Resting Systems During Spawning Season; A Determinant Factor Inthe Production of Ecotype Cichlid Wasefu

Özet

The study evaluated the production rate of wasefu tilapia paired for spawning and rested in two different receptacles of hapa and earthen pond. The resting period was 12 days after each production cycle. Hapa was placed in an earthen pond of (7 x 1.5 x 4) m in a (1 x 1 x 1) m. A pairing of 3:1 was grouped into (A) production of larvae without rest (this served as a control), (B) spawning broodstock that was rested in hapa for 12 days, and (C) spawning broodstock that was rested in Earthen Pond in triplicates. A total of 120 broodstock were selected and stocked in the hapa consisting of 90 females and 30 males gravid broodstock of (110-188) g for the male and female at a range of (110-145) g in the hapa that was hung in the earthen pond mate and produced swim-up fries continually for control experimental units and rested in hapa and earthen pond for the B and C. Rested broodstock in the earthen pond produced a considerable number of fry compared to the ones rested in the hapa. In contrast, the unit that was not rested during the study period produced the lowest number of fry.