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Between dry-off, at around 60 days before calving, and one month after giving birth, cows are most at risk of infection and ketosis. During these Vital 90TM Days , their natural defence mechanisms are down and they are expending more energy than they are taking in. This leaves cows vulnerable to mastitis, retained placenta and metritis, as well as ketosis – putting the health and productivity of the individual and the herd at risk1-4.


[1] Duffield_2009_Impact of hyperketonemia in early lactation dairy cows. JDS 92 571-580
[2] Raboisson et al., 2015. The economic impact of subclinical ketosis at the farm level: Tackling the challenge of
over-estimation due to multiple interactions. Preventive Veterinary Medicine 122 (2015) 417–425
[3] McArt et al., Epidemiology of subclinical ketosis in early lactation dairy cattle. J.Dairy Science. 95 :5056–5066
[4]Gerloff BJ. Vet Clin N Am 2000; 16 (2): 283–292;
[5] Macrae, A.I. et al. Prevalence of clinical and subclinical ketosis in UK dairy herds 2006-2011. World Buiatrics, Lisbon, Portgual, 2012