Although it depends on the specific dog, female dogs are usually the most fertile around the 11th day of estrus, and typically cycle twice a year, but exact times vary by breed and location. Male dogs are fertile all the time, after reaching sexual maturity.
Male dogs can become fertile as early as 6 months old, but they must not be bred until they are at least 12 to 15 months old. Female dogs have their first estrus cycle, colloquially known as heat, starting between 6 months to 2 years old. Females must not be bred on their first heat cycle or required to carry litters after they reach 12 years old. Breeders test dogs for common genetic diseases in that breed and require dogs to prove themselves in the show ring or in working trials before being bred.Learn More
PetMD lists several popular names for female dogs with black fur. Shadow is one of the most popular names on the list and stands out as a good choice for a faithful dog that likes to be as close to its human family as possible. Blackberry is another typically feminine name that's suited for dogs with black fur; it's a cute name for smaller dogs.Full Answer >
Fox terrier is the breed of Nipper, the famed RCA canine logo. The picture of Nipper used by RCA and other gramophone recording companies is from a portrait titled "His Masters Voice."Full Answer >
Being in heat is a colloquial term for the estrus cycle in female dogs, so male dogs do not come into heat but instead are always fertile. Male dogs who are exposed to female dogs in heat might attempt to escape from their homes, become distracted or act aggressively.Full Answer >
The Cesar dog food dog is a West Highland white terrier. These dogs are native to Scotland and have been in the United States since the early 20th century. The intelligent, adaptable personality of the Westie, as this breed is often called, is an asset for commercial work.Full Answer >