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The spatio-temporal distribution of aromatase cytochrome in ovary throughout the canine oestrous cycle
CONCLUSIONS AND IMPLICATIONS: Understanding of cells involved in oestradiol production is important for targeted inhibition of oestradiol synthesis, possibly offering an approach for contraception and suppression of oestrus.PMID:38484784 | DOI:10.1071/RD23201 (Source: Reproduction, Fertility, and Development)
Source: Reproduction, Fertility, and Development - March 14, 2024 Category: Reproduction Medicine Authors: L Lindh M P Kowalewski S K Goericke-Pesch H Lindeberg G Schuler O A T Peltoniemi Source Type: research

The future of equine semen analysis
This article provides a brief overview of recent advances in the field of spermatology and how they are changing assessment of sperm quality. This article is written from the authors' perspective, using the stallion as a model. We aim to portray a brief overview of the changes occurring in the assessment of sperm motility and kinematics, advances in flow cytometry, implementation of 'omics' technologies, and the use of artificial intelligence/self-learning in data analysis. We also briefly discuss how some of the advances can be readily available to the practitioner, through the implementation of 'on-farm' devices and tele...
Source: Reproduction, Fertility, and Development - March 11, 2024 Category: Reproduction Medicine Authors: Fernando J Pe ña Francisco Eduardo Mart ín-Cano Laura Becerro-Rey Cristina Ortega-Ferrusola Gemma Gaitskell-Phillips Eva da Silva- Álvarez Mar ía Cruz Gil Source Type: research

Antibiotics in semen extenders - a multiplicity of paradoxes
Reprod Fertil Dev. 2024 Mar 7. doi: 10.1071/RD23218. Online ahead of print.ABSTRACTAddition of antibiotics to semen extenders was taken for granted for many years, from the time that commercial artificial insemination in livestock first began many decades ago. However, there is now a growing realisation that this non-therapeutic utilisation of antibacterial agents is contrary to current recommendations for prudent use that medical and veterinary professionals are advised to follow. Furthermore, antibiotics are not benign, having negative effects on sperm samples, the inseminated female, personnel and potentially the enviro...
Source: Reproduction, Fertility, and Development - March 6, 2024 Category: Reproduction Medicine Authors: Jane M Morrell Aleksandar Cojkic Pongpreecha Malaluang Theodoros Ntallaris Johanna Lindahl Ingrid Hansson Source Type: research

The case for considering the term 'mitochondrial vesicle' as a misnomer in publications about assisted reproductive technologies (ART) for amphibians
Reprod Fertil Dev. 2024 Feb 28. doi: 10.1071/RD24014. Online ahead of print.ABSTRACTThe term 'mitochondrial vesicle' was first used in 2003 in a description of anuran sperm and persists to this day throughout the literature on assisted reproductive technologies (ART) for amphibians. In the present paper, we argue that the term is inappropriate because the widely accepted definition of a 'vesicle' refers to an integral structure with an enclosing lipid bilayer/membrane. Moreover, there are no electron micrographs that show a vesicular structure encapsulating mitochondria on amphibian sperm heads in the literature. In fact, ...
Source: Reproduction, Fertility, and Development - February 27, 2024 Category: Reproduction Medicine Authors: Robert K Browne Govindappa Venu Svetlana A Kaurova Source Type: research