he mechanisticmodel provides an understanding of factors controllingthe variations in milk production and they have morebiological interpretation. They can be too complex forroutine use outside the research in practice (Nasri et al.,2008; Ehrlich, 2011). The problems those occur mostfrequently at all models and lead to the atypical shape oflactation curves are in a few numbers of measurementsfor the estimation of model parameters, inadequatedistribution of measurements with regard to time ofsampling, missing measurements for lactation curvephases, and unexplained oscillations of milk yield.
Modeling lactation curve standards for test-day milk yield in holstein, Brown Swiss and simmental cows (PDF Download Available). Available from: https://www.researchgate.net/publication/285936241_Modeling_lactation_curve_standards_for_test-day_milk_yield_in_holstein_Brown_Swiss_and_simmental_cows [accessed May 2, 2016].