in old lorises, but in younger lorises, too, complete blindness
cataract has occurred, maybe because of infection or a
(diabetes-related?). Blind animals at Ruhr-University usually
move in a
normal-looking way when familiar with the pathways in their
cage, and blindness
may therefore be recognized with some delay. Some blind animals
susceptible to stress by unfamiliar noise. In cages of blind
all branches a free zone (at least 15 cm high) without sharp
for head and eyes is provided 15.
develop because of normal grooming behaviour and subsequent
of hair, which usually is found in faeces. At Ruhr-University,
females died of bezoars; no evident behavioural symptoms with
of reduced food consumption and in one animal occasional
coughing and subsequent
chewing (sort of vomiting?) were observed. (Overgrooming mght
danger of bezoar formation; in Loris overgrooming has
been observed in cases of social stress15, but no
were noticed in the animals concerned. Death from trichobezoars
reported in one Nycticebus and two Arctocebus,
to overgrooming caused by boredom or stress10.
prophylactic measures see under "preventive measures".
Tooth problems due
or root infection may occur; infected teeth may lead to
infection and secondary disease 61.
There is some
for problems related to disturbed blood circulation such as skin
or necroses in peripheral parts of the limbs in emaciated
animals with severe kidney disease or diabetes; end stage in
cases of severe
quarantain stress, animals rejecting food) and organ lesions due
blood circulation (oxygen deficiency) or stasis in emaciated
under stress conditions. Such problems might be related to the
metabolism and blood vessels (presence of retia mirabilia),
information is still lacking.
Loris and related species: health
Last amendment: 2 October 2002
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