Discipline: Animal Science
This study was conducted to compare brooding and growing performance of different groups of Philippine Mallard ducks raised under an intensive management system. A total of 1,503 head of ducklings from five groups of Philippine Mallard ducks, namely: Cagayan Valley, Central Luzon, Southern Tagalog, Western Visayas, and Northern Mindanao were used. Significant differences (P<.05) in body weights were observed on the 8th and 20th week of age and on feed conversion efficiencies on the 16th and 20th week of age. Highly significant differences (P<.OI) in body weights were observed on the r d and 4th week of age, in weight gain on the first four weeks of age, in feed intake in the 12th up to the 20th week of age, and in feed conversion efficiencies during the first two weeks and in the 12 tb week of age. Highly significant differences were noted on overall percent livability among the five groups. Ducks from Western Visayas and Northern Mindanao groups had heavier body weights, consumed more feed, had higher percent livability, but had poorer feed conversion efficiency compared to ducks coming from Luzon areas.