Decide how many bottles (units) of semen that can be processed from the ejaculate. Each bottle should contain about 3 to 4 billion sperm and 80 to 100 ml fluid. The boar ejaculate may contain from a low of 10 to 15 billion up to over 100 billion sperm or enough sperm for 2 or 3 bottles up to 25 or more bottles. This number depends upon age, breed, frequency of collection, and individual boar. If you do not have a sperm counting device, you will have to follow some guidelines.
Freckles appear when the melanin, the dark pigment in skin, isn't distributed evenly -- certain areas of the skin have more than others, and that's why they appear a little darker. But what does sunlight have to do with the issue? If you're prone to freckles, you're more likely to have them the more you expose yourself to the sun.
Freckles and Your Skin. Freckles are small brown spots usually found on the face, neck, chest, and arms. Freckles are extremely common and are not a health threat. They are more often seen in the summer, especially among lighter-skinned people and people with light or red hair. What Causes Freckles? Causes of freckles include genetics and exposure to the sun. Do Freckles Need to Be Treated? Since freckles are almost always harmless, there is no need to treat them. As with many skin conditions, it's best to avoid the sun as much as possible, or use a broad-spectrum sunscreen with SPF 30.