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Abstrak (Bhs. Indonesia)

Penelitian bertujuan untuk mengkaji pengaruh imbangan I. zollingeriana, singkong dan rumput gajah yang berbeda terhadap kecernaan bahan kering dan organik secara in vitro. Penelitian dilaksanakan mulai 27 Maret 2018 sampai 3 April 2018 di Laboratorium Ilmu Nutrisi dan Makanan Ternak Fakultas Peternakan Universitas Jenderal Soedirman, Purwokerto. Penelitian menggunakan metode eksperimental secara in vitro dan menggunakan rancangan acak lengkap (RAL) dengan 4 perlakuandan 5 ulangan. Materi yang digunakan dalam penelitian yaitu cairan rumen berasal sapi lokal dewasa, rumput gajah, I. zollingeriana dan singkong. Perlakuan yang diuji yaitu P0 (100% rumput gajah), P1 (75% rumput gajah + 9%I. zollingeriana +16% singkong),P2 (50% rumput gajah + 18% I. zollingeriana + 32% singkong) dan P3 (25% rumput gajah + 27% I. zollingeriana + 48% singkong). Peubah yang diukur adalah kecernaan bahan kering dan kecernaan bahan organik. Data yang diperoleh dianalisis sidik ragam dan dilanjutkan dengan uji Duncant new multiple range test. Hasil penelitian menunjukan bahwa perlakuan berpengaruh sangat nyata terhadap kecernaan bahan kering dan bahan organik (P<0,01). Berdasarkan uji lanjut DMRT bahwa meningkatnya imbangan I. zollingeriana dan Singkong meningkatkan kecernaan bahan kering dan organik (P< 0,01). Penambahan I. zollingeriana dan singkong (P1, P2, P3) meningkat secara nyata (P<0,05)  dibanding dengan pakan kontrol (P0) yang tidak ditambah I. zollingeriana dan singkong, dengan nilai tertinggi kecernaan bahan kering (P3) 38,37% dan kecernaan bahan organik 36,52%. Disimpulkan bahwa imbangan I. zollingeriana dan singkong dapat digunakan sebagai sumber protein dan karbohidrat fermentable bagi ternak ruminansia.

Abtrak (Bhs. Inggris)

The objective of this research was to study the effect of the balance I. zollingeriana, cassava and elephant grass on dry matter and organic digestiblity according to in vitro. The research was held on March 27th 2018 until April 3rd 2018 at Animal Nutrition and Feed Laboratory, Faculty of Animal Science, Jenderal Soedirman University, Purwokerto. The study was operated experimental method according to in vitro and arranged in completely randomized design (CRD) by 4 treatments and 5 replications. The materials used in were rumen fluid by local cattle, elephant grass, I. zollingeriana and cassava. The treatments were P0 (100% EG), P1 (75% EG + 9% I. zollingeriana + 16% Cassava), P2 (50% EG + 18% I. zollingeriana + 32% cassava) dan P3 (25% EG  + 27% I. zollingeriana +48% cassava). The variables were dry matter and organic digestiblity. The data were processed by variance analyzeand advanced by Duncant new multiple range test. The result was showed treatments had extreamly significant effected on dry matter and organic digestion (P<0.01). Depend on advanced test by DMRT that rising ratio of  I. zollingeriana and cassava able to enhance dry matter and organic digestiblity (P<0.01). The addition I. zollingeriana and cassava on the treatments (P1, P2, P3) had significant effected (P<0.05) than the control (P0). The highest value was P3 that 38.37% on dry matter and 36.52% on organic digestiblity. The conclusion that rationingof I. zollingeriana and cassava able to utilize as protein source and carbohydrate fermentable for ruminants.

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