Table 3.

Point scoring scale for behavioural signs of oestrus^a

Oestrus signs	Points
Flehmen	3
Restlessnessb	5
Sniffing the vulva of another cow	10
Mounted but did not stand	10
Resting chin on the back of another cow	15
Mounting the rear of another cow	35
Mounting the head of another cow	45
Stood-to-be-mounted (STBM)	100

^aEach time an oestrus sign was observed, the assigned number of points were recorded (Van Eerdenburg et al., 2002).

^bCan only be recorded once during a single 30-min observation period.