At the end of April about 50 Polish dairy farmers gathered at a dairy seminar for new insights on managing heat stress in dairy cows. The seminar was organized by Noack Poland, who is distributor for Anco FIT products.
Jędrzej Staniszkis, Ruminant Additives Manager at Noack says: ”Predicting and assessing heat stress in dairy cows has recently been reviewed by researchers at the University of Agriculture in Krakow. We wanted to encourage the exchange of experience between Polish dairy farmers and also highlight the tools we have available to support dairy farmers when it comes to managing heat stress in cows. Although we live in a moderate climate, temperatures can shoot up to 30-35 degrees Celsius in Poland, when warm currents arrive from the south-east. Heat stress can cause significant losses in milk production, particularly in high producing dairy cows. We hope dairy farmers attending our seminar gained some new insights and are now feeling prepared to successfully manage their cows during the summer.”
Herbut el al (2018) from the University of Agriculture in Krakow demonstrated that heat stress can already occur at an air temperature of 20°C in Holstein-Friesian cows bred in moderate climates. However, it does also depend on the length of exposure to the temperature. Their results showed that in June 100 hours with temperatures >20C interrupted by a maximum of 3-4 h of rest (temperatures <20C) may cause a decline in milk yield by around 1.5kg But, milk loss can go up to 5kg with 200 hours under the same conditions.
Dairy consultant Hilmar Gerhardt shared some practical tips on feeding dairy cows during the summer months to maintain milk production and quality, when the days get hotter. He also highlighted the benefits of adding Anco FIT to dairy rations to reduce the negative impact of heat stress on cows. Feeding Anco FIT can help to reduce oxidative stress, which is a common stress reaction in response to heat and has been associated with increased somatic cell counts. He comments: “Commercial trials carried out with Anco FIT during the summer months show the stabilizing effect it has on feed intake, milk production and milk quality.”
Herbut, P., Angrecka, S. and Walczak, J. (2018). Environmental parameters to assessing of heat stress in dairy cattle—a review. Int.J. Biometeorol 2018; 62(12): 2089–2097.
Herbut, P, Angrecka, S. and Godyń, D. (2018). Effect of the duration of high air temperature on cow’s milking performance in moderate climate conditions. Ann. Anim. Sci., 2018; Vol. 18, No. 1, 195–207