Substitutions of soybean meal with enriched palm kernel meal in laying hens diet

  • Sinurat A
  • Purwadaria T
  • Ketaren P
  • et al.
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Abstract

ABSTRAK Sinurat AP, Purwadaria T, Ketaren, PP, Pasaribu T. 2014. Penggantian bungkil kedelai dalam ransum ayam petelur dengan bungkil inti sawit yang sudah diperkaya nilai gizinya. JITV 19(3): 184-192. DOI: http://dx.doi.org/10.14334/jitv.v19i3.1081 Serangkaian penelitian dilakukan untuk menggantikan bungkil kedelai (SBM) dengan bungkil inti sawit (PKC) dalam ransum ayam petelur. Tahap pertama dilakukan untuk meningkatkan kandungan protein dan asam amino BIS melalui proses fermentasi dan dilanjutkan dengan penambahan enzim untuk meningkatkan kecernaan asam amino. Selanjutnya dilakukan uji biologis untuk mengetahui efektifitas PKC yang sudah difermentasi (FPKC) dan ditambahkan enzim (EFPKC) untuk menggantikan SBM didalam ransum ayam petelur. Nilai energy (AME) dari PKC, FPKC dan EFPKC diukur dengan menggunakan ayam broiler dan dilanjutkan dengan pengukuran nilai asam amino tercerna pada ileal (IAAD). Nilai AME dan IAAD dari EFPKC kemudian digunakan untuk meramu ransum penelitian. Ransum diberikan pada ayam petelur umur 51 minggu selama 8 minggu. Lima (5) jenis ransum disusun dengan kandungan gizi yang sama, tetapi SBM diganti dengan EFPKC secara bertingkat. Ransum perlakuan terdiri dari 1. Kontrol (tanpa EFPKC), 2. 25% SBM dalam ransum Kontrol diganti dengan EFPKC, 3. 50% SBM dalam ransum Kontrol diganti dengan EFPKC, 4. 75% SBM dalam ransum Kontrol diganti dengan EFPKC and 5. 100% of SBM dalam ransum Kontrol diganti dengan EFPKC. Setiap ransum perlakuan diberikan pada 24 ekor ayam (6 ulangan, 4 ekor/ulangan). Hasil penelitian menunjukkan bahwa fermentasi PKC meningkatkan protein kasar dan asam amino, kecuali threonin dan arginin, tetapi menurunkan AME. Penambahan enzim pada FPKC meningkatkan nilai IAAD. Akan tetapi hanya enzim BS4 yang dapat meningkatkan nilai AME pada EFPKC. Uji biologis menunjukkan bahwa sekitar 25 hingga 50% bungkil kedelai didalam ransum dapat diganti dengan bungkil inti sawit yang sudah difermentasi dan ditambahkan enzim tanpa meyebabkan gangguan yang berarti pada performan ayam petelur. ABSTRACT Sinurat AP, Purwadaria T, Ketaren, PP, Pasaribu T. 2014. Substitutions of soybean meal with enriched palm kernel meal in laying hens diet. JITV 19(3): 184-192. DOI: http://dx.doi.org/10.14334/jitv.v19i3.1081 A series of experiment was conducted in order to substitute soybean meal (SBM) with palm kernel cake (PKC) as a protein source in laying hens diet. First experiment was to increase its protein and amino acids content by fermentation process and followed by enzymes supplementation to improve nutrient digestibilities. Second experiment was conducted to evaluate the effectiveness of enzyme-supplemented fermented palm kernel cake (EFPKC) to replace SBM in laying hens diet. The energy (AME) of the PKC, the fermented PKC (FPKC) and the EFPKC was measured by ileal amino acids digestibility (IAAD) in broilers. The AME and the IAAD values of the EFPKC were used for diet formulation in the feeding trial. A feeding trial was performed in laying hens, aged 51 weeks for 8 weeks egg production. Five diets with different levels of substitution of SBM with EFPKC but similar nutrient contents were formulated, i.e.: 1. Control (without EFPKC), 2. 25% of SBM in control diet substituted with EFPKC, 3. 50% of SBM in control diet substituted with EFPKC, 4. 75% of SBM in control diet substituted with EFPKC and 5. 100% of SBM in control diet substituted with EFPKC. Each diet was fed to 24 hens (6 replicates of 4 birds/ replicate). Results of the experiment showed that the fermentation of PKC increased the crude protein and most of the amino acids contents except the threonine and arginine, but decreased its AME. Supplementation of enzymes (BS4 or CE) improved the ileal amino acid digestibilities of the fermented PKC. However, only BS4 enzymes increased the AME of the EFPKC. About 25% to 50% of the SBM in the diet could be substituted with the EFPKC without any detrimental effect on the performances of laying hens.

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APA

Sinurat, A. P., Purwadaria, T., Ketaren, P. P., & Pasaribu, T. (2015). Substitutions of soybean meal with enriched palm kernel meal in laying hens diet. Jurnal Ilmu Ternak Dan Veteriner, 19(3). https://doi.org/10.14334/jitv.v19i3.1081

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