Standard deviations of differences between esti-mated and actual yields are shown in Table 3. Thestandard deviations of differences between either BPmethod and both measures of actual yield weresmaller than for differences between TIM and actualyield for all testing environments. For comparisons ofestimated yield with 305-d actual yield, standarddeviations of differences for both BP methods were 4%smaller than for TIM for MN testing, 6% smaller forAP testing, and 10% smaller for TRI testing, whichindicates that both BP methods have a moderateadvantage over TIM despite correlations betweenTIM and BP estimates of nearly 1.0. The advantageincreased for testing environments in which weightsand samples were recorded at less optimal intervalsand frequencies. The main advantage of a BP methodover TIM is that lactation records are regressed
Comparison of Test Interval and Best Prediction Methods for Estimation of Lactation Yield from Monthly, a.m.–p.m., and Trimonthly Testing (PDF Download Available). Available from: https://www.researchgate.net/publication/13221765_Comparison_of_Test_Interval_and_Best_Prediction_Methods_for_Estimation_of_Lactation_Yield_from_Monthly_am-pm_and_Trimonthly_Testing [accessed May 8, 2016].