Once again I got stuck with  old Russian papers ...

Anyone have access to the following papers?

Haydek says (Annu. Rev. Entomol. 1970.15:143-156)

"Practically  nothing  is  known  about  the mineral  requirements  of
larvae.
There  are  some  indications  (8)  that  cobalt  added  to  sugar
solution  fed  to
colonies of bees increases the growth rate of the larvae reared."

"Not only  the proper  nutritional  balance  of food  elements  is essential
for
growth of honey bee larvae  (16)  but the proper balance of certain unknown
substances  is  important.  This  can  be  demonstrated  from  the  fact
that  it  is
impossible  to rear  larvae  to pupation using  only the food  of  young
queen  or
worker larvae  (97,  105). There  are also  indications of  improved  brood
rear­ing when  the food of nurse bees  contains heteroauxins  (23), oil
growth  fac­tor, antibiotics,  cobalt  (24), or giberellic acid  (84). "

*8.  Burtov,  V.  Ya.  Effect  of  cobalt  on reproduction  in  honeybees.
Sel. Khoz.  Sev.  Kaukaza,  2,  77-79  (1958)  (In  Russian)

24.  Glushkov,  N.  M.,  Yakovlev,  A.  S New  data on  how  to  use  growth
stimulators  in  apiculture.  Proe Inter".  Beekeeping  Jubilee  Congr
20th,  Bucharest,  114-17  (1965)*

-- 
Juanse Barros J.
APIZUR S.A.
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