Fig. 1
From: Harnessing male germline epigenomics for the genetic improvement in cattle
The domestic and export semen sales of dairy and beef cattle provided by the National Association of Animal Breeders (NAAB) (https://www.naab-css.org/semen-sales). A The sold semen unit averaged over 22Â years from 1979 to 2021. Note: Bars indicate standard errors. B The export semen sales (dollar) of dairy and beef cattle from 1979 to 2021. C The percentages of export semen sales for different breeds of dairy and beef cattle in 2021. D The export semen price (dollar) of dairy and beef cattle averaged over 22Â years from 1979 to 2021. Note: Bars indicate standard errors