weaning calves, beef claves, management practice
Agricultural and Biosystems Engineering
Weaning calves earlier than the normal 6-7 months of age is a management practice that should be considered when pastures are short or quality is poor. Calves have been weaned successfully at less than 2 months of age. However, normal rumen function is not developed until approximately 120 days of age. Research has demonstrated that calves older than 90 days have satisfactory gains without being put on milk replacers. Calves can be placed in a drylot on a medium energy diet (NEg ≥0.45 Mcal/lb), on a higher quality pasture, or a pasture with supplemental creep feed.
Tjardes, Kent; Wright, Cody; and Boggs, Don, "Early Weaning Beef Calves" (2002). SDSU Extension Extra Archives. 56.