Bekisar
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The Bekisar or Ayam Bekisar is a hybrid of the pairing of the fork-tailed chicken and the first-generation domestic chicken . The roosters are known for their unusually long crow call and for their bright and striking plumage colors.
Hybridization
According to tradition, the crossing of fork-tailed chickens and bankiva chickens was first carried out on islands in the Java Sea . The result of this crossbreeding is mostly an infertile animal. Since the eggs of the hens are always sterile, backcrosses with the domestic chicken could only be achieved via roosters. Because of the practical problems involved in crossing experiments, artificial insemination is currently also being used.
use
Bekisars are traditionally used as "living fog horns" on Indonesian boats. Since the crow's cry can be heard over many kilometers, the ship's crew were able to locate each other even when visibility was poor. Bekisars are also bred to take part in competition crows . For this purpose, the cocks are pulled up in cages.
distribution
As a result of the migration of peoples from the Sunda Islands in the Pacific , Bekisars have been released on the Pacific Islands and, through natural backcrossing with land chickens, have enabled the formation of unique breeds. The common theory that Araucana chickens from South America, which like Bekisars and fork-tailed chickens lay green-blue eggs, are descended from Bekisars, has not been confirmed in molecular genetic studies.
Individual evidence
- ↑ Grouw, Hein van & Dekkers, Wim (2019). Various Gallus varius hybrids: variation in junglefowl and Darwin's interest in them. Bulletin of the British Ornithologists' Club (London) , 139 (4), 355-371. doi : 10.25226 / bboc.v139i4.2019.a9
- ↑ Tri Yuwono: The effect of Using Semen Diluter to Egg Fertility and Hatchability on Artificial Insemination to Produce Bekisar chicken (Crossbreed) Mentor, 2005, (Dissertation), University of Diponegoro
- ↑ Firda Arlina: A Review of "Long Crower Chickens" as Poultry Genetic Resources in Indonesia, International Journal of Poultry Science, 2014, p. 665
- ↑ Christine Heinrichs en Kermit Blackwood: Breed focus - Rapanui fowl, avicultura-europe pdf , accessed on November 21, 2015.
- ↑ Jaime Gongora et al .: Indo-European and Asian origins for Chilean and Pacific chickens revealed by mtDNA. Proceedings of the National Academy of Sciences, 2008, pp. 10308-10313.