Equine & Livestock

8 Covetrus | ph: 855.724.3461 | fx: 888.329.3861 | northamerica.covetrus.com While producers often think of vaccination and parasite control as the primary drivers of herd health, veterinarians can offer their expertise on many other aspects of herd health, leading to greater weight gain and profitability. Think beyond vaccines and parasite control and emphasize the following aspects of herd health with your clients. PROCESSING PROCESSING After traveling from a cow-calf operation to join a production herd, the newly weaned calves must be processed. Processing typically involves administering vaccines (if not administered prior to transport), inserting implants (if applicable), and branding (if applicable). Additionally, all cattle should be weighed and sorted into similar groups for housing purposes. While producers may be tempted to start processing new arrivals immediately, recommend a 24-hour rest period. 1 During this time, cattle should be given free access to hay and fresh water. This rest period will provide an opportunity for rest and rehydration. Work with producers to develop a rational plan for processing. Evaluate which services can and should be performed, and work with producers to ensure that they are conducting their processing in a low-stress manner. Minimizing stress associated with processing can decrease the likelihood of illness and contribute to increased weight gain. WEANING SHOCK WEANING SHOCK Weaning shock is a well-documented phenomenon in calves transitioning from milk to a young stock diet. Calves often lose weight during this period, due to physiological and psychological stresses associated with weaning. However, there are less-visible internal changes that occur during this time. In Holstein calves, for example, weaning has been associated with an increase in cortisol, acute-phase proteins, inflammatory cytokines, and some types of leukocytes. 2 These immune changes can lead to an increased risk of illness, and should be managed appropriately. Producers can take a number of steps to decrease weaning shock. Ideally, calves should be gradually separated from their dams over time, instead of taking an abrupt approach. Two- stage weaning can be accomplished using fence lines or nose-flaps that prevent suckling. 3 Taking a gradual approach to weaning can decrease stress associated with this transition. NUTRITION NUTRITION Producers can mitigate the effects of weaning shock by providing supplemental nutrition in the days preceding and following weaning. 4 In most cases, calves are accustomed to eating grass with their dam. Feeding high-quality hay for several days can help calves transition to the production setting. After a few days, producers should begin adding supplemental protein and energy to the diet, in the form of a total mixed ration or top-dressing added to hay. 4 While these general strategies can be beneficial, specific considerations vary based on season, available feedstuffs, and other factors. By working closely with producers, you can help them develop the best possible nutrition program for their unique circumstances, ensuring that the herd gains weight rapidly and efficiently. Herd Health in Weaned Calves

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