scholarly journals Determination of the quality parameters of African catfish (Clarias gariepinus) finger during refrigerated storage

2017 ◽  
Vol 34 (4) ◽  
pp. 369-373
Author(s):  
Beyza Ersoy Altun ◽  
Figen Kaba Güngör
Keyword(s):  
Clarias Gariepinus ◽  
Quality Parameters ◽  
African Catfish ◽  
Refrigerated Storage

Determination of a predictive growth model for cultivated African catfish Clarias gariepinus (Burchell, 1882)

2021 ◽  
Author(s):  
Babatunde Olaseni Musa ◽  
Alvaro Hernández‐Flores ◽  
Oludare Akanni Adeogun ◽  
Adekunle Oresegun
Keyword(s):  
Growth Model ◽  
Clarias Gariepinus ◽  
African Catfish

scholarly journals Comparative study on African catfish (Burchell, 1822) hypophysation using ovaprim and chicken pituitary gland extract

2021 ◽  
Vol 3 (1) ◽  
pp. 1-6
Author(s):  
O. A. Babalola ◽  
◽  
F. A. Fakunmoju ◽  
T. F. Sunnuvu ◽  
B. E. Faleti ◽  
...  
Keyword(s):  
Water Quality ◽  
Comparative Study ◽  
Pituitary Gland ◽  
Clarias Gariepinus ◽  
Latency Period ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
African Catfish ◽  
Gland Extract ◽  
Significant Difference

Comparative study on African catfish hypophysation indices using ovaprim and chicken pituitary gland extract (CPGE) was carried out. Sixteen (16) African catfish brood stocks between 1100 and 2300 g in ratio 2:1 and four (4) numbers of layer birds (Gallus gallus domesticus) between 1200 and 2200 g in ratio 1:3 were used respectively. The experiment was batched into “A” and “B”. Batch ‘A’ was placed on ovaprim while batch ‘B’ was placed on CPGE. An indoor hatchery vat, measuring 0.6096 m x 1.8288 m x 0.3048 m each was used for the incubation. Digital measuring kits were used to monitor water quality parameters and measurement of the brood stocks weights independently. Brood stocks on ovaprim and CPGE treatments had the following mean hypophysation indices in these order: fecundity (11100±7690 and 17760±13863), latency period (9.53±0.54 and 9.77±0.49), fertilization percentage (94.03±5.90% and 90.6±10.11%), hatchability percentage (75.6±0.81% and79.35±10.27%), number of eggs produced (5889±657.37 and 9403.33±589.80), total number of larvae hatched (4717.33±1111.0 and 7111.33±506.64), SGR (0.67±0.31 and 1.1±0.31), and survival rate (64.81±0.71 and66.24±2.19) respectively. There was no significant difference (p = 0.05) in the mean values of fecundity, latency period, fertilization and hatchability percentages in both treatments but there was significant difference (p ≤ 0.05) in number of eggs produced and total number of larvae hatched in both treatments. The water quality parameters were within the range for induced breeding techniques and there was no significant difference (p= 0.05) in both experiments. Both ovaprim and CPGE had excellent results from the induced breeding of Clarias gariepinus and yielded good results. Therefore, CPGE could be recommended from the view point of excellent results and its availability from chicken slaughter houses as against ovaprim which are imported.

Isolation and Pathogenicity Determination of Bacillus cereus Associated with Ulcer Formation in African Catfish Clarias gariepinus

2020 ◽  
Vol 15 (1) ◽  
pp. 10-18
Author(s):  
Abdelgayed M. Younes ◽  
Alkhateib Y. Gaafar ◽  
Alaa Eldeen Z. ◽  
Attia A. Abou Zaid ◽  
Ahmed A. Askora
Keyword(s):  
Bacillus Cereus ◽  
Clarias Gariepinus ◽  
African Catfish ◽  
Ulcer Formation

Toxicity of glyphosate-based isopropylamine salt and polyethoxylated tallow amine formulations on juvenile Clarias gariepinus

2021 ◽  
Vol 36 (1) ◽  
pp. 63-73
Author(s):  
A.B. Ella ◽  
E.T. Azua ◽  
C.U. Aguoru ◽  
A.A. Onekutu ◽  
F.A. Ella
Keyword(s):  
Clarias Gariepinus ◽  
Exposure Period ◽  
Quality Parameters ◽  
Fish Mortality ◽  
African Catfish ◽  
Physico Chemical ◽  
Tail Movement ◽  
Glyphosate Formulation ◽  
Lower Limits ◽  
Eventual Death

