| Penulis/Author |
Ir. Hamdani Maulana, S.Pt., M.Sc., IPP (1); Ir. Panjono, S.Pt., MP., Ph.D., IPM., ASEAN Eng. (2); Prof. Dr. Ir. Endang Baliarti, SU. (3) ; Prof. Ir. Diah Tri Widayati, MP., Ph.D., IPM (4); Prof. Ir. I Gede Suparta Budisatria, M.Sc., Ph.D., IPU., ASEAN Eng. (5) |
| Abstrak/Abstract |
This study was aimed to assess the effect of seasons on the productivity of Bali cows
kept in oil palm plantation (OPP). The study used 20 Bali cows and 1 bull, which kept semiintensively without supplementary feeding. Cow’s reproductive data, grouped according to
birth time, dry season (DS) (May-October) and the rainy season (RS) (November-April) from
August 2016 to September 2018, were used. These data were used to determine calving
interval and calf mortality. Cows were weighed monthly to estimate dry matter consumption,
which was calculated using the Minson equations. Calves were weighed at birth and weaning.
Cow’s reproductive index (CRI) and cow’s productivity index (CPI) were calculated based on
reproductive data and weaning weight. Data were analysed using One way ANOVA. The result
showed that during the DS, the consumption was better (1.96%BW) compared to the RS
(1.83%BW) (P<0.01). Calf mortality was higher in the RS (19.05%) than the in DS (17.65%),
due to high rainfall and humidity. During the two seasons, calving interval, birth and weaning
weights, CRI and CPI of Bali cattle in OPP were relatively similar. It is concluded that the
seasons did not influence productivity of Bali cows kept in OPP. |
