Kandungan Nutrien dan Kualitas Fermentasi Silase Campuran Hijauan Kacang Koro Pedang (Canavalia ensiformis) dan Pelepah Sawit

Abstract

Ketersediaan hijauan pakan yang fluktuatif mendorong pemanfaatan hijauan kacang koro pedang (Canavalia ensiformis) dan pelepah sawit melalui teknologi silase. Penelitian ini bertujuan menganalisis pengaruh campuran hijauan kacang koro pedang dan pelepah sawit dengan penambahan asam terhadap kandungan nutrien dan kualitas fermentasi silase. Penelitian menggunakan rancangan acak lengkap faktorial 3 × 2 dengan 5 ulangan. Faktor A yaitu proporsi hijauan kacang koro pedang dan pelepah sawit (100%+0%, 75%+25%, dan 50%+50%), sedangkan faktor B yaitu penambahan campuran asam asetat dan propionat dengan dosis 1:1 sebanyak 0 dan 5 mL kg-1 bahan segar. Hasil penelitian menunjukkan bahwa proporsi hijauan berpengaruh nyata (P<0,05) menurunkan kandungan protein kasar, N-NH3, kadar HCN, dan meningkatkan serat kasar. Penambahan asam berpengaruh nyata (P<0,05) pada kandungan NDF dan WSC. Terdapat interaksi nyata (P<0,05) antara proporsi hijauan dengan penambahan asam terhadap pH dan nilai Fleigh. Semua perlakuan menunjukkan kualitas fermentasi yang baik, pencampuran memengaruhi kandungan nutrien dan fermentasi menurunkan kandungan HCN.

The fluctuating availability of forage has encouraged the use jack bean forage (Canavalia ensiformis) and oil palm fronds through silage technology. This study aimed to analyse the effect of mixtures jack bean forage and oil palm fronds with the addition of acid additives on nutrient content and silage fermentation quality. The study employed a 3 × 2 factorial completely randomised design with five replicates. Factor A was the proportion of jack bean forage and oil palm fronds (100%+0%, 75%+25%, and 50%+50%), whilst factor B was the addition of a mixture of acetic and propionic acids at a 1:1 ratio of 0 and 5 mL kg-1 of fresh material. The results showed that the proportion of forage had a significant effect (P<0.05) on reducing crude protein, N-NH3 and HCN content, as well as increasing crude fibre. The addition of acids had a significant effect (P<0.05) on NDF and WSC content. There was a significant interaction (P<0.05) between the proportions of jack bean forage and oil palm fronds and the addition of acid on pH and Fleigh value. The silage in all treatments showed good fermentation quality, with mixing affecting the nutrient content and fermentation reducing the HCN content.