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Table 1 Interactions between the tested variables and its effects on the pregnancy rate in dairy cows

From: Fertility response of lactating dairy cows subjected to three different breeding programs under subtropical conditions

Analysis of between topic effects (DV: Dependant Variable)
Source Sum of squares df Mean square F value p value
Corrected model 74,447.514a 11 6767.956 2.954 .001
Intercept 2,041,111.842 1 2,041,111.842 891.026 .000
Season of insemination 32,904.704 1 32,904.704 14.364 .000
Breed of the cow 21,005.374 1 21,005.374 9.170 .003
Synchronization protocol 2280.659 2 1140.330 .498 .608
Season × breed 4165.543 1 4165.543 1.818 .178
Season × synch protocol 36.990 2 18.495 .008 .992
Breed × synch protocol 13,019.605 2 6509.803 2.842 .059
Season × breed × synch protocol 1034.638 2 517.319 .226 .798
Error 3,454,440.644 1508 2290.743   
Total 5,570,000.000 1520    
Corrected Total 3,528,888.158 1519    
R squared = .021 (Adjusted R Squared = .014)