Pengaruh Pemberian Probiotik Terhadap Performa Produksi Ayam Brolier (Gallus gallus domesticus) Strain Cobb500

Muhammad Taufiq Afif, drh. Clara Ajeng Artdita, M.Sc.

2026 | Tugas Akhir | D4 Teknologi Veteriner

Ayam broiler merupakan salah satu komoditas unggas penting dalam pemenuhan kebutuhan protein hewani masyarakat Indonesia. Peningkatan performa pertumbuhan ayam broiler sebagai komoditas unggas utama penghasil protein hewani sebelumnya didukung oleh penggunaan Antibiotic Growth Promoter (AGP); namun, penggunaan AGP telah dilarang akibat risiko residu dan resistensi antimikroba, sehingga diperlukan alternatif yang lebih aman. Tugas Akhir ini bertujuan untuk mengevaluasi pengaruh suplementasi probiotik dengan kandungan Bacillus coagulans DSM 32016 dan Bacillus licheniformis DSM 33806 terhadap performa pertumbuhan ayam broiler strain Cobb500. Desain eksperimental yang digunakan adalah Rancangan Acak Lengkap (RAL). Sebanyak 200 ekor ayam broiler dibagi menjadi dua kelompok, yaitu kelompok kontrol (C) dan kelompok perlakuan (TC) yang mendapat suplementasi probiotik dalam pakan sejak umur 1 hingga 35 hari. Probiotik diberikan dengan konsentrasi 1 × 10¹? CFU/g dan dosis 0,2 g/kg pakan. Parameter yang diamati meliputi bobot badan, rerata pertambahan bobot badan harian, rerata konsumsi pakan harian, dan rasio konsumsi pakan yang diukur setiap minggu selama periode pemeliharaan. Normalitas data diuji dengan Q-Q plot dan perbedaan rerata antar dua kelompok independen dianalisis menggunakan two-tailed independent two-sample t-test dengan tingkat kepercayaan 95% (? = 0,05). Analisis data dilakukan dengan software SAS version 9. Hasil studi menunjukkan BW dan ADG ayam kelompok TC secara signifikan lebih tinggi dibandingkan kelompok C pada minggu kedua hingga kelima (p < 0>p < 0>(p < 0>. Pemberian probiotik berpengaruh nyata dalam meningkatkan performa pertumbuhan ayam broiler strain Cobb500 dan berpotensi menjadi alternatif pengganti AGP.

Broilers are one of the most important poultry commodities for meeting the animal protein needs of the Indonesian population. Broiler growth performance was previously enhanced through the use of Antibiotic Growth Promoters (AGPs). However, AGPs have been banned due to the risks of antibiotic residues and antimicrobial resistance, thus safer alternatives are required. This study aimed to evaluate the effect of probiotic supplementation containing Bacillus coagulans DSM 32016 and Bacillus licheniformis DSM 33806 on the growth performance of Cobb500 broiler chickens. The study used a Completely Randomized Design (CRD). A total of 200 broiler chickens were divided into two groups: a control group (C) receiving a basal diet and a treatment group (TC) receiving a basal diet supplemented with probiotics. The feeding trial lasted for 35 days. The probiotic was administered at a concentration of 1 × 10¹? CFU/g with a dosage of 0.2 g/kg of feed. Observed parameters included Body Weight (BW), Average Daily Gain (ADG), Average Daily Feed Intake (ADFI), and Feed Conversion Ratio (FCR), which were measured weekly. Data normality was assessed using a Q–Q plot. Differences between the two independent groups were analyzed using a two-tailed independent two-sample t-test at a 95% confidence level (? = 0.05) using SAS version 9. Results showed that BW and ADG in the TC group were significantly higher than those C group from the second to the fifth week (p < 0>p < 0>p < 0>

Kata Kunci : antibiotic growth promoter, Bacillus coagulans, Bacillus licheniformis, feed conversion ratio, performa pertumbuhan / antibiotic growth promoter, Bacillus coagulans, Bacillus licheniformis, feed conversion ratio, growth performance