PERBANDINGAN PEMBERIAN LEVEL PROTEIN BERBEDA TERHADAP RESPONS FISIOLOGIS SAPI BRAHMAN CROSS
Abstract
Penelitian ini bertujuan untuk mengetahui pengaruh pemberian protein dengan level protein berbeda terhadap respons fisiologis sapi Brahman Cross (BX). Penelitian ini dilaksanakan pada bulan April--Mei 2022 di KPT Maju Sejahtera, Desa Wawasan, Kecamatan Tanjung Sari, Lampung Selatan. Sampel yang digunakan yaitu sapi jantan BX berumur 3--4 tahun dan bobot 310--450 kg sebanyak 40 ekor yang ditentukan dengan purposive sampling yaitu 20 ekor diberikan perlakuan protein 12% dan 20 ekor diberikan perlakuan 13--14%. Peubah yang diamati dalam penelitian ini ialah respons fisiologis ternak meliputi suhu rektal sapi (°C), frekuensi pernafasan (kali/menit), frekuensi denyut jantung (kali/menit), dan indeks daya tahan panas (HTC), serta iklim mikro kandang yang meliputi suhu udara, kelembaban relatif (RH), dan Temperature Humidity Index (THI). Data yang didapatkan dianalisis menggunakan Uji-tidak berpasangan. Hasil penelitian menunjukkan rataan Temperature Humidity Index di lokasi penelitian sebesar 83,38. Rataan frekuensi respirasi siang hari pada sapi BX dengan perlakuan kadar protein 12% dan 13--14% berturut turut yaitu 30,90 ± 4,41 kali/menit dan 31,80 ± 5,10 kali/menit. Rataan frekuensi denyut jantung siang hari pada ternak sapi BX dengan perlakuan kadar protein 12% dan 13--14% berturut turut yaitu 60,80 ± 8,52 kali/menit dan 77,75 ± 10,33 kali/menit. Rataan suhu rektal siang hari pada sapi BX dengan perlakuan kadar protein 12% dan 13--14% berturut turut yaitu 38,48 ± 0,39°C dan 38,93 ± 0,40°C. Daya tahan panas memiliki rataan pada sapi jantan BX dengan perlakuan kadar protein 12% dan 13--14% berturut turut yaitu 2,18 ± 0,07 dan 2,26 ± 0,09. Pada penelitian ini dapat disimpulkan bahwa kondisi respons fisiologis dan daya tahan panas pada sapi BX pemberian protein 12% lebih baik dibandingkan dengan pemberian protein 13--14%.
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