Update Artikelilmiah: 15122

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Abstrak (Bhs. Indonesia)

Penelitian ini bertujuan untuk mengetahui pengaruh dan level penambahan limbah bawang putih dalam pakan kambing perah terhadap produksi gas total dan gas methan. Materi penelitian menggunakan cairan rumen kambing perah, pakan basal kambing perah tersusun atas 60% hijauan, 35% ampas tahu dan 5% konsentrat (PK : 11.90%, SK : 28.57%, TDN : 60.94%), ekstrak limbah bawang putih (Allium sativum), seperangkat alat pengukur produksi gas total dan gas methan secara in vitro. Metode penelitian yang digunakan adalah eksperimental dengan Rancangan Acak Lengkap (RAL). Perlakuan yang diuji yaitu level ekstrak limbah bawang putih yang disuplementasikan dalam pakan kambing perah. Level ekstrak limbah bawang putih yang disuplementasikan yaitu 125 ppm (R1), 250 ppm (R2), 375 ppm (R3) dan 500 ppm (R4). Hasil analisis variansi menunjukkan perlakuan berpengaruh nyata (P<0.05) terhadap gas total dan berpengaruh sangat nyata (P<0.01) terhadap produksi gas methan. Hasil rataan produksi gas total  berkisar antara  13.78 – 15.60 ml/g pakan, sedangkan rataan produksi gas methan berkisar antara 6.85 – 10.13 ml/g pakan. Kesimpulan dari penelitian ini adalah level suplementasi ekstrak limbah bawang putih (Allium sativum) yang optimal menurunkan emisi gas methan pada kambing perah secara in vitro  adalah 100.62 ppm.

Abtrak (Bhs. Inggris)

The aim of this research was to mesure the effect and level of garlic extract supplementation in dairy goat diet on total gas and methane gas productions. Materials used in this research were dairy goat rumen fluid, dairy goat basal feed consisting of forage 60%, tofu 35% and concentrate 5% (CP : 11.90%, CF : 28.57%, TDN : 60.94%), garlic waste (Allium sativum) extract, a set of tools to calculate the total gas production and methan production by in vitro. This experimental research used completely randomized design (CRD). The treatment tested was the level of garlic waste extract which supplemented in dairy goat diet. The levesl of supplemented garlic waste extract were 125 ppm (R1), 250 ppm (R2), 375 ppm (R3) and 500 ppm (R4). The results showed that the average values of total gas production of R0, R1, R2, R3 and R4 were between  13.78 – 15.60 ml/g of feed, while the average values of methane gas production of R0, R1, R2, R3 and R4 were between 6.85 – 10.13 ml/g of feed. The results of variance analyses showed that the treatment decreased total gas production significantly (P<0.05) and decreased methane gas production very significantly (P<0.01). This experiment concludes that suplementation of garlic waste  (Allium sativum) that decreases methane gas production optimaly is at 100.62 ppm level.

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