TY - JOUR AU - Sornplang, Pairat AU - Soikum, Chaiyaporn PY - 2021/08/19 Y2 - 2024/03/29 TI - EFFECT OF LACTOBACILLUS SPP. SUPPLEMENTATION ON GROWTH PERFORMANCE AND DECREASING CONTAMINATION OF SPOILAGE BACTERIA IN CHICKEN MEAT JF - PSRU Journal of Science and Technology JA - PSRU J. Sci. Tech. VL - 6 IS - 2 SE - Research Articles DO - UR - https://ph01.tci-thaijo.org/index.php/Scipsru/article/view/243862 SP - 13-21 AB - <p>This study aims to investigate effects of <em>Lactobacillus</em> spp. on growth performance in broiler chicken and on bacterial spoilage contamination in their meat under refrigeration storage (4-6°C). Ninety chicks (1 day old) were randomly assigned into 3 groups with 30 chicks per group. Three diets were provided following: group 1 basal diet (recommended by NRC), group 2 basal diet supplemented with <em>Lactobacillus</em> <em>salivarius </em>L61 (1´10<sup>7 </sup>CFU/ g of feed) and group 3 basal diet supplemented with commercial probiotic<em> strain (Lactobacillus plantarum</em> Fr-B) (1´ 10<sup>7 </sup>CFU/ g of feed). <em>Lactobacillus</em> supplementation was started at 25 day old and finished at 35 day old of broilers. Each group of 10 chicks was randomly slaughtered and sampled intestinal contents for coliform plate count. Breast meat samples were collected under refrigeration storage (4-6 °C) for 1 and 3 days, and analyzed for coliform bacteria and <em>Pseudomonas</em> spp. counts. This result showed that <em>L</em>. <em>salivarius </em>L61 supplementation improved growth performance (<em>p&lt;</em> 0.05) compared to control group. Coliform and <em>Pseudomonas</em> spp. counts in refrigerated meat at 1 day from chickens raised basal diet with either <em>L</em>. <em>salivarius </em>L61 or <em>L. plantarum</em> Fr-B supplementation were significantly lower (<em>p&lt;</em> 0.05) compared to control group. Moreover, <em>L</em>. <em>salivarius </em>L61 supplementation showed the highest reduction of <em>Pseudomonas</em> spp. counts in meat under refrigeration storage for 1 or 3 days compared to control group (<em>p&lt;</em> 0.05). <em>L</em>. <em>salivarius </em>L61 supplementation can reduce contaminant coliform and <em>Pseudomonas</em> spp. counts in meat under refrigeration storage for 1 day at 84.16% and 98.42%, respectively. This study indicated that supplementation of <em>L</em>. <em>salivarius </em>L61 in broiler diets may improve shelf life of broiler chicken meat under refrigeration storage.</p> ER -