A study of the reproductive performance, milk yield, milk constituents, and somatic cell count of Holstein-Friesian and Montbeliarde cows

摘要

The aim of this study was to compare the reproductive performance, milk yield, milk constituents, and somatic cell count of Montbeliarde (M) and Holstein-Friesian (HF) cows. The number of data points used for the first calving age (FCA), calving interval (CI), milk traits, and milk constituents were 87, 264, 270 and 108 for M cows and 167, 450, 491, and 114 for HF cows. The effects of herd on FCA, CI, 305-day milk yield (305-dMY), and protein content (PC) were determined to be statistically significant (P