Dog breeding can be challenging. Males dogs have certain problems, especially young or inexperienced dogs. Sometimes male dogs don't seem interested in the female, or they have problems mounting or penetrating. There are things you can try to correct these and other problems with male dogs.
Lack of Interest
The male dog may be distracted by new scents, people or noises. Bring the female to the male's pen. The male won't be distracted if he is in a familiar environment. This way, he can focus solely on the female. If the male seems intimidated or nervous, introduce him to the female slowly. Let the dogs play together for 10 to 15 minutes. Break them apart, then let them play some more. It may take a few days for a young, inexperienced male to become comfortable. Introduce the dogs a few days before you expect mating to occur.
The male dog may have difficulty mounting the female because of height differences. If the male is too tall, hold up the female up by grabbing underneath her flank area and lifting her rear end. If the male is too short, fold blankets and place them on the floor so the male can mount the female easier.
Young male dogs can become excited and start mounting the female's face or side. The first time this happens, gently lead him to the female's back side. If he starts mounting the wrong area again, remove him for 20 to 30 minutes to calm down. If this is the male dogs first time, use an older, more experienced female.
Even experienced males have trouble penetrating females. Put a dime-sized dab of water-based lubricant on the female's vagina to ease penetration. Or, place your hands on the female's lower abdomen and move her rear end that promotes easier entrance. The direction depends on the male's position, but an upward tilt helps.