Show FOWLS LOSE HEALTH WHEN PUSHED HARD vitality of the birds must have consideration by it 8 Dears north carolina state collece poultry Veo arMent service tile the evolution of the fowl from a jungle bird laying 15 eggs a year to the modern hen laying up to eggs to in the same period Is a monument to poultry science the fowl has been transformed from a partially herbivorous bird to one which will utilize large quantities of animal protein in egg manufacture the birds bodies have probably chang changed edin to adapting themselves to the new diet unfortunately however the tendency of the industry has been to stress increased production without taking mahln sufficient consideration of fowl vitality the question of mortality Is now a major concern of the industry and much thought and investigation must be spent before the problem can be solved the problem Is complex as there are so many reasons tor for birds dying early A recent study of the causes of death in fowls showed deaths were caused by the following conditions in the percentages listed diseases of the digestive tract per cent intestinal parasites per cent respiratory diseases 9 per cent tur tumors nors 84 per cent germ borne diseases 7 per cent diseases of the glandular organs 69 per cent constitutional diseases 05 per cent genital diseases 65 per cent abdominal diseases 54 per cent protozoan diseases 54 per cent nervous diseases 4 per cent accidental deaths 36 per cent diseases of the circulatory system 13 per cent and cuts n e diseases 5 per cent this study brought out the fact that much of the work of reducing mortality will fall upon the individual to use better methods of flock ninna management gement and of controlling the spread of disease |