Effects of sublethal concentrations of Datura innoxia leaf on weight gain in the African catfish, Clarias gariepinus

2006 ◽  
Vol 20 (2) ◽  
Author(s):  
VO Ayuba ◽  
PC Ofojekwu
Keyword(s):  
Weight Gain ◽  
Clarias Gariepinus ◽  
African Catfish ◽  
Datura Innoxia ◽  
Sublethal Concentrations

scholarly journals Effect of feeding on fresh (wet) housefly maggots (Musca domestica) with or without artificial diet on water quality and growth rates of African catfish (Clarias gariepinus Burchell, 1822) fry under laboratory conditions

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Hamed H.E. Saleh
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Weight Gain ◽  
Growth Performance ◽  
Musca Domestica ◽  
Artificial Diet ◽  
Clarias Gariepinus ◽  
African Catfish ◽  
Survival Percentage ◽  
Effect Of Feeding

 No or little information on the use fresh (wet) housefly maggots (Musca domestica) in African catfish (Clarias gariepinus) fry feeding. Therefore, this study was conducted to investigate the effect of feeding on fresh (wet) housefly maggots with or without artificial diet on water quality, growth performance, survival percentage and feed utilization of African catfish fry under laboratory conditions. Housefly maggots produced from a mixture of poultry droppings and foods wastes, it was used to replace artificial feed at 0, 50 and 100% levels. Catfish were fed artificial diet alone (Feed 1), fresh (wet) housefly maggots alone (Feed 2), and 50% fresh housefly maggots with 50% artificial diet (Feed 3) were prepared and tested on triplicate groups of African catfish fry (initial weight of 0.25±0.02 g) for 60 days. Results showed that final weight (g/fish) was significantly highest (P£0.05) in fish fed feed 3 (6.03±0.08), followed by fish fed feed 2 (4.62±0.27), followed by fish fed feed 1 (3.15±0.68). Specific growth rate (%/day) was also significantly highest in fish fed feed 3 (5.31±0.10), followed by fish fed feed 2 (4.86±0.03), followed by fish fed feed 1 (4.18±0.24). The same trend was observed with total weight gain, percentage weight gain, daily growth rate and relative growth rate. Feed intake and protein intake were significantly highest (P£0.05) in fish fed feed 3 and fish fed feed 2, followed by fish fed feed 1. While, feed conversion ratio (FCR) and protein efficiency ratio were not significantly (P>0.05), but the improvement in FCR recorded in catfish fry fed feed 3 and feed 2 under the experimental conditions. Survival percentage was within the range 55–75%, with insignificant differences (P>0.05) among treatments. The water quality parameters such as temperature, pH, dissolved oxygen, total ammonia, nitrite and nitrate were not significantly (P>0.05) among the treatments and were tolerable for fish culture. Accordingly, use of the 50% fresh (wet) housefly maggots with 50% artificial diet in African catfish fry feeding had positive effect on growth performance and reduce of the feed cost.

The Effect of Sublethal Concentrations of Paraquat on the Tissue Aminotransferases of the African Catfish: Clarias gariepinus

2007 ◽  
Vol 1 (2) ◽  
pp. 98-101 ◽  
Author(s):  
Kori-Siakpere . ◽  
Ovie . ◽  
Adamu . ◽  
Kabir Mohammed and Salubi . ◽  
Oghenevware .
Keyword(s):  
Clarias Gariepinus ◽  
African Catfish ◽  
Sublethal Concentrations

Body weight changes, nutrient utilization and intestinal microflora of African catfish (Clarias gariepinus) fed Aloe barbadensis leaves

2021 ◽  
Vol 43 (1) ◽  
pp. 385-398
Author(s):  
S. I. Ajibola ◽  
S. O. Obasa ◽  
A. K. Akintokun ◽  
I. Abdulraheem
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Intestinal Microflora ◽  
Control Diet ◽  
Clarias Gariepinus ◽  
Nutrient Utilization ◽  
Fish Growth ◽  
African Catfish ◽  
Weight Changes ◽  
Aloe Barbadensis

Immuno-nutrition studies have shown that some nutrients are linked to the immunological status of fish. Growth performance, nutrient utilization and intestinal microflora were examined in Clarias gariepinus. The 120 C. gariepimus fingerlings (weight, 2.33±0.07g)were fed Aloe barbadensis leaves-paste supplemented diets in 40L freshwater-filled plastic tanks ad libitum twice daily for 12 weeks. The experimental diets containing 40% crude protein were supplemented with three concentration of A. barbadensis leaves-paste: ABL1-1%; ABL2-2%; ABL3-3% and control-0%. Mean weight gain (MWG) and percentage weight gain (PWG) increased (p<0.05) as the concentration of A. barbadensis increased. MWG (17.95±0.78) and PWG (772.2±54.94) were highest in fish fed ABL3 and lowest MWG (11.92±1.16) and PWG (17.95±0.78) in fish fed control diet. Nutrients were better utilized among the diets supplemented group at different significant levels (p < 0.05). The highest value of ANPU was observed in ABL1 when compared to all other treatments including the control. Survival rate decreased as concentration of paste increased. There were no significant differences (p>0.05) in the total bacterial counts (TBC) in A. barbadensis leaves-paste supplemented diets and the control having the highest TBC (23.67 ±0.88 x 105 CFU/ml). Growth of total fungal counts (TFC) was not observed in ABLI. There was a reduction in TFC as the concentration increased in the other supplemented diets, and the control having the highest TFC (7.67 ± 0.44 x 105CFU/ml). The study concluded that inclusion of 1% A. barbadensis leaves-paste as supplement in the diet could effectively improve the growth performance, nutrient utilization and survival of cultured C. gariepinus. A. barbadensis leaves-paste could also reduce the microbial load of the fish.

Response of the african catfish Clarias gariepinus, Burchell 1822 to diets of comercially and locally formulated fish feed in relation to cost benefits

2018 ◽  
Vol 26 (1) ◽  
pp. 87-99
Author(s):  
J.R. Solomon ◽  
I.A. Abawale
Keyword(s):  
Weight Gain ◽  
Crude Protein ◽  
Fish Meal ◽  
Clarias Gariepinus ◽  
Soya Bean ◽  
Daily Weight Gain ◽  
African Catfish ◽  
Fish Feed ◽  
Bean Meal ◽  
Soya Bean Meal

The growth performance of catfish Clarias gariepinus using imported feeds and locally made feeds of the same crude protein were compared. C. gariepinus (mean weight 12.8g) juvenile were reared in cages for a period of 12 weeks on different feed. Two imported feeds (skretting and copens) were purchased and two local feeds (corresponding to treatment) were compounded to contain the same level of crude protein. Locally ingredients used are maize, fish meal, groundnut cake, soya bean meal, bone meal, lysine, methionine, premix, vegetable oil, salt but varying fish meal and soya bean meal as follows, treatment 1- (11.38% to 7.5%), treatment 2-(7.5% to 11.38%) respectively. The pelleted feeds were fed at the rate of 5% of the fish biomass. The growth response was assessed in terms of daily weight gain, relative weight gain, specific growth rate, feed conversion ratio, mortality and survival rate. The results showed that the two local feeds promoted positive growth, implying that the use of different levels fish meal and soya bean meal (11.38% and 7.5%) favoured culture of juvenile C. gariepinus.Key Words, Clarias gariepinus, diet, fish feed, formulation, growth

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