scholarly journals Mortality Rate of Clarias gariepinus Fingerlings Exposed to 2, 3- dichlorovinyl dimethyl Phosphate

2017 ◽  
Vol 13 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Adesola Ojesanmi ◽  
Glory Richard ◽  
Sylvester Izah
Keyword(s):  
Mortality Rate ◽  
Clarias Gariepinus ◽  
Dimethyl Phosphate

scholarly journals UJI KONSENTRASI PENGHAMBATAN MINIMAL, RESISTENSI DAN PENGGUANAAN ANTIBIOTIK UNTUK MENANGGULANGI PENYAKIT MOTIL AEROMONAS SEPTISEMIA (MAS) PADA LELE DUMBO (Clarias gariepinus)

1996 ◽  
Vol 1 (1) ◽  
pp. 49
Author(s):  
Kamiso H. N. ◽  
Triyanto Triyanto ◽  
Sri Hartati
Keyword(s):  
Mortality Rate ◽  
Clarias Gariepinus ◽  
Oral Medication ◽  
Dilution Method ◽  
Injection Methods

Five isolates of A. hydrophila were used for MIC, and resistency test to rifampicin, kanamycin, chloramphenicol, erythromycin and oxytetracyclin by dilution method with TSB medium. The results indicated that the bacteria had various degree of sensitivity to these antibiotics. Resistency of bacteria isolates increase 1.3 to 6.2 times after they were passaged three times to MIC of the drugs or antibiotics by dilution method. Other test was kanamycin medication conducted by i.p. injection, immersion, and oral methods. The result showed that all kanamycin medication methods were effective to decrease mortality rate caused by A. hydrophilia infection. Oral medication method was the most effective compare to other methods because this method could minimize stress during handling. However, oral medication took much longer time (15 days) than immersion and injection methods (few minutes).

scholarly journals LETHAL EFFECTS OF 2,2-DICHLOROVINYL DIMETHYL PHOSPHATE (DDVP) ON FINGERLING AND JUVENILE Clarias gariepinus (BURCHELL, 1822)

2013 ◽  
Vol 71 (1) ◽  
pp. 19-24 ◽  
Author(s):  
Isaac Tunde Omoniyi ◽  
Kazeem Lanre Adeogun ◽  
Samuel Olubodun Obasa
Keyword(s):  
Clarias Gariepinus ◽  
Lethal Effects ◽  
Dimethyl Phosphate

Medicinal Plant Feed Additives Enhanced Survivability and Growth Performance of Clarias gariepinus (African Catfish) against Bacterial Infection

2021 ◽  
Vol 12 (4) ◽  
pp. 744-752
Author(s):  
Adebisi Musefiu Tiamiyu ◽  
Isaac Olufemi Olatoye ◽  
Okunlade Akinsola Olayemi ◽  
Temitope Cyrus Ekundayo ◽  
Olufemi Bolarinwa Adedeji ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Mortality Rate ◽  
Medicinal Plant ◽  
Growth Performance ◽  
Allium Sativum ◽  
Clarias Gariepinus ◽  
Feed Additives ◽  
Control Group ◽  
African Catfish ◽  
Chromolaena Odorata

The growth performance and survivability enhancement potential of some medicinal plant feed additives for combatting Pseudomonad infections in Clarias gariepinus were evaluated. Three medicinal plants (5 g/kg Allium sativum, 10 g/kg Chromolaena odorata and 10 g/kg Talinum triangulare) were incorporated separately into a basic diet. Juvenile Clarias gariepinus (n = 150, 53.05 ± 0.23 g), randomised into four groups, were fed for 42 days. The control group was fed with a non-supplemented diet. Growth parameters were determined and thereafter ten fish from each group, randomly selected, were inoculated intraperitoneally with pathogenic Pseudomonas aeruginosa (0.2 mL culture containing 1.4 × 106 cfu/mL). Their survivability was observed for 7 days based on mortality rate and relative level of protection (RLP). Mean weight gains were higher in all treated groups and significantly higher (p < 0.05) in the group of fish fed with 5 g/kg Allium sativum diet compared with the control. The lowest mortality rate (20%) and highest RLP (75) was recorded in the group fed with10 g/kg Chromolaena odorata. The results suggest that medicinal plant feed additives enhanced growth and survival of the cultured Clarias gariepinus. The study recommends 5 g/kg Allium sativum and 10 g/kg Chromolaena odorata diet supplementations as an effective growth promoter and anti-Pseudomonas aeruginosa agent, respectively, for Clarias gariepinus production.

