Show I I I 1 i I I i I I I j I I R Respiratory r Y Dis Diseases ases Cut CutY Cut or orInto i Into E Egg Production Production Lowered egg production loss of weight and death losses Josses are some of the results of respiratory diseases among adult farm fowl These diseases diseases dis- dis disi I i eases have a tendency to become l 1 chronic and their seriousness is increased increased in- in inI I J creased by the fact fad that they frequently frequently frequently fre fre- strike after the expense of rearing the flock has been incurred Respiratory diseases can be divided divided divided divid divid- ed into two types those which primarily I manly marily affect the respiratory system and those which are not essentially respiratory diseases but which may produce respiratory symptoms I Baby chicks are subject to infectious infectious I bronchitis and gape worms directly affecting the I respiratory system disI disease dis- dis ease case however is a conI condition con- con conI I of chicks and may affect any organ in the body including the lungs In adult chickens the most important im- im port portent ant respiratory diseases are infectious and noninfectious Less comI cornmon com com- mon are fungus infections and infestation inI in- in I j with air sac mites while other diseases which may produce I respiratory symptoms are fowl pox fowl paralysis and vitamin A deficiency deI de de- Turkeys are subject to a I form of sinusitis or not transI transmissible transmissible trans trans- to chickens I Preventive vaccination can control fowl pox and but butI the controls for the other diseases I on which vaccines have proved unsatisfactory unsatisfactory unsatisfactory un un- satisfactory are sanitation adequate feeding and housing facilities |