Removal due to anestrous was higher (Pr0.093) in female piglets of 410–990 g (22.9%)
compared with the other BiW classes (overall 9.6%).There were no differences among BiW classes in thefirst
(P¼0.480) and second (P¼0.400) farrowing rate but piglets of 1000–1160 g and 1510–1610 g had lower third
farrowing rate (P¼0.041) than piglets weighing41620 g.)