Changes in Mesopotamian spiny eel, Mastacembelus mastacembelus (Bank & Solender in Russell, 1794) (Mastacembelidae) milt quality during a spawning period
| Autor: | Erdinç Şahinöz, Zafer Doğu, Faruk Aral |
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| Rok vydání: | 2007 |
| Předmět: |
Male
Milt Time Factors Fish species Biology Sexual Behavior Animal Mastacembelidae Semen quality Animal science Food Animals Semen Animals Small Animals Sperm motility Spiny eel Eels Sperm Count urogenital system Equine Hydrogen-Ion Concentration biology.organism_classification Sperm Fishery Sperm Motility Animal Science and Zoology Mastacembelus mastacembelus |
| Zdroj: | Theriogenology. 67:848-854 |
| ISSN: | 0093-691X |
| DOI: | 10.1016/j.theriogenology.2006.11.001 |
| Popis: | This study was carried out to determine the milt quality in male Mesopotamian spiny eel (Mastacembelus mastacembelus ;B ank & Solender in Russell, 1794) during spawning season. Review was performed using 58 M. mastecembulus males captured from Ataturk Dam Lake in Turkey. Milt samples were collected and evaluated daily during sampling period. In collected milt, volume of milt, sperm motility percentage, the duration of forward motility, sperm concentration, milt production and milt pH were evaluated. On June 10, 2005, 72% of the males were spermiating, which increased to 100% in the middle of June and dropped to 72% by late June. Sperm motility percentage showed a significant improvement after beginning of spermiation (P < 0.001). Sperm concentration changed significantly (P < 0.001) in milt collected during sampling period. Duration of sperm motility increased significantly (P < 0.001) from beginning (8.22 min) through end (37.33 min) of spermiation. Milt production was maximal on June 15th, decreasing from a mean value of 3.12-0.46 � 10 9 /ml. The high pH in milt was observed during the week of spermiation (P < 0.001). In conclusion, the results show that season has a significant influence on semen quality in male M. mastecembulus corresponding to spawning season in hot arid. Milt of good quality was especially collected in the middle of June. Spawning season in this fish species was found to be short. |
| Databáze: | OpenAIRE |
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