Age and weight at first calving and subsequent performance in Dutch dairy cattle from rearing farms
Open Access
- 1 July 1991
- journal article
- research article
- Published by Taylor & Francis in Veterinary Quarterly
- Vol. 13 (3) , 180-184
- https://doi.org/10.1080/01652176.1991.9694305
Abstract
Calf‐cow records from 1081 replacement heifers raised on 42 specialised rearing farms in the province of Noord‐Brabant have been analysed. The predominant breed was Meuse‐Rhine‐Yssel (MRY). The objective was to study the relationship between weight and age at first calving and milk production in subsequent lactations, herd life span, dystocia and first calving interval. Weight appeared to be a better predictor for first lactation Fat and Protein Corrected Milk production (FPCM‐1) than age. First lactation FPCM had a significant and positive effect on herd life FPCM. First lactation FPCM was significantly associated with first calving interval.Keywords
This publication has 5 references indexed in Scilit:
- Estimation of Genetic (Co) Variances for Milk Yield in First Three Lactations Using an Animal Model and Restricted Maximum LikelihoodJournal of Dairy Science, 1987
- Studies on Lactation Yield and Individual Test-day Yields of Swedish Dairy CowsActa Agriculturae Scandinavica, 1982
- Relationship of Age at First Calving, Days Open, Days Dry, and Herdlife to a Profit function for Dairy CattleJournal of Dairy Science, 1976
- Age and Herd Adjustment of First Lactation Milk YieldJournal of Dairy Science, 1972
- Joint Influence of Month and Age of Calving on Milk Yield of Holstein Cows in the Northeastern United StatesJournal of Dairy Science, 1970