According to experts, the ideal calving interval is between 386 and 405 days. The profit margin on milk is highest within this bracket (see graph). For several years now, in Quebec as well as the rest of Canada, the calving interval falls between 430 and 435 days. The objective therefore is to reduce the average interval by 25 to 30 days (minimum): quite the challenge!

When it comes to replacement animals, it has been shown that a heifer will produce more milk in her first lactation and over the rest of her life if she calves at an optimal weight at 24 months. Our Holstein heifers average somewhere around the ideal post calving weight of 600 kg, however, they calve at 27 months old rather than the recommended 24 months. There are three months to be gained: another challenge!

Your Valacta advisor can make a difference on your farm.

With the support of your Dairy Production Technician:

  • Evaluating Body Condition
  • Monitoring Animal Weights