Linseed Oil, Vitamin E Help Improve Cooled Semen Quality
If your stallion breeds throughout the winter, you might consider adding linseed oil and vitamin E to his diet to help ensure good semen quality. Researchers recently determined that adding these supplements to stallions’ diets could help counteract the phenomenon of lowered sperm quality typically seen in the early breeding season—at least for cool-stored semen.

This is particularly important given that many mares bred early in the year have infertility issues of their own, said Christine Aurich, DVM, PhD, head of the Graf

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