scholarly journals Behavioral Response and Acute Toxicity of Fingerlings of African Cat Fish, Clarias Gariepinus Exposed to Paraquat Dichloride

2019 ◽  
Vol 1 (3) ◽  
pp. 13-20
Author(s):  
Ogaga Augustine Aghoghovwia ◽  
Preyo Isaac Morgan ◽  
Sylvester Chibueze Izah
Keyword(s):  
Surface Water ◽  
Mortality Rate ◽  
Behavioral Response ◽  
Clarias Gariepinus ◽  
Exposure Period ◽  
Sublethal Concentration ◽  
Behavioural Response ◽  
Agricultural Fields ◽  
Surface Water Resources ◽  
Study Results

This study evaluated the behavioural response and toxicity of paraquat dichloride to fingerlings of Clariasgariepinus. The fishes were acclimatized for 14 days and exposed to sublethal concentration of 0.00 ppm, 16.56 ppm, 22.08 ppm, 27.60 ppm, 33.12 ppm and 38.64 ppm. A 24 hours’ renewal bioassay was adopted in this study. Results showed that the fishes exhibited change in swimming, opercular movement, body pigmentation, surfacing and air gulping. Mortality rate increased significantly at p<0.05 as the concentration of the toxicant increased as well as the exposure period. LC50 values at 24, 48, 72 and 96 were 59.95, 47.59, 38.12 and 26.18ppm, respectively. Based on the results, Paraquat dichloride users need to discard the remains of empty cans properly to avoid contamination. Also there is need to exercise caution when using paraquat dichloride based herbicides in agricultural fields close to surface water resources.

scholarly journals Enhancing the supply and self-sufficiency of animal protein for local population through artificial propagation of African sharptooth catfish Clarias gariepinus (Burchell, 1822)

2021 ◽  
Vol 10 (1) ◽  
pp. 13-24
Author(s):  
Mbaye Tine
Keyword(s):  
Mortality Rate ◽  
Pituitary Gland ◽  
Clarias Gariepinus ◽  
Good Growth ◽  
Average Growth ◽  
High Fecundity ◽  
Artificial Food ◽  
The Third ◽  
Wide Range ◽  
African Sharptooth Catfish

The African sharptooth catfish, Clarias gariepinus Burchell, 1822 is the second most farmed fish species in Senegal due to its high fecundity, good growth performance and tolerance of a wide range environmental condition. Despite its economic importance, much remains to be done to improve the production of the species under controlled conditions. The main objective of this study was to implement a suitable method for seed production to meet the increasing demand for fish through the induction of C. gariepinus spawning by hormonal injection using ovaprim and pituitary gland extracts of C. gariepinus. The experiments were independently conducted in three different locations in Senegal: National Aquaculture Agency (ANA) hatchery (Kolda, Kolda), the National Agency for Agricultural Integration and Development (ANIDA) fish farm (Maraye village, Dagana, Saint-Louis) and SENAQUA farm (Tille Bobou, Khombol, Thiès). The results of hormonal induction with ovaprim (dose: 0.5ml/kg of female body weight) stimulated evolution, with 122,500, 150,000 and 15,000 eggs for the ANA, ANIDA and SENAQUA experiments, respectively. The induction with pituitary gland extracts did not, however, provoke female ovulation, probably due to the low dose of hormone contained in these extracts. The hatching rate of the three localities was 60% (73,500 larvae), 30% (45,000 larvae) and 48% (72,000 larvae), respectively. An average growth of 0.25cm/d was recorded for the ANA larvae that were fed exclusively with zooplankton from the third day after hatching, with an alternation of artificial food and zooplankton on the sixth day and with artificial food only on the fourteenth day. However the larvae in this locality had a very high mortality rate of 95%. The mortality rate was also extremely high at ANIDA (96%) where larvae were fed with artemia the second day after hatching throughout the first week, and at SENAQUA farm (98%) where larvae were exclusively fed with dry artificial food (exogenous) from the third day, which corresponds to the resorption of the yolk sac. The high larval mortalities recorded in this study may be due the diet and/or poor water quality in the rearing tanks. These parameters are crucial for the success of larval breeding of C. gariepinus. Based on these results, we suggest increasing by 2 to 3 pituitaries/female and see the effect of this increase on C. gariepinus ovulation.We therefore recommend monitoring breeding conditions after hatching and feeding the larvae with an appropriate diet, preferentially with live food to obtain a better yield, which could help improve production and open other perspectives for the development of aquaculture in Senegal.

