Vitamin D is crucial for beef cattle, impacting their growth, bone development, and overall health. Vitamin D facilitates the absorption of calcium and phosphorus, essential minerals for bone formation. Without sufficient vitamin D, cattle cannot properly metabolize these minerals, leading to serious health issues.
A deficiency of vitamin D in growing cattle results in external symptoms characterized by deformed bones and excessive cartilage deposits in growth areas. This deficiency lowers blood levels of calcium and phosphorus while increasing phosphate levels. Consequently, the epiphyseal junctions widen, and muscle tension causes the long bones to bend and twist, resulting in characteristic bone deformities. Excess cartilage at the ends of the bones leads to enlargements, creating a “beading” effect along the sternum where rib bones attach.
One common manifestation of vitamin D deficiency in cattle is rickets. Rickets is particularly prevalent in calves and is marked by decreased growth, stiffness, enlarged joints, and a distinctive arching of the back. This condition not only affects the animal’s well-being but also reduces its productivity and market value.
Recent studies emphasize the need for adequate sunlight exposure and dietary supplements to prevent vitamin D deficiency in cattle. With the rise of indoor feeding systems and limited pasture access, ensuring proper vitamin D intake through fortified feeds has become increasingly important. Regular monitoring of vitamin D levels in cattle can help in early detection and prevention of these deficiencies, ultimately leading to healthier and more productive herds.
Essential Role of Vitamin D in Beef Cattle Health and Growth
