scholarly journals A preliminary investigation on the gastrointestinal helminths of the Barbados green monkey, Cercopithecus aethiops sabaeus

2003 ◽  
Vol 45 (4) ◽  
pp. 193-195 ◽  
Author(s):  
Alex Mutani ◽  
Kamara Rhynd ◽  
Gabriel Brown
Keyword(s):  
Zinc Sulphate ◽  
Preliminary Investigation ◽  
Cercopithecus Aethiops ◽  
Research Centre ◽  
Primate Research ◽  
Gastrointestinal Helminths ◽  
Faecal Samples ◽  
Green Monkey ◽  
Cercopithecus Aethiops Sabaeus ◽  
Wildlife Reserve

Faecal samples were collected from fifty three freshly captured monkeys which were kept at the Barbados Primate Research Centre and Wildlife Reserve (BPRCWR). Examination of these samples for gastrointestinal helminths using the zinc sulphate floatation method revealed an overall infection rate of 88.7%.The parasites observed included Strongyloides (62.4%), Physaloptera (58.5%), Trichuris (52.8%), Hookworm (34.0%), Oesophagostomum (30.2%), Trichostrongylus (3.8%) and Ascaris (5.7%). No significant differences in overall prevalence were observed according to sex or age. Polyparasitism appeared to be common as it was observed in 92.5% of all monkeys examined. It is concluded that these monkeys could act as reservoirs of some of the parasites which can infect man.

The influence of geographic isolation on the skull of the green monkey ( Cercopithecus aethiops sabaeus ) I. A comparison between the teeth of the St Kitts and the African green monkey

1950 ◽  
Vol 137 (887) ◽  
pp. 212-238 ◽  
Keyword(s):  
West Indies ◽  
Third Molar ◽  
African Green Monkey ◽  
Cercopithecus Aethiops ◽  
Genetic Constitution ◽  
The West ◽  
Green Monkey ◽  
Parent Stock ◽  
The Caribbean ◽  
Cercopithecus Aethiops Sabaeus

A quantitative analysis has been made of the dental dimensions and indices of ( a ) a collection of skulls of the green monkey ( Cercopithecus aethiops sabaeus ) brought together from the island of St Kitts in the West Indies, and ( b ) a corresponding group of green monkey skulls collected in West Africa. The green monkey was introduced into St Kitts some 300 years ago; the African green monkey is the modern representative of its parent stock. Comparison shows that ( a ) the teeth of the green monkey in the West Indies are bigger than those of its present-day African cousin; ( b ) that there has been a decrease in the variance of the linear dimensions of the cheek teeth; and ( c ) that there has been an increase in the occurrence of such dental abnormalities as malposition, numerical variations, and variations in the number of roots of the third molar. These changes can be explained as an effect of selection acting on the original genetic constitution of the stock of green monkeys which became established in the Caribbean.

The influence of geographic isolation on the skull of the green monkey ( Cercopithecus aethiops sabaeus ). III. The developmental stability of the skulls and teeth of the St Kitts and African green monkey

1951 ◽  
Vol 138 (891) ◽  
pp. 213-218 ◽  
Keyword(s):  
Embryonic Development ◽  
Developmental Stability ◽  
Cercopithecus Aethiops ◽  
Genetic Constitution ◽  
Geographic Isolation ◽  
Original Stock ◽  
Green Monkey ◽  
Highly Correlated ◽  
Cercopithecus Aethiops Sabaeus ◽  
The Right

The dimensions of bilateral structures (e. g. teeth) are highly correlated, and bilateral variability is a measure of developmental stability, in so far as it is a manifestation of differences which arise during embryonic development. The part of the variance of cranial and dental dimensions of both the African and St Kitts green monkey which is due to differences between the right and left sides has already been shown to be, in general, insignificantly small compared with that due to differences between animals. Further analysis shows that the 'bilateral’ variance of several cranial and dental dimensions of the St Kitts green monkey differs significantly from that in its modern African cousin, and that it tends to be bigger. These new observations are consistent with the view expressed in our previous studies that the changes observed in the skulls and teeth of the St Kitts monkeys may be due to the action of selection on the genetic constitution of the original stock of monkeys which became established on St Kitts.

The influence of geographic isolation on the skull of the green monkey ( Cercopithecus aethiops sabaeus ) V. The degree and pattern of differentiation in the cranial dimensions of the St Kitts green monkey

1960 ◽  
Vol 151 (945) ◽  
pp. 563-583 ◽  
Keyword(s):  
The Other ◽  
Cercopithecus Aethiops ◽  
African Species ◽  
Green Monkey ◽  
Parent Stock ◽  
Size Contrast ◽  
The Difference ◽  
The One ◽  
Cercopithecus Aethiops Sabaeus ◽  
Free Ranging

