Relationship between teat dimensions and milking efficiency by hand milking on dairy cows in Temanggung Regency

Abstract

This research was completed at PT. Naksatra Kejora, Temanggung Regency, Central Java Province, Indonesia using 31Holstein Friesian cows (lactation period I-V and lactation month 1-10). The observational method was used in this study. The parameters measured were teat dimensions (teat volume as X1, teat circumference as X2, and teat length as X3) as independent variable and milking efficiency (milking time duration / milk production as Y) as dependent variable. Data obtained were analyzed using correlation, then using linear multiple regression to predict the milking efficiency from teat dimensions. Analysis of variance was used to test the significance of model. The result showed that there was no significant relationship between milking efficiency with teat volume (R = 0.070), teat circumference (R = 0.226) and teat length (R = -0.090). The multiple regression model was Y = 1.141 + 0.003 X1+ 0.050X2- 0.092 X3 (R2 = 0.236, no significant P = 0.061). It was concluded that it was difficult to predict the milking efficiency from teat dimensions on Holstein Friesian cow in Temanggung Regency.