GENETIC AND PHYNOTYPIC CORRELATIONS OF AGE AT FIRST CALVING WITH SOME CALF-HOOD FITNESS AND HEALTH TRAITS IN HOLSTEIN HEIFERS

GENETIC AND PHENOTYPIC ANALYSES OF DAYS OPEN AND 305-DAY MILK YIELD IN A COMMERCIAL HOLSTEIN FRIESIAN HERD

Genetic and Phenotypic Associations of Milk Traits with Age at Calving and with Length of Open Period, Dry Period and Lactation

GENETIC AND PHENOTYPIC TRENDS OF 305-DAY MILK YIELD OF HOLSTEIN COWS RAISED AT COMMERCIAL FARM IN EGYPT

Genetic and Phenotypic Parameters and Trends for Milk Yield, Service Period and Calving Interval and The Economic Impact of Extending A Calving Interval on-Farm Profitability in F

EFFECT OF CALVING SEASON, PARITY AND AGE AT FIRST CALVING ON PERFORMANCE TRAITS AND PHENOTYPIC CORRELATIONS BETWEEN THESE TRAITS IN HOLSTEIN FRIESIAN COWS

Genetic aspects of fertility, interval and milk traits for the first three lactations in Braunvieh cows

GENETIC AND PHENOTYPIC TREND OF MILK PRODUCTION TRAITS AND AGE AT FIRST CALVING APPLYING RANDOM REGRESSION MODEL IN FRIESIAN CATTLE IN EGYPT

Estimation of the genetic and environmental trends for milk traits of Holstein herd

GENETIC AND PHENOTYPIC PARAMETERS FOR MILK YIELD, DAYS OPEN AND NUMBER OF SERVICES PER CONCEPTION OF HOLSTEIN COWS OF A COMMERCIAL HERD IN EGYPT