Phenotypic characterization and diversity analysis of traditional chickens (Gallus gallus domesticus L.) in Western Visayas, Philippines
2011
Cabarles, J.C. Jr.
Traditional chickens are chickens which lack comprehensive information about their breeds. Thus, this study was conducted to phenotypically characterize and analyze their diversity in Western Visayas. Purposive sampling was done to survey 270 raisers and characterized 810 chickens. These numbers were equally divided in provinces of Aklan, Antique, Capiz, Guimaras, Iloilo, and Negros Occidental. Data collected were analyzed using descriptive statistics, multivariate analysis, and non-parametric test. Results showed that roosters having red plumage with various shades of laced color pattern, red earlobes, and yellow shank; and, hens having brown plumage with black pencilling color pattern, red with white earlobes, and slate shank were dominant in the region. Raisers observed that these chickens had tolerance to warmer environment, low feed quality, limited supplemental feeds, and parasites but prone to colder environment and occurrences of NCD and CRD. Chickens in Capiz had highest (P0.05) clutch size; Antique had longest (P0.05) clutch interval and consistently highest (P0.01) in survival rate; Aklan had highest (P0.05) hatching percentage; Guimaras had heaviest (P0.01) egg, one-day old, slaughter, and adult liveweight; Iloilo had highest (P0.01) yolk and albumen ratio and heaviest (P0.01) body weight at eight and twelve weeks old; and Negros Occidental had youngest (P0.01) slaughter age. Chickens raised in backyard production systems had higher (P0.05) migration rate and lower (P0.05) genetic differentiation. Positive correlation (r
显示更多 [+] 显示较少 [-]