Page 15 of articles about nutrition in Articles

Landrace boar in an artificial insemination centre

The feeding of the boar

The great impact of the boar on the swine production (up to more than 6,000 piglets produced by boar and year) determines the great interest in the study of any factor that can have an incidence on its production results.

Multiple distal rib fractures with callus formation (arrows).

Vitamin D deficiency syndromes in swine (I)

Vitamin D is normally produced following skin exposure to ultraviolet-B. Since most piglets (and humans too!) are raised in climate controlled housing and born year-round, direct access to sunshine is often limited, even in the summer. Fortunately, vitamin D can be added to diets to meet the animals' need for vitamin D.