Effects of calving age, breed fraction and month of calving on calving interval and survival across parities in Irish spring-calving dairy cows
A large-scale study on the effect of age at first calving, dam parity, and birth and calving month on first-lactation milk yield in Holstein Friesian dairy cattle
Associations between age at first calving and subsequent performance in Irish spring calving Holstein–Friesian dairy cows
Effect of Age at First Calving on Some Productive and Longevity Traits in Iranian Holsteins of the Isfahan Province
Phenotypic and genetic relationships between age at first calving, its component traits, and survival of heifers up to second calving
Impact of Age at Calving on Lactation, Reproduction, Health, and Income in First-Parity Holsteins on Commercial Farms
Association between growth rates, age at first calving and subsequent fertility, milk production and survival in Holstein-Friesian heifers
Characterization of the variable cow's age at last calving as a measurement of longevity by using the Kaplan–Meier estimator and the Cox model
Changes in the genetic level and the effects of age at first calving and milk production on survival during the first lactation over the last 25 years
Cross-sectional analysis of the associations between age and body weight at first calving and productivity in spring-calving Holstein-Friesian dairy cows
