Summary
In July 1991, 29 frozen imported Holstein Friesian embryos were transferred into synchronised recipients in Uganda. Recipient cows and heifers from indigenous breeds of cattle and their crosses in Uganda were used. The project resultéd in 17 pregnancies confirmed by rectal palpation at 8 weeks. Twelve live calves were born of which 7 were heifers and 5 were bulls. One heifer calf died at one month of age from East Coast fever. One pregnant recipient died of East Coast fever 2 months before calving. Two recipients aborted in late gestation as a result of trauma incurred during fighting. Two calves were lost as a result of dystocia. The transfer work and calvings were performed at 3 different farms under varying conditions. The 11 surviving animals are being reared on a single unit where growth rates and performance data are being recorded.
Résumé
En juillet 1991, 29 embryons Frison × Holstein importés ont été transférés à des vaches et génisses receveuses synchronisées appartenant à des races locales et croisées en Ouganda. Il en a résulté 17 gestations confirmées par palpation rectale à 8 semaines. Douze veaux vivants sont nés dont 7 étaient des femelles et 5 des mâles. Une velle est morte de theileriose à un mois, ainsi qu'une vache receveuse 2 mois après vêlage. Deux receveuses ont avorté en fin de gestation à cause d'un traumatisme provoqué durant une lutte. Deux veaux ont été perdus à la suite d'une dystocie. Le transfert d'embryons et les vêlages ont été réalisés dans 3 fermes différentes dans des conditions variées. Les 11 animaux survivants ont été élevés dans un seul lieu où leurs taux de croissance et les données de performance ont été enregistrés.
Resumen
En julio de 1991, se transfirieron 29 embriones importados de Holstein Friesian, en recipientes sincronizadas en Uganda fueron usadas como recipentes vacas y vaquillas de razas criollas y sus cruces. El proyecto resultó en 17 preñeces confirmadas mediante palpación rectal a las ocho semanas. Doce terneros nacieron, de los cuales siete fueron hembras y cinco fueron machos. Una de las terneras murió al mes de nacida de Fiebre de la Costa Este. Una de las recipientes preñadas murió la de la misma enfermedad dos meses antes del parto. Dos recipientes abortaron en el tercer tercio de la gestación, debido a traumas al pelear. Dos neonatos murieron durante partos distócicos. La transferencia se llevó a cabo en tres granjas differentes, bajo condiciones distintas. Los once sobrevivientes estan criándose en una sóla unidad, donde se estan registrando las tasas de crecimiento y otros parámetros.
Similar content being viewed by others
References
Cunningham, E. P. &Syrstad, O. (1987). CrossbreedingBos indicus andBos taurus for milk production in the tropics. Food and Agriculture Organisation of the United Nations. FAO Animal Production and Health Paper 68.
Curtis, J. L. (1991). Cattle Embryo Transfer Procedure. Academic Press. pp 107–110.
Elsden, R. P. &Seidel, G. E. Jr. (1985). Procedures for Recovery, Bisection, Freezing and Transfer of Bovine Embryos. Animal Reproduction Laboratory. Bulletin No. 2. Colorado State University, pp 19–20.
Fulgensio, J. M. (1989). The role of prostaglandin F2 alpha and its analogues in the management of cattle fertility and its application to cattle breeding in Uganda. MSc dissertation, Department of Tropical Animal Health, Faculty of Veterinary Medicine, University of Edinburgh, p 41.
Jordt, T. &Lorenzini, E. (1988). Superovulation, collection and transfer of embryos and demi-embryos from Boran (Bos indicus) cows and heifers.Theriogenology,30, 355–367.
Jordt, T. &Lorenzini, E. (1990). Multiple superovulations in N'Dama heifers.Tropical Animal Health and Production,22, 178–184.
Macfarlane, J. S. &Goodchild, A. (1973). The effect of age of female on fertility of zebu cattle.Tropical Animal Health and Production,5, 128–132.
Mahon, G. D. &Rawle, J. E. (1987). The export of deep frozen bovine embryos.Theriogenology,27, 21–35.
Newcombe, R. (1981). Egg Recovery and Transfer in Cattle. In:Mammalian Egg Transfer. (Ed. Cyril Adams). CDC, pp 85–98, 101–109.
Pearson De Vaccaro, L. (1990). Survival of European dairy breeds and their crosses with zebus in the tropics.Animal Breeding Abstracts,58, No. 6, 437–446.
Pettit, W. J. (1985). Commercial freezing of bovine embryos in glass ampoules.Theriogenology,23, 13–16.
Seidel, G. E. Jr. &Elsden, R. P. (1989). Embryo Transfer in Dairy Cattle.Hoard's Dairyman, 27–28.
Seidel, G. E. Jr. &Seidel, S. M. (1991). Training manual for embryo transfer in cattle. Food and Agriculture Organisation of the United Nations. FAO Animal Production and Health Paper 77, pp 27–31, 18–21.
Sreenan, J. M. (1988). Embryo Transfer; its uses and recent developments.Veterinary Record,122, 624–629.
Voelkel, S. A. &Hu, Y. X. (1992). Direct transfer of frozen-thawed bovine embryos.Theriogenology,37, 23–37.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Cumming, I., Friend, A. & Aguma, C.O. Use of indigenous breeds of cattle and their crosses in Uganda as recipients for importedBos taurus embryos. Trop Anim Health Prod 26, 119–126 (1994). https://doi.org/10.1007/BF02239914
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02239914