Evaluation of Probiotic-Fermented Feed Addition and LaserFiring to Accelerate Mature Broodstocks and Seed Productions of African Catfish (Clarias gariepinus)

This study aimed to determine the effects of fermented feed using probiotics and laser-firing to accelerate the mature broodstocks and seed productions of African catfish (Clarias gariepinus). Fish has used male and female broodstocks of catfish. The method was used a completely randomized design with three treatments: unfermented feed as control, probiotic-fermented feed (PFF), and probioticfermented feed+laser firing (PFF+Li). In the first study, a laser-firing dose of 1.125 Joule was performed on fish broodstocks every 15 days. The gonadal maturity time of male and female broodstocks was observed. The second study, treated female broodstocks, was mated with mature male broodstocks without any prior treatments (control). Fertilization rate, hatching rate, and seed production performances such as survival rate and total length were measured. The results showed that treatment of PFF+Li has a significant effect (P<0.05) on the gonadal maturity time of males and females. This treatment reaches the fastest time to mature of the female gonad (31-41 days) and the male gonad (32-37 days) than other treatments (P<0.05). This treatment also produced the highest fertilization, hatching, and survival rates of more than 90%, respectively, and the highest seed yield of 2.1-3.0 cm size compared to other treatments (P<0.05) in African catfish.

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Effect of different water pH on hatching and survival rates of African catfish Clarias gariepinus (Pisces: Clariidae)

Aceh Journal of Animal Science ◽

10.13170/ajas.4.2.13574 ◽

2019 ◽

Vol 4 (2) ◽

pp. 80-88

Author(s):

Kasi Marimuthu ◽

Harysooria Palaniandya ◽

Zainal A. Muchlisin

Keyword(s):

Water Quality ◽

Incubation Period ◽

Clarias Gariepinus ◽

Survival Rates ◽

Larval Survival ◽

Low Ph ◽

African Catfish ◽

Hatching Rate ◽

Water Ph ◽

Ph Level

Water quality parameters influence the growth and survival of different stages of fishes and hence determining the optimal water quality variables is greatly important for any aquaculture farming. Among the variables, water pH is considered the key factors and plays an important role in the maintenance of the homeostasis in fishes. A study was conducted to determine the influence of different water pH on the incubation period, hatching rate and survival rate of African catfish (Clarias gariepinus) larvae. The fertilized eggs were incubated at 28.0 ± 1.0 °C with different levels of water pH ranging from 3-10. Twenty four pH levels were tested for incubation period and egg hatchability while 15 pH levels were tested for larval survivability in a completely randomized design with three replicates for each treatment. Just hatched larvae were used for this study and the effect was observed until 72 h post-hatching. Water pH was maintained by the addition of NaOH or H2SO4solutions. The incubation times of fertilized eggs were recorded to be 23.5–25.0 h at pH levels of 6.1–8.8. The increased incubation time was noticed at the rest of the acidic and alkaline pH levels. Significantly highest hatching rate was observed at the pH levels of 6.7–7.6 compared to those at lower and higher pH levels (P0.05). However, no significant differences (P0.05) were recognized in the hatching rates at the pH levels of 6.7 – 7.6. No hatching occurred at low pH levels between 3.1 and 3.4 and at high pH of 10. After 72 h of exposure to different pH levels, no larvae survived at pH levels below 4.5 and above 9.0. Highest larval survival (98%) was observed at pH 7.0 followed by 94% at pH 7.5 and 92% at pH 6.5. The results obtained in the present study revealed embryos and larvae can survive and tolerate to a low pH level of 3.7 and 4.5, respectively but the survival rates decreased with decreasing pH levels. Therefore, a water pH level of 6.7–7.5 is highly recommended for optimal hatching and highest larval viability of C. gariepinus.

