Management system and dietary level treatments on the growth performance of indigenous Mallard ducks (Anas platyrhynchos) [Philippines]
1987
Lambio, A.L. | Arboleda, C.R. | Luis, E.S. | Vera Cruz, M.C.B. | Karnuah, A.B.
A total of 210 indigenous Mallard ducks was used in a 2 x 3 factorial experiment involving two management systems (intensive, extensive) and three diets (18% CP [crude protein], 16% CP, 14% CP). From day-old up to four weeks of age, the ducklings were raised separately according to sex on elevated battery brooding pans and given commercial broiler starter mash. After four weeks of age, 90 ducklings of equal sexes were randomly distributed into three dietary treatment groups with three replications each. The duckling were raised in confinement in growing pens measuring 250 cm x 180 cm each (intensive). Likewise, 120 ducklings of equal sexes were randomly assigned to six farmer-cooperators in an irrigated rice-based farming system in Masiit, Calauan, Laguna [Philippines]. Two replicates with 20 ducklings per replicate (farmer-cooperator) were assigned per dietary treatment. The ducklings were allowed to roam fully in search for feed during the day. The treatment diet were given in the afternoon as supplement to whatever feed they have acquired. No significant system x diet interactions were observed on body weight feed consumption and feed efficiency at 6, 8, 10 and 12 weeks of age. At 6, 8 and 10 weeks of age higher (P 0.05) body weight of ducklings raised under intensive systems. At 12 weeks however, the difference in body weight between systems was found to be nonsignificant. Higher (P 0.05) feed consumption was observed from ducks raised under intensive system throughout the experimental period. Better (P 0.05) feed efficiency was noted on ducklings raised under extensive system of management except on the sixth week.
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