Abstract
The study was aimed to draw a comparison between the production and proft of duck eggs in the multi-age duck farming in brackishwater ponds. Multi-age is defined as layer ducks in two or three age group (level 2 or 3) that is farmed collectively in one cage. Evaluative method was applied to 110 ducks in each level. The ducks in level 2 consist of two age groups: 6-14 and 15-23/24 months, 36 ducks each. Level 3 has three age groups: 6-11, 12-17 and 18- 23/24 months containing 36, 38 and 36 ducks, respectively. Each level was contained in a 20m2 cage in the same pond with a 100m gap between cages. The ducks are allowed a natural environment to freely swim in the pond and rest in the cage. The ducks are kept for four months. The t test statistics was used to compare the production and profit of duck eggs in level 2 and 3. The result showed a non-signficant difference in egg production betweel level 2 and 3 (p 0.05) was identified where level 2 gave a higher profit by IDR 308,000 (USD 21,63) than level 3. Based on the comparison in egg production and profit, it is concluded that the multi-age duck farming level 2 and 3 deserves perpetuation or development
Highlights
Farming ducks in brackishwater pond is one of the integrated fish-based farming systems/aquatic farming (Latifa and Rini, 2014; Munjunatha, 2014; Renie and Budi, 2015; Madry et al, 2016)
Level 2 includes age groups [6,7,8,9,10,11,12,13,14] months and 15-23/24 months, and level 3 includes [6,7,8,9,10,11, 12-17] and 18-23/24 months. The drawback of this multi-age system is the difficulty to tell production stage I from stage II that are physiologically connected to the level of egg production
The ducks were freely swimming in the pond and resting around the cages to be exposed to the natural environment
Summary
Farming ducks in brackishwater pond is one of the integrated fish-based farming systems/aquatic farming (Latifa and Rini, 2014; Munjunatha, 2014; Renie and Budi, 2015; Madry et al, 2016). In this system, fish is the main product and the ducks are the byproduct. The ducks undergo production stage II with as low as 40% egg yield (Purba et al, 2005; Palmer, 2007; Margono, 2015); deemed inefficient to maintain. This study aims to compare the level of egg production and profit between the multi-age brackishwater-farmed ducks in level 2 and level 3. The result of the study is expected to provide additional information for further study and for the farmers to evaluate the long-existing multi-age duck farming system
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