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Artificial propagation and larval breeding tests of the african sharptooth catfish, Clarias gariepinus conducted in captive conditions

Journal of Marine Science Research and Oceanography ◽

10.33140/jmsro.04.01.05 ◽

2021 ◽

Vol 4 (1) ◽

Keyword(s):

Clarias Gariepinus ◽

Survival Rates ◽

Wire Mesh ◽

Individual Growth ◽

Natural Food ◽

African Catfish ◽

Hatching Rate ◽

Water Lettuce ◽

Artificial Food ◽

Artificial Propagation

The African catfish Clarias gariepinus is the second most cultured species in many African countries, including Senegal. Despite its economic importance in local aquaculture, artificial propagation of the species that would allow obtaining quality seed throughout the year has not yet been mastered adequately. This study aimed at producing C. gariepinus quality and mass supply seed to enhance local production. Three different types of incubation (Macdonald's bottle, water lettuce and wire mesh frame) were tested to identify the most efficient and accessible method for the producers at low cost and with a high hatching rate. The hatching rates obtained for the three different incubation methods were 26.9%, 10.0% and 6.3% for the Macdonald bottle (MB), wire frame (WF) and water lettuce (WL), respectively, while the corresponding survival rates were 91.6%, 70.4% and 77.8%.77.8%. The high hatching rate obtained with the MB could be due to the influence of permanent water circulation, which is absent in the other two hatching systems. The survival rates decreased 15 days after hatching and were 3.24%, 2.04% and 7.16%, respectively. The survival rates obtained three days after hatching were satisfactory, but the significant decrease at 15 days after hatching especially during the post- weaning phase seems to be due to the food quality, and unrelated to the hatching system. The daily individual growth, weight gain and body size of the larvae was significantly higher for larvae fed with natural food compared those that received artificial food. These results indicate that larvae preferred and fed the natural food which was permanently available in the rearing tanks. The artificial food deposited on the bottom of the tank changes appearance over time and may not be appreciated and efficiently consumed by the larvae, which may negatively impact their growth performance.

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Effect of Different Doses of Ovulin Hormone Suspended in Saline on the Induced Breeding Performance of African Catfishes Clarias anguillaris and Clarias gariepinus in Sokoto, Nigeria

Asian Journal of Fisheries and Aquatic Research ◽

10.9734/ajfar/2019/v3i430042 ◽

2019 ◽

pp. 1-8

Author(s):

H. F. Maradun ◽

L. A. Argungu ◽

M. Y. Abubakar ◽

F. Umar ◽

...

Keyword(s):

Significant Influence ◽

Clarias Gariepinus ◽

Fertilization Rate ◽

African Catfish ◽

Hatching Rate ◽

Breeding Performance ◽

Randomized Design ◽

Completely Randomized Design ◽

Different Levels ◽

Different Doses

A study on the effect of different doses of Ovulin hormone suspended in saline on the breeding performance of Clarias anguillaris and Clarias gariepinus was carried out. The experiment was conducted in a 2x5 factorial experiment in a Completely Randomized Design at the Hatchery Unit of the Department of Fisheries and Aquaculture, Usmanu Danfodiyo University, Sokoto. Species and hormone dilutions constituted the factors with specie having 2 levels (C. anguillaris and C. gariepinus) and Ovulin suspended in saline at 5 levels (0%, 25%, 50%, 75% and 100%). The result showed that species levels did not significantly (P>0.05) affect the breeding performance in all the breeding performance parameters observed. However, fertilization rate, hatching rate and survival rate were significantly affected (P<0.05) by different levels of Ovulin suspended in saline, but did not have significant influence (P>0.05) on egg weight, spawning fecundity and relative fecundity. It could be concluded from this study that Ovulin suspended in saline can have significant influence on the breeding performance of African catfish.

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Ovaprim treatment promotes oocyte development and milt fertilization rate in diploid and triploid African catfish (Clarias gariepinus)

Aquaculture International ◽

10.1007/s10499-011-9419-y ◽

2011 ◽

Vol 19 (6) ◽

pp. 1025-1034 ◽

Cited By ~ 15

Author(s):

Ali Karami ◽

Annie Christianus ◽

Hadi Zokaeifar ◽

Khairul Zamri Saad ◽

Fahmi T. J. Imraan ◽

...

