The Effect of levels of soybean protein in commercial concentrate on growth rate of female goat

English. A feeding trial to study the effect of different levels of protein on growth rate of 15 female goats was carried out for 12 weeks at Cilebut Experimental Station, Bogor. The levels of protein in the diet were made by adding different levels of soybean cake (SOC) in the concentrate. The animals were divided into 3 treatment groups, namely R1 = 100 percent GT-03 (16 percent CP), R2 = 85 percent GT-03 + 15 percent SOC, R3 = 70 percent GT-03 + 30 percent SOC (24 percent CP). They were offered elephant grass ad libitum and concentrate (3 percent BW). There was no different in dry matter intake between treatments (468, 435 and 431 g/h/d for R1, R2 and R3 respectively). Growth rate was lowest for R3 (61.4 g/h/d), followed by R2 (77,1 g/h/d) and R1 (86,9 g/h/d). The provision of SOC to increase protein content in the diet resulted in lower growth rate

unknown. Percobaan ini dilakukan di Stasiun Percobaan Cilebut, Bogor selama 12 minggu. Materi menggunakan 15 ekor kambing betina muda dengan rata-rata berat badan 9,97 kurang lebih 1,50 kg. Ternak secara acak dibagi tiga kelompok masing-masing lima ekor dengan perlakuan ransuman konsentrat yaitu RI = 100 persen GT-03 (ransum komersial, Pr 16 persen), R2 = 85 persen GT-03 + 15 persen bungkil kedelai (Pr. 20 persen) dan R3 = 70 persen GT-03 + 30 persen bungkil kedelai (Pr. 24). Setiap kambing mendapat ransum dasar rumput gajah secara ad libitum, sedangkan konsentrat 3 persen berat badan. Penelitian menggunakan Rancangan Acak Lengkap. Parameter yang diukur yaitu konsumsi pakan dan perubahan berat ternak. Hasil penelitian menunjukkan konsumsi bahan kering tidak berbeda nyata (P0,05) yaitu 468, 435 dan 431 g/ek/h masing-masing untuk perlakuan R1, R2 dan R3. Ransum R3 nyata (P0,01) memberikan pertambahan berat badan (PBB) lebih kecil dibanding R2 dan R1. Rata-rata PBB dengan ransum R1