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  • From Cees on Blue, blue type2, turquoise, *sapphire*, *teal*,…. and so much more ….

    Nog nooit en geen enkele blauwe gekweekt uit mijn turquoise. Denk niet dat blauw type 2 in Nederland bestaat

    2019/06/17 at 2:45 pm
  • From Lee Naidoo on Blue, blue type2, turquoise, *sapphire*, *teal*,…. and so much more ….

    it would appear that there is a type 2 blue in psittacula krameri manilensis.. has there been any confirmation from breeders in this regard?

    2019/06/17 at 4:30 am
  • From a breeder on Blue, blue type2, turquoise, *sapphire*, *teal*,…. and so much more ….

    What about a seminar in the US? We need your knowledge.

    2019/06/16 at 7:23 pm
  • From James Berg on Blue, blue type2, turquoise, *sapphire*, *teal*,…. and so much more ….

    The best!!
    Clear info and answers.

    2019/06/16 at 10:08 am
  • From Mike Geary on Blue, blue type2, turquoise, *sapphire*, *teal*,…. and so much more ….

    Most interesting article I have read in a long time. I did initially find use of the terms type1 and type2 rather confusing because, in my historical reading experience, those terms applied to linked genes rather than to alleles. However, the meaning in this context was explained in due course and my confusion was eliminated.

    2019/06/16 at 3:39 am
  • From Hani on Blackface budgerigar

    Goedeavnd
    Met Hani ik heb interesse voor blackface ik vind zalf zo mooi vogels ik heb u vogels gezin in mondial ik graag staten met bijzondere vogels. Gr Hani

    2019/06/09 at 9:51 pm
  • From Lee Naidoo on On request: English translation The marbled – greywing mystery (aka quartz)

    hello Dirk..
    I am lee naidoo.. a mutation breeder for the last 45 years.. I specialise in alexandrine mutations and I also have a few indian ringneck mutations..
    I have one alexandrine phenotype that matches what I believe to be the marble mutation .. can we discuss this..

    2019/06/06 at 10:35 am
  • From Frantisek Valasek on FAQ: Where are we with regards to the opaline mutation in Agapornis eye-ring species?

    Hello, this year 2019 in my nest A Fischeri both parents D Turquoise, born young with blue rump, white slightfeathers, white tail feathers and fully turquoise belly and cloaca. Looks identical as to the LVB Compendium page 385, just has turquoise belly. I think it is interesting new DEC D turquoise. Picture is on my Pinterest name AGOŠI.

    2019/06/04 at 2:42 pm
  • From Dirk Van den Abeele on FAQ: phaeomelanine in cinnamon

    Je kan deze inderdaad zien, zelfs de foto’s.
    op de MUTAVIsite: http://www.mutavi.info/index.php?art=pigment

    2019/06/02 at 9:50 pm
  • From eric gennissen on FAQ: phaeomelanine in cinnamon

    Mag ik onderzoeken zien of is het weer van de grote hoop getrokken . Kun een leuk verhaal opsommen maar kom eens met bewijzen dat Phaeomelanine niet voor komt in parkiet achtige dan laat ik ook wat testen zien dat u de plank mis slaat .

    2019/06/02 at 9:45 pm
  • From Dirk Van den Abeele on FAQ: split opaline in Agapornis fischeri

    I can understand the idea behind this, we have the same in orangeface mutation in Agapornis roseicollis. And this is not limited to bird mutations, also in other species we observe this.
    But even then, breeders/ scientist will consider it als recessive because the difference between both phenotypes is almost zero.
    I will give you this quote that genetisist often use:
    “The relationship of genotype to phenotype is rarely as simple as the recessive and dominant patterns described by Mendel” Maybe something to think about??

