Testikelmått och daglig spermieproduktion hos svenska halvblodshingstar
Testicular measurements and daily sperm output (DSO) are important factors affecting reproductive capacity of stallions. In the present study testicular measurements of 10 Swedish half-blood stallions were determined (height, length, width and volume). Ejaculates were collected from each stallion on...
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| Formato: | L3 |
| Lenguaje: | sueco Inglés |
| Publicado: |
SLU/Dept. of Obstetrics and Gynaecology
2005
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| Materias: |
| _version_ | 1855572118982361088 |
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| author | Viberg, Frida |
| author_browse | Viberg, Frida |
| author_facet | Viberg, Frida |
| author_sort | Viberg, Frida |
| collection | Epsilon Archive for Student Projects |
| description | Testicular measurements and daily sperm output (DSO) are important factors affecting reproductive capacity of stallions. In the present study testicular measurements of 10 Swedish half-blood stallions were determined (height, length, width and volume). Ejaculates were collected from each stallion once daily for 10 days to evaluate some important seminal characteristics: gel-free ejaculate volume, sperm concentration, percent progressively motile spermatozoa and total number of spermatozoa (TSN). The gel-free ejaculate volume was measured with a graduated cylinder, the sperm concentration was counted in a Bürker chamber, the sperm motility was estimated in a phase-contrast microscope and TSN was determined by multiplying the gel-free seminal volume by the sperm concentration. Testicular measurements were as follows (left and right testis): height 7,5 cm and 7,8 cm, length 10,6 cm and 10,8 cm, width 6,5 cm and 6,6 cm, volume 278,2 cm3 and 293,8 cm3, scrotal width 12,3 cm and total testicular volume 572,0 cm3 . The gel-free ejaculate volume, sperm concentration and total number of spermatozoa decreased significantly whereas sperm motility slightly improved during the 10 days of sperm collection. TSN of ejaculates collected on days 8-10 were averaged to represent DSO (because the extragonadal sperm reserve was then stabilized). The DSO was calculated to 6,0x10 9. Scrotal width and DSO were correlated (r=0,82 p=0,003) as well as total testicular volume and DSO (r=0,87 p=0,001). These results give us valuable information on Swedish half-blood stallions that can be useful in the future breeding management. |
| format | L3 |
| id | RepoSLU12722 |
| institution | Swedish University of Agricultural Sciences |
| language | swe Inglés |
| publishDate | 2005 |
| publishDateSort | 2005 |
| publisher | SLU/Dept. of Obstetrics and Gynaecology |
| publisherStr | SLU/Dept. of Obstetrics and Gynaecology |
| record_format | eprints |
| spelling | RepoSLU127222017-10-19T12:42:42Z Testikelmått och daglig spermieproduktion hos svenska halvblodshingstar Viberg, Frida hingst hästar testikelmått spermieproduktion DSO spermaparametrar Testicular measurements and daily sperm output (DSO) are important factors affecting reproductive capacity of stallions. In the present study testicular measurements of 10 Swedish half-blood stallions were determined (height, length, width and volume). Ejaculates were collected from each stallion once daily for 10 days to evaluate some important seminal characteristics: gel-free ejaculate volume, sperm concentration, percent progressively motile spermatozoa and total number of spermatozoa (TSN). The gel-free ejaculate volume was measured with a graduated cylinder, the sperm concentration was counted in a Bürker chamber, the sperm motility was estimated in a phase-contrast microscope and TSN was determined by multiplying the gel-free seminal volume by the sperm concentration. Testicular measurements were as follows (left and right testis): height 7,5 cm and 7,8 cm, length 10,6 cm and 10,8 cm, width 6,5 cm and 6,6 cm, volume 278,2 cm3 and 293,8 cm3, scrotal width 12,3 cm and total testicular volume 572,0 cm3 . The gel-free ejaculate volume, sperm concentration and total number of spermatozoa decreased significantly whereas sperm motility slightly improved during the 10 days of sperm collection. TSN of ejaculates collected on days 8-10 were averaged to represent DSO (because the extragonadal sperm reserve was then stabilized). The DSO was calculated to 6,0x10 9. Scrotal width and DSO were correlated (r=0,82 p=0,003) as well as total testicular volume and DSO (r=0,87 p=0,001). These results give us valuable information on Swedish half-blood stallions that can be useful in the future breeding management. Testikelstorlek och daglig spermieproduktion (DSO) är viktiga mått för att bedöma en hingsts reproduktionskapacitet. I föreliggande studie mättes testiklarna på 10 svenska halvblodshingstar (höjd, längd, bredd och volym) och ett ejakulat samlades dagligen från var och en av hingstarna under 10 dagar för att bedöma följande spermaparametrar: ejakulatvolym, spermiekoncentration, spermiemotilitet och total antal spermier (TSN). Ejakulatvolymen mättes med mätglas, spermiekoncentrationen räknades i Bürkerkammare, spermiemotiliteten bedömdes i fas-kontrastmikroskop och TSN erhölls genom att multiplicera ejakulatvolymen med spermiekoncentrationen. Resultatet av testikelmätningarna för vänster respektive höger testikel var: höjd 7,5 cm och 7,8 cm, längd 10,6 cm och 10,8 cm, bredd 6,5 cm och 6,6 cm, volym 278,2 cm3 och 293,8 cm3, skrotumbredd 12,3 cm samt total testikelvolym 572,0 cm3 . Ejakulatvolymen, spermiekoncentrationen och TSN sjönk signifikant medan spermiemotiliteten tenderade att stiga under de 10 dagarna av samling. DSO beräknades som medeltal på de dagar då en utplaning av TSN skett, vilket var dag 8-10. DSO beräknades till 6,0x109. Signifikant korrelation förelåg mellan skrotumbredd och DSO och mellan total testikelvolym och DSO (r=0,82 p=0,003 respektive r=0,87 p=0,001). Dessa resultat ger oss värdefull information om svenska halvblodshingstar för det framtida avelsarbetet. SLU/Dept. of Obstetrics and Gynaecology 2005 L3 swe eng https://stud.epsilon.slu.se/12722/ |
| spellingShingle | hingst hästar testikelmått spermieproduktion DSO spermaparametrar Viberg, Frida Testikelmått och daglig spermieproduktion hos svenska halvblodshingstar |
| title | Testikelmått och daglig spermieproduktion hos svenska halvblodshingstar |
| title_full | Testikelmått och daglig spermieproduktion hos svenska halvblodshingstar |
| title_fullStr | Testikelmått och daglig spermieproduktion hos svenska halvblodshingstar |
| title_full_unstemmed | Testikelmått och daglig spermieproduktion hos svenska halvblodshingstar |
| title_short | Testikelmått och daglig spermieproduktion hos svenska halvblodshingstar |
| title_sort | testikelmått och daglig spermieproduktion hos svenska halvblodshingstar |
| topic | hingst hästar testikelmått spermieproduktion DSO spermaparametrar |