Keyword(s):

Clarias Gariepinus ◽

Fertilization Rate ◽

Oocyte Development ◽

African Catfish

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Proximate composition of male and female African catfish (Clarias gariepinus) and tilapia (Tilapia zilli) in Jega river, Kebbi state, Nigeria

Journal of Fisheries, Livestock and Veterinary Science ◽

10.18801/jflvs.010220.04 ◽

2020 ◽

Vol 01 (02) ◽

pp. 28-35

Author(s):

W. M. Namaga ◽

B. Yahaya ◽

M. A. Salam

Keyword(s):

Protein Content ◽

Fish Species ◽

Lipid Content ◽

Proximate Composition ◽

Clarias Gariepinus ◽

Fibre Content ◽

African Catfish ◽

Male And Female ◽

Juvenile Female ◽

Significant Difference

Fish is highly nutritious, tasty, and easily digestible. It is much sought after by a broad cross-section of the world’s population, particularly in developing countries as it provides the cheapest protein source. Nigeria is blessed with numerous inland freshwater rivers and lakes scattered all over the country. This freshwater habitat consists of many species of fish that have successfully dominated all niches over time and have for many reasons remained unstudied. The situation concealed a lot of scientific information particularly on food security and safety to the inmates and the country at large. Jega River which transcended many States in the North-Western part of Nigeria to open into the river Niger is one of such rivers largely uncared for, study-wise. African catfish (Clarias gariepinus) and Tilapia (Tilapia zillii) have been wisely selected for the present proximate composition studies. The juveniles of these fishes were purchased from local fishermen in Mariner Waje landing site of the river which flows by Jega town, a local government area in Kebbi State, Nigeria. For the study, the methodology approved by the Association of Official Analytical Chemists (AOAC) was used to determine the proximate composition of the fishes. The highest percentage crude protein content of 49.18 ± 0.30% was observed in juvenile female C. gariepinus; while the lowest protein content of 39.22± 0.50% was observed in juvenile male T. zilli. The highest percentage lipid content of 11.75± 1.50% was observed in juvenile female tilapia; while the lowest percentage lipid content of 6.25± 0.29% was observed in male African catfish. The highest percentage fibre content of 4.00 ± 0.29% was observed in male and female C. gariepinus, while the lowest percentage fibre content of 0.75± 0.29% was observed in male tilapia. There were variations (p< 0.05) when the protein and lipid contents of both the species were compared with each other. There was also a significant difference (p< 0.05) when the carbohydrate contents were compared between the fish species, but there was no significant difference (p > 0.05) when the fibre content was compared within the species. The analyses showed that both the male and female fish species studied had high protein contents.

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SHORT COMMUNICATION: THE EFFECT OF TANNIN SOLUTION IN PERFORMING SUCCESFULL EGG MICROINJECTION ON AFRICAN CATFISH (Clarias gariepinus)

Indonesian Aquaculture Journal ◽

10.15578/iaj.4.2.2009.153-157 ◽

2009 ◽

Vol 4 (2) ◽

pp. 153

Author(s):

Muhammad Hunaina Fariduddin Ath-thar ◽

Komar Sumantadinata ◽

Alimuddin Alimuddin

Keyword(s):

Short Communication ◽

Clarias Gariepinus ◽

Standard Operating Procedure ◽

African Catfish ◽

Hatching Rate ◽

The Common ◽

Transgenic Embryos ◽

The Individual ◽

Breeding And Genetics ◽

Different Levels

In order to successfully perform a gene transfer activity using microinjection, an individual egg is needed. The common standard operating procedure to collect the individual egg is by applying chemical solution to remove the sticky layer covering the egg surface. Among several available solutions, tannin is one of alternative substances that can be used in performing egg microinjection on African catfish. In this study, the effect of different dosages of tannin solution to remove the sticky layer of eggs was observed. The study was conducted at the Laboratory of Fish Breeding and Genetics, Bogor Agricultural University. Prior to microinjection, the eggs were treated with different dosages of tannin solution right after fertilization. There were four different levels of dosage used as the treatments i.e.: 0.3, 0.5, 0.7, and 0.9 ppm. After the treatments, each individual egg was injected using DNA pmâactin-hrGFP plasmid with a concentration of 20 μg/mL. The results showed that the dosage of 0.5 ppm of tannin was the most effective treatment compared to the other dosages. This dosage produced 71.4% hatching rate and 57.1% transgenic embryos respectively.

