M.
ABDUSSALAM
21
esembling that described by Coles [1937]
fowls has been recorded from northern
ndia.
2. These haematozoa did not appear to
et up any appreciable disease symptoms
n the adult indigenous fowls or acclima-
ized imported breeds.
3. In an attempt to experimentally
ecover A. pullorum from naturally infect-
d ticks (Argas persicus), two Leghorn
chickens were exposed to the tick bites.
These birds suffered from a mild attack
of spirochaetosis on the 6th day and re-
-vered; on the 14th day they, however,
howed A. pullorum in their peripheral
lood.
4. The symptoms shown by infected
chickens were a progressive anaemia and
maciation, slight rise of temperature,
lullness, diarrhoea and death in about four
weeks' time. The main post-mortem
indings were: the enlargement of the
spleen and liver, petechiae on the serous
membranes, slightly blood-tinged fluid in
erous cavities and cachexia.
5. Coles' haematozoon did not appear
set up any disease symptoms in fowls
and circumstantial evidence showed that
his organism was probably transmitted by
in agency other than the fowl tick.
6. Soamin, in the usual doses employed
for the treatment of spirochaetosis, was
found to have no effect either on A. pul-
orum or Coles' haematozoon.
ACKNOWLEDGEMENTS
The writer is indebted to Mr J. S. Gare-
wal, I.V.S., for facilities and encourage-
ment; he is also grateful to Rai Bahadur
S. K. Sen, Officer Incharge, Veterinary
Zoology Section, Imperial Veterinary Re-
search Institute, Mukteswar, for helpful
criticisms and to Dr H. N. Ray, Protozoo-
logist at the same Institute for examining
his preparations and confirming the identi-
fications. The writer also wishes to record
his indebtedness to Rai Bahadur P. N.
Nanda, Superintendent, Government Cattle
Farm, Hissar, who placed his private flock
of valuable fowls at his disposal for this
inquiry.
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