Effects of different levels and duration of energy diets on oestrous behaviour of crossbred cows

Oestrous behavior was used as an indication to conduct artificial insemination (A1) in the female mammal. Thirty six crossbred Kedah-Kelantan (KK) cows were divided into two treatment groups; a single maintenance (GSM) and double maintenance, (GDM) energy level feed based on body weight requirement. Oestrous was synchronized using a chloprostenol intra vaginal progesterone releasing device (CIDR-B®). The cows were observed for 72 hours beginning at CIDR-B® removal. No differences were observed between GSM and GDM (P>0.05) in the first cycle of oestrous. However, the GSM group showed significant differences in vagina discharge and mounted behaviour (P