About Fen Vet Equine Reproduction

Veterinarian and Owner

Dr. Cody Creelman grew up on a ranch in northern Alberta, where horses were part of daily life. His childhood was spent rodeoing and immersed in western sport, including saddle bronc riding, roping, penning, and steer riding. Those early years shaped both his connection to horses and his understanding of the people who dedicate their lives to them.

During veterinary school, Dr. Creelman originally aspired to become a racetrack veterinarian. As his training progressed, he discovered a genuine appreciation for all areas of veterinary medicine, which ultimately broadened his professional path and led him away from racetrack practice.

In 2019, Dr. Creelman founded Fen Vet with a vision of reimagining the veterinary care experience through strong practice culture and a truly elevated client experience. While growing Fen Vet’s companion animal clinics, he met Dr. Alysson Macedo, whose passion for equine theriogenology was immediately clear. Dr. Macedo had been practicing in the Edmonton area, spending summers focused on equine reproduction and winters working as a small animal locum.

Over time, a shared vision emerged. There was an opportunity to build something special, allowing Dr. Macedo to focus fully on equine reproduction while being based closer to Calgary. Fen Vet Equine Reproduction was the result. While running an equine practice was never part of Dr. Creelman’s original plan, the alignment of talent, passion, and shared values made the decision a natural one.

Fen Vet Equine Reproduction brings Fen Vet’s signature style, attention to detail, and client-first philosophy into the equine reproduction space. The response from the community, the trust of clients, and the success of the program have made it one of the most professionally rewarding ventures of Dr. Creelman’s career.

Diana Creelman, Cody’s wife and a part owner of Fen Vet, grew up in rural communities and was involved in equine 4-H, riding horses from a young age. She has been a constant source of support throughout Fen Vet’s growth and is often seen around the barn during the busiest parts of the season, proudly serving as the unofficial equine semen delivery coordinator and driver when it matters most, all while raising their young family together.

Fen Vet Equine Reproduction exists to support breeders, owners, and horses with care rooted in trust, passion, and genuine connection, and to build a place where talented people get to do the work they truly love every day.

Veterinarian

Originally from Brazil, Dr. Alysson Macedo earned his veterinary degree from Santa Catarina State University in 2013 before beginning his journey in equine reproduction.

In 2014, Dr. Alysson moved to Canada to pursue graduate studies focused on early pregnancy in horses, further strengthening his foundation in reproductive physiology and fertility management. He went on to complete a reproduction-focused internship in the Edmonton area, where he quickly advanced to the role of lead reproduction veterinarian, refining his skills and expertise over three years of dedicated clinical practice. As demand for his services continued to grow, he joined another reproductive practice, where he spent an additional three years solidifying his reputation as a leader in equine reproduction.

Now based in Calgary, Dr. Alysson brings extensive experience in both mare and stallion reproduction, with a special interest in advanced reproductive techniques. He is driven by a commitment to excellence and takes pride in providing the highest standard of care for every client, horse, and breeding program he supports.

When he’s not breeding horses, Dr. Alysson can be found teaching the next generation of veterinarians at the University of Calgary College of Veterinary Medicine, shredding it in the gym, exploring with his dog Arnie, or relaxing with his family.

Veterinarian

Dr. Deanna Larsen grew up in Edmonton and discovered her love for horses as a teenager. She earned her Bachelor of Science in Animal Health from the University of Alberta in 2015, where she was involved in livestock reproduction research and developed a lasting fascination with reproductive physiology.

She went on to complete her Doctor of Veterinary Medicine at the Western College of Veterinary Medicine in 2019, followed by a year-long large animal rotating internship at the same institution. During this time, she gained additional experience in equine reproduction, internal medicine, surgery, and ambulatory care. In addition to reproduction, her professional interests include neonatal care, preventative medicine, dentistry and internal medicine.

For the past five years, Deanna has been practicing in the Carstairs area, providing dedicated care to equine patients and working closely with owners through the breeding process. One of the most meaningful aspects of Dr. Larsen’s work is building relationships with clients and being a trusted part of their horses’ care over time. She also finds great fulfillment in seeing reproductive cases come full circle, from working with the stallions and mares, to meeting the foals and watching them grow.

She looks forward to another year of helping clients achieve their breeding goals with the Fen Vet Equine Reproduction team.

Outside of the clinic, Deanna enjoys spending time with her young horse, Trebella, and exploring with her dog, Noodle. When she’s not in the barn or on the trail, she can often be found relaxing with a book and a glass of wine.

Veterinarian

Dr. Don Miller, a distinguished figure in the world of veterinary medicine with a lifelong commitment to advancing reproductive techniques in both cattle and horses. Born and raised in Saskatoon, Dr. Miller’s journey in veterinary science began at the esteemed University of Saskatchewan and continued at the Western College of Veterinary Medicine, where he earned his BSc., DVM, and MVSc. degrees.

Dr. Miller’s Master of Veterinary Science degree focused on breeding soundness in both cattle and horses, laying the foundation for his groundbreaking work in assisted reproductive techniques. Since graduating, he has dedicated his veterinary practice to pioneering advancements in this field, witnessing remarkable transformations in the industry over the years.

From the early days of complete surgical procedures requiring general anesthesia to the present-day non-surgical approaches, Dr. Miller has been at the forefront of innovation. He has witnessed the evolution of reproductive techniques with cattle, from traditional methods to the widespread use of cooled and frozen semen, embryo transfer, and even cutting-edge techniques like IVF and ICSI.

In 1985, Dr. Miller founded Sundown Livestock Transplants, a pivotal moment that marked the beginning of his influential career in equine reproductive work. By 1992, he expanded his focus to include importing semen from the USA and providing comprehensive breeding and embryo transfer services to horse owners in western Canada.

