Growth and Feed utilization of Catfish Hybrid (Heterobranchus longifilis x Clarias gariepinus ) Fingerlings fed practical diets

Abstract

The effects of four practical diets (3 commercial and one locally prepared) on growth, feed utilization and survival of catfish hybrid (Heterobranchus longifilis x Clarias gariepinus ) fingerlings were compared in plastic aquaria in triplicates for 56days. Diets differed in crude protein (CP) and digestible energy as follows: Commercial Diet 1 (39.73% CP, 3911.8Kcal/kg), Diet 2 (34.50% CP, 3926.8Kcal/kg), Diet 3 (45.37%, 3883.6Kcal/kg) and local Diet 4 (40.34% CP, 3861.8Kcal/kg). Observations made indicated higher performance in weight and percent weight gain (2.299g, 411%), specific growth rate (0.78% day -1 ), condition factor (0.96), feed conversion ratio (2.67) and protein efficiency ratio (10.73) for fingerlings fed Diet 3 than other diets. Commercial Diet 2 appeared to perform least among the test diets. Fish survival was high and varied between 76.7% (Diet 4) and 96.7% (Diet 1). These results demonstrated that catfish hybrid fingerlings can be successfully reared in aquaria with good feed conversion, growth and high survival on commercially or locally prepared diets with 45.37% CP and adequate energy.

Effect of three commercial feeds on the growth performance of Hybrid Catfish (Heteroclarias) juveniles

“…Ayinla (2007) reported that catfishes require at least 40% crude protein for normal growth, the crude protein in these commercial feeds were above this recommended value. The difference in the mean weight gain of fish fed the 3 commercial feeds could also be due the difference in the level of crude protein which was higher in commercial feed A, followed by feed B and then feed C. This observation is in agreement with the finding of Raimi et al (2018) rates between this work and other studies could be as a result of different culture conditions (Keremah et al, 2013).…”

“…The values for the Specific Growth Rate (SGR) in this study was lower than the values reported bySolomon et al (2013) when The survival rate recorded was close to the 75-80% reported byOtchoumou et al (2012) for Heterobranchus longifilis fingerlings. However, it was lower than the values documented byKeremah et al (2013) for Heteroclarias fingerlings. The difference in survival…”

“…Jamabo and Dienye (2017) Catfish species are critical to the development of aquaculture in Nigeria (Owodeinde and Ndimele, 2011). Interest in the Heteroclarias species has increased in Nigeria and it is obtained by crossing Heterobranchus (male) and Clarias gariepinusfemale (Keremah et al, 2013). This hybrid combines the fast growth, ability to tolerate poor water quality conditions and hardiness of Clarias with the large size of Heterobranchus species.…”

SAND CRAB (Emerita sp.) MEAL AS A NOVEL FEED INGREDIENT FOR KOI CARP (Cyprinus carpio)

“…The most effective dose for promoting growth in mice was found to be a 25% concentration in the diet (Kardaya et al, 2011). Similar to this report, another marine crab Chaceon affinis is reported to be able to replace other protein sources in catfish feed (Keremah, 2013), and added up to 15% in shrimp feed can improve growth, feed conversion and protein efficiency of L. vannnamei juveniles (Goytortúa-Bores et al, 2006). In others Sand crab (Emerita sp.)…”

Growth Response and Haematological Indices of Hybrid Catfish Fingerlings Fed Varying Inclusion Levels of Fermented Sword Bean (Canavalia Gladiata) Seed Meal in a Concrete Tank

“…In this study, there was no feed rejection of any experimental diet during the feeding trial period, however the total feed intake, acceptability and utilization of the diets varies significantly among the treatment. Source and inclusion level of alternative ingredients especially plant protein-based ingredient in aquafeed production directly affects the palatability, acceptability and digestibility thereby having a significant impact on the growth performance and nutrient utilization of the fed fish ( Keremah et al, 2013). Weight gain and specific growth rate are usually considered as one of the most important measurement of productivity of diets (Omitoyin and Faturoti, 2000).…”