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  • ThesisItemOpen Access
    INTERTRANSMISSIBILITY OF THE COMMON NEMATODE PARASITES OF PIGEON (columbalivia domestica) AND DOMESTIC FOWL (gallus gallus domesticus)
    (COLLEGE OF VETERINARY AND ANIMAL SCIENCES Mannuthy - Thrissur, 1996) SENTHILVEL, K.; Madhavan Pillai, K.; SENTHILVEL, K.
    An investigation was tnade on the prevalence of neinatode infections in pigeons for a period of one year by faecal and postmortem examinationsand the percentage prevalence was 35.24 and 46.74 respectively. The species of nematodes collected from pigeons were Ascaridia columbae, C3.pill3-ria. obsignsta., Ornithostrongylus guadriradiatus, Acuaria spiralis and gt-j^oTigyloid-GS aviuiu. Capillaria obsignata had the highest prevalence. The development of egg and the time taken to reach the infective stage in egg cultures of Ascaridia galli, Heterakis gallinae, Syngamus trachea, Ascaiidia columbae, Capillaria obsignata and Ornithostrongylus qiadriradiatus maintained at different room temperature were studied and recorded. The cross transmission trnls with fowl nematodes; A. galli, H. gallinae and S. trachea and pigeon nematodes; A. columbae, C. obsignata and 0. qadriradiatus were conducted in pigeons and chicks respectivdy. Syngamus trachea and C. obsignata were found to be trasmissible between pigeons and chicks. The detailed life cycles of A columbae, S. trachea and 0. quadriradiatus in pigeons were worked out in detail. The prepatent period for these species was 46, 28 and 7 days respectively. The infective larvae of 0. quadriradiatus were seen to be phototropic and hydrotactic. They remained viable for 47 to 52 and 60 to 67 days in dry and wet seasons respectively. The clinical signs, gross and hlstopathological lesions produced by the nematodes in pigeons were recorded. Moderate infections of 0. guadriradlatus produced anaemic changes in pigeons.