Tale of Fish Sperm and Factors Affecting Sperm Motility: A Review

Islam, M. Sadiqul; Akhter, Tahmina

doi:10.5923/j.als.20110101.03

Cited by 54 publications

(29 citation statements)

References 91 publications

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“…Hypotonic medium initiates the motility of freshwater fish spermatozoa such as common carp Cyprinus carpio and goldfish Carassius auratus auratus (L). In salmonids (Cuvier, 1816) and sturgeon Acipenser sturio (Linnaeus, 1758), the decrease in K + concentration upon dilution is a key factor for sperm initiation, whereas in the cyprinids, a decrease in osmolality is the basis of this sperm activation (Islam and Akhter, 2011;Reinardy et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

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Saedeghi¹,

Núñez²,

Soler³

et al. 2017

Turk. J. Fish. Aquat. Sci.

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In the present work, the effects of the activation media with different osmolality and storage conditions on sperm motility and kinetic parameters over time after activation, using CASA system (ISAS®) in Danio rerio were analysed. The effect of pooled and individual ejaculate samples was also studied. Spermatozoids activated with high osmolality medium showed higher values in motility parameters and kinematic parameters in comparison with low osmolality medium. Respect to the individual ejaculates or the pool, although significant differences were observed in some parameters, no relevant changes were observed in total motility neither in kinetic parameter. Total motility and velocity of sperm showed significant lower values after sperm storage for 24 h at 4 ºC.

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Section: Discussionmentioning

confidence: 99%

“…The osmolality of seminal plasma usually prevent sperm motility (Alavi and Cosson, 2005;Islam and Akhter, 2011). This shows the importance of using adequate osmolality to activate fish species spermatozoa.…”

Section: Introductionmentioning

confidence: 99%

Untitled

Saedeghi¹,

Núñez²,

Soler³

et al. 2017

Turk. J. Fish. Aquat. Sci.

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“…Other factors also affect motility, such as pH, temperature, ion concentration and osmolarity (Islam & Akhter, 2011). Among these factors, the potassium ion concentration is essential, which, combined with the osmotic pressure, controls sperm motility in several species.…”

Section: Resultsmentioning

confidence: 99%

Induced reproduction of dourado (Salminus brasiliensis): fertilization with sperm cryopreserved in ACP®-104

Zanandrea

Weingartner

Zaniboni‐Filho

2016

Acta Sci. Anim. Sci.

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ABSTRACT. Experiments were conducted to improve the fertilization rate of cryopreserved semen of dourado, Salminus brasiliensis. The experiment tested two cryoprotectant solutions at different semen: cryoprotectant ratios (1:5, 1:15, 1:25 and 1:50). The standard solution for the species (mixture of dimethyl sulfoxide, glucose, egg yolk and distilled water) was compared to a 350 mOsm ACP ® -104 solution, which is composed of powdered coconut water diluted in distilled water and methylglycol. Differences between the dilutions tested were significant only for ACP ® . The fertilization potential by using the standard solution at the lowest dilution (1:5) is equated when the sperm is diluted in ACP ® at 1:25 or 1:50. These results show that the standard solution is the most suitable for the cryopreservation of dourado sperm, since the dilution did not alter the fertilization rate, requiring smaller storage space. Os resultados apontam que a solução padrão é mais vantajosa para a criopreservação de sêmen do dourado, uma vez que a variação da diluição do sêmen não altera a taxa de fertilização, requerendo, assim, menor espaço para armazenamento das amostras.Palavras-chave: criopreservação, esperma, fertilização; crioprotetor, água de coco.

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“…Subsequently, in most freshwater teleosts, sperm is only motile for a short time compared to other vertebrates, ranging from seconds up to several minutes, depending on the species as well as the external parameters (Billard & Cosson, ; Cosson, ). The properties of the seminal fluid (SF), such as ion concentrations, pH and osmolality affect the sperm motility and subsequently modulate fertilization success (for review, see Alavi & Cosson, , ; Islam & Akhter, ). Thus, buffers mimicking the conditions of the SF may allow for a dilution of sperm without activation of spermatozoa; such solutions are already widely used as extenders in cryopreservation (for review see Cabrita et al., ; Suquet, Dreanno, Fauvel, Cosson, & Billard, ).…”

Section: Introductionmentioning

confidence: 99%

Management of pikeperchSander lucioperca(Linnaeus, 1758) sperm quality after stripping

Schaefer

Overton²,

Bossuyt

et al. 2016

J. Appl. Ichthyol.

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Summary The aim of this study was to identify the potential for optimizing management of sperm quality during commercial reproduction of pikeperch Sander lucioperca. Sperm from different males is often pooled prior to fertilization or stored for short periods (hr) until ovulated eggs become available. A novel approach was applied to assess pooling effects by cross‐wise transfusion of sperm and seminal fluid (SF) of males with differing initial sperm quality. In addition, the effects of two different buffers (glucose and KCl) were tested, as well as a supplementation of melatonin and progesterone (1 mmol L−1) to maintain or improve the quality of freshly stripped and incubated (0.5, 1, 2, 4 and 24 hr) sperm. Sperm motility and curvilinear velocity (VCL) were measured by computer assisted sperm analysis (CASA). The VCL proved to be a more sensitive, reliable parameter compared to motility, since significant differences occurred up to 3.5 hr earlier. Transfusion of SF between low and high quality sperm resulted in a significant decrease in sperm with high initial VCL (seven out of 22 transfusions), whereas VCL of low quality sperm could not be improved. In only one case did a transfusion result in an increased VCL. No treatment prevented a significant quality loss over 24 hr or even enhanced sperm performance. Conclusively, pooling sperm of different qualities as well as short‐term storage has a significant, negative impact on overall sperm quality. Pooling should only be considered when the sperm quality is known.

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Tale of Fish Sperm and Factors Affecting Sperm Motility: A Review

Cited by 54 publications

References 91 publications

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<b>Induced reproduction of dourado (<i>Salminus brasiliensis</i>): fertilization with sperm cryopreserved in ACP<sup>®</sup>-104

Management of pikeperchSander lucioperca(Linnaeus, 1758) sperm quality after stripping

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