EL ZERANOL: SUS EFECTOS EN CERDOS DE ENGORDE
Keywords:
zeranol, cerdosAbstract
Se implantaron "pellets" de 12 mg de zeranol en 11 cerdos a los 3 días de nacidos y se repitió la dosis a los 37 y 128 días de edad; como testigos quedaron 12 lechones de iguales características.
Todos los animales se pesaron antes de iniciar la prueba, repitiendo la operación a intervalos mensuales, excepto la pesada de los 5 meses que no se llevó a cabo. Al finalizar ia prueba (188 días) no se obtuvieron diferencias significativas entre los cerdos implantados y los testigos.
Se obsen;ó en los cerdos tratados el denominado "Síndrome Estrogénico" evidenciado por el edema de la vulva, de mamas y de la porción craneal del escroto.
References
BORGER, M.L., WILSON, L., SINK, J.D., SIEGLER, J .D., DAVIS, S.L., ORLEY, C.F., RUGH, M.C. Zeranol and protein effects on finishing steers. J. Anim. Sci. 33: 275-276 (1971).
BLOOD, D.C., HENDERSON, J.A. Medicina Veterinaria. 4a. ed. Méjico , Interamericana. Págs 882-883 (1976).
DUNCAN, D.B. Multiple range and multiple Ftests. Biometrics. 11: 1-42 (1955).
DUNNE, H.W. Enfermedades del cerdo. 2a. ed. Méjico, Uteha. Págs. 681-682 (1967).
LOPEZ, A.L. Manual del vendedor. Méjico, Comsolmex, S.A., S.F. 50 páginas.
MERCHANT, LA., PARCKER, R.A. Bacteriología y virología veterinaria. 3a. ed. Zaragoza, Acribia. Pág. 580 (1975).
OLSE, R.F., WANGSNESS, P.J., MARTIN, R.J., GAHAGAN, J.H. Effects of zeranol on blood metabolites and hormones in wether lambs. J. Anim. Sci. 45: 1392-1397 (1977).
ORTIZ, F. El empleo del zeranol en las especies equina y porcina. 1er Congreso Médico Veterinario. San José, Costa Rica (1979).
RIESEN, J .W., BEELER, B.J., ABENES, F.B., WOODY, C.Q. Effects of zeranol on the reproductive system of lambs. J. Anim. Sci. 45: 293-298 (1977).
ROSILES, R., LOPEZ, R. Síndrome estrogénico de origen alimentario. Veterinaria . Méjico 8: 123-127 (1977).
ROTHENBACHER, H., WIGGINS, J.P., WILSON, L.L. Pathologic changes in endocrine glands and certain other tissues of lambs implanted with the synthetic growth promotant zeranol. Am. J. Vet. Res. 36: 1313-1317 (1975).
SHARP, G.D., DYER, LA. Zeranol metabolism in steers. J. Anim. Sci. 34: 176-179 (1972).
STOB, M. , BALDWIN, R.S., TUITE, J ., ANDREWS, F.N., GILLETE, K.G. Isolation of an anabolic, uterotropic compound from com infected with Gibberella zeae. Nature. 196: 1318 (1962).
UTLEY, P.R., CHAPMAN, H.D., MC CORMICK, W.C. Response of'finishing heifers the Des, zeranol and MGA. J. Anim. Sci. 37: 358 (1973).
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