Lifetime Daily Yield can be increased by reducing the age at 1st calving
Lifetime Daily Yield can be increased by reducing the age at 1st calving, increasing production per lactation and by increasing the number of lactations per cow. Several studies1,2,3 have shown that as a result of increased levels of pre-weaning nutrition, calves will reach the desired body weight to start inseminations at an earlier age and will also reach puberty earlier4. As a result, they can be inseminated earlier and calve at an earlier age. Fertility results of a trial carried out at the Kempenshof Research Centre are presented in this article5.