The seminal vesicle of the African catfish, Clarias gariepinus

1987 ◽  
Vol 247 (3) ◽  
pp. 573-582 ◽  
Author(s):  
R. van den Hurk ◽  
J. W. Resink ◽  
J. Peute
Keyword(s):  
Seminal Vesicle ◽  
Clarias Gariepinus ◽  
African Catfish

The chemical nature of sex attracting pheromones from the seminal vesicle of the African catfish, Clarias gariepinus

Aquaculture ◽  
1989 ◽  
Vol 83 (1-2) ◽  
pp. 137-151 ◽  
Author(s):  
J.W. Resink ◽  
W.G.E.J. Schoonen ◽  
P.C.H. Albers ◽  
D.M. Filé ◽  
C.D. Notenboom ◽  
...  
Keyword(s):  
Seminal Vesicle ◽  
Chemical Nature ◽  
Clarias Gariepinus ◽  
African Catfish

Preliminary report on the age-related variations in the serum and seminal plasma testosterone, seminal plasma biochemistry and seminal vesicle histochemistry of male broodstock African catfish (Clarias gariepinus)

2017 ◽  
Vol 26 (5) ◽  
pp. 1041-1047
Author(s):  
Chidozie Nwabuisi Okoye ◽  
Susan Omuboba Dan-Jumbo ◽  
Anietie Francis Udoumoh ◽  
Ukamaka Uchenna Eze ◽  
Anthony Chukwuemeka Ozokoye ◽  
...  
Keyword(s):  
Seminal Vesicle ◽  
Seminal Plasma ◽  
Preliminary Report ◽  
Clarias Gariepinus ◽  
Plasma Testosterone ◽  
African Catfish ◽  
Plasma Biochemistry ◽  
Age Related

scholarly journals The seminal vesicle as source of sex attracting substances in the African catfish, Clarias gariepinus

Aquaculture ◽  
1987 ◽  
Vol 63 (1-4) ◽  
pp. 115-127 ◽  
Author(s):  
J.W. Resink ◽  
R. Van Den Hurk ◽  
R.F.O. Groeninx Van Zoelen ◽  
E.A. Huisman
Keyword(s):  
Seminal Vesicle ◽  
Clarias Gariepinus ◽  
African Catfish

scholarly journals Effects of 17alpha-methyltestosterone on seminal vesicle development and semen release response in the African catfish, Clarias gariepinus

Reproduction ◽  
2001 ◽  
pp. 817-827 ◽  
Author(s):  
AT Viveiros ◽  
EH Eding ◽  
J Komen
Keyword(s):  
Treatment Group ◽  
Sex Ratio ◽  
Seminal Vesicle ◽  
Sexual Maturation ◽  
Semen Quality ◽  
Clarias Gariepinus ◽  
Seminal Vesicles ◽  
African Catfish ◽  
Minimum Effective Dose ◽  
Semen Collection

The effects of 17alpha-methyltestosterone on seminal vesicle development in the African catfish, Clarias gariepinus, were investigated in an attempt to improve semen collection from this species. Treatment of larvae with dietary 17alpha-methyltestosterone at 50 mg kg(-1) for days 12-33 or days 12-40 after hatching, or at 20 mg kg(-1) for days 12-26, 12-33, 12-40 or 12-47 after hatching inhibited the development of the seminal vesicle finger-like extensions in male catfish, but did not affect the sex ratio. The minimum effective dose and period of treatment to inhibit seminal vesicle development in all male catfish treated with 17alpha-methyltestosterone was 20 mg kg(-1) for days 12-40 after hatching. Male catfish from this treatment group developed normal testes that, in some cases, contained a few oocytes, which tended to disappear before sexual maturation. After sexual maturation, the semen release response was evaluated in males with incomplete seminal vesicles. Fluid with viable spermatozoa was obtained after two consecutive injections of carp pituitary suspension, from 10 of 19 males that had been fed 20 mg 17alpha-methyltestosterone kg(-1) for days 12-40 or days 12-47 after hatching, but from only 4 of 15 males that did not receive any dietary steroid. Intratesticular semen quality was not affected by 17alpha-methyltestosterone treatment. The results of this study demonstrate that the absence of seminal vesicle extensions induced by treatment with 17alpha-methyltestosterone facilitated the collection of semen by stripping from this species of fish.

Steroid glucuronides of the seminal vesicle as olfactory stimuli in African catfish, Clarias gariepinus

Aquaculture ◽  
1989 ◽  
Vol 83 (1-2) ◽  
pp. 153-166 ◽  
Author(s):  
J.W. Resink ◽  
P.K. Voorthuis ◽  
R. Van Den Hurk ◽  
R.C. Peters ◽  
P.G.W.J. Van Oordt
Keyword(s):  
Seminal Vesicle ◽  
Clarias Gariepinus ◽  
African Catfish ◽  
Olfactory Stimuli

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>

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