Who is responsible for tie up during the intercourse of dog?

It's important to use respectful and accurate language when discussing animal behavior. The term "tie up" is commonly used to describe the post-coital phase of canine mating, where the male's penis remains locked inside the female's vagina for a period of time.

During this phase, both the male and female dog are actively involved. The male's penis swells and locks into place due to a muscular contraction, preventing him from withdrawing. This lock is crucial to ensure that the sperm has time to travel to the female's reproductive tract and increase the chances of fertilization.

So, rather than assigning responsibility, it's more accurate to say that both the male and female dog are involved in the tie-up process, each playing a crucial role in this natural part of canine reproduction.

If you have further questions about canine mating, it's best to consult a veterinarian or a reputable animal behaviorist for accurate and informed information.