Hoy por tuiter veo al Consorcio Apícola celebrando 5 años.
Como el texto da para todo, y el marketing es muy importante, los veo contentos manifestando que son lo mejor del mundo mundial.
Lo mejor que le puede haber pasado a la apicultura chilena desde los tiempos del precursor Larraín Gandarillas. Para mi que la innovación consiste en sacarle billete al fisco y nada más. En eso son reinas.
Y en vista del texto en ingles de más abajo me pregunto ¿sabemos que haplotipo de varroa es la que tenemos en Chile? ¿Uno sólo o los dos?
Eso si que sería un aporte a la apicultura nacional. Conoce a tu enemigo mejor a que ti mismo.
Pero todavía me cae bien Barney, así que les daré un año más. Por ahora creo que me concentraré en ONG Plan Bitch
"The transferring of mites across different species suggests that host
species also affects mite reproduction. When mites from A. cerana were
introduced to A. mellifera worker brood, only 10% of the mites
reproduced, while 80% reproduced when A. mellifera mites were transferred
to A. cerana worker brood. In our study, Varroa destructor, Korea
haplotype, from A. mellifera reproduced equally well (all > 90%
reproduced), regardless of whether it transferred to A. mellifera or to A.
cerana, in both drone and worker castes (Ting Zhou, Shuangxiu Huang and
Zachary Huang, unpublished data). In contrast, V. destructor, Vietnam
haplotype, from A. cerana only reproduced on A. cerana drones (83%
reproduced, N=62), and not on A. cerana workers (0% reproduced on
workers, N=60). These results suggest that the mites on the two honey bee
species are different: mites from A. cerana refrain from reproducing on
worker brood of the same species, and mites from A. mellifera reproduce
well on worker brood, regardless of the host species. It appears that only
the Korea haplotype of V. destructor had a genetic change that enabled it
to reproduce on either drone or worker brood in A. mellifera, therefore
allowing it to build up to levels damaging to the bees. In China, my
colleagues and I did not find damaging levels of V. destructor in A.
cerana colonies – in fact, in most locations, the mites could not be
found. When we found it, it was the Vietnam haplotype which does not
reproduce in the worker brood of A. cerana. It is not clear why the
Korea haplotype of V. destructor does not cause damage in A. cerana,
since they can reproduce in both worker and drone brood in transfer
experiments."
http://www.extension.org/pages/65450/varroa-mite-reproductive-biology#.UpYWTCfUfd6
No hay comentarios.:
Publicar un comentario