Respon Termoregulasi Sapi Perah Laktasi Pada Kandang Closed dan Open House Tie Stall | Thermoregulatory Response of Lactation Dairy Cows in Closed and Open House Tie Stalls System

Penelitian ini bertujuan menganalisis respon termoregulasi sapi perah laktasi pada kandang closed house (CH) dan open house (OH) tie stall. Penelitian ini menggunakan 10 sapi perah Friesian Holstein (FH) periode laktasi 2-4. Peubah yang diamati meliputi mikroklimat kandang (suhu, kelembapan, kecepatan angin, dan Temperature Humidity Index (THI)) dan respon termoregulasi (denyut jantung, suhu rektal, laju respirasi, dan suhu permukaan bagian tubuh). Data dianalisis secara deskriptif dan dilanjutkan dengan uji T tidak berpasangan, ANOVA, dan korelasi Spearman. Hasil penelitian menunjukkan mikroklimat kandang pada siang hari antara CH dan OH berbeda nyata (P<0,05) dengan suhu dan THI lebih rendah serta kelembapan dan kecepatan angin lebih tinggi CH dibandingkan OH. Respon termoregulasi seperti laju respirasi sapi di pagi hari berbeda nyata (P<0,05) dengan CH lebih rendah dibandingkan OH. Sistem kandang yang berbeda berpengaruh terhadap mikroklimat kandang, respon termoregulasi sapi perah laktasi.

This study aimed to analyze the thermoregulatory responses of lactating dairy cattle in two system: closed house (CH) and open house (OH) tie stall systems. This study involved in a total of ten Friesian Holstein (FH) cows, lactation 2-4 in the lactation period. The observed variables included the microclimate (temperature, humidity, wind speed, and Temperature Humidity Index(THI)) and thermoregulatory responses (heart rate, rectal, temperature, respiration rate, and body surface temperature). Data were analyzed descriptively followed by independent T-test, ANOVA, and correlation Spearman. The result of the microclimate at day time differed significanly between CH and OH (P<0,05) with CH exhibiting lower temperature and THI, as well higher humidity and wind speed than OH. Thermoregulatory responses was differed significantly (P<0,05) with cows in CH showing lower respiration rate compared to OH. To conclude, the type of housing system can significantly affect the microclimate, thermoregulatory responses in dairy cattle lactation.