The formulation of glyphosate composed of Isopropylamine salt and Polyethoxylated tallow Amine (Clearweed) is widely used as herbicide to control weeds both in the terrestrial and aquatic environments. A static bioassay was conducted to examine toxicity of this formulation on juvenile African catfish (Clarias gariepinus). Catfish juvenile (mean weight 27.97±0.03g) were exposed to glyphosate at concentrations of 0.00mg/l (control), 5.00, 7.50, 10.00, 12.50 and 15.00mg/l. Each concentration was treated in triplicate and the exposure period lasted for 96 hrs. Mortality rates and physico-chemical parameters of water were monitored. Results revealed that fish mortality increased with increasing concentration of glyphosate and time of exposure. The median lethal concentration (96-hr LC50) value was 8.88mg/l with the upper and lower limits of 9.10mg/l and 7.75mg/l respectively. Behavioural changes observed the treated fish included: erratic swimming, jerky movement, increased opercula and tail movements, gulping of air, lost of balance and consciousness, cessation of opercula and tail movement signifying eventual death. Water quality parameters increased significantly (p<0.05) with extract concentration except dissolve oxygen levels which reduced (p<0.05). However, all values reported were within the permissible limits of the Federal Ministry of Environment (FMEnv) for water samples. The results of this study indicated that glyphosate formulation has toxic effects on catfish. Thus, the herbicide should be cautiously used to avoid ecotoxicological hazards particularly on non-target organisms.

scholarly journals Expression of Heat Stress Biomarkers in Wild and Cultured African Catfish Clarias gariepinus (Burchel, 1822)

2019 ◽  
pp. 1-5
Author(s):  
K. Gbadamosi Oluyemi ◽  
R. Osungbemiro Nelson
Keyword(s):  
Heat Stress ◽  
Glucose Level ◽  
Clarias Gariepinus ◽  
Stocking Density ◽  
Quality Parameters ◽  
Average Weight ◽  
African Catfish ◽  
Female Fish ◽  
Wild Female ◽  
Stress Biomarkers

The expression of heat stress biomarkers in wild and cultured African catfish Clarias gariepinus was investigated in this study. Twenty wild and cultured fish species of average weight of 400±50g were obtained from Owena dam, (Latitude: 7°20'46.04"Longitude: 4°59'54.99") and a reputable fish farm in Akure, Ondo State.  Ten male and female fish from the two source were all conditioned for 3days in concrete tanks. The fish were stocked in concrete tanks of 2m x 2m x 1m with the stocking density of 5 in each tank and the water quality parameters were monitored. Fish were subjected to hyperthermia-induced shock at 39oC with the aid of a 2-kW heating rod (Binatone, Japan). At the end of the hyperthermia-induced stress. Blood samples were collected to determine the glucose level and the expression of Heat Shock Protein (HSP). The highest glucose level of 50mg /l was found in the cultured male African catfish and the lowest glucose level of 18mg/l was found in wild female African catfish. There was higher diversity and expression of HSP in cultured female fish than the wild male. The result of this study showed that the expression of stress biomarkers in African catfish Clarias gariepinus was influenced by the gender and the environment where the fish was found with the male and wild fishes showing more resistance to stress.

scholarly journals Morphometric and histological features of the testicles of cultured male broodstock African Catfish (Clarias gariepinus) at different ages

2018 ◽  
Vol 68 (2) ◽  
pp. 211 ◽  
Author(s):  
OKOYE CHIDOZIE NWABUISI ◽  
ANIETIE FRANCIS UDOUMOH ◽  
DAN-JUMBO SUSAN OMUBOBA ◽  
EZE UKAMAKA UCHENNA ◽  
OZOKOYE ANTHONY CHUKWUEMEKA ◽  
...  
Keyword(s):  
Clarias Gariepinus ◽  
Fish Population ◽  
Seminiferous Tubules ◽  
African Catfish ◽  
Spermatogenic Cells ◽  
Morphological Adaptations ◽  
The Mean ◽  
Partial Distortion ◽  
Apparently Healthy

