A recent poll has shown that 78.7% of UK dairy farmers found the majority of disease and poor health in their herd occurs in the first 60 days post calving.
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Best way to reduce the risk of ketosis post calving in dairy cows
When a monensin bolus is administered, glucose production within the cow is stimulated, delivering increased energy levels over a 95-day period, thereby reducing the incidence of ketosis

Kate Heller, ruminant technical consultant at Elanco Animal Health, says that in most cases, this is transition related.

“Farmers don’t necessarily directly correlate post-calving health issues with ketosis, but more often than not, it is a key contributing factor,” she says.

Ketosis becomes especially apparent on-farm in the first month after calving, when a negative energy gap naturally develops within the cow. This is due to a surge in energy required for late foetal development and birthing the calf, coupled with the onset of milk production.

Ms Heller says preventing ketosis – both clinical and sub-clinical forms of the disease – is crucial to mitigate its impact on cow health, production, and overall business profitability.

“The direct cost of ketosis on-farm can be up to £220 per case, with the cost rising even further as cows become more susceptible to other diseases, due to the weakening of their immune system,” Ms Heller explains.

“‘SOFT cows’ – those that are Sick, Old, Fat, Thin or Twin-bearing – are at greatest risk of developing ketosis and associated diseases during the transition period.”

By identifying the cows that fall into these categories, farmers, vets, and nutritionists can work together to provide a holistic approach to transition management and ketosis prevention, to truly optimise the herd’s potential.

When teamed with careful diet formulation, good management practices, and regular monitoring of the herd’s health status, the best way to avoid the onset of ketosis in high risk animals or in at risk individuals is to administer an intraruminal monensin bolus, such as Kexxtone™, three to four weeks before calving.

“When a monensin bolus is administered, glucose production within the cow is stimulated, delivering increased energy levels over a 95-day period. This treatment has been shown to reduce the development of ketosis by 74%,” Ms Heller explains.

“By treating all those cows at high risk of ketosis with a monensin bolus prior to calving, you can significantly reduce the negative energy gap, helping prevent increased disease levels during the high risk 60-day post-calving period,” concludes Ms Heller.

Fonterra Cooperative Group, the world’s biggest dairy exporter, raised its earnings forecast for the second time in three months after a strong first quarter driven by demand for protein products.

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