scholarly journals Anomalies in Bighead Carp Aristichthys nobilis and African Catfish Clarias gariepinus in Biratnagar, Nepal

Our Nature ◽  
1970 ◽  
Vol 2 (1) ◽  
pp. 41-44
Author(s):  
B.R. Subba
Keyword(s):  
Key Words ◽  
Vertebral Column ◽  
Clarias Gariepinus ◽  
Bighead Carp ◽  
African Catfish ◽  
Caudal Fin ◽  
Aristichthys Nobilis ◽  
Upper Jaw

Truncation and deformation on the upper jaw in juvenile and adult respectively in African catfish Clarias gariepinus; and vertebral abnormalities in Bighead carp Aristichthys nobilis are described. Key words: Anomalies, Upper jaw, Caudal fin, Vertebral column, Fishesdoi:10.3126/on.v2i1.324Our Nature (2004) 2: 41-44

scholarly journals DISTRIBUTION AND EXPRESSION OF STRIPED CATFISH (Pangasionodon hypophtalmus) GROWTH HORMONE GENE (PhGH) IN THE ORGAN OF AFRICAN CATFISH (Clarias gariepinus) TRANSGENIC FOUNDER

2012 ◽  
Vol 7 (1) ◽  
pp. 11
Author(s):  
Huria Marnis ◽  
Raden Roro Sri Pudji Sinarni Dewi ◽  
Imron Imron ◽  
Bambang Iswanto
Keyword(s):  
Growth Hormone ◽  
Clarias Gariepinus ◽  
Stomach Muscle ◽  
African Catfish ◽  
Growth Hormone Gene ◽  
Caudal Fin ◽  
Expression Levels ◽  
Striped Catfish ◽  
Pcr Method ◽  
High Level

Faster growing African catfish can be produced by transgenesis. This study was conducted to investigate the distribution and expression of growth hormone gene (PhGH) in various organs of the transgenic African catfish (Clarias gariepinus) founder (F0). Transgene was detected using the PCR method in various organs, namely pituitary, brain, liver, heart, spleen, kidney, intestine, stomach, muscle, caudal fin, gill and eye. Transgene expression levels were analyzed using the method of reverse transcriptase-polymerase chain reaction (RT-PCR), -actin gene used as internal controls. The results showed that the PhGH was detected and expressed in all organs of the transgenic African catfish founder. The high level of PhGH expression was found in the liver, pituitary, intestine and brain; smaller amounts were detectable in muscle, spleen, kidneys, heart, and stomach, caudal fin, gill and eyes, range from 0.02-0.75 PhGH/-actin mRNA. The expression levels of PhGH had positive correlation with tissue and body size (P<0.05).

scholarly journals MATURASI LELE MUTIARA Clarias gariepinus BETINA MELALUI PENAMBAHAN HORMON OODEV DAN ESTRADIOL-17ß PADA PAKAN

2021 ◽  
Vol 9 (1) ◽  
pp. 30-40
Author(s):  
Oktavia Rugus Ayu Enditha ◽  
Deny Sapto Chondro Utomo ◽  
Munti Sarida
Keyword(s):  
Key Words ◽  
Reproductive Cycle ◽  
Clarias Gariepinus ◽  
Spawning Season ◽  
Maturity Index ◽  
African Catfish ◽  
North African ◽  
Gonadal Maturity ◽  
Randomized Design ◽  
Completely Randomized Design

The problem in Mutiara strain of North African catfish Clarias gariepinus culture is that the production of both larvae and seeds is still inhibited by the seasonal reproductive cycle where the catfish only spawn once during the spawning season.  The purposes of this study were to evaluate the effect of administration of oodev and estradiol-17ß on the maturity process and to determine the best doses in accelerating the maturion of female Mutiara strain. This study used a Completely Randomized Design with 5 treatments and 3 individual replications. The treatments were combination between dose Oodev (PMSG and Anti-Dopamine) and dose Estradiol-17ß in feed (both doses in ml/kg feed):A(0+0), B(0.5+0), C(0+0.6), D(0.5+0,6), E(1+1). The results of this study showed that the administration of Oodev and Estradiol-17ß significant affect on gonadal maturity index about 82.21% compared to control and acclerating maturation of female mutiara strain with doses the best is the treatment E (oodev 1 ml/kg feed+estradiol-17ß 1 ml/kg feed).Key words: Clarias gariepinus, dose, estradiol-17ß, maturation, oodev

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%.

