Every dairy farmer knows the pattern: as soon as the weather turns warmer and more humid, more cases of mastitis start appearing in the barn. “If the milk recording report shows that more than 15% of your cows have elevated somatic cell counts, it’s time to take action,” advises veterinarian Arnout Patyn. “Sound the alarm as well if your bulk tank somatic cell count exceeds 250,000 cells per milliliter.” Dr Sofie Piepers, udder health specialist at Ghent University, adds: “In herds with multiple risk factors, warm and humid conditions can provide just the extra push that turns a subclinical infection into visible mastitis. Those risk factors lie in the milking routine, milking technique, bedding, and the functioning of the milking machine. It’s crucial to address as many of them as possible.”