Sperm-Up: Increase Sperm Count in Stud Dogs, from CNI.
"SPERM-UP is our proprietary blend of a special preparation of Bulgarian Tribulus Terrestris concentrate, vitamins, chelated minerals and tasty meat powders and fats. Tribulus is a research proven spermatogenic agent and the beneficial effects of this product are well documented amongst dog breeders. Now your stud dog can produce good litters well beyond the time that most dogs must be retired. Contact us for testimonials! Sperm-Up comes in a nitrogen-flushed, vacuum sealed bag for complete freshness. The 1.35 pound contents of this bag represents a 30 day supply for most 30-60 lb dogs"