Isidro, R; Orihuela, A; Galina, CS; Martínez, L; Maquivar, M; Solano, J
(2005)
The influence of behavioural oestrus on the manifestation of oestrus and ovulation of herd mates was studied by ultrasonogrophical examination (US) of ovarian activity. Ten non-pregnant animals divided into two groups (A ...