Dirk Van den Abeele
FAQ: some breeder claims that they have pale Agapornis fischeri and that not all pale youngsters are born with red
On request we published a list of proven and possible colour mutations in Forpus coelestis. You can consult it on
FAQ: How to determine the reduction percentage of the eumelanin for colour mutations? We often read in the standards and
As with any possible new colour mutation, there are many opinions in the early stages. There are believers and non-believers.
Ismael Galván of National Museum of Natural Sciences (Spain) uncovers to exciting role of porphyrin colouration and what it might
Sometimes breeders can argue about the most crazy things, that’s what i learned this week 🙂 I received 14 emails
FAQ: is it possible that a gene has a different expression after genetic introgression (transmutation)? For a start: The expression
A new case of parthenogenesis has been described in California condor (Gymnogyps californianus) Parthenogenesis is a relatively rare event in
In 2018 we received information from a South African Agapornis breeder that the dun fallow Agapornis fischeri / Agapornis personatus
Fallow mysteries By Dirk Van den Abeele Ornitho-Genetics VZW MUTAVI, Research & Advice Group Published BVA-International magazine February 2017 That
FAQ: What is the best way to name the combination of a crossing-over with alleles of the same genes or
FAQ: In the BVA-International nomenclature, the name of a mutation is never written with a capital letter (except at the
FAQ: Is the difference between eumelanin and phaeomelanin visible on cross sections of feathers? Yes, that difference is clearly visible
FAQ: is green the same as wild type? When we search for the meaning of wild type in a dictionary,
This afternoon we had a follow-up to our webinar of March 19 about Non-Mendelian inheritance and epigenetic change in colour
FAQ: is it possible that the “goldenface” budgerigar [Melopsittacus undulatus] is genetically identical with the bl1-bl2/bl1 Agapornis fischeri (*aqua* phenotypes)