Dr. Greg Burns, DVM joins us to discuss multiple-sired litters, from what causes it to why breeders might want to use it to their advantage! Dr. Greg Burns is a board-certified theriogenologist (reproductive specialist) and is currently an assistant professor at Colorado State University. Have a question you'd like us to answer on the air? Submit a question through this form!Enjoy the best of Good Dog from the palm of your hand with the Good Breeder Mobile App! Good Breeders can use the mobile app to seamlessly and easily manage their programs on the go, whether you’re shuttling puppies to vet appointments, or coordinating airport pickups, you never have to worry about missing a second of managing your program. Not a member of Good Dog yet? Join today.