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Dogs + Breeding

  • Puberty or sexual maturity in the female dog usually occurs around six months of age. The smaller breeds tend to go into estrus or "heat" earlier and some females can have their first "heat" cycle as early as four months of age. On the other hand, the large and giant breeds can be up to two years old before they come into heat for the first time.

  • Pregnancy in dogs, also called the gestation period, normally ranges from 57-65 days with an average of 63 days.

  • Many owners find the companionship of their dog so rewarding that they feel they would like to breed their dog, to continue the bloodline and/or to keep a puppy. Others, especially first time dog owners, will acquire a female dog with the intent to breed her when she is old enough.

  • After mating, many females will show changes in behavior, often becoming more affectionate. However, some pets will become uncharacteristically irritable and may even act aggressive during pregnancy. Be sensitive to your pet's behavioral changes and be sure to alert your veterinarian if you are concerned.

  • A sheepdog from France? With his long shaggy locks, curiously perked ears and air of dignified aloofness, the Briard is indeed a French sheepdog with that je ne sais quois - not like his British or German sheepherding brothers, but entirely original.

  • These dogs are playful and happy to join their family in anything. Most are friendly and accepting of strangers. They're happy, waggy dogs who always greet their family with an invitation to play.

  • They're perfectly willing to lie beside you (or on your lap) while you're reading a book, but if you invite them to play, they'll join a rousing game of catch-me-if-you-can.

  • The clownish, energetic Bull Terrier has found himself to be the object of advertising adoration. No fewer than three Bull Terriers have lent their talents to various marketing media. That said, any well-bred Bull Terrier is happy to put on a show for the family upon whom he lavishes never-ending devotion – and for family guests as well.

  • With its massive head, jutting jaw and barrel shape, the Bulldog appears to be a real tough guy but in fact is just the opposite. The truth is, everyone loves the Bulldog and this sweetheart returns the compliment.

  • Strong-willed and with a body more powerful than the average bear, the Bullmastiff cannot be coerced to do something he doesn't want to do. But for a master he loves and respects, nothing is impossible. These dogs crave physical contact and consider themselves to be lapdogs despite their girth.