Recessive genes require one copy of the gene to be passed down from each parent to the offspring so the offspring has two copies. Recessive genes are inherited the same way regardless of the sex of the bird. The male bird must receive one copy of the gene from each of his parents. Male birds pass on one copy of their sex-linked genes to both their male and female offspring. Female birds require only one copy of a sex-linked gene to visually show the mutation in their coloring.
It all started with the Normal wild type cockatiel. At the time of this writing we currently have fourteen 14 known mutations in the US. Of these mutations, six 6 were established in the US. All cockatiels, excluding the normal grey, are mutations. A mutation is defined as a spontaneous change in the genetic code.
To improve your flock all you need is a basic knowledge and a little insight and once you have read this article a few times you will find it comes to hand pretty quickly! I n genetics there are basically 3 types you need to understand with 2 of them common, to be able to confidently predict pairing outcomes and these types are as follow:. Gene 1 - The Sex Linked Gene.
Cockatiel types are mutations of cockatiels. These might accidentally occur during the breeding process. Sometimes these mutations are domesticated also, by cockatiel breeders for their own requirements. Although, Cockatiel types have different cockatiel colors for their diversification.