Let’s explore how the rumen develops in the preweaning phase, and it will become clear why a proper grower diet is necessary for optimal growth and long-term productivity in dairy calves.

Calf hydration management is one of the most critical and often overlooked components of successful calf raising. In the first weeks of life, calves are highly susceptible to fluid imbalance caused by environmental stress, management transitions and gastrointestinal illness.

In an increasingly demanding dairy production environment, the performance of replacement heifers is a major factor for ensuring herd profitability and sustainability. A solid rearing program goes beyond genetics – it starts with measuring current growth results.

Through our experience of working with numerous dairies to troubleshoot early calf health challenges, we’ve identified several critical, nonnegotiable colostrum management practices.

This article from researchers from Cornell University and Germany describes the individual, seasonal and herd-level variability of colostrum production and summarizes the association between animal individual factors – such as parity, sex of the calf, calf birthweight, as well as indicators of the cow’s metabolic status – and the yield and composition of colostrum.

Young calves are the future of most dairy herds, and their future production potential is directly tied to their growth and development pre-weaning. At birth, the rumen is non-functional, leaving the calf reliant on a liquid, milk-based diet.

In the realm of calf raising, the adage holds true: "You can't manage what you can't measure." From birth to weaning, a variety of tests and measurements can help you evaluate the success of your calf-raising protocols, provide insights into calf health and highlight areas for improvement.

Calves are not just a cost; they are the investment in the future potential of your dairy herd. As the promising carriers of our best genetics, they represent the assurance of future profitability.