Theenvironmental factors alter the genetic potentialefficiency of milk-producing animals andshape of theirlactation curves. The factors are related to animal diet,the health condition of cows, events linked with fertilityand the type of management, as well as with specificclimate conditions (Gajster, 1991; Fleischer et al., 2001;Rekik and Gara, 2004; Macciotta et al., 2006)
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].