PEMANFAATAN TANDAN KOSONG SAWIT FERMENTASI YANG DIKOMBINASIKAN DENGAN DEFAUNASI DAN PROTEIN BY PASS RUMEN TERHADAP PERFORMANS TERNAK DOMBA [Utilization of Fermented Palm Bunches Trash Combined with Defaunation and Rumen By Pass Protein on Sheep Performance]

Abstract

PEMANFAATAN TANDAN KOSONG SAWIT FERMENTASI YANG DIKOMBINASIKAN DENGAN DEFAUNASI DAN PROTEIN BY PASS RUMEN TERHADAP PERFORMANS TERNAK DOMBA [Utilization of Fermented Palm Bunches Trash Combined with Defaunation and Rumen By Pass Protein on Sheep Performance] S. A. Akbar Fakultas Pertanian Universitas Mahaputra Muhammad Yamin, Solok Received August 14, 2006; Accepted February 28, 2007 ABSTRAK Suatu penelitian untuk mengkaji pemanfaatan tandan kosong sawit fermentasi yang dikombinasikan dengan defaunasi dan protein by pass rumen terhadap performans domba. Penelitian menggunakan 20 ekor ternak domba lokal yang secara acak dialokasikan dalam rancangan acak kelompok dengan 4 macam ransum sebagai perlakuan yaitu A1= ransum kontrol (rumput lapangan), A2 = tandan kosong sawit fermentasi, A3 = tandan kosong sawit fermentasi yang disuplementasi dengan tepung buah lerak 4% dan A4 = tandan kosong sawit fermentasi yang disuplementasi dengan tepung buah lerak 4% dan tepung daun kaliandra 10%. Lima macam kelompok domba sebagai ulangan yaitu B1 = 8,80 – 9,00 kg, B2 = 7,00 kg, B3 = 6,50 – 6,80 kg, B4 = 6,00 kg dan B5 = 4,00 – 5,00 kg. Hasil penelitian menunjukkan bahwa perlakuan berpengaruh sangat nyata (P < 0,01) terhadap performans ternak domba. Tandan kosong sawit fermentasi, disuplementasi dengan tepung buah lerak sebagai sumber defaunasi dan tepung daun kaliandra sebagai sumber protein by pass dapat meningkatkan konsumsi ransum, pertambahan bobot badan, retensi nitrogen dan efisiensi ransum. Dengan demikian tandan kosong sawit dapat digunakan sebagai pengganti rumput lapangan dalam ransum ternak domba. Kata kunci: tandan kosong sawit, fermentasi, defaunasi, by pass protein, performan ABSTRACT The research was done to study the effects of fermented palm bunches trash which was combined with defaunation, and rumen by pass protein on sheep performance. Twenty local sheep allocated at random were used in a randomized block design with 4 kinds of feeding as the treatments. These treatments were A1 = control feeding (grass), A2 = fermented palm bunches trash, A3 = fermented palm bunches trash which was supplemented by 4% Sapindus rarak and A4 = fermented palm bunches trash which was supplemented by 4% Sapindus rarak and 10% callyandra. Five blocks of sheep were used as replications, they were B1 = 8.80 – 9.00 kg; B2 = 7.00 kg; B3 = 6.50 – 6.80 kg; B4 = 6.00 kg; and B5 = 4.00 – 5.00 kg. The result of the experiment showed that there was highly significant different (P < 0.01) of the treatment toward the sheep performance. Fermented palm bunches trash which was supplemented by Sapindus rarak as the source of defaunation and Callyandra as the source of protein by pass could increase daily weight gained, feeding consumption, nitrogen retention and feeding eficiency of the local sheep. It was concluded that palm bunches trash could substitute grass portion in sheep diet. Keywords : palm bunches trash, fermentation, defaunation, by pass protein, performance