Saturday , 21 October 2017
UPDATE :
You are here: Home >> Majalah Ilmiah Universitas Mataram >> RESPONS TERMOREGULASI SAPI DARI BANGSA BERBEDA YANG DIBERI NAUNGAN ATAU TANPA NAUNGAN PADA PEMBERIAN PAKAN BERBEDA

RESPONS TERMOREGULASI SAPI DARI BANGSA BERBEDA YANG DIBERI NAUNGAN ATAU TANPA NAUNGAN PADA PEMBERIAN PAKAN BERBEDA

L. Wira Pribadi, Adi Sudono dan Bagus Purwanto

Abstract

An experiment was conducted to study heat tolerance of dairy and draught cattle based on thermoregulatory responses under different feed intake level. Four treatments were used in this experiment, which were 75% TDN with shade (I) 75% TDN no shade (II); 125% TDN with shade (III), and 125% no shade (IV). Environmental factors and thermoregulatory responses were then measured in this experiment. Evironmental factors were air temperature, relative humidity, temperature humidity index (THI), radiation and air movement. Thermoregulatory responses were mean skin temperature (mTs), rectal temperature (Tr), body temperature (Tb) respiration rate (RR), heart rate (HR) and daily body weight gain. Result showed that thermoregulatory respons Ongole breed lower than Holstein breed (P<0.05). The mTs Tr, Tr and RR of Ongole breed were lower than Holstein breed (P<0.05). On Holstein breed there were significant different in mTs, Tr, and Tb, but on Ongole breed only mTs and Tb. Ob both breed cattle, mTs, Tr and Tb were affected by hight level of feed  and not environment condition. The RR of Holstein breed were higher than ongole breed (P<0.05), but HR no significant different. HR and RR were higher on cattle that got hight level of feed. Ongole breed was more tolerant compared with Holstein breed under each level of feed (P<).05). Level of feed did not affect heat tolerance on each breed cattle. Growth rate of Holstein breed was lower than Ongole breed under low level feed intake. Under the high level of feed intake, Holstein breed growth was faster than ongole. It was concluded that on the high level of feed Holstein breed showed higher thermoregulatory responses than ongole breed. Thermoregulatory responses were affected by level of feed, especially in hot environment. Under low level of feed intake, Holstein showed lower growth rate

Download PDF

About Fahrul Irawan

Scroll To Top