Efektivitas Suplementasi Arginin dan Guanidinoacetic Acid dalam Ransum Rendah Energi pada Fase Finisher terhadap Kualitas Daging Ayam Broiler

Abstract

Penelitian ini bertujuan mengevaluasi efektivitas suplementasi arginin dan GAA dalam ransum rendah energi pada fase finisher terhadap kualitas daging ayam broiler. Penelitian dilakukan selama 35 hari menggunakan 600 ayam broiler strain Cobb dengan Rancangan Acak Lengkap (RAL) yang terdiri dari 6 perlakuan dan 10 ulangan, masing-masing ulangan menggunakan 10 ekor. Perlakuan terdiri atas ransum kontrol positif (T1: EM 3.100 kkal kg-1), ransum kontrol negatif (T2: EM 2.950 kkal kg-1), T3 (T2+GAA 600 g MT-1), T4 (T2+arginin 462 g MT-1), T5(T2+arginin 600 g MT-1), dan T6 (T2+arginin 900 g MT-1). Hasil penelitian menunjukkan bahwa, perlakuan tidak berpengaruh nyata terhadap pH daging (p>0,05). Suplementasi arginin 600 g MT-1 nyata menurunkan nilai drip loss pada penyimpanan 24 dan 48 jam, serta efektif mengoptimalkan warna daging dalam kisaran normal. Suplementasi arginin 900 g MT-1 menghasilkan kandungan protein, arginin, dan lisin pada daging tertinggi (90,34%; 4,43%; 6,64%), sedangkan GAA 600 g MT-1 menghasilkan kadar lemak terendah (6,87%). Simpulan dari penelitian ini adalah suplementasi arginin 600 g MT-1 efektif dalam mempertahankan kualitas daging ayam broiler pada ransum rendah energi fase finisher.

This study aimed to evaluate the effectiveness of arginine and GAA supplementation in low-energy finisher diets on the meat quality of broiler chickens. The study was conducted for 35 days using 600 Cobb broiler chickens in a Completely Randomized Design (CRD) consisting of 6 treatments and 10 replicates of 10 birds each. Dietary treatments included a positive control (T1: ME 3,100 kcal kg-1), a negative control (T2: ME 2,950 kcal kg-1), T3 (T2 + 600 g MT-1 GAA), T4 (T2 + 462 g MT-1 arginine), T5 (T2 + 600 g MT-1 arginine), and T6 (T2 + 900 g MT-1 arginine). pH was not significantly affected by dietary treatment (p>0.05). Supplementation with 600 g MT?¹ arginine significantly reduced drip loss at 24 and 48 h of storage and maintained meat color within the normal range. Supplementation with 900 g MT?¹ arginine produced the highest protein, arginine, and lysine contents (90.34%, 4.43%, and 6.64%), while 600 g MT?¹ GAA produced the lowest fat content (6.87%). In conclusion, 600 g MT?¹ arginine effectively maintained broiler meat quality under low-energy finisher diets.