{"product_id":"bullgen™-10-day-canine-semen-extender-professional-chilled-semen-preservation","title":"BullGen™ 10-Day Canine Semen Extender | Professional Chilled Semen Preservation","description":"\u003cdiv class=\"product-description\"\u003e\n\n  \u003ch2\u003ePreserve Motility. Protect Fertility. Ship With Confidence.\u003c\/h2\u003e\n\n  \u003cp\u003eYou've spent months planning this breeding. You've tested progesterone, confirmed ovulation, timed the collection — and now everything depends on what happens to the semen in the next 10 days. The extender you choose is the difference between viable sperm arriving at the female and a compromised sample that never had a chance.\u003c\/p\u003e\n\n  \u003cp\u003eBullGen™ 10-Day Canine Semen Extender is a professional-grade preservation medium formulated to keep semen viable, motile, and fertile from collection to insemination — whether you're shipping domestic or international, same-day or across the week.\u003c\/p\u003e\n\n  \u003chr\u003e\n\n  \u003ch2\u003eWhat BullGen™ 10-Day Extender Does\u003c\/h2\u003e\n\n  \u003cul\u003e\n    \u003cli\u003ePreserves semen \u003cstrong\u003eviability, motility, and fertility for up to 10 days\u003c\/strong\u003e under refrigeration\u003c\/li\u003e\n    \u003cli\u003eAnimal-protein-free formula eliminates contamination and pathogen transmission risk\u003c\/li\u003e\n    \u003cli\u003eAntioxidants neutralize reactive oxygen species (ROS) that damage sperm DNA and membranes during storage\u003c\/li\u003e\n    \u003cli\u003eBuffering agents maintain optimal pH for the duration of storage\u003c\/li\u003e\n    \u003cli\u003eReduces oxidative stress during cooling and temperature fluctuation\u003c\/li\u003e\n    \u003cli\u003eProvides essential nutrients that sustain sperm energy reserves through transport\u003c\/li\u003e\n    \u003cli\u003eReady-to-use — no mixing, no dilution\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch2\u003eWho It's For\u003c\/h2\u003e\n\n  \u003cp\u003eBullGen™ 10-Day Extender is built for breeders who use chilled semen AI — whether you're the stud dog owner shipping a collection across the country, or the female owner receiving and inseminating. It's designed for:\u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eEnglish Bulldog, French Bulldog, and American Bully breeders using chilled AI\u003c\/li\u003e\n    \u003cli\u003eCanine reproduction vets and technicians\u003c\/li\u003e\n    \u003cli\u003eStud dog owners with regular semen shipment programs\u003c\/li\u003e\n    \u003cli\u003eBreeders working with dogs in remote locations where same-day breeding isn't possible\u003c\/li\u003e\n    \u003cli\u003eInternational semen shipments requiring extended viability\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch2\u003eHow to Use BullGen™ 10-Day Extender\u003c\/h2\u003e\n\n  \u003col\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCollect semen\u003c\/strong\u003e using standard canine collection technique. Separate the sperm-rich fraction.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEvaluate for motility\u003c\/strong\u003e and count prior to extension.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAdd BullGen™ 10-Day Extender\u003c\/strong\u003e to the collected sperm-rich fraction at your target dilution ratio (typically 1:1 to 2:1 extender:ejaculate depending on concentration).\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGently mix\u003c\/strong\u003e by inversion — do not vortex or agitate aggressively.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEvaluate post-extension motility\u003c\/strong\u003e before packaging for shipment.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePackage in chilled semen canister or shipping box\u003c\/strong\u003e with appropriate cooling media (Uni-Cool or equivalent). Maintain 4–5°C throughout transport.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInseminate on the receiving end\u003c\/strong\u003e using vaginal AI or TCI. For best results, use BullGen™ Semen Enhancer immediately before insemination.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003chr\u003e\n\n  \u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eBullGen™ 10-Day Canine Semen Extender — ready-to-use liquid formulation\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003e\u003cem\u003eAvailable in single-use and multi-use volumes. See product options above.\u003c\/em\u003e\u003c\/p\u003e\n\n  \u003chr\u003e\n\n  \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n  \u003ch3\u003eCan I use BullGen™ 10-Day Extender with any breed?\u003c\/h3\u003e\n  \u003cp\u003eYes. BullGen™ 10-Day Extender is formulated for canine semen across all breeds. It is particularly popular among English Bulldog, French Bulldog, and American Bully breeders who routinely use chilled AI due to natural breeding limitations in brachycephalic breeds.\u003c\/p\u003e\n\n  \u003ch3\u003eDoes it really keep semen viable for 10 days?\u003c\/h3\u003e\n  \u003cp\u003eThe 10-day window reflects the maximum viability achievable under optimal conditions — consistent refrigeration at 4–5°C, proper collection, and appropriate dilution ratios. Many breeders achieve excellent motility at 5–7 days. Results vary based on the individual dog's semen quality at the time of collection.\u003c\/p\u003e\n\n  \u003ch3\u003eIs it animal-protein-free? Why does that matter?\u003c\/h3\u003e\n  \u003cp\u003eYes. Traditional extenders often use egg yolk as a protein source, which carries a contamination risk and can introduce foreign proteins that may affect fertility in some females. BullGen™ 10-Day Extender uses synthetic alternatives, eliminating that risk entirely.\u003c\/p\u003e\n\n  \u003ch3\u003eDo I need to use BullGen™ Semen Enhancer as well?\u003c\/h3\u003e\n  \u003cp\u003eThe 10-Day Extender and Semen Enhancer serve different purposes. The extender is for storage and transport. The enhancer is used immediately before insemination to maximize progressive motility at the time of breeding. Used together as part of the complete BullGen™ system, they cover the full reproductive protocol from collection to insemination.\u003c\/p\u003e\n\n  \u003ch3\u003eHow should I store unopened BullGen™ 10-Day Extender?\u003c\/h3\u003e\n  \u003cp\u003eStore at 4–8°C (refrigerated) away from direct light. Do not freeze. Use before the expiration date printed on the label. Once opened, follow label instructions for storage and use-by timing.\u003c\/p\u003e\n\n  \u003chr\u003e\n\n  \u003cp\u003e\u003cstrong\u003eReady to upgrade your chilled semen protocol?\u003c\/strong\u003e The BullGen™ 10-Day Semen Extender is available now at The Dirty Bay Bully Depot — your source for professional-grade canine reproduction supplies. Questions before you order? Call or text us at (713) 992-4822.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"BullGen","offers":[{"title":"Default Title","offer_id":49666508488952,"sku":null,"price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0824\/8406\/8600\/files\/IMG_2018.png?v=1782522794","url":"https:\/\/thedirtybaybullydepot.com\/products\/bullgen%e2%84%a2-10-day-canine-semen-extender-professional-chilled-semen-preservation","provider":"Dirty Bay Bully Depot","version":"1.0","type":"link"}