Serine protease-loaded inulin microsphere with Bacillus subtilis qb1-based synbiotic for improved growth indices in...

Area of Science:

• Animal Science
• Poultry Nutrition
• Microbiology

Background:

• Antibiotic use in poultry raises concerns regarding antibiotic resistance.
• Alternative strategies are needed to improve broiler performance and health.
• Serine protease (SP) and Bacillus subtilis (QB1) are potential growth promoters.

Purpose of the Study:

• To evaluate the efficacy of combining SP loaded inulin microspheres with QB1 in broiler chickens.
• To assess the impact on growth indices, health indicators, and meat quality.

Main Methods:

• 105 Ross 308 broiler chicks were divided into seven groups (control, Bacitracin, QB1, inulin, SP, synbiotics, and SP loaded inulin microspheres + QB1).
• Growth performance (body weight gain, feed intake, feed conversion ratio), energy efficiency, and protein efficiency were measured.
• Meat quality parameters including pH, water holding capacity, protein content, and extract release volume were analyzed.

Main Results:

• The combination of SP loaded inulin microspheres and QB1 (S7) significantly enhanced body weight gain, feed intake, feed conversion ratio, energy efficiency ratio, and protein efficiency ratio.
• S7 treatment notably improved breast and thigh meat pH, water holding capacity, protein content, and extract release volume.
• The experimental group S7 demonstrated superior performance compared to all other treatment and control groups (P<0.05).

Conclusions:

• SP loaded inulin microspheres combined with QB1 represent a potent synbiotic strategy for broiler production.
• This combination serves as a viable antibiotic alternative, promoting enhanced growth, meat quality, and overall broiler health.
• Further research into the synergistic mechanisms of SP and QB1 in poultry is warranted.