BioChill 10-Day Canine Semen Extender (20mL)

Extend and protect chilled canine semen for up to 10 days with BioChill 10-Day extender. This animal-protein-free medium shields sperm cells from temperature swings during shipping, prevents oxidative stress, and neutralizes the metabolites that degrade semen quality — preserving a high percentage of initial motility through transport. It's the trusted choice for breeders shipping valuable bully studs across the country or holding a collection while a female finishes her progesterone rise. Easy to mix and ready to use. Pair it with our Breeders Box shipping kit for reliable door-to-door results.