Summary
Measurements of blood and plasma volumes using131I-albumin, and of red cell volume using51Cr in goats and sheep infected withTrypanosoma vivax for 1 to 2 months (at which time the anaemia was severe) showed statistically significant increases in blood volume (29 per cent and 57 per cent) and plasma volume (44 per cent and 59 per cent), and decreases in red cell volume per kilogram body weight (49 per cent and 50 per cent) in goats and sheep respectively. Total serum proteins and gamma globulins increased, while serum albumin decreased,inT. vivax infected sheep and goats, These findings indicate that the anaemia manifested, with mean packed cell volume decreased by 60 per cent and 47 per cent in goats and sheep respectively at the time of red cell volume measurements, is attributble partly to haemodilution and partly to an actual decrease in total volume of circulating red blood cells.
Résumé
L'étude des volumes de sang et de plasma à l'aide de l'albumine I131 et cell du volume des globules rouges par le Cr51 chez des chèvres et des brebis infestées parTrypanosoma vivax depuis un à deux mois (à ce moment l'anémie est sèvère) montre des différences statistiquement significatives dans l'accroissement du volume sanguin (29 p. 100 et 57 p. 100) et du volume plasmatique (44 p. 100 et 59 p. 100) et dans la diminution du volume des globules rougespar kg de poids vif (49 p. 100 et 50 p. 100) respectivement chez les chèvres et les moutons. Le total des protéines sériques et des gamma globulines a augmenté alors que les albumines sériques diminuaient chez les animaux infestés parT. vivax. Ces recherches montrent que l'anémie constatée, avec dimunition de 60 p. 100 chez les chèvres et de 47 p. 100 chez les moutons due volume des globules rouges, est attribuable pour partie à l'hémolyse et pour partie à une diminution certaine du volume total des globules rouges en circulation dans le sang.
Resumen
Mediciones del volumen plasmático y sanguíneo utilizando131I-albúmina y del volúmen eritrocítico utilizando51Cr en cabras y ovejas infectadas conTrypanosoma vivax por 1 a 2 meses (cuando la anemia era severa), mostraron incrementos estadísticos significativos en volúmen sanguíneo (29% y 57%) y disminución del volúmen eritrocítico por kilogramo de peso corporal (49% y 50%) respectivamente. El total de proteínas séricas y de gama globulinas aumentaron mientras que las sero-albúminas disminuyeron. Estos cambios indican que la anemia observada cuando el hematocrito decrece en un 60 y 47 por ciento en cabras y ovejas respectivamente cuando se efectúan las mediciones del volúmen eritrocítico, es atribuíble parte a la hemodilución y parte a la disminución del volúmen total de eritrocitos circulantes.
Similar content being viewed by others
References
Clarkson, M. J. (1968). Blood and plasma volumes in sheep infected withTrypanosoma vivax.Journal of Comparative Pathology,78, 189–193.
Desowitz, R. S. (1959). Studies on immunity and host-parasite relationships. I. The immunological response of resistant and susceptible breeds of cattle to trypanosomal challenge.Annals of Tropical Medicine and Parasitology,53, 293–313.
Fiennes, R. N. T.-W. (1954). Haematological studies in trypanosomiasis of cattle.Veterinary Record,66, 423–434.
Jennings, F. W., Murray, M., Murray, P. K., &Urquhart, G. M. (1974). Anaemia in trypanosomiasis: studies in rats and mice infected withTrypanosoma brucei.Research in Veterinary Science,16, 70–76.
Luick, R. J. (1970). Use of radioactive isotopes in veterinary clinical biochemistry. InClinical Biochemistry of Domestic Animals, Vol. II (eds J. J. Kaneko & C. E. Cornelius), p. 271. Academic Press, New York and London.
Naylor, D. C. (1971a). The haematology and histopathology ofTrypanosoma congolense infection in cattle part II.Tropical Animal Health and Production,3, 159–168.
Naylor, D. C. (1971b). The haematology and histopathology ofTrypanosoma congolense. Infection in cattle. Part III.Tropical Animal Health and Production,3, 203–207.
Smithers, S. R. &Terry, R. J. (1959). Changes in the serum proteins and leucocyte counts of rhesus monkeys in early stages of infection withTrypanosoma gambiense.Transactions of the Royal Society of Tropical Medicine and Hygiene,53, 336–345.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Anosa, V.O., Isoun, T.T. Serum proteins, blood and plasma volumes in experimentalTrypanosoma vivax infections of sheep and goats. Trop Anim Health Prod 8, 14–19 (1976). https://doi.org/10.1007/BF02383360
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02383360