list one name each of Exotic and Indian breed of poultry . what is the purpose of their crossbreeding. ( give me the proper answer)
Answers
Indian-Asell
Exotic-Leghorn
Explanation:
cross breeding is very important to overcome inbreeding depression..It also introduces new variety of breeds who are more capable of producing good quality products for human welfare with High nutrition and meats
Indigenous/native breeds of chickens are playing an important role in rural economies in most of the developing and underdeveloped countries. They play a major role for the rural poor and marginalised section of the people with respect to their subsidiary income and also provide them with nutritious chicken egg and meat for their own consumption. Performance of native fowl can be improved by change in husbandry, feeding, and better health cover. However, genetic improvement may be made either through selection and crossbreeding or by utilisation of both selection and crossbreeding. Improvement through selection may be time consuming but the improvement will be permanent. Through crossbreeding improvement may be faster but research has to aim for the production of native-type birds with higher production potential. In the present review efforts have been made to present the importance of native fowl to rural economy and their improvement for higher production performance.
1. Introduction
Rural poultry farming using native breeds is being practised in many developing and underdeveloped countries throughout the world.Importance of native birds for rural economy is immense in different countries . Though these birds are being used for rural backyard poultry production, their genetic potential has not been fully exploited. Improvements of native breeds through selection are being carried out, but still it has to be given more importance in different countries of the world .Backyard farming has over the years contributed to a great extent to the agrarian economy of different countries. In the same way, rural backyard poultry production plays a vital role in the rapidly growing economy. It provides livelihood security to the family in addition to securing the availability of food. Unemployed youth and women can also earn an income through poultry farming. Indigenous breeds are well known for their tropical adaptability and disease resistance, while their plumage colour helps in protecting themselves against predators. The first priority of today’s rural poultry farmer is not only having birds which lay just more eggs but also having birds which lay eggs with an optimum size as well as birds which grow to an optimum body weight with plumage colour similar to indigenous birds. Producers thus have a choice out of a number of native breeds. The present review was made to document the importance of indigenous chicken for rural economy and its upgradation/improvement with respect to performance.
2. Indigenous/Native Breeds of Chickens
Chickens are the most popular poultry worldwide irrespective of culture and region [11, 12]. Dessie et al. [11] reviewed the current state of knowledge on indigenous chicken genetic resources of the topics: domestication, distribution, and documentation of information on the genetic resources. Aini [13] reported the number of indigenous chickens in South East Asia. In India some of the important breeds/varieties which have been documented are Aseel, Ankaleshwar, Busra Chitagong, Daothigir, Denki, Ghagus, Haringhatta black, Kadaknath, Kalasthi, Kashmir Faverolla, Miri, Punjab Brown, Tellichery, Titri, Teni, Nicobari, Naked neck, and frizzle fowl [14, .Besides this many nondescript desi chickens breeds are reported As per the report of Ramdas and Ghotge there are approximately eight different strains or substrains of native chickens that are recognised by the communities of East Godavari district of Andhra Pradesh areas such as Nati Kodi, Shankarjati kodi, Geesa kodi, Medajari Kodi, Rencha kodi, or Agees kodi, and Mattedu kodi. Among these it is the Aseel that has been historically the breed of choice valued for its tasty meat, cockfighting abilities, agility, and ability to escape from predators.