Medycyna Wet. 64 (10), 1201-1204, 2008
Barański W., Janowski T., Zduńczyk S.
Incidence of reproduction disorders, clinical mastitis and lameness in cross-breed HF × BW cows and Jersey cows maintained in the same conditions
The aim of this analysis was a comparison of the incidence of reproduction disorders, clinical mastitis and lameness in Holstein-Friesian and Jersey cows maintained at the same farm during three years. The herd consisted of 125 cross-breed HF × BW cows and 39 Jersey cows. Incidence of silent heat was 28.5% in HF, and 26.3% in Jersey. Cystic ovarian disease occurred in 3.8% HF and 3.9% of Jersey cows. Retained placenta was observed in 6.6% HF and 3.1% Jersey, and endometritis in 8.9% and 4.4%, respectively. 13.5% HF suffered from lameness and only 1.5% Jersey (p £ 0.05). Prevalence of clinical mastitis was at a similar level (HF – 54.7%, Jersey – 50.7%). Incidence of reproduction disorders and clinical mastitis was very similar for both analyzed breeds, despite of the difference of milk production. On the other hand there was considerably less lameness in Jersey than in Holstein cows.
Keywords: cows, Holstein-Friesian, Jersey, diseases