DNA 性

12,00 - 12,50

100% 精度

測試周轉 : 1-3 天或快1天

樣品 : Feather, or Eggshell, or Dry blood on paper

數量Price
112,50
612,00
清楚
Sku: dna-sexing-birds 類別:
Male
Female
What is DNA sexing?

DNA sexing is nowaday the best method to determine the sex of the birds. Therefore, Genimal Biotechnologies gives the opportunity to bird breeder to determine the sex of their birds with accuracy and short delay.

物種

We can do DNA sexing on all bird species. However we cannot sexed ratites (Ostrich, Rhea, Emu) and some glossy starling.

多次發送

Order a pack of DNA sexing now and then send your samples at different times within the limit of 2 years. For example, you can send 2 samples tomorrow, 3 other in two months etc.

1 天結果

有可能在 1 天內獲得結果 快速選項

分析方法

As in humans and most animals, the sex of birds is determined by two chromosomes called “sex chromosomes”. In birds, males have two identical sex chromosomes named ZZ. However, in females, these two chromosomes are different and named ZW. Indeed, the Z chromosome is therefore present in both sexes while the W chromosome is only present in females. The method of DNA sexing realized at the laboratory Genimal Biotechnologies consists of detecting a particular gene that, although found on both chromosomes, is smaller in size on the W chromosome than on the Z.

DNA extraction

The DNA present in the sex chromosomes is isolated from the sample cells (feather cells, blood cells, etc.).

DNA multiplication

A piece of the DNA used for DNA sexing is multiplied millions of times to make it detectable.

Detection of the gene

The DNA is now detectable with a specific machine because it is present in billions of copy. In females (ZW), two bands of DNA are observed. The first band corresponds to the version of the large gene on the Z chromosome and the second band corresponds to the version of the small gene on the W chromosome. In males (ZZ), only one band is observed because both chromosomes are on the same size (Z).

樣品類型

下面是此測試接受的不同類型的示例的清單:
  • 羽毛
  • Eggshell
  • 紙上幹血

測試的證書示例: DNA 性

按一下下面的示例證書以將其打開。

證書
引用
  • DNA sexing article in Wikipedia. Read the article
  • A DNA test to sex most birds. Griffiths R, Double MC, Orr K, Dawson RJ. Mol Ecol. 1998 Aug;7(8):1071-5. Read the article
  • A simple and universal method for molecular sexing of non-ratite birds. Fridolfsson, AK, Ellegren, H. J Avian Biol 1999;30:116–121. Read the article
  • Sex identification in birds using two CHD genes. Griffiths, R. Proc Biol Sci 1996;263:1251–1256. Read the article

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