Aklimatisasi sapi PO dan sapi bali merespons perubahan cuaca di Kabupaten Merauke Papua

Abstract

The objective of this study was to determine the physiological responses and acclimatization of Ongole Crossbred (OC) cattle (Bos indicus) and bali cattle (Bos javanicus) in response to weather changes in Merauke district. The experiment was carried out in Wasur Village II, Merauke district. Eighteen OC cattle and 12 bali cattle, age ranged between 2-5 years were used. In the morning the cattle were removed from the cage and placed in the ranch and in the evening were put back into the cage. Meteorological data were recorded in the experiment environment where cattles were located during 8 am until 4 pm, included dry bulb temperature, wet bulb temperature, wind speed, and solar radiation. Relative humidity (RH) and Temperature Humidity Index (THI) were calculated. The physiological responses (rectal temperature, skin temerature, body temperature, respiration rate, and pulse rate) of OC and bali cattles were monitored every 21 days on April and May. Data were analyzed using the repeated measurement GLM procedure. Simple linear regression procedures was utilized to establish acclimatization ability from each breed of cattle. The different weather between west monsoon on April and east monsoon on May were showed that bali cattles were able to maintain the physiological responses during monsoon changed. Rectal temperature, skin temperature, and respiratory rate data indicated that bali cattles acclimatization with east monsoon (P>0,05), while Ongole Crossbred cattles that should acclimatization with weather changes (P <0,05). Bali cattle have the ability termoregulatory better than PO cattle.