Testicular tissues obtained from 25 apparently healthy broodstock African Catfish (Clarias gariepinus) of 6, 8, 9, 10 and 12 months old were used to investigate the morphological adaptations of the testicles suitable for reproductive exercises. The result showed that the mean gonadosomatic indices of the pooled testicles of the catfish increased linearly from 0.30 ± 0.02, 0.34 ± 0.01, 0.45 ± 0.09 at 6, 8, and 9 months of age respectively and peaked at 12 months with a GSI value of 0.61±0.13. Moreover, the epithelial height of the seminiferous tubules of 9 month old catfish was significantly (P<0.05) higher than the epithelial heights of the 6, 8, 10 and 12 month old fish. The luminal diameters of the seminiferous tubules of the testicles of 10 and 12 months old catfish were significantly (P<0.05) higher than the luminal diameters of the 6, 8 and 9 months old fish. The encapsulated testicles of the catfish exhibited seminiferous lobules which contained spermatogenic cells in cysts. However, at 10 months, there were partial distortion of the cystic distribution of the spermatogenic cells and occasional loss of the germinal epithelium while evidences of necrosis of some of the cells of the seminiferous epithelium were recorded in the testicles of 12 months old fish. Finally, the present study has provided morphological evidences that the use of gonadosomatic indices alone in the determination of the reproductive state of a fish population may give an erroneous picture and that the 8 and 9 months old broodstock African Catfish (Clarias gariepinus) may be most suitable for breeding exercises.

scholarly journals Growth Response of Clarias Gariepinus (North African Catfish) Under Varying Feeding Rates

2020 ◽  
pp. 113-117
Author(s):  
Ofonime Edet Afia ◽  
David Oristeseyi Kolawole ◽  
Gift Samuel David
Keyword(s):  
Body Weight ◽  
Growth Response ◽  
Feeding Rate ◽  
Clarias Gariepinus ◽  
Fish Farming ◽  
Quality Parameters ◽  
African Catfish ◽  
Feeding Rates ◽  
Feed Conversion ◽  
Commercial Feed

In fish farming, feeding rate is an important factor affecting the growth of fish, and thus determining the optimal feeding rate is important to the success of any aquaculture operation. This study which lasted for 99 days investigated the effect of varying feeding rates on the growth response of African catfish, Clarias gariepinus fingerlings. One hundred and eighty fingerlings were randomly distributed into nine experimental tanks giving 20 fingerlings per tank with an initial weight of 5.92±0.006 g. Three feeding rates were employed as treatments – 3%, 5%, and 7% of fresh body weight, with three replicates per treatment. The fishes were fed three times daily with commercial feed (Aller-aqua) of 42% crude protein. Growth and water quality parameters were measured fortnightly and feed ration adjusted according to the biomass in each tank. Results show that Final Mean Weight, Mean Weight Gain, Specific Growth Rate, Performance Index and Protein Efficiency Ratio were significantly higher (p<0.05) in fish fed 7%. However, Feed Conversion Ratio were better at 3% body weight (p<0.05). Based on the growth performance and feed efficiency data obtained, the study suggests the optimum feeding rate of 5% bw/day for African catfish, C. gariepinus fingerlings.

ANALISIS KUALITAS AIR PADA KOLAM PENDEDERAN IKAN LELE DUMBO (Clarias gariepinus) DENGAN PENAMBAHAN TEPUNG DAUN SINGKONG (Manihot utillisima) SEBAGAI PAKAN BUATAN

2019 ◽  
Vol 5 ◽  
pp. 131
Author(s):  
Andi Alifia Fara Dhiba ◽  
Husain Syam ◽  
Ernawati Ernawati
Keyword(s):  
Water Quality ◽  
Clarias Gariepinus ◽  
Quality Parameters ◽  
T Test ◽  
Water Quality Parameters ◽  
African Catfish ◽  
Nursery Pond ◽  
Quality Of Water ◽  
Commercial Feed

This study aims to determine the effect of artificial feed by adding cassava leaf flour (Manihot utillisima) to the water quality of the African catfish nursery pond (Clarias gariepinus). This study used the T test (one sample T test) to compare the treatment with artificial feed and commercial feed consisting of 3 replications. The feeding dose was 3% of the weight of the fish for 30 days of maintenance with the frequency of feeding twice a day. Parameters observed were NH3, NO2, NO3, pH, temperature, DO and survival of African catfish. The results showed that the provision of artificial feed in the African catfish nursery did not have a significant effect (P> 0.05) on the observed water quality parameters. The quality of water obtained during maintenance by providing commercial and artificial feed is still supporting the survival of African catfish.

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