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Abstract

The effect of Bacillus coagulans ZJU0616 with different concentrations supplemented as probiotic was evaluated on growth performance, feed conversion ratio, survival rate, breast chemical composition, and meat quality of Guangxi Yellow chicken. Birds were randomly segregated into 12 groups so that 3 replicates were available for each of the 3 treatments (T-1, T-2, and T-3) and control groups. The control groups were fed a basal diet without any probiotic and other groups were fed the diets that consisted of 3 probiotic levels at initial concentrations of 1.0 x 10(6) cfu.g(-1) (T-1), 2.0 x 10(6) cfu.g(-1) (T-2), and 5.0 x 10(6) cfu.g(-1) (T-3). The lowest final weight and daily weight gain were found in control groups (P < 0.05) and there were no significant differences among probiotic-treated groups. Significantly lower feed conversion ratio and higher survival rate were observed in T-2 and T-3 than that of the control. There were no significant differences (P > 0.05) in contents of breast chemical composition including moisture, CP, crude fat, and crude ash among all groups. For the meat quality parameter assays, the pH, shear force, and drip loss were used as indicators. As for pH values of breasts, no significant difference was found across all treatments. Higher shear force was observed (P < 0.05) in T-2 compared with T-1 and the control. Similar significant difference was also observed in T-1 compared with the control. However, there was no significant difference in shear force between T-3 and the other probiotic treatment groups (T-1 and T-2). As for probiotic-treated groups, there was significant difference (P < 0.05) in breast drip loss compared with that of the control (6.22 +/- 0.18%), with the lowest drip loss found in T-3 (5.38 +/- 0.25%). However, no significant difference was observed in drip loss between T-2 and T-3.

Research Insights

SupplementHealth OutcomeEffect TypeEffect Size
Bacillus coagulans LactoSpore