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Dirk Van den Abeele

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  • FAQ: Can pallid revert back to SL ino?

    27/07/2026 Dirk Van den Abeele

    FAQ: Is it possible that, after several generations, the offspring of a pallid hen suddenly produce only SL ino young, assuming we are certain that

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  • FAQ: Naming order in mutation combinations

    27/04/2026 Dirk Van den Abeele

    FAQ: Naming order in mutation combinations Enthusiasts often like to combine different color mutations. This raises the question: in what order should the names of

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  • FAQ: melanin, eumelanin, phaeomelanin, melanocytes, melanosomes and keratinocytes?

    20/03/2026 Dirk Van den Abeele

    Nederlandse versie onderaan FAQ: When studying your articles on feather structure, terms such as melanin, eumelanin, phaeomelanin, melanocytes, melanosomes and keratinocytes in bird feathers are

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  • FAQ: Can a DNA or blood test detect the presence of colour mutations (split factor) in the genome?

    01/03/2026 Dirk Van den Abeele

    Nederlandse versie onderaan FAQ: Can a DNA or blood test detect the presence of colour mutations in the genome? We’ve been receiving this question more

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  • FAQ: pallidino or PallidIno?

    06/12/2025 Dirk Van den Abeele

    FAQ: The international guidelines state that combinations of alleles should be written as one word and that the names of both alleles must begin with

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Fallow mysteries – update

01/11/2021 Dirk Van den Abeele General

In 2018 we received information from a South African Agapornis breeder that the dun fallow Agapornis fischeri / Agapornis personatus

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Fallow mysteries

19/10/2021 Dirk Van den Abeele Articles - Artikels, Articles UK

Fallow mysteries By Dirk Van den Abeele Ornitho-Genetics VZW MUTAVI, Research & Advice Group Published BVA-International magazine February 2017 That

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FAQ: What is the best way to name the combination of a crossing-over with alleles of the same gene or epistatic genes??

07/10/2021 Dirk Van den Abeele FAQ

FAQ: What is the best way to name the combination of a crossing-over with alleles of the same genes or

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FAQ: use of capital letters in names of color mutations

30/09/2021 Dirk Van den Abeele FAQ

FAQ: In the BVA-International nomenclature, the name of a mutation is never written with a capital letter (except at the

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FAQ: Is the difference between eumelanin and phaeomelanin visible on cross sections of feathers?

01/08/2021 Dirk Van den Abeele FAQ, General

FAQ: Is the difference between eumelanin and phaeomelanin visible on cross sections of feathers? Yes, that difference is clearly visible

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FAQ: Green versus wild type

21/07/2021 Dirk Van den Abeele FAQ, General

FAQ: is green the same as wild type? When we search for the meaning of wild type in a dictionary,

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Follow-up to our webinar on Non-Mendelian inheritance and epigenetic change in colour mutations in birds

16/07/2021 Dirk Van den Abeele General

This afternoon we had a follow-up to our webinar of March 19 about Non-Mendelian inheritance and epigenetic change in colour

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FAQ: goldenface budgerigar versus bl1-bl2/bl1 Agapornis fischeri

06/07/2021 Dirk Van den Abeele FAQ, General 5 comments

FAQ: is it possible that the “goldenface” budgerigar [Melopsittacus undulatus] is genetically identical with the bl1-bl2/bl1 Agapornis fischeri (*aqua* phenotypes)

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FAQ: What about *pallid* Agapornis fischeri?

19/06/2021 Dirk Van den Abeele FAQ, General 26 comments

FAQ: What about *pallid* Agapornis fischeri? Read update of 17/01/2022 The first reports we received about the possible existence of

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The start

13/05/2021 Dirk Van den Abeele General 6 comments

We just started with DNA extraction to examine the blue locus in genus Agapornis.

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Study of the presence of pheomelanin in parakeet feathers

31/03/2021 Dirk Van den Abeele Articles - Artikels, Articles UK, General 7 comments

Study of the presence of pheomelanin in parakeet feathers By Dirk Van den Abeele Ornitho-Genetics VZW MUTAVI, Research & Advice

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FAQ: How to distinguish between the different fallow types in genus Agapornis?

13/03/2021 Dirk Van den Abeele FAQ, General 7 comments

FAQ: How to distinguish between the different fallow types in genus Agapornis? The existing fallow types In genus Agapornis are

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Update on *AR grey* Agapornis roseicollis

01/03/2021 Dirk Van den Abeele General One comment

A few weeks ago, I was approached by Florian Gouze (France) who had reservations by the* AR grey* Agapornis roseicollis,

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In search of the genetic background of *Sapphire* Agapornis fischeri.

16/02/2021 Dirk Van den Abeele Articles - Artikels, Articles UK, General 14 comments

A more extensive and detailed version of this article has been published in the BVA-International magazine of June 2021 In

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Papegaaien kweken: een stukje geschiedenis

28/01/2021 Dirk Van den Abeele Articles - Artikels, Artikelen NL

Papegaaien kweken: een stukje geschiedenis Door: Bert Van Gils Een aantal onder ons herinneren zich nog de tijd dat de

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Hoe oud worden papegaaien (echt)?

18/01/2021 Dirk Van den Abeele Articles - Artikels, Artikelen NL One comment

Hoe oud worden papegaaien (echt)? Door: Bert Van Gils Inleiding Papegaaien staan erom bekend dat ze hoge leeftijden kunnen bereiken

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Recent posts

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