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.
If you have freckles, there's a good chance your parents and siblings have them, too. A combination of both sun exposure and genetics determine how those darker specks will pop up. People with light skin and light or red hair are more likely to have freckles than those with darker skin. Freckles usually appear on children, and they can start to show on people as young as one or two years old. Freckles develop in random places on the body, usually around areas that get the most sun exposure, such as the face and the arms. Interestingly, research done among sets of twins shows that identical twins have nearly the same number of freckles.