Abstract
(Feeding agricultural crop residues (groundnut straw, corn straw, sugarcane straw) to the pH evolution, N-NH3 and VFA in the cow rumen)ABSTRACT. The goal of this study is to evaluate the condition of fermentation in the rumen of cows by administration of 3 types of feed fiber agricultural crop residues (Groundnut Straw (GS), Corn Straw (CS) and Sugarcane Tops (ST)). Single feeding wascarried out at 2 Holstein Friesian Crossbred (HFC) cows with the age of 4-5 by fistula rumen.This study was conducted 20 days and with a 14-dayadaptation period.At the end of the adaptation period, rumen fluid was collected to measure pH, N-NH3and VFA based on feed treatment percow.Collection of rumen fluid was simultanous conducted for 24 hours at 27 time points decision.The results of the experiment showed that the level of pH for GS, CS and ST was 7.02 + 0.29; 6.54 + 0.16 and 6.54 + 0.14 respectively. The level of N-NH3 was 4.90 + 2.10 mg/100 ml of rumen fluid; 7.36 + 3.10 mg/100 ml of rumen fluid; 2.26 + 0.85 mg/100 ml of rumen fluidfor GS, CS and ST, respectively. Meanwile, the level of VFA was 57.44 + 12.75 mmol/l ml, 64.84 + 10.82 mmol/l and 44.13 + 6.66 mmol/l ml of rumen fluid, respectively.
Highlights
The goal of this study is to evaluate the condition of fermentation in the rumen of cows by administration of 3 types of feed fiber agricultural crop residues (Groundnut Straw (GS), Corn Straw (CS) and Sugarcane Tops (ST))
Dalam : Kursus Singkat Teknik Evaluasi Pakan Ruminansia, Fak. Peternakan UGM, Yogyakarta
Summary
Penelitian ini menggunakan 2 ekor sapi betina Peranakan Friesian Holstein (PFH) tidak berproduksi dan berfistula dengan umur sekitar 4-5 tahun. Penelitian ini dilakukan dengan 3 perlakuan pakan yaitu jerami kacang tanah (JKT) jerami jagung (JJG) dan pucuk tebu (PT). Masing-masing pakan diberikan kepada ternak secara tunggal, dan setiap tahap pengambilan sampel masing-masing pakan yang diteliti berlangsung selama 20 hari. Pakan yang diberikan pada ternak fistula selama penelitian berlangsung sama dengan pakan yang diteliti, semua pakan yang diberikan/diteliti berasal dari daerah Yogyakarta dan sekitarnya. Pakan yang diberikan dalam bentuk segar dan telah dicacah dengan ukuran lebih kurang 5 cm. Periode adaptasi masingmasing perlakuan dilakukan selama 14 hari untuk pengukuran konsumsi pakan (bahan kering), dan selama 6 hari untuk pengukuran kecernaan. Pada akhir masa adaptasi dilakukan pengukuran kondisi fermentasi yaitu : pH, asam lemak volatil (VFA), dan amonia (NNH3)
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