Adaptive habituation and assessing the feeding effect on growth performance and body composition of an aquarium fish red swordtail, Xiphophorus hellerii (Heckel, 1848) in Bangladesh | ||
| Egyptian Journal of Aquatic Biology and Fisheries | ||
| Article 60, Volume 26, Issue 4, July and August 2022, Pages 1023-1037 PDF (532.93 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejabf.2022.256018 | ||
| Author | ||
| Rakiba Sultana et al. | ||
| Abstract | ||
| The Red Swordtail Xiphophorus hellerii, a globally popular ornamental fish, gains an increasing interest in Bangladesh due to its attractive color and its recent high commercial value. However, available information on habituation, feed acceptance, and effects of feeding on growth and body composition are scanty in Bangladesh. This experiment aimed at assessing feeding effects on the growth performance, adaptive habituation efficiencies, and whole-body carcass composition of X. hellerii in laboratory conditions. Fish fries (n=20) were fed with three different diets explicitly T1-formulated diet, T2-mega feed, and T3-fast red feed, for 100 days in 9 uniform individual glass aquaria (capacity:105-litre, size:24×12×12 inches3). The water quality parameters did not significantly vary (P>0.05) among the treatments and were within the suitable limits for fish culture. In the end, significantly higher (P<0.05) final weight (2.05±0.100g), weight gain (2.00±0.107g), percent weight gain (4013.33±2140%), average daily weight gain (0.02±0.001 g/day), and survival rate (86.67±3%) were recorded in fish fed T3 diet, compared to T1 and T2 diets. Significantly better nutrient utilization, viz. protein efficiency ratio (0.12±0.005) and lowest feed conversion ratio (1.21±0.020) were also recorded in fish fed T3 diet. Analysis of X. hellerii whole-body carcass composition reveals that significantly higher (P<0.05) lipid (4.24±0.08%) and protein (15.078±0.55%) contents were recorded in fish fed T1 diet compared to those fed T3 and T2 diets. Despite the lower growth performance, the carcass composition of fishes was higher in T1 than that in T2 and T3. The higher lipid and protein content in fishes of the T1 group reflected that the fishes fed with formulated feed well habituated over T3 fed on fast red feed and T2 fed on mega feed. | ||
| Keywords | ||
| Red swordtail; Feed; Growth performance; Proximate composition; Aquarium | ||
|
Statistics Article View: 273 PDF Download: 513 |
||
