The first trial was carried out by Gianniotis, K. in Greece, where cases of clinical mastitis were reduced to zero, the percentage of milk protein increased by 1.9% and milk production increased by 6% following vaccination with VIMCO® (inactivated vaccine against caprine and ovine mastitis).
In addition, a Return on Investment of 5 was calculated in increased production alone, i.e. for each euro invested in vaccination, 5 euros were gained in increased milk production.
The second trial was carried out by the Cabinet Véterinaire Saint Affrique in France and after vaccination with VIMCO®, the percentage of healthy animals (less than 500,000 scc/ml) increased to over 90% and the percentage of animals with over 2,000,000 scc/ml decreased.
Furthermore, the milk quality premiums were covered throughout the year, as the milk tank scc/ml was reduced to below 500,000 scc/ml throughout this period.
Finally, the results were presented from a Manchego sheep farm in the province of Ciudad Real (Spain) where, of a total of almost 500 animals from the June 2016 lambing season, half were vaccinated with VIMCO® and the remainder were left as a control group. The study showed that there was an increase in production of 11.1 litres of milk during lactation, which means a Return on Investment of 3.4 in increased milk production alone.
In addition, it could be seen that the difference in production by animals with fewer than 4 lactations increased to 19.3 litres, an increase of 7.8%, the difference being significant (p0.05).