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Reproductive Performances and Egg Qualities in African Catfish (Clarias gariepinus) Broodstocks Supplemented with Curcumin and Thyroxine Hormone

Omni-Akuatika ◽

10.20884/1.oa.2020.16.1.696 ◽

2020 ◽

Vol 16 (1) ◽

pp. 32

Author(s):

Livana Dethris Rawung ◽

Damiana Rita Ekastuti ◽

Muhammad Zairin Junior ◽

Min Rahminiwati ◽

Ade Sunarma ◽

...

Keyword(s):

Reproductive Performance ◽

Egg Quality ◽

Gonadosomatic Index ◽

Clarias Gariepinus ◽

Density Lipoprotein ◽

Cholesterol Concentration ◽

Hepatosomatic Index ◽

African Catfish ◽

Hatching Rate ◽

Significant Difference

An experiment was designed to study the effects of curcumin and thyroxine hormone supplementation in the diet to improve the reproductive performance of catfish broodstock by improving egg quality that eventually increases the production of seedlings. Catfish used in this experiment were supplemented with curcumin and thyroxine hormone through their feeds for 12 weeks. The results showed that there was no significant difference (p > 0.05) in the hepatosomatic index (HSI), gonadosomatic index (GSI), percentage of gonad maturity, total cholesterol concentration in the spawned eggs, high density lipoprotein (HDL) concentration in the spawned eggs, fertilization rate of spawned eggs, and hatching rate of fertilized eggs. However, there were significant differences (p < 0.05) in the concentration of vitellogenin in the spawned eggs, egg diameter of the spawned eggs, and the triglycerides contents of spawned eggs. It was concluded that curcumin and thyroxine supplementations of African catfish increased vitellogenin concentrations and diameters of spawned eggs that have great potential to improve the reproductive performance.

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Some Biological Aspects of Cultured Ompok Pabda (Hamilton, 1822) Collected from A Local Fish Farm in Mymensingh, Bangladesh

Aquaculture Studies ◽

10.4194/2618-6381-v21_4_02 ◽

2021 ◽

Vol 21 (4) ◽

pp. 149-159

Author(s):

Dulon Roy ◽

Ashish Kumer Sarker ◽

Abu Musa Mohammad Khairul Abedin ◽

Smita Sarker ◽

Kazi Nahida Begum ◽

...

Keyword(s):

Larval Development ◽

Fertilization Rate ◽

Female Dominance ◽

Hatching Rate ◽

Gonad Weight ◽

Female Ratio ◽

Gonadal Maturity ◽

Biological Aspects ◽

The Mean ◽

First Maturity

An experiment was conducted to observe some biological aspects including growth, sex ratio, gonadal maturity, artificial insemination, fecundity, fertilization, hatching and larval development of O. pabda in a private hatchery. Total weight of the sampled fish varied from 1.60±0.43 to 111.12±6.83 g and length varied from 3.57±0.65 to 21.22±1.84 cm with the SGR 2.85±0.18 and ADG 0.73±0.05. The length and weight of the fish had a strong correlation (r²=0.966). Female dominance over male has been observed in the species. The male to female ratio was 1:1.48. Females were 16.8 cm in length at first maturity, while males were 16.6 cm in length. The GSI of female were ranged from 2.93 to 4.77 with the mean of 3.77±0.60 during the study period. The fecundity of O. pabda was ranged from 5675 to 19626 with the mean of 12503±4192 for the corresponding length 21.23±1.71, body weight 111.12±7.6 and gonad weight 4.19±0.87. Fertilization rate, hatching rate and larval development observed during the experiment. Scattered diagram for length-weight, fecundity-length, fecunditybody weight and fecundity-gonad weight relationship shows a perfect correlation both arithmetically and logarithmically.

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