Our Team

Introducing Our Stellar Team at Sunshine Genetics

At Sunshine Genetics, we are eagerly anticipating the opportunity to assist you with all your genetics requirements. Our team comprises a diverse range of experts, including dedicated Veterinarians, proficient Office Staff, skilled Embryologists, and diligent Farm Staff. Rest assured, our team is not just exceptional but truly committed to providing you with unparalleled support and service here at Sunshine Genetics.



Greg Schueller, Owner/Veterinarian

Dr. Greg Schueller grew up on a dairy farm in southwest Wisconsin and graduated from the University of Wisconsin School of Veterinary Medicine in 1991.  Upon graduation, he joined and later became a partner in a mixed animal practice in Hazel Green Wisconsin where he specialized in dairy reproduction and herd health.  In 2009, Greg left the group practice in Hazel Green to join Sunshine Genetics, becoming a partner in 2012.  Greg attributes the growth and success at Sunshine Genetics to Chris and Dan establishing a strong business foundation and great support staff.  In 2009, when Greg started at Sunshine Genetics, IVF and genomics were in the early stages of adaptation and he was able to facilitate the growth of the business through OPU and IVF embryo production.  Greg’s family has been supportive as he followed his passion for helping clients reach their genetic goals.  He and his wife Marcia are very proud of their 3 adult daughters: Brianna, Kailyn, and Melia.  When not working or building something, Greg enjoys spending time with his family, travelling, water sports, hiking and camping.

Aaron Prososki, Owner/Veterinarian

Dr. Aaron Prososki is a 2016 graduate of the University of Wisconsin School of Veterinary Medicine and joined Sunshine Genetics immediately following school, becoming a partner in 2019. Dr. Prososki grew up in the small town of Birnamwood, WI, often traveling with his parents, both Veterinarians, to client farms. His passion for ET came from his experiences helping his dad with his established ET practice. As genomics became an integral part of the dairy industry, he quickly found interest in studying donor pedigrees and sires. His favorite aspects are conventional flushing and marketing/promoting client embryos to international markets. He and his wife Bria, a family medicine physician, have 3 children - twin boys, Henry and Theo, and a daughter, Leighton. His hobbies include spending all his free time with his children as well as hunting, fishing, and four wheeling.

Dan Hornickel, Emeritus Veterinarian)

Dr. Dan Hornickel is a graduate of the University of Illinois College of Veterinary Medicine. Dan retired in 2017 with 40 years of experience in the ET industry. He and his wife, Connie, have 2 daughters and 3 grandsons. They enjoy golf, biking and travel in their free time as well as spending the winters at their second home in Arizona.

Chris Keim, Emeritus Veterinarian

Dr. Chris Keim is a graduate of the University of Illinois College of Veterinary Medicine. Chris retired in 2017 with 40 years of experience in the ET industry. He and his wife, Ann, have two daughters, a son, and four grandchildren. They enjoy golf, geneology, and travel.

Office Staff


Karen Marsh, Export Coordinator/Donor Management

Karen obtained her bachelors degree from UW-Madison and joined Sunshine Genetics in 1989. She grew up not far from Sunshine on a registered Holstein farm in Palmyra, WI. She and her husband, Mike, enjoy going on motorcycle trips, relaxing by the pool with friends, and spending time with their grandkids.

Stacey Henneman, Client Communications

Stacey received her bachelor’s degree in Animal Science from UW-River Falls and joined Sunshine Genetics in 1996. She grew up on a dairy farm in Southwest Wisconsin and has a daughter, Jaden, who just graduated form UW-Madison. Outside of work, she enjoys working out, motorcycle trips, hanging out with friends and playing euchre. 



Emma Acker, In Vivo Lab Manager/Lead Embryologist

Emma obtained her bachelor’s degree in Biology and Animal Science UW-Platteville and joined Sunshine Genetics in 2020. She grew up on a hobby farm outside of Belmont, WI, where she enjoyed many different species of animals. In her free time she enjoys hanging out with her friends, family, dogs Zeus and Rusty at their weekly happy hour at the dog park, and her husband, Joey.

Meghan La Crosse, Donor Management/Embryologist

Meghan obtained her bachelor’s degree from Iowa State University in Agricultural Biochemistry with a minor in Animal Science and joined Sunshine Genetics in 2022. She grew up in Door County, WI, where her family operates a small dairy of registered Holsteins in a tie stall barn. During her free time she enjoys hunting, traveling, and spending time with friends and family.

Marisa Haberman, IVF Lab Director

Marisa earned her bachelor’s degree in Biochemistry with minors in Mathematics and Psychology from Viterbo University. She joined Sunshine Genetics in 2023 having prior IVF experience and grew up just outside of Fond du Lac, WI, but currently resides in Janesville. In her free time she enjoys fishing, camping, and spending time with her niece and nephews.

Miranda Menze, Embryologist

Miranda earned her bachelor’s degree in Animal Science from UW-Madison and joined Sunshine Genetics in 2023. She grew up in a small town in northern Wisconsin and has experience in a variety of specialty Veterinary clinic as well as currently being a member of the Wisconsin Army National Guard as a sergeant in field artillery. Her hobbies include spending time outdoors and traveling to national parks to hike, backpack, and mountain bike.

Farm Staff


Alan Runde, Farm Manager

Alan earned his Associate degree in HVAC and joined Sunshine Genetics in 2022. He has 20+ years experience in row crop and livestock management. Alan has been married for 12 years and has 3 children. In his free time, Alan enjoys shooting trap, watching college sports, hiking, swimming, and wood working with his family.

Kerry Eiler, Herdsman

Kerry is a proud graduate of Argos Community School and joined Sunshine Genetics in 2016. He has a wealth of experience in a multitude of fields, finally settling on his passion with cattle which started at an early age as he grew up on a small dairy farm in north central Indiana. He enjoys spending his free time working with the FFA and 4H youth, raising small flock of club lambs, and an avid supporter of all Purdue sports.