Throughout the early 2000s, Dr. Miller and his family played a crucial role in the Calgary Stampede’s renowned “Born To Buck” program. Hosting the elite bucking string at their Cremona facility, along with the legendary six-time world champion bareback stallion, G-65 Grated Coconut, they contributed to the creation of offspring that continue to dominate the rodeo arena and breeding pastures today.

Dr. Miller resides with his family at the Cremona location, where both of his sons are deeply involved in the livestock industry. One son excels as a professional tie-down roper, farrier, and horse trainer, while the other thrives as a cattle breeder, livestock marketer, and respected cattle judge.

Dr. Miller eagerly anticipates the 2026 season. With his wealth of experience and unwavering dedication to excellence, he looks forward to offering his services and expertise to help achieve the clinic’s goal of providing quality care and breeding success to clients.

Breeding Logistics Manager

Alana Switzer grew up immersed in the equine industry and has dedicated her career to equine reproduction. She brings 11 years of experience within the veterinary industry, specializing in equine reproduction, including 10 years as a Breeding Logistics Manager.

Alana is deeply passionate about the science and precision behind equine reproduction, with the most rewarding aspect of her work being the opportunity to witness embryos come full circle, from early development to healthy foals on the ground. As one of the resident stallion handlers, she takes pride in providing exceptional stallion services and supporting breeders through reliable, high-quality services.

Outside of work, Alana travels the rodeo trail with her husband, Chanse, and their three dogs, continuing to live the lifestyle that helps shape her connection to the equine industry.

Registered Veterinary Technician

Dayle Kralik-Sampson is a Registered Veterinary Technologist with over eight years of experience in the equine reproduction field. Following the completion of her Veterinary Technician training, Dayle furthered her knowledge and skills, completing the Equine Reproduction Technician program at Olds College.

Since joining Fen Vet Equine Reproduction in 2024, Dayle has become an integral member of the team, taking primary responsibility for semen handling and processing, as well as oocyte handling, helping ensure the precision and care required for successful reproductive outcomes. She thoroughly enjoys all aspects of equine reproduction but has a keen interest in mare management and foaling.

During the off-season, Dayle also works as a small animal RVT within the Fen Vet clinics, allowing her to stay actively involved across multiple areas of veterinary medicine. Outside of work, Dayle enjoys spending time outdoors, being with her daughter, and caring for her animals.

Registered Veterinary Technician and Clinic Manager

Stacey is the equine division’s team lead at Fen Vet, where her primary focus is supporting her team to deliver exceptional medicine and customer service. With over a decade of experience as a Registered Veterinary Technician (RVT) and several years in leadership roles, Stacey’s expertise lies in fostering a collaborative and efficient work environment.

While not directly managing the medical aspects of equine reproduction, Stacey ensures that her team has the resources and support they need to excel. From stepping in with hands-on help—whether in technical procedures, administration, or barn care— Stacey’s leadership is grounded in adaptability and teamwork. Her dedication to empowering others and prioritizing excellence makes her a cornerstone of Fen Vet’s equine division.

Reproduction Technician and Marketing Manager

Kelly is entering her third season with Fen Vet Equine Reproduction, where she serves as a Reproduction Technician. With eight years of experience in the veterinary industry, she plays an integral role in all aspects of the reproductive program, including assisting with breedings, assisting with managing mares throughout their cycles, assisting with stallion collections and semen processing, maintaining the highest standards of clinic operations, and supporting the team in every facet of daily operation. She takes particular pride in cultivating strong relationships with clients and witnessing the excitement of new foals arriving each spring.

In addition to her hands-on equine work, Kelly oversees the social media presence for both the reproduction team and Fen Vet’s small animal clinic, curating educational content, program updates, and clinic highlights to engage and inform the community. During the off-season, she continues to support the Beltline clinic team, providing operational assistance while managing their social media initiatives.

Outside of work, Kelly enjoys riding her horse and hunting with her dogs, combining her love of animals with her passion for the outdoors. Her dedication to veterinary medicine and equine reproduction reflects her commitment and her passion for helping clients achieve their breeding goals while ensuring the highest standard of care.

Client Care Coordinator

Corissa Boychuk brings over 16 years of experience in client communications within the veterinary industry, having worked in the large animal field since 2009. Her background reflects a deep understanding of both client needs and the unique demands of equine veterinary medicine.

She has been part of the Fen Vet Equine Reproduction team for the past two years and is often the welcoming voice clients first connect with. Corissa specializes in client communication and coordination, helping bridge the gap between clients and veterinarians by addressing questions, managing intakes and bookings, coordinating semen procurement, and guiding owners through each step of the reproductive process. She supports the administrative details that keep cases running smoothly, ensuring clear communication, organization, and a positive client experience from start to finish.

While clients may not always see Corissa on-site, she remains readily available as a primary point of contact. She plays a key role behind the scenes, ensuring questions are answered, information is relayed efficiently, and clients feel supported and connected throughout their experience with Fen Vet Equine Reproduction.

Client Care Coordinator and Accounting

Cora Thiessen joined the Fen Vet team in 2021, beginning in small animal reception before moving into HR-focused roles, where she developed a deeper understanding of clinic workflow, team support, and client service.

In 2024, Cora began supporting the equine reproduction department with accounting and accounts receivable, and in 2025 she transitioned into a virtual role supporting clinic operations. In this position, she plays a key role in supporting both clients and the clinical team, helping ensure smooth operations, clear communication, and accurate account management behind the scenes.

Originally from Ireland, Cora has been living in Canada for the past 15 years. Outside of work, she enjoys spending time outdoors and in nature with her two dogs and her family.