All Outputs (4)

Temporal trends in equine sperm progressive motility: a systematic review and meta-regression (2023)
Journal Article
Harris, I. T., Maddock, C., Farnworth, M., Nankervis, K., Perrett, J., Pyatt, A. Z., & Blanchard, R. N. (2023). Temporal trends in equine sperm progressive motility: a systematic review and meta-regression. Reproduction, 165(6), M1–M10. https://doi.org/10.1530/REP-22-0490

In brief: Adverse trends in reproductive function are a concern in humans, companion, livestock, and wildlife species. This study indicates that equine populations are at risk of a comparable decline in sperm progressive motility. Abstract: There is... Read More about Temporal trends in equine sperm progressive motility: a systematic review and meta-regression.

Systematic Analysis of Breed, Methodological, and Geographical Impact on Equine Sperm Progressive Motility (2021)
Journal Article
Perrett, J., Harris, I. T., Maddock, C., Farnworth, M., Pyatt, A. Z., & Sumner, R. N. (2021). Systematic Analysis of Breed, Methodological, and Geographical Impact on Equine Sperm Progressive Motility. Animals, 11(11), Article 3088. https://doi.org/10.3390/ani11113088

Over the past five decades, there has been increasing evidence to indicate global declines in human semen quality. Parallel adverse trends measured in male animals indicate a potential environmental aetiology. This study evaluated the progressive mot... Read More about Systematic Analysis of Breed, Methodological, and Geographical Impact on Equine Sperm Progressive Motility.

Environmental chemicals in dog testes reflect their geographical source and may be associated with altered pathology (2021)
Journal Article
Sumner, R. N., Byers, A., Zhang, Z., Agerholm, J. S., Lindh, L., England, G. C. W., & Lea, R. G. (2021). Environmental chemicals in dog testes reflect their geographical source and may be associated with altered pathology. Scientific Reports, 11, Article 7361. https://doi.org/10.1038/s41598-021-86805-y

In humans and dogs, a temporal decline in semen quality and increased incidence of testicular cancer is hypothesised to be associated with exposure to anthropogenic chemicals, particularly during fetal development. Human studies suggest that differen... Read More about Environmental chemicals in dog testes reflect their geographical source and may be associated with altered pathology.

Environmental chemicals impact dog semen quality in vitro and may be associated with a temporal decline in sperm motility and increased cryptorchidism (2016)
Journal Article
Lea, R. G., Byers, A. S., Sumner, R. N., Rhind, S. M., Zhang, Z., Freeman, S. L., …England, G. C. (2016). Environmental chemicals impact dog semen quality in vitro and may be associated with a temporal decline in sperm motility and increased cryptorchidism. Scientific Reports, 6(1), Article 31281. https://doi.org/10.1038/srep31281

Adverse temporal trends in human semen quality and cryptorchidism in infants have been associated with exposure to environmental chemicals (ECs) during development. Here we report that a population of breeding dogs exhibit a 26 year (1988–2014) decli... Read More about Environmental chemicals impact dog semen quality in vitro and may be associated with a temporal decline in sperm motility and increased cryptorchidism.