Sagulnus spp. (Tamarins) 
Utilization 
Numerous species of Saguinus have special value for biomedical research. 
myStax is especially needed because of its susceptibility to hepatitis 
A virus; oedipus is important for work in viral oncology; fuscicollis , 
nigrlcollis , labiatus , and others are used in virology, immunology, 
dental studies, reproductive physiology, behavioral studies, and other 
research. There is evidence that research demands for these species 
will Increase. Their potential use as test animals for hepatitis and 
for cancer research suggests that large numbers will be needed over a 
long period of time. In 1977, at least 2,200 animals are required. 
More could effectively be used for much needed research were they avail¬ 
able. 
Foreign Sources 
These primates, which are found within the tropical and montane forests 
of South America, have decreased in number over recent years. One 
species, oedipus , has even been listed as endangered. The export of 
these animals, accordingly, has been prohibited by most South American 
countries, and supplies are practically unavailable via commercial 
channels. However, in recognition of their special value and the urgent 
need for them in health research, small numbers have been made available 
to the United States both directly and via an international program 
being initiated by PAHO. This program gives emphasis to the captive 
breeding of Saguinus species in source countries and should provide for 
a part of the research needs. 
Production in United States 
Domestic production of various Saguinus species within the private 
sector is limited to a few colonies at several institutions which breed 
them for their own internal use. Government-supported breeding exists 
only on a small scale with an annual production level of 460 animals 
expected in 1980. Of these animals, only 60-100 S_. oedipus are made 
available for general use with the remainder allocated to special programs. 
Recommendations 
Domestic production of oedipus should be increased with an additional 
breeding colony capable of producing 150 weanling-age animals per year. 
The progeny of this colony would be made available for general-purpose 
use to a wide spectrum of performers. 
Since mystax is not available at all to the general research community 
and the demand is great involving many performers, two colonies, each 
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