Primipara in contrast to multipara had fever more frequently , higher rates of subclinical ketosis p. p. , metritis and lameness , higher numbers of sick cows in the first @ DIM , higher rates of stillbirths and dystocia , showed impaired involution of the uterus on day @ p. p. , fewer animals were cyclic during week @ p. p. and less animals were culled ( p < @ ) .