    2019/06/01 at 10:16 am
  • From Hugo Rocha on FAQ: split opaline in Agapornis fischeri

    Mas se há alteração no fenótipo dos heterozigóticos relativamente a ambos os homozigóticos (tanto do tipo-selvagem como opalinos), você acha mesmo que é recessiva em vez de ser dominante incompleta? É que neste caso o fenótipo dos heterozigóticos não se encontra mascarado como nas características recessivas. Você próprio afirmou que as penas das rectrizes contêm diferenças. Logo aí o fenótipo é diferente… Mesmo que a diferença seja mínima, como é, relativamente ao tipo-selvagem, isso significa que há sobre-dominância do alelo com a informação do tipo-selvagem relativamente ao alelo com a informação opalino. Mas não deixa de ser dominância incompleta.
    Quanto ao segundo parágrafo da sua resposta, não entendi o que você quis dizer. É que geneticamente existem mesmo os termos homozigótico, heterozigótico e HEMIZIGÓTICO…

    2019/06/01 at 9:54 am
  • From Dirk Van den Abeele on FAQ: split opaline in Agapornis fischeri

    I will quote you the definition of recessive mutations:
    Recessive mutations lead to a loss of function, which is masked if a normal copy of the gene is present. For the mutant phenotype to occur, both alleles must carry the mutation. Dominant mutations lead to a mutant phenotype in the presence of a normal copy of the gene.

    Maybe that is the reason why they consider opaline as a SEX-LINKED recessive inheritance (everybody knows that in bird males have two sex (Z) chromosomes and a female a Z and a W Chromosome) and we have terms as homozygote, heterozygote and HEMIZYGOTE?

    2019/06/01 at 9:34 am
  • From Hugo Rocha on FAQ: split opaline in Agapornis fischeri

    Tendo em conta que o opalino é uma característica de um locus do cromossoma Z: nos Agapornis roseicolis o fenótipo é alterado nos heterozigóticos relativamente aos homozigóticos (tanto dos que têm os alelos do tipo-selvagem como dos que têm os alelos opalino), sendo que a fêmea hemizigótica tem o fenótipo igual aos opalinos homozigóticos, então a herança genética desta característica não pode ser classificada de recessiva mas sim de dominante incompleta. Assim sendo, a aplicação do termo “split” deixa de ter qualquer sentido, pois não se trata de uma mutação recessiva.

    2019/06/01 at 9:14 am
  • From S. Adam on SL dominant greywing mutation in Agapornis fischeri???

    A mutation with same phenotype and inheritance is found in the Indian ringneck. It’s called SL dom. Edged. DF Male looks nearly like a visual female which is only carrying one mutated gene do to the lack of the second Z-chromoosme. SF Male is in the middle between DF and wildtype.

    SL dom. Edged would be a good name description because of it’s Melanine reducing behaviour.

    2019/05/18 at 9:18 am
  • From Dirk Van den Abeele on SL dominant greywing mutation in Agapornis fischeri???

    Thanks, we know. It can be a type of edged, but also SL Dom greywing, that depends on what happens during the biosynthetic pathway of the eumelanin.
    The best way to find out is to examine and to compare the feathers of A. fischeri, ringnecks and lineolated parakeet. But for the moment we have no budget or time for it.
    Thanks for your comment!

    2019/05/18 at 8:38 am
  • From mark on Parblue mutations - PPR partial psittacine reduction

    How to easily distinguished parblue? Is it from color?

    2019/05/17 at 9:05 am
  • From Nick on Inheritance *dominant yellow* Agapornis fischeri

    Great job Dirk. You did it again!!
    Thank you very much for your great work

    2019/05/13 at 9:23 pm
  • From Kashif on Parblue mutations - PPR partial psittacine reduction

    Dear, how can or which combination produce partly. Plz advise. Thnx

    2019/04/23 at 7:23 pm
  • From Christoper Perit on Parblue mutations - PPR partial psittacine reduction

    Good day sir. What will be the offspring if I paied a blue split opa fischer to a albino fischer?

    2019/04/22 at 4:18 pm
  • From Roger on 20 years of international names for Psittaciformes

    I do not agree Dirk 🙂
    I believe we all have to stand behind this naming system. Why? Easy there is no alternative! It is a perfect system.
    The ego’s that are against it, are the ones that have been fired in several societies, so at the end they started their own society (business???). They are against the international naming system, but they give no single alternative. It is easy to be against something, specially if you only have to criticize. I just wonder if they have enough knowledge to understand it. 🙂 🙂

    2019/04/20 at 4:37 pm
  • From Dirk Van den Abeele on 20 years of international names for Psittaciformes

    Thank you Jim,
    We developed a system that can be used in aviculture to name colour mutations. Important: I was not the only one, there were a lot of people involved. It is also not new, it already started 20 years ago.

