… the correlations between the test-day milk yield (TDMY) and … yields in Holstein dairy cows
and to investigate the effects of … and milk samples of some 151 head of Holstein dairy cows in …

… season of the test for TDMY, and as herd, year and season of … the lactation length, b is the
vector of solutions for fixed effects… days in milk until approximately the sixth month of lactation. …

… effects of herd, calendar month of test, age of sample at laboratory testing, stage of lactation,
age of cow, and somatic cell counts on milk yield … similar for different seasons within the 2 yr. …

… in cows affected by mastitis to 1.7% during the last month of … cows grazing surveyed factors
on milk yield, test-day milk fat and … Test-Day Milk production and composition and relation of …

… Age at test day was defined as number of months from birth. … Cows were required to have
a minimum of three test-day … This suggests that the heritabilities for early-lactation milk yield …

… the impact of clinical lameness in Polish Holstein-Friesian dairy cows on milk yield as well
… The dataset includes 312 monthly test-day milk yields and milk composition records from 78 …

… review of daily milk yields, the foundation of lactation records. We … estimating daily milk yields
and their implications for genetic … composition, age at calving, season of calving, and DIM …

… on level of milk yield; a cow would be pregnant only for the last 6 or 7 TD; the … the lactation
curve for all cows in the same ageseason subclass, and the estimated additive genetic effects …

… variance components for milk yield, milk component yields, … j is parity × year of calving ×
season of calving × class of DIM … lactation-specific permanent environmental effect of lactation …

… as fixed effects the interactions flock-year-month of test day and … The strong effect of season
on test day yields suggests … effects specific to individual TDs are important on milk yields in …