Pengaruh Suplementasi PFAD Terproteksi Terhadap Fermentabilitas dan Kecernaan Ransum Sapi Perah Secara In Vitro

Abstract

Penelitian ini bertujuan untuk mengevaluasi efektivitas taraf pemberian Palm Fatty Acid Distillate (PFAD) terproteksi dalam bentuk sabun kalsium terhadap fermentabilitas rumen dan kecernaan nutrien secara in vitro. Penelitian menggunakan rancangan acak kelompok (RAK) dengan 5 perlakuan dan 3 kelompok yaitu pada taraf, P0 (Hijauan 50%: Konsentrat 50%), P1 (Ransum P0 + PFAD terproteksi CaCO3 1%), P2 (Ransum P0 + PFAD terproteksi CaCO3 2%), P3 (Ransum P0 + PFAD terproteksi CaCO3 3%), dan P4 (Ransum P0 + PFAD terproteksi CaCO3 4%). Parameter yang diamati meliputi pH rumen, populasi bakteri, protozoa, konsentrasi NH3, VFA total, VFA parsial, kecernaan bahan kering (KCBK), bahan organik (KCBO), dan fraksi serat (NDF dan ADF). Hasil penelitian menunjukkan bahwa suplementasi PFAD terproteksi tidak berpengaruh nyata terhadap pH rumen, namun berpengaruh nyata terhadap populasi mikroba, konsentrasi NH3, VFA total, serta kecernaan nutrien. Peningkatan taraf PFAD menurunkan populasi bakteri dan protozoa serta kecernaan nutrien, tetapi meningkatkan konsentrasi VFA total. VFA parsial tidak menunjukkan perbedaan nyata antar perlakuan. Simpulan dari penelitian ini yaitu taraf pemberian terbaik diperoleh pada level 2%–3% karena mampu menjaga keseimbangan fermentasi rumen, meningkatkan efisiensi pemanfaatan energi dan nitrogen, serta mempertahankan kecernaan nutrient

This study aimed to evaluate the effectiveness of different inclusion levels of protected Palm Fatty Acid Distillate (PFAD) in the form of calcium soap on rumen fermentability and nutrient digestibility using an in vitro method. The experiment was conducted using a randomized complete block design (RCBD) consisting of five treatments and three blocks. The treatments were: P0 (50% forage : 50% concentrate), P1 (P0 ration + 1% PFAD protected with CaCO3), P2 (P0 ration + 2% PFAD protected with CaCO3), P3 (P0 ration + 3% PFAD protected with CaCO3), and P4 (P0 ration + 4% PFAD protected with CaCO3). The observed parameters included rumen pH, bacterial and protozoal populations, NH3 concentration, total volatile fatty acids (VFA), individual VFA, dry matter digestibility (DMD), organic matter digestibility (OMD), and fiber fraction digestibility (NDF and ADF). The results showed that protected PFAD supplementation had no significant effect on rumen pH but significantly affected microbial populations, NH3 concentration, total VFA concentration, and nutrient digestibility. Increasing PFAD supplementation levels reduced bacterial and protozoal populations as well as nutrient digestibility, while increasing total VFA concentration. Partial VFA concentrations did not differ significantly among treatments. It can be concluded that the optimal supplementation level was 2%–3%, as it maintained rumen fermentation balance, improved the efficiency of energy and nitrogen utilization, and preserved nutrient digestibility.