Survival And Growth Responses Of Frys Of The African Catfish Hybrid (Clarias gariepinus X Heterobranchus bidorsalis) To Soluble Dietary Supplements Of Inorganic Phosphorus.

2008 ◽  
Vol 10 (1) ◽  
Author(s):  
LL Ugwu ◽  
GO Mgbenka ◽  
TO Nwazu
Keyword(s):  
Dietary Supplements ◽  
Clarias Gariepinus ◽  
Inorganic Phosphorus ◽  
African Catfish ◽  
Growth Responses ◽  
Survival And Growth

scholarly journals Survival and growth performances of Clarias gariepinus (Teleotei: Clariidae) fingerlings according to the hormone type in recycled water in South Cameroon

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Claudine Tekounegning Tiogué ◽  
Delphin Alfred Eva Ambela ◽  
Paulin Nana
Keyword(s):  
Linear Growth ◽  
Clarias Gariepinus ◽  
Juvenile Stage ◽  
African Catfish ◽  
Recycled Water ◽  
Relative Growth ◽  
Stage Of Development ◽  
Growth Performances ◽  
Survival And Growth ◽  
Optimum Production

In order to compare effects of the of hormone type (Ovaprim and pituitary extracts) on survival and growth performances of African catfish Clarias gariepinus in recycled water; this study was conducted from April to August 2016, in the South Region Cameroon. The main results are as follows: The survival rate was higher in fish from females treated with pituitary extracts regardless of stage of development, without significant differences (P> 0.05) between treatments. The fish treated with Ovaprim, expressed higher mass and linear growth performances than those treated with pituitary extracts, but not significantly (P> 0.05) regardless the considered stage of development. The relative growth rate (TCR) showed that fish grow faster at the fry stage than at the juvenile stage for both hormone types. Growth was negative Allometric type and K factor was ˂ 1 during breeding. It was concluded that the use of the synthetic hormone is not essential for optimum production of Clarias gariepinus fingerlings.

scholarly journals Pengkayaan Daphnia spp. Dengan Viterna Terhadap Kelangsungan Hidup Dan Pertumbuhan Larva Ikan Lele Dumbo (Clarias gariepinus)

2019 ◽  
Vol 1 (1) ◽  
pp. 59 ◽  
Author(s):  
Naila Budiatin Wahyu Mufidah, Boedi Setya Rahardja, Woro Hastuti Satyantini
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Clarias Gariepinus ◽  
Food Supplement ◽  
Animal Protein ◽  
Natural Food ◽  
African Catfish ◽  
Result Show ◽  
Survival And Growth

Abstract African catfish (Clarias gariepinus) is one of fish consumption use to fulfill animal protein. The fulfillment need of animal protein with aquaculture effort, where as in the aquaculture effort will larvae quality increased. Increasingly of larvae quality with natural food had been adding feed supplement. Natural food to used is Daphnia spp. and then food supplement to used is viterna. The viterna will increase Daphnia nutritions, because of the viterna contains many nutritions to survival and growth of African catfish. The aim of this study was to know the influence of Daphnia spp. enrichment with viterna to survival and growth of African catfish (Clarias gariepinus) larvae. The rearing of larvae during 40 days. This study used Complete Random Design. The treatment were A (present Daphnia spp. without viterna), B (Daphnia spp. enrichment with viterna 10 ml/L dose), C (Daphnia spp. enrichment with viterna 10 ml/L dose), D (Daphnia spp. enrichment with viterna 10 ml/L dose), E (Daphnia spp. enrichment with viterna 10 ml/L dose) dan F (Daphnia spp. enrichment with viterna 10 ml/L dose), each treatment with 4 replications. The result show that viterna applications to Daphnia was significantly influenced (p<0,05) to survival African catfish larvae. The highest survival was E treatment (7,25 %). The viterna leaf to Daphnia spp. Was significantly influenced (p<0,05) to specific growth rate African catfish larvae. The highest specific growth rate was B treatment (1,885 %BW/day).

scholarly journals Effects of Sub-Lethal Atrazine Concentrations on Embryogenesis, Larval Survival and Growth of African Catfish, Clarias gariepinus (Burchell, 1822)

2020 ◽  
Vol 21 (1) ◽  
pp. 01-09
Author(s):  
Prosper Ashibudike Opute ◽  
Ijeoma Patience Oboh
Keyword(s):  
Clarias Gariepinus ◽  
Treated Group ◽  
Larval Survival ◽  
African Catfish ◽  
Hatching Rate ◽  
Treatment Groups ◽  
Similar Dose ◽  
Atrazine Treatment ◽  
Survival And Growth ◽  
Morphological Deformities

The toxicity of environmentally relevant concentrations of atrazine on exposed fertilized eggs of Clarias gariepinus was evaluated in a 96hour static non-renewal bioassay. After exposure to atrazine concentrations of 0 (control), 4, 8, 12, and 16 μgL1 in water, first mitotic cleavage in the control occurred at 40 minutes after fertilization. The first cleavage did not occur in the 8 μgL-1 treatment group until 60 minutes after fertilization. Similar dose depended delayed cleavage was observed across atrazine exposed eggs. The first larvae emerged 22 hours from the time of fertilization at 27.00C in both control and atrazine treatment groups. However, hatching rates significantly differed between the control and atrazine exposed eggs (P<0.05) with 73.3% hatching rate in the control and 3.3% among the exposed eggs treated with 16μgL-1 of atrazine. Among the morphological deformities observed in the larvae of atrazine exposed eggs, kyphosis occurred more frequently with 60% of emerged larvae in the 16 μgL-1 atrazine treated group exhibiting the deformity. Morphometry showed significantly reduced head length, body length, body weight, and yolk diameter in 16 μgL-1 atrazine exposed eggs compared to the control. These results indicate that atrazine disrupted embryonic process and delayed hatching with severe larvae deformities.

EFEKTIVITAS ANTIBAKTERI BAWANG PUTIH (Allium sativum L) SEBAGAI PENGAWET ALAMI PADA IKAN LELE DUMBO (Clarias gariephinus) SEGAR

2019 ◽  
Vol 14 (1) ◽  
pp. 26
Author(s):  
Dyah Anggraeni ◽  
Nurlela Nurlela
Keyword(s):  
Room Temperature ◽  
Allium Sativum ◽  
Research Result ◽  
Clarias Gariepinus ◽  
Storage Period ◽  
The Body ◽  
Garlic Extract ◽  
African Catfish ◽  
Natural Preservatives ◽  
Colony Counter

Background: Natural preservatives are compounds produced by natural ingredients that can suppress bacterial growth and development. Natural preservatives are carried out because most of the preservatives circulating are chemicals and unsafe for the body. One of the natural preservatives is by using garlic extract (Allium sativum L).  Objective: This study is aimed to determine the effectiveness of the antibacterial garlic (Allium sativum L) as a natural preservative in fresh African catfish (Clarias gariepinus).  Method: This research used the Pour Plate iroculation method. African catfish (Clarias gariepinus) which is soaked with garlic (Allium sativum L) with a concentration of 7%, 14% and 21% for 30 minutes, then the fish will be kept at room temperature with a storage period of 24 hours and 48 hours and calculated growth in bacterial numbers with the Colony counter.  Result: Based on the research result, it was found that garlic extract (Allium sativum L) can obstruct the effectiveness of antibacterial in African catfish (Clarias gariepinus) at a concentration of 14%.

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