Some 300 years ago, free-ranging colonies of green monkeys from the West African species Cercopithecus aethiops sabaeus became established on the Caribbean island of St Kitts. Today, the cranium of the St Kitts monkey is, on an average, 4% bigger than in the present-day mainland descendants of the parent stock. This overall divergence has been compared on the one hand with the differences between C. aethiops sabaeus and each of two distinct sub­species of C. aethiops , and on the other with the divergence between C. aethiops sabaeus and representatives of each of two additional full species of Cercopithecus . The average difference between the cranial dimensions of the St Kitts green monkey and its parent species, C. aethiops sabaeus , is of approximately the same size as that between C. aethiops sabaeus and C. cephus cephus , (the moustached monkey) but is less than the difference between the cranial dimensions of C. aethiops sabaeus and those of either C. aethiops aethiops (the grivet) or C. nictitans nictitans (the white-nosed monkey). On the other hand, while in common with the St Kitts monkey, C. nictitans nictitans is, on an average, in its cranial dimensions, bigger than C. aethiops sabaeus , both C. cephus cephus and C. aethiops aethiops are smaller. The cranium of C. aethiops pygerythrus (the vervet) does not, on an average, differ in size from that of C. aethiops sabaeus . In both the St Kitts green monkey and in C. aethiops aethiops the most marked differences from C. aethiops sabaeus are in the transverse dimensions of the palate and mandible. In C. nictitans nictitans both the antero-posterior and transverse dimensions of the palate and mandible differ from C. aethiops sabaeus to a greater extent than do those of other cranial regions, while in C. cephus cephus , the antero-posterior dimensions of all parts of the skull differ from C. aethiops sabaeus to a greater extent than do the transverse dimensions. Many of these differences in overall cranial size contrast with those previously established for the teeth, and when cranial and dental dimensions are considered together, it is found that the subgroups of Cercopithecus cannot be readily separated on the basis of differences in size and general proportions. As the pelage of the St Kitts monkey is apparently indistinguishable from that of C. aethiops sabaeus , it would be inappropriate to assign the island monkey to a distinct taxonomic group.

scholarly journals Retrospective Analysis of the Effectiveness and Reversibility of Long-Acting Contraception Etonogestrel (Implanon®) in Common Marmosets (Callithrix jacchus)

Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 963
Author(s):  
Sandra Roubos ◽  
Annet L. Louwerse ◽  
Jan A. M. Langermans ◽  
Jaco Bakker
Keyword(s):  
Control Method ◽  
Population Control ◽  
Callithrix Jacchus ◽  
Research Centre ◽  
Primate Research ◽  
Common Marmosets ◽  
Neonatal Deaths ◽  
Unintended Pregnancies ◽  
Colony Management ◽  
Long Acting

Contraception is an important population control method for the colony management of primates housed in captivity. Etonogestrel (ENG) implants (i.e., Implanon®) are a widely used progestin-based contraceptive in common marmosets (Callithrix jacchus) with the theoretical advantages of being reversible and long-acting. However, no dose and efficacy data are available yet. Therefore, data from 52 adult female marmosets contracepted with ENG (one-fourth or one-third of an implant) housed at the Biomedical Primate Research Centre (BPRC, Rijswijk, The Netherlands) over the past 18 years were analyzed. Using an electronic database, a retrospective longitudinal cohort study was conducted to calculate the reproductive data before, during and after ENG use. The data show an effectiveness in preventing pregnancy of 99%. The implant was effective within one week after insertion. Unintended pregnancies did occur, but in 60% of these cases, the animals were already pregnant at the time of implant insertion. In these cases, healthy offspring were born despite the use of the implant. No stillbirths, neonatal deaths or maternal deaths could be linked to ENG use. After implant removal, 83% of the animals delivered healthy offspring. No difference in contraception efficacy was observed between the use of one-fourth or one-third of an implant. ENG achieved a contraceptive protection exceeding 99% and was shown to be reversible concerning fertility. To our knowledge, this is the first detailed analysis on the use of ENG in marmosets.

Peripheral correlates of serotonergically-influenced behaviors in vervet monkeys (Cercopithecus aethiops sabaeus)

1981 ◽  
Vol 72 (3) ◽  
pp. 241-246 ◽  
Author(s):  
M. J. Raleigh ◽  
A. Yuwiler ◽  
G. L. Brammer ◽  
M. T. McGuire ◽  
E. Geller ◽  
...  
Keyword(s):  
Cercopithecus Aethiops ◽  
Vervet Monkeys ◽  
Cercopithecus Aethiops Sabaeus

scholarly journals Epidemiology of gastrointestinal helminths infections in Dorper sheep in a semi-arid area of Kenya

2004 ◽  
Vol 71 (3) ◽  
Author(s):  
C.J. Ng'ang'a ◽  
N. Maingi ◽  
W.K. Munyua ◽  
P.W.N. Kanyari
Keyword(s):  
Age Groups ◽  
Dry Season ◽  
Arid Area ◽  
Wet Season ◽  
Weather Factors ◽  
Gastrointestinal Helminths ◽  
Faecal Samples ◽  
Dorper Sheep ◽  
Short Rains ◽  
Semi Arid

A survey on the prevalence and intensity of infection with gastrointestinal helminths of Dorper sheep in relation to age and weather factors was carried out on a ranch in Kajiado district, a semi-arid area of Kenya for a period of 13 months (May 1999 to May 2000). Faecal samples from lambs (3 months to 1 year), yearlings (1-2 years) and adult breeding ewes (2-4 years) were examined for helminth egg output and helminth genus composition at 3-week intervals. The results indicated that the prevalence of strongyle and tapeworms infections were highest for lambs, followed by the adult breeding ewes and then for the yearlings. In all age groups the proportions of infected animals were higher during the wet season than in the dry season for both nematodes and tapeworms. The mean strongyle egg counts were higher during the dry season for lambs, but were higher during the wet season for the other age groups. Mixed strongyle infections were detected, with Trichostrongylus (55 %), Haemonchus (28 %), Cooperia (10.5 %) and Oesophagostomum (6.5 %) being the most frequently encountered genera throughout the study period. The trends in strongyle faecal egg counts indicated the occurrence of hypobiosis, with resumption of development towards the end of the dry season and at the onset of the short rains in October and November. Self-cure was also observed in September and November in all age groups, although less frequently in lactating ewes. The prevalence and intensities of infection with gastrointestinal helminths in this area appeared to be influenced by the age of the host and weather factors.

Sign in / Sign up

Export Citation Format

Share Document