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Companion Animal Theriogenology
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Companion Animal Theriogenology

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Companion Animals".

Deadline for manuscript submissions: closed (28 February 2026) | Viewed by 1995

Special Issue Editors

Dr. Pagona G. Gouletsou

E-Mail Website
Guest Editor
Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Karditsa, Greece
Interests: ultrasonography of the reproductive system; andrology; surgery of the reproductive system; cytology of the testis; wound healing
Dr. Marianna S. Barbagianni

E-Mail Website
Guest Editor
Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, Karditsa, Greece
Interests: radiology and ultrasonography; mammary diseases; embryonic development; embryonic programming and intra-uterine restricted growth

Special Issue Information

Dear Colleagues,

Theriogenology is a cornerstone of veterinary medicine that has a profound impact on reproductive efficiency, health and welfare in companion animals. Research in this field contributes to the well-being of animals by ensuring healthy reproductive practices. Therefore, there is a clear interest in improving the knowledge in this field of veterinary medicine.

This Special Issue will cover studies regarding breeding efficiency, physiological and pathological processes in reproduction, contraception, pregnancy and parturition, advanced reproductive technologies, including diagnostic, therapeutic, surgical and anaesthetic techniques, andrology, diseases of the reproductive system of the female and the male, diseases of the mammary gland, new insights on therapeutics, and infertility of the companion animals. Studies relevant to the development of reproductive technologies, including in vitro oocyte maturation, in vitro fertilization, and embryo culture, are included in the scope of this Special Issue. Papers on the control of infectious diseases will receive particular attention.

This Special Issue welcomes research articles, reviews, and case reports. This Special Issue will accept original manuscripts describing experimental work in clinical cases or laboratory animals. Systematic and narrative reviews will be evaluated. Clinical reports will need to underline the peculiarity and uniqueness of the case reported.

The papers published in this Special Issue will complement existing research and clinical work in the field of companion animals’ theriogenology and should contribute to scientific innovation and to the progress of research.

We look forward to receiving your contributions.

Dr. Pagona G. Gouletsou
Dr. Marianna S. Barbagianni
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Animals is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • breeding efficiency
  • physiological and pathological processes
  • contraception
  • pregnancy and parturition
  • reproductive technologies
  • diagnostic and therapeutic techniques
  • andrology
  • diseases of the reproductive system and the mammary gland
  • infertility
  • companion animals

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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Research

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17 pages, 334 KB  
Article
Intraoperative Music During General Anaesthesia in Dogs Undergoing Elective Ovariohysterectomy: A Prospective, Double-Blinded Randomized Exploratory Study
by Stefanos G. Georgiou, Pagona G. Gouletsou, Eleftheria Dermisiadou, Tilemachos L. Anagnostou, Aikaterini I. Sideri and Apostolos D. Galatos
Animals 2026, 16(1), 29; https://doi.org/10.3390/ani16010029 - 22 Dec 2025
Viewed by 756
Abstract
Music is considered a non-pharmacological adjunct in human anaesthesia, contributing to anaesthetic- and analgesic-sparing effects, modulating autonomic responses, and enhancing recovery. However, its effects in veterinary surgical settings remain largely unexplored. This study aimed to explore the potential influence of intraoperative music on [...] Read more.
Music is considered a non-pharmacological adjunct in human anaesthesia, contributing to anaesthetic- and analgesic-sparing effects, modulating autonomic responses, and enhancing recovery. However, its effects in veterinary surgical settings remain largely unexplored. This study aimed to explore the potential influence of intraoperative music on anaesthetic and analgesic requirements, autonomic parameters, intraoperative adverse effects, and recovery quality in dogs undergoing elective ovariohysterectomy under general anaesthesia. In this prospective, randomized exploratory study, client-owned female dogs (n = 28) were randomly assigned to either a music group (exposed to instrumental classical music intraoperatively) or a control group (no music). All dogs received a standardized anaesthetic protocol. Mean end-tidal isoflurane concentrations, intraoperative analgesic requirements, heart rate, respiratory rate, blood pressure, adverse effects, and recovery quality were recorded and compared between groups using unpaired t-test, Mann–Whitney U test, or Fisher’s exact test, as appropriate (p < 0.05). No statistically significant differences were observed. Therefore, intraoperative music did not produce measurable effects on the assessed parameters. While no apparent benefit was observed in this study, future studies with larger sample sizes should investigate music-based interventions in more challenging or variable clinical scenarios. Additionally, further research is needed to clarify the extent to which anaesthetics suppress auditory processing. This exploratory investigation contributes to the limited body of evidence on auditory stimulation in veterinary anaesthesia. Full article
(This article belongs to the Special Issue Companion Animal Theriogenology)

Review

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19 pages, 2564 KB  
Review
Clinical Management of Testicular Tumors in Dogs
by Maria Pereira, Koray Tekin, Malena Perez, Kurt de Cramer and Stefano Romagnoli
Animals 2026, 16(8), 1202; https://doi.org/10.3390/ani16081202 - 15 Apr 2026
Viewed by 545
Abstract
Testicular tumors are the most common neoplasms of the canine male reproductive tract, corresponding to approximately 25% of all tumors in intact males. A large percentage of cases are characterized by one of three main tumor types: seminomas, interstitial Leydig cell tumors, or [...] Read more.
Testicular tumors are the most common neoplasms of the canine male reproductive tract, corresponding to approximately 25% of all tumors in intact males. A large percentage of cases are characterized by one of three main tumor types: seminomas, interstitial Leydig cell tumors, or Sertoli cell tumors. Clinical importance is primarily associated with endocrine activity rather than malignant behavior; orchiectomy is the treatment of choice for most canine testicular cancers. Endocrine activity, particularly estrogen secretion, may result in feminization syndrome and, in severe cases, bone marrow suppression. The diagnostic approach combines physical examination, ultrasonography with hormonal assessment using endocrine testing (testosterone, estradiol, and T:E ratio), and/or tissue level evidence of the estrogen effect (preputial cytology). Management is centered on orchiectomy; unilateral surgery may be considered when the contralateral testis is clinically and ultrasonographically normal and when preservation of reproductive capacity or working ability is still a priority. Dogs with hormonally active tumors benefit from postoperative hematologic and endocrine monitoring. Recent advances in immunohistochemistry (IHC), such as Ki-67 and inhibin-α markers, and imaging techniques are improving tumor characterization and individualized clinical decision making. Full article
(This article belongs to the Special Issue Companion Animal Theriogenology)
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