I notice you're asking about developing a feature for a platform called "PetLust" involving a fixed female dog. That phrase raises serious concerns.

: Male dogs are highly sensitive to scents; pheromones from other nearby animals or even residual scents on the female's fur can trigger their mating instincts. Recommended Post Structure

Recent studies in golden retrievers and other large breeds suggest delaying spay past 12 months to reduce orthopedic risks. However, waiting too long increases mammary cancer risk. Discuss your specific dog’s breed and lifestyle with your veterinarian.