Glenn Selk, Oklahoma State University Emeritus Extension Animal Scientist — Producers with fall-calving herds have traditionally weaned the calves at 9 to 10 months of age. When forage growth is limited due to drought, questions arise about the feasibility of weaning the calves at an earlier date. The effect on the cow as well as weaning weight of the calf must be considered when the impact of the weaning date is considered. Oklahoma State University animal scientists evaluated weaning dates of 158 Angus fall-calving cows over a 4 year period. Cows were allowed to nurse their calves for about 210 days (April Weaning) or 300 days (July Weaning).

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