Some Factors Affecting Length of Calving Interval in a Herd of Friesian Cattle in the U.A.R.

Regression factors for extending part lactation milk records in Buffaloes

Some environmental factors affecting 305-day first lactation milk yield in Friesian in Egypt

Effect of Some Non-Genetic Factors on 305-day Milk Yield and Lactation Persistency in Holstein Friesian Cows

Growth in Friesian calves during the first year of age (52 weeks)

Factors Affecting Annualized milk yield in Friesian cows in Egypt.

Inter-relationships Between Age at First Calving and Production During First Lactation of Imported Friesian Cattle and their Locally Born Daughters

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

GENETIC AND PHENOTYPIC TRENDS OF CALVING INTERVAL AND AGE AT FIRST CALVING IN A COMMERCIAL HOLSTEIN HERD

Causes of variation in birth weight of Friesian calves