Fig. 2

Differences in estimated breeding values of piglet survival during the nursing period between selected (\({\mathbf{H}}\)) and control (\({\mathbf{C}}\)) boars based on performances realised within the selection experiment and the selection responses in direct (\({\mathbf{D}}\)) and maternal (\({\mathbf{M}}\)) effects of the same trait in crossbred sows and in third-generation piglets originating from different selection scenarios for direct (\({\mathbf{H}}_{{\mathbf{D}}} {\mathbf{C}}_{{\mathbf{M}}} - {\mathbf{C}}_{{\mathbf{D}}} {\mathbf{C}}_{{\mathbf{M}}}\)) or maternal (\({\mathbf{C}}_{{\mathbf{D}}} {\mathbf{H}}_{{\mathbf{M}}} - {\mathbf{C}}_{{\mathbf{D}}} {\mathbf{C}}_{{\mathbf{M}}}\)) effects only or their combination (\({\mathbf{H}}_{{\mathbf{D}}} {\mathbf{H}}_{{\mathbf{M}}} - {\mathbf{C}}_{{\mathbf{D}}} {\mathbf{C}}_{{\mathbf{M}}}\))