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Lau, Angus, 2021. Semen quality of the Bernese Mountain Dogs in Sweden. Second cycle, A2E. Uppsala: SLU, Dept. of Clinical Sciences

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Abstract

This study aimed to have a better understanding of the semen quality of the Bernese mountain dog population in Sweden. Semen and blood samples were collected from 65 male Bernese mountain dogs, both breeding dogs and dogs not intended for breeding. Examination of testicles and prostates were also performed. Semen analysis revealed that sperm motility was negatively associated with age (p=0.049). Percentages of detached heads (p=0.004) and proximal cytoplasmic droplets (p=0.009) were positively associated with age. Percentages of pathological heads (p=0.002), proximal cytoplasmic droplets (p=0.008), knobbed acrosomes (p=0.008) and vacuoles (p=0.004) were significantly higher in dogs with abnormal testicle consistency. The percentage of morphologically normal sperm (p<0.001) and the number of live morphologically normal sperm (p=0.034) were significantly lower in dogs with abnormal testicle consistency (p<0.001). For dogs that had been breeding, sperm motility was significantly higher among those with offspring than those without (p=0.013).

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Denna studie syftade till att få en helhetsbild av spermakvaliteten hos berner sennenhundar i Sverige. Spermaprov och blodprov samlades in från 65 berner sennenhundar, både avelshundar och hundar som inte gick i avel. Undersökning av testiklar och prostata utfördes också. Resultatet visade ett negativt samband mellan spermiernas rörlighet och ålder (p=0,049). Procentandelen lösa huvuden (p=0,004) och proximala cytoplasmatiska droppar (p=0,009) visade positiva samband med åldern. Procentandelen patologiska huvuden (p=0,002), proximala cytoplasmatiska droppar (p=0,008), specifik akrosomdefekt (p=0,008) och kärnsäckar (p=0,004) var signifikant högre hos hundar med onormala testikelkonsistens. Andelen morfologiskt normala spermier (p<0,001) och antalet rörliga morfologiskt normala spermier (p=0,034) var signifikant lägre hos hundar med onormal testikelkonsistens. Hos avelshundarna var spermiernas rörlighet signifikant högre bland de med avkomma än de utan (p=0,013).

Main title:Semen quality of the Bernese Mountain Dogs in Sweden
Authors:Lau, Angus
Supervisor:Ström Holst, Bodil and Hallberg, Ida
Examiner:Axner, Eva
Series:UNSPECIFIED
Volume/Sequential designation:UNSPECIFIED
Year of Publication:2021
Level and depth descriptor:Second cycle, A2E
Student's programme affiliation:VY002 Veterinary Medicine Programme 330 HEC
Supervising department:(VH) > Dept. of Clinical Sciences
Keywords:Semen quality, sperm defect, Bernese mountain dog, sperm morphology
URN:NBN:urn:nbn:se:slu:epsilon-s-16913
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-s-16913
Subjects:Animal physiology - Reproduction
Language:English
Deposited On:01 Jul 2021 10:21
Metadata Last Modified:02 Jul 2021 11:49

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