There are both short term costs, the immediate cost of foot trimming and treating the lame cow and long-term costs, the increased chance of her being culled early or impact on calving interval. Many papers have tried to estimate the cost of lameness per lesion and most have been estimated using known losses to milk yield, fertility and longevity added to the costs of treatment. Archer et al. (2010) found persistent mobility score 3 cows lose approximately 1000 litre of milk per 305d lactation and persistent mobility score 2 cows lose approximately 500 litres of milk per 305d lactation.
Figure 8: Research papers estimating losses per lesion
For an in-depth calculation into lameness costs on individual farms, Nick Bell has an extensive calculator that can be tailored to individual farms, To discuss contact: firstname.lastname@example.org