Comparative study on milt quality features of different finfish species
<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 8.0px Verdana;">The aim of this research was to study the main sperm characteristics of three different finfish species. Twenty-one gilt-<span style="font: 12.0px Helvetica;"> </span></p> <p styl...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2010-01-01
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| Series: | Italian Journal of Animal Science |
| Subjects: | |
| Online Access: | http://www.aspajournal.it/index.php/ijas/article/view/251 |
| Summary: | <p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 8.0px Verdana;">The aim of this research was to study the main sperm characteristics of three different finfish species. Twenty-one gilt-<span style="font: 12.0px Helvetica;"> </span></p> <p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 8.0px Verdana;">head sea bream (<em>Sparus aurata</em>), 20 brown trout (<em>Salmo trutta</em>, morpha fario) and 15 rainbow trout (<em>Oncorhynchus</em><span style="font: 12.0px Helvetica;"> </span></p> <p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 8.0px Verdana;"><em>mykiss</em>) male broodstocks, farmed under optimal conditions for each species and fed standard diets for broodstocks, were<span style="font: 12.0px Helvetica;"> </span></p> <p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 8.0px Verdana;">manually stripped. Brown trout yielded small amounts of sperm (4.5 <em>vs</em>18.13 ml) that were very concentrated (<span style="font: 8.0px Symbol;">≅</span>8.5 x<span style="font: 12.0px Helvetica;"> </span></p> <p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 8.0px Verdana;">10<span style="font: 7.0px Verdana;">9</span><span style="font: 12.0px Helvetica;"> </span>vs 1.24 x 10<span style="font: 7.0px Verdana;">9</span><span style="font: 12.0px Helvetica;"> </span>Szoa/ml) with respect to the other species. The duration of spermatozoan motility for gilthead sea<span style="font: 12.0px Helvetica;"> </span></p> <p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 8.0px Verdana;">bream sperm was significantly longer (almost 50 min), in comparison to the one-minute motility of Salmonids. Single<span style="font: 12.0px Helvetica;"> </span></p> <p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 8.0px Verdana;">fatty acids of brown trout sperm were higher than in the other two species for almost all detected fatty acids. In partic-<span style="font: 12.0px Helvetica;"> </span></p> <p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 8.0px Verdana;">ular, eicosapentaenoic acid (EPA) was at least three times more concentrated in brown trout than in rainbow trout or gilt-<span style="font: 12.0px Helvetica;"> </span></p> <p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 8.0px Verdana;">head sea bream sperm (1238.3 <span style="font: 8.0px Symbol;">µ</span>g/g <em>vs</em>305.6 and 333.3 <span style="font: 8.0px Symbol;">µ</span>g/g, respectively; P < 0.01). Saturated, polyunsaturated and<span style="font: 12.0px Helvetica;"> </span></p> <p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 8.0px Verdana;">total unsaturated fatty acid classes were significantly higher in brown trout sperm than in the other two species - almost<span style="font: 12.0px Helvetica;"> </span></p> <p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 8.0px Verdana;">double with respect to gilthead sea bream sperm and more than double in comparison to RT sperm (P < 0.01).<span style="font: 12.0px Helvetica;"> </span></p><div><span style="font-family: Helvetica, Arial, Helvetica, sans-serif; font-size: small;"><span style="font-size: 12px;"><br /></span></span></div> |
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| ISSN: | 1594-4077 1828-051X |