PEMBEKUAN SEMEN LELE DUMBO (Clarias Gariepinus BURCHELL 1822) SEBAGAI MODEL KRIOPRESERVASI SEMEN IKAN

2010 ◽  
Vol 9 (1) ◽  
Author(s):  
Lutfi Lutfi
Keyword(s):  
Liquid Nitrogen ◽  
Clarias Gariepinus ◽  
African Catfish ◽  
Nitrogen Vapor ◽  
Dmso Concentration ◽  
Freezing Temperatures ◽  
Vapor Liquid

<p><em>Effect of four types of diluents</em><em>s</em><em> and four concentration of DMSO (5%, 10%, 15% and 20%) against the motility of African catfish sperm were evaluated after storage at freezing temperatures. </em><em>The steps in preparation the 16 treatments combination of the diluents</em><em> </em><em>are </em><em>preparation of diluents, mixing </em><em>diluents </em><em>with DMSO, packing </em><em>of semen </em><em>in</em><em>to</em><em> 0.3-ml straw, equilibration of </em><em>semen </em><em>at 4 °C for 30 minutes, freezing </em><em>of </em><em>semen in nitrogen vapor liquid </em><em>at </em><em>a height of 6.5 cm for 10 minutes</em><em>,</em><em> and subsequent</em><em>ly</em><em> storage of </em><em>semen </em><em>in liquid nitrogen (-196</em><em> <sup>0</sup></em><em>C) for further analy</em><em>sis</em><em> </em><em>of </em><em>post-thawing motility (PTM). </em><em>The result showed that t</em><em>he highest level of motility of spermatozoa </em><em>was </em><em>in </em><em>treatment </em><em>P</em><em><sub>1</sub></em><em>D</em><em><sub>15 </sub></em><em>(45.7 ± 4.3%) and the lowest </em><em>was </em><em>in </em><em>treatment </em><em>P<sub>2</sub>D<sub>20</sub> (14.5 ± 13.2%). The best diluent </em><em>in </em><em>this observation </em><em>was </em><em>diluents containing NaCl, KCl, CaCl<sub>2</sub> and NaHCO<sub>3</sub>. The best concentration </em><em>was </em><em>DMSO 15%. While the best interaction between the concentration of DMSO diluents is P<sub>1</sub>D<sub>15</sub> treatments containing NaCl, KCl, CaCl <sub>2</sub> and NaHCO<sub>3</sub> with a combination of 15% DMSO concentration. </em><em>The </em><em>conclusion </em><em>of the research is that </em><em>diluents containing NaCl, KCl, CaCl<sub>2</sub> and NaHCO<sub>3</sub> with a combination of 15% DMSO concentration</em><em> can be used in </em><em>cryopreservation of African catfish semen</em><em>.</em></p>

Vitamin E as antioxidant in female african catfish (Clarias gariepinus) exposed to chronic toxicity of atrazine

2012 ◽  
Vol 16 (2) ◽  
pp. 83-98 ◽  
Author(s):  
Shadia Kadry ◽  
Afnan Amer ◽  
Mohamed Marzouk ◽  
Magdy Hanna ◽  
Amal Azmy ◽  
...  
Keyword(s):  
Vitamin E ◽  
Chronic Toxicity ◽  
Clarias Gariepinus ◽  
African Catfish

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

2011 ◽  
Vol 19 (6) ◽  
pp. 1025-1034 ◽  
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

scholarly journals Antioxidant and Cryoprotective Effects of Bone Hydrolysates from Bighead Carp (Aristichthys nobilis) in Freeze-Thawed Fish Fillets

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1409
Author(s):  
Yiqi Zhang ◽  
Ye Dong ◽  
Zhiyuan Dai
Keyword(s):  
Antioxidant Activity ◽  
Thiobarbituric Acid ◽  
Fish Bone ◽  
Bighead Carp ◽  
Vacuum Impregnation ◽  
Ferrous Ions ◽  
Freezing And Thawing ◽  
Aristichthys Nobilis ◽  
Fish Fillets

Bone hydrolysates from bighead carp (Aristichthys nobilis) were prepared using Protamex and Alcalase with degrees of hydrolysis (DH) of 5%, 10% and 15%. The antioxidant activity of bone hydrolysates was evaluated in vitro and then the hydrolysates with better antioxidant activity were used to immerse bighead carp fillets through a vacuum impregnation process at concentrations of 1% and 2%. Among the six hydrolysates, fish bone hydrolyzed with Protamex at DH 10% exhibited the highest ability to scavenge 1, 1-diphenyl-2-picrylhydrazyl (DPPH) (88.79%), 2, 2′-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) (57.76%) and hydroxyl radicals (62.72%), as well as to chelate ferrous ions (91.46%). The hydrolysates effectively postponed freezing- and thawing-induced protein/lipid oxidation. Compared with the fillets without treatment, the impregnated fillets had higher sulfhydryl contents, greater Ca2+-ATPase activity, lower carbonyls and lower thiobarbituric acid-reactive substances (TBARS). Bone hydrolysates also have a positive effect on the texture and water-holding ability of freeze-thawed fish fillets. Fish bone hydrolysates of Protamex could serve as potential antioxidants to preserve fish fillets.

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
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