Correlation between Tail Length and Rate of Infected Quarters in Montbéliarde and Ameliorated Dairy Cattle, Algeria

This study aimed to evaluate the impact of the tail's length of Modern Dairy Cattle and Ameliorated Dairy Cattle on the rate of infected quarters.12 lactating cows were randomly selected; 6 breed Montbliarde and 6 Ameliorated Dairy Cattle, subsequently the distance between the tail edge and the ground was measured with a tapeline. Then, California Mastitis Test was realized on milk samples collected from the 4 teats of each cow. Spearman test (p < 0.01) showed that contamination risks of teats surface via the cow's tail, were associated to Ameliorated Dairy Cattle breeding and environmental hygiene level (litter).