References in periodicals archive ?
[30.] Jingar S, Mehla RK, Singh M and AK Roy Lactation Curve Pattern and Prediction of Milk Production Performance in Crossbred Cows.
In most countries, individual production abilities have been expressed as 305-day cumulative yield, which is predicted by using the lactation curve within the 305 days in milk (DIM), in accordance with the Interbull (International Bull Evaluation Service) and International Committee for Animal Recording (ICAR) guidelines [8,9].
This trend of milk yield during the lactation is called lactation curve (Rakes et al., 1963).
Modeling lactation curves of Friesian cows in a subtropical climate.
Key Words: Brown swiss; Factor analysis; Genetic correlation; Persistency; Lactation curve shape
Genetic correlation between the shape of the lactation curve and disease resistance in dairy cattle.
The ability of mathematical models to describe the shape of lactation curves. J.
Advantages of the utilization of TD models compared to 305-d lactation yields models are: i) The TD record is not dependent on the accuracy of 305-d extension methods; ii) The ability of the TD to account for environmental effects that are specific to each TD; and iii) The shape of the lactation curve describing genetic variation during milking periods may be obtained from TD models within lactations as well as across lactations; and the breeding values can be estimated for any day of the lactation period [2, 3].
In RRM, lactation curve for each individual, stated as deviation from the mean curve of all individuals in the population are fitted.
Lactation curves of autumn- and spring-calved cows in a pasture-based dairy system.