Impacts of Feeding Restriction Regimes on Economic and Productive Performance of Nile Tilapia Fish | ||||
Journal of Current Veterinary Research | ||||
Article 6, Volume 2, Issue 2, October 2020, Page 48-54 PDF (234.01 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/jcvr.2020.121514 | ||||
View on SCiNiTO | ||||
Author | ||||
Ibrahim Mostafa Elkafrawy | ||||
dept. of psychological sciences, university of sadat city | ||||
Abstract | ||||
This study investigated the effect of feeding restriction regimes on economic and productive performance of Nile tilapia Oreochromis niloticus. Sixty Nile tilapia fish were randomly classified into three groups (n=10/group) with similar initial body weight. Group I (Control group) was fed three times daily for 32 days. Group II was deprived for 4 days and then re-fed for 16 days, while Group III was deprived for 8 days and then re-fed for 32 days. The experiment was terminated after 10 weeks. All groups were fed on commercial diet at 2% of body mass. Indicate parameters measured were weight gain, feed efficiency, feed conversion ratio, economic conversion ratio and water quality. The above parameters were measured every 2 weeks. The results revealed that, after 64 days, Fishes which exposed to long starvation periods (8F:32R) consumed significantly (P= .01) more feed compared to other the restricted group (4F:16R). The highest feed efficiency was observed in fish exposed to 4F:16R. However, this group showed less feed intake than the 8F:32R and control groups. Moreover, cost benefit analysis under restriction indicated that, the highest return observed in control group and restricted fish for 4 days and the lowest in restricted fish for 8 days (P= .05). On the other hand, parameters of water quality (pH, Dissolved oxygen, Turbidity and Ammonia) were significantly (P= .01) affected by feed restriction regimes. Turbidity and ammonia levels were more in control group than the restricted groups. | ||||
Keywords | ||||
Cost-benefit analysis; Economic and productive performance; Nile tilapia fish | ||||
Statistics Article View: 153 PDF Download: 287 |
||||