Vitamin B and copper supplementation in beef calves

Area of Science:

• Animal Science
• Nutritional Biochemistry
• Veterinary Medicine

Background:

• South Australia's southeast region is known for cobalt and copper deficiencies in livestock.
• Deficiencies can impact animal health and productivity, particularly in young animals.

Purpose of the Study:

• To investigate the effects of vitamin B12 and copper supplementation on bodyweight gain in Hereford calves.
• To analyze biochemical markers in calves and dams to understand the impact of supplementation.

Main Methods:

• Hereford calves were divided into four groups: control, copper, vitamin B12, and combined supplementation.
• Subcutaneous injections were administered over a one-year trial period.
• Biochemical analyses were performed on blood, hair, feces, and dam's milk.

Main Results:

• Significant bodyweight gain responses were observed with both vitamin B12 and copper supplementation.
• Biochemical data provided insights into nutrient utilization and deficiency indicators.
• The study confirmed the impact of supplementation on growth performance.

Conclusions:

• Calves grazing on cobalt-deficient pastures benefit from cobalt or vitamin B12 supplementation.
• Supplementation is crucial for optimal growth and health prior to weaning in deficient areas.