Substitusi Bungkil Kedelai dengan Defatted Black Soldier Fly (BSF) Larvae Meal pada Konsentrat Starter terhadap Fermentasi Rumen Domba

Abstract

Tujuan penelitian ini untuk mengevaluasi pengaruh substitusi sebagian bungkil kedelai dengan defatted Black Soldier Fly (BSF) larvae meal terhadap fermentasi rumen (in vivo) domba masa pertumbuhan. Penelitian menggunakan 10 ekor domba lokal (berat badan rata-rata 13,95 ± 3,07 kg) yang dibagi rata menjadi 2 perlakuan pakan, yaitu: P1 = konsentrat starter (22% bungkil kedelai) dan P2 = konsentrat starter (11% bungkil kedelai + 10% defatted BSF larvae meal. Peubah yang diukur adalah pH rumen, konsentrasi VFA total, VFA parsial, NH3, gas metan, populasi protozoa rumen dan bakteri rumen. Data dianalisis menggunakan Independent Sample T-test. Hasil penelitian ini menunjukkan bahwa 10% defatted BSF larvae meal dalam konsentrat starter cenderung meningkatkan (P=0,07) proporsi butirat, namun tidak mempengaruhi (P>0,05) pH rumen, populasi bakteri total dan protozoa, konsentrasi NH3, gas metan dan VFA total. Penggunaan 10% defatted BSF larvae meal untuk mensubstitusi 50% bungkil kedelai di dalam konsentrat starter tidak berpengaruh negatif terhadap fermentasi rumen (in vivo) domba masa pertumbuhan.

The aim of this study was to evaluate the effect of partial substitution of soybean meal with defatted Black Soldier Fly (BSF) larvae meal on the rumen fermentation (in vivo) of growing lambs. This experiment used 10 local growing lambs (average body weight of 13.95 ± 3.07 kg) which are equally allocated into 2 dietary treatments, namely: P1 = starter concentrate (22% soybean meal) and P2 = starter concentrate (11% soybean meal + 10% defatted BSF larvae meal). The variables measured were rumen pH, total VFA concentration, partial VFA, NH3, methane, population of rumen protozoa and bacteria. Data were analyzed using an Independent Sample T-test. The result showed that 10% defatted BSF larvae meal in starter concentrate tended to increase (P=0.07) the proportion of butyrate, while it did not affect (P>0.05) rumen pH, population of bacteria total and protozoa, concentration NH3, methane, and total VFA. It can be concluded that 10% defatted BSF larvae meal to substitute 50% of SBM in starter concentrate did not negatively affect rumen fermentation (in vivo) of growing lambs.