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. 2014 Apr 16;9(4):e95407. doi: 10.1371/journal.pone.0095407

Figure 3. Ridge regression analyses relating DFI measures (xDFI, sdDFI and tDFI) from day 60 prior to semen collection to date of collection with weather measures (Tave  =  average daily temperature, Tmax  =  maximum daily temperature, and THI  =  temperature humidity index), for each HSP90AA1 genotype.

Figure 3

Fitted effects extending beyond dotted-lines (---) differ significantly (P<0.05) from zero. Four regions (gray regions) with a significant possible effect on sperm DFI levels were identified.