    Please don’t be too hard on those who have a different point of view. Sometimes they only need more time or they don’t feel the need to change. Even the Buddha adviced not to believe anything you see, read, or hear from others, but find out for yourself. So we respect other opinions. At the end we are all working for the benefits of aviculture and it are the breeders who decide what names they will use.

    2019/04/14 at 7:54 pm
  • From Jim H on 20 years of international names for Psittaciformes

    Dear Dirk,

    Look how much you’ve accomplished the last decade! You really changed our hobby in a positive way.
    Somebody with a common sense understands that this is absolutely necessary if we want this hobby to survive and somebody with basic knowledge on genetics and pigmentation knows that this is a great system based on science. Till now there is no alternative.
    Who claims the opposite is just jealous of your great work!

    2019/04/14 at 7:06 pm
  • From Cees on 20 Jaar internationale benamingen bij Psittaciformes

    Ja als grote smurf nu zeker niet de slimste is en de andere smurfen het al helemaal niet weten, dan zal grote smurf er alles zal aan doen omdat zijn smurfen zeker niet zullen te weten komen dat wat hij vertelt eigenlijk larie is. Ondertussen wordt de menigte dom gehouden en sterft het smurfenvolkje uit.

    2019/04/14 at 12:14 pm
  • From Josep Vicent Devis Fontestad on 20 years of international names for Psittaciformes

    Me gusta mucho el paso adelante que se dio pero ahora se deberia de dar a explicar como diferenciar dichas mutaciones me refiero a explicar de alguna manera por ejemplo diferencia y como ver en el ave una mutacion

    2019/04/14 at 10:53 am
  • From Hans Kater on 20 years of international names for Psittaciformes

    It is still common that a lot of people use name Yellow face for turquoise. And in the world of big parakeets rubino for opaline-lutino. Crimson rosella: silver for a cinnamon pastel blue, etc. Some people never learn, are big headed.

    2019/04/14 at 9:45 am
  • From Patrick G on 20 Jaar internationale benamingen bij Psittaciformes

    Het is moeilijk te begrijpen waarom sommigen steeds tegen vernieuwing/verandering zijn. Hier nam/neemt het soms hallucinante vormen aan.
    De laatste 20 jaar hebben jullie kosten nog moeite gespaard om ons de kleurmutanten beter te laten kennen en begrijpen, belangeloos en zonder enig commercieel belang en toch zijn er ezels (sorry zo noem ik ze) die het altijd beter weten en eigenlijk enkel en alleen hun ego willen strelen.
    Recent nog met zo een ezel gesproken. Ze blijven hangen bij verouderde namen voor goulds, snappen er eigelijk geen barst van, maar blijven volharden in de boosheid. Waarom zou je je afvragen, maar eigenlijk is het antwoord simpel: ze kennen het niet en kunnen bijgevolg niets bijsturen.
    Ik vraag me af waarom je nog steeds wil blijven verdersleuren aan een dood paard. Als ik je een goede raad mag geven: laat ze lopen en focus op organisaties die wel je kennis en kunde waarderen. Steeds welkom 🙂

    2019/04/12 at 7:52 pm
  • From Dirk Van den Abeele on Studiedag kleurmutanten / vederstructuur / pigmenten

    Beste Patrick, het is niet dat je er niet bij mocht zijn, het is feit dat er geen plaatsen meer vrij waren.
    We moesten deze activiteit beperken tot een 20 tal deelnemers, gewoon omdat er niet meer plaats is op die locatie. En geloof me, je was niet de enige die naast de boot viel. Er waren 84 aanmeldingen, de 20 beschikbare plaatsen waren dan ook binnen een paar dagen bezet. Met andere worden, dat houdt in dat er 64 mensen geweigerd werden. Je was dus niet de enige.
    We zijn op zoek naar een grotere locatie in de buurt. Dat moet deze problemen in de toekomst vermijden.

    2019/03/23 at 8:08 pm
  • From patrick on Studiedag kleurmutanten / vederstructuur / pigmenten

    Jammer dat ik er niet bij mocht zijn

    2019/03/23 at 7:58 pm
  • From pieter on Studiedag kleurmutanten / vederstructuur / pigmenten

    Een grotere locatie was aangewezen. Nu zijn er heel veel op hun honger blijven zitten ?
    Kijk uit naar de volgende keer

    2019/03/04 at 8:20 pm
  • From Muhammad yaseen on On request: Blue, aqua and turquoise mutations in Lovebirds

    Hi which lovebird to cros oplin

    2019/02/25 at 4:01 pm
  • From Wendy on Is myostatin the catalyst behind the “standard” birds?

    This is very interesting, thank you!

    2019/02/08 at 8:18 pm
  • From Adeel on Parblue mutations - PPR partial psittacine reduction

    Hi,sir how are you my question is that…..which two types lovebird breed par blue.

    2019/02/04 at 10:12 pm
  • From angelo on Ter info: BVA Masters 2019

    da uitslapen is geen probleem,kwestie ook van de vrijwilligers en keurmeesters goed hun werk laten doen ,echt een zeer goede zet.Dan zullen mensen van de BVA minder gestresst lopen ook deze keer . Laten we hier ook eens een oproep doen aan de belgen om zeker eens massaal mee te doen dit jaar .

    2019/02/01 at 8:57 pm
  • From Jeremy Pellerin on Ter info: BVA Masters 2019

    I understand the problem, but breeders Will must pay 1 day in hotel and food, it Will be hard for far breeders

    2019/02/01 at 8:19 pm
  • From Hans Kater on Ter info: BVA Masters 2019

    Dat wordt een nachtje extra slapen in Aalst

    2019/02/01 at 11:45 am
  • From Dirk Van den Abeele on Ze zijn er gelukkig nog - 2

    Only one solution: pure wildtype

    2019/01/26 at 5:37 pm
  • From Junaith on Ze zijn er gelukkig nog - 2

    How can improve the quality of agapornis fischeri

    2019/01/25 at 1:53 pm
  • From Dirk Van den Abeele on BVA International's global network of affiliated clubs and societies has a new member!

    Alvast minder trappist verkopen

    2019/01/25 at 11:10 am
  • From cees on BVA International's global network of affiliated clubs and societies has a new member!

    Vraag me wel af wat de bva zonder jou zal doen?

    2019/01/25 at 11:09 am
  • From Hans Kater on BVA International's global network of affiliated clubs and societies has a new member!

    De BVA verspreid zich als een virus, en dat is heel goed.

    2019/01/24 at 4:30 pm
  • From Harry on Vandaag ontvangen, men weze gewaarschuwd

    Van harte gefeleciteerd.

    2019/01/22 at 11:19 pm
  • From kris dierickx on Vandaag ontvangen, men weze gewaarschuwd

    Ik had graag bij deze mijn annulatieverzekering voor de volgende cursus ingeroepen.

    2019/01/22 at 9:02 pm
  • From Hans Kater on Vandaag ontvangen, men weze gewaarschuwd

    ? ? ?

    2019/01/22 at 10:59 am
  • From Edwin on Vandaag ontvangen, men weze gewaarschuwd

    Ben er redelijk gerust in ? ? ?

    2019/01/21 at 9:03 pm
  • From Dirk Van den Abeele on Vandaag ontvangen, men weze gewaarschuwd

    Kunnen niets garanderen 🙂

    2019/01/21 at 8:48 pm
  • From Lilian du Burck on Vandaag ontvangen, men weze gewaarschuwd

    Gefeliciteerd voor de ouders.
    Ik ga de cursussen allemaal volgen en dan maar hopen op een wonder he..want met 50 jaren op de teller..zal die gezinsuitbreiding geen risicofactor voor me zijn ?

    2019/01/21 at 8:38 pm
  • From Theo Heymen on Genus Forpus, een taxonomisch overzicht – deel 1

    Geweldig stuk Dirk, ik zal het met plezier lezen

    Theo

    2019/01/21 at 1:07 pm
  • From Dirk Van den Abeele on Turquoise Agapornis fischeri - un update

    Als ik met u kan samenwerken Pol dan is de rest kinderspel – LOL

    2019/01/11 at 4:39 pm
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