 tain a too low percentage of nitrogen, 

 while a ration exclusively animal is very 

 sure to be deficient in carbohydrates. As 

 a result of improper food, digestive dis- 

 orders soon appear, either in the liver and 

 gall bladder, or in the intestines. Of the 

 chicks examined, 75.7 per cent had abnor- 

 mal livers; 38.6 per cent had various forms 

 of intestinal disorders." 



"In conclusion, special attention is called to the 

 following facts, confirmed by experiments:* 



"1. Careful external and internal examination 

 (such as any one can readily make) of the dead 

 chick will usually disclose the cause of death. The 

 necessary remedies are usually not difficult, to find. 



*Bulletin No. 61, Rhode Island Agricultural Experiment Station, p. 59. 



