Genetic (co) variance for sire fertility estimated by additive, non-additive and longitudinal models in Holstein–Zebu cross-bred cows
AM Buxadera, Y Ayrado - animal, 2013 - Elsevier
For this study, we used the results of sire fertility (SF) measured on a monthly basis by the
ratio between the number of pregnant cows and the number of inseminations, from a total of …
ratio between the number of pregnant cows and the number of inseminations, from a total of …