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Table 2 Time series models used for each payment program based on milk quality (PPBMQ) class based on milk quality and the respective value of the Ljung-Box test

From: Month-wise variation and prediction of bulk tank somatic cell count in Brazilian dairy herds and its impact on payment based on milk quality

Class Model p-value (Ljung-Box test)
Class 11 SARIMA(2,1,0)(2,1,0)12 0.41NS
Class 21 SARIMA(2,1,0)(1,1,0)12 0.51NS
Class 31 SARIMA(1,1,0)(1,1,0)12 0.31NS
Class 41 SARIMA(0,1,1)(0,1,2)12 0.63NS
Class 51 SARIMA(1,1,1)(0,1,1)12 0.81NS
  1. NS– non-significant; 1Class 1–1000 to 200,000 cells/mL, Class 2–201,000 to 400,000 cells/mL, Class 3–401,000 to 500,000 cells/mL, Class 4–501,000 to 800,000 cells/mL, Class 5 - > 800,000 cells/mL