scholarly journals Acute Toxicity of Clarias Gariepinus Fingerlings Exposed to 2,4-D Dimethylamine Salt

2020 ◽  
Vol 2 (4) ◽  
pp. 1-7
Author(s):  
Enetimi Idah Seiyaboh ◽  
Esther Benafegha Enaregha ◽  
Sylvester Chibueze Izah
Keyword(s):  
Mortality Rate ◽  
Acute Toxicity ◽  
Aquatic Ecosystem ◽  
Exposure Duration ◽  
Clarias Gariepinus ◽  
Sublethal Concentration ◽  
Range Finding ◽  
Swimming Pattern ◽  
The Media ◽  
Made In

This study investigated the acute toxicity of Clariasgariepinusfingerlings. The fingerlings of Clariasgariepinuswere acclimatized for 1 week before the range-finding test was carried out at varying concentrations. Sublethal concentration (viz: 0.00ppm, 10.80 ppm, 18.00 ppm, 25.20 ppm, 32.40 ppm and 39.60 ppm of the 2,4-D Dimethylamine salt) were made in a rectangular aquarium. Each experimental concentration was carried out in triplicate with 10 fish each. The media were renewed at every 24 hours throughout the experimental duration viz: 96 hours. When the fish were introduced into the aquarium containing the toxicants, they exhibited some behavioural changes including opercular movement, air gulping and irregular swimming pattern. The mortality rate significantly increased as the concentration of the 2,4-D Dimethylamine salt increased for each of the exposure duration. The LC50 values at 24, 48, 72 and 96 were 86.15 ppm, 36.28 ppm, 18.72 ppm and 15.68 ppm, respectively. From the findings of this study, there is a need for exercise caution in the use of 2,4-D Dimethylamine salt based herbicides close to the aquatic ecosystem.

Surgical and endovascular hybrid approach in peripheral arterial disease of the lower limbs

VASA ◽  
2016 ◽  
Vol 45 (5) ◽  
pp. 417-422 ◽  
Author(s):  
Anouk Grandjean ◽  
Katia Iglesias ◽  
Céline Dubuis ◽  
Sébastien Déglise ◽  
Jean-Marc Corpataux ◽  
...  
Keyword(s):  
Mortality Rate ◽  
Peripheral Arterial Disease ◽  
Limb Salvage ◽  
Hybrid Approach ◽  
Arterial Disease ◽  
Early Mortality ◽  
Secondary Patency ◽  
Limb Salvage Rate ◽  
Peripheral Arterial ◽  
Salvage Rate

Abstract. Background: Multilevel peripheral arterial disease is frequently observed in patients with intermittent claudication or critical limb ischemia. This report evaluates the efficacy of one-stage hybrid revascularization in patients with multilevel arterial peripheral disease. Patients and methods: A retrospective analysis of a prospective database included all consecutive patients treated by a hybrid approach for a multilevel arterial peripheral disease. The primary outcome was the patency rate at 6 months and 1 year. Secondary outcomes were early and midterm complication rate, limb salvage and mortality rate. Statistical analysis, including a Kaplan-Meier estimate and univariate and multivariate Cox regression analyses were carried out with the primary, primary assisted and secondary patency, comparing the impact of various risk factors in pre- and post-operative treatments. Results: 64 patients were included in the study, with a mean follow-up time of 428 days (range: 4 − 1140). The technical success rate was 100 %. The primary, primary assisted and secondary patency rates at 1 year were 39 %, 66 % and 81 %, respectively. The limb-salvage rate was 94 %. The early mortality rate was 3.1 %. Early and midterm complication rates were 15.4 % and 6.4 %, respectively. The early mortality rate was 3.1 %. Conclusions: The hybrid approach is a major alternative in the treatment of peripheral arterial disease in multilevel disease and comorbid patients, with low complication and mortality rates and a high limb-salvage rate.

Darmkrebs-OP: Auf die Erfahrung kommt es an

2020 ◽  
Vol 52 (04) ◽  
pp. 162-164
Author(s):  
Frank Lichert
Keyword(s):  
Rectal Cancer ◽  
Mortality Rate ◽  
Hospital Mortality ◽  
Hospital Volume ◽  
Rectum Resection

Diers J et al. Nationwide in-hospital mortality rate following rectum resection for rectal cancer according to annual hospital volume in Germany. BJS Open 2020; doi:10.1002/bjs5.50254

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