INTERTRANSMISSIBILITY OF THE COMMON NEMATODE PARASITES OF PIGEON (columbalivia domestica) AND DOMESTIC FOWL (gallus gallus domesticus)
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Date
1996
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COLLEGE OF VETERINARY AND ANIMAL SCIENCES Mannuthy - Thrissur
Abstract
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.
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