The crop caeca were also examined for the presence of trypanosome forms.
The columns represent the number of birds from each group, as a percentage, from which the inoculated strain was isolated from the caeca.
The caeca of all chickens were isolated aseptically after necropsy.
Few oocysts could be recovered from caeca given a zero score and therefore these caeca were not used for the selection of a resistant line.
Alternatively, immature worms may migrate from the intestine to the pyloric caeca as they develop.
Birds were then euthanased and their caeca removed for parasite and parasite egg estimation.
The caeca and vitellaria were also adversely affected by drug treatment.
The strain used colonized caeca and internal organs of chickens to a high extent 1 week after infection with a low-dose inoculum.
