Advances and Applications for Improvement of Reproductive Function and Fertility in Dogs
A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Animal Reproduction".
Deadline for manuscript submissions: 31 January 2026 | Viewed by 8
Special Issue Editor
Special Issue Information
Dear Colleagues,
The reproductive physiological characteristics of female dogs are unique. As they are monoestrous animals, they have a long estrous cycle, so if they become infertile once, the possibility of next pregnancy is significantly delayed. In addition, the period from the start of estrus to ovulation is long, and dog ova are ovulated in an immature state and mature in the oviduct. The optimal mating period is 48 hours after the ova have matured, but due to the characteristics of dog sperm, the fertile period is very long, namely 7 days. Due to this, infertility is rare, but if mating is not carried out at the appropriate time, the number of offspring may be low. On the other hand, artificial insemination is widely used because semen can be easily collected from male dogs; however, artificial insemination using frozen semen is still problematic in dogs compared to other mammals because dog sperm has a relatively low freeze resistance and a short lifespan. There is still much room for research on this topic.
Various examinations and assisted reproductive techniques are sometimes applied to improve the reproductive function and fertility rate in dogs. Taking into account the above-mentioned reproductive physiological characteristics of dogs, examinations and techniques specific to dogs that are different from other mammals may be performed. This area of research is of particular interest and is considered useful to many dog breeders.
This Special Issue aims to publish any study that may be of clinical use in improving reproductive function and fertility in dogs.
Prof. Dr. Tatsuya Hori
Guest Editor
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Keywords
- female dog
- male dog
- assisted reproductive technologies
- frozen semen
- artificial insemination
- optimal mating period
- sperm quality
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