RESUMEN
For the first time the agent of diphyllobothriosis Lake Baikal is the cestoda D. dendriticum establishted by T.P. Chizhova and P.G. Gofman-Kadoshnikov (1962). D. dendriticum reaches maturity in human intestine, but it is considered, that the relationships between the parasite and human are facultative property (Klebonovski 1985). The results of the investigation of the diet of sea-gull nestlings (control-uninfected and experimental-infected birds with cestoda groups) and stress influence (starvation) on the mass loss in experimentally and naturally infected ones with different duration conditions adaptation of experiments are discussed in this article.
Asunto(s)
Enfermedades de las Aves/fisiopatología , Enfermedades de las Aves/parasitología , Charadriiformes/parasitología , Difilobotriosis/fisiopatología , Diphyllobothrium/fisiología , Conducta Alimentaria , Inanición/fisiopatología , Adaptación Biológica , Animales , Charadriiformes/crecimiento & desarrollo , Difilobotriosis/parasitología , Ecosistema , Agua Dulce , Interacciones Huésped-Parásitos , Federación de Rusia , Inanición/parasitologíaRESUMEN
Dynamics of egg production of the tapeworm Diphyllobothrium dendriticum has been estimated experimentally in nestlings of the herring gull Larus argentatus per day and per reproductive period. The number of eggs in strobiles has been estimated for the maturation period. Mean egg production of the tapeworm per day (10.43 +/- 2.72 mln) is two orders of magnitude as high as the maximum number of eggs in a mature strobile (0.206 +/- 0.007). It is proposed to estimate coefficient of reproduction intensity as the ratio of egg output per unit of time and maximum egg number in a mature strobile.
Asunto(s)
Diphyllobothrium/fisiología , Animales , Animales Salvajes , Enfermedades de las Aves/parasitología , Aves , Difilobotriosis/parasitología , Difilobotriosis/veterinaria , Femenino , Fertilidad , Óvulo/fisiología , Recuento de Huevos de Parásitos/veterinariaRESUMEN
The dynamics of egg production of the tapeworm D. dendriticum has been estimated experimentally in nestlings of the herring gull Larus argentatus per day and per reproductive period. Numbers of eggs in strobilae have been estimated for the maturation period. Mean egg production, of one tapeworm per day (10.42 +/- 2.72 mln) is two orders of magnitude as high as the maximal number of eggs in a mature strobila (0.206 +/- 0.007). It is proposed to estimate the coefficient of reproduction intensity as the ratio of egg output per unit of time and maximum egg numbers in a mature strobila.
