Recent trends in the improvement, utilization and conservation of native chickens
1999
Lambio, A.L.
This paper reviews published reports on the improvement, utilization and conservation of native chickens both here and abroad. Particular emphasis is given on native chickens in Southeast Asia and selected countries in Asia and Africa. The current status of native chicken production, their economic importance and constraints/limitations in producing them are likewise discussed. Attempts to improve these native stocks through the application of selection and breeding systems are likewise reviewed. In many developing countries, it appeared that the predominant breeding system used is upgrading using exotic stocks such as the New Hampshire, Rhode Island Red, Barred Plymouth Rock and White Leghorn resulting to stocks which shows wide variations in their qualitative and quantitative characteristics. They are however preferred to be raised by certain farmers because of quality attributes such as flavor, leanness, pigmentation, medicinal properties and their ability to live and reproduce even under harsh environmental conditions. Renewed interest in their utilization and propagation is being undertaken by both the government and private sectors. Efforts are likewise being made on the development of techniques towards their germplasm conservation through establishment of gene pools and through semen cryopreservation
显示更多 [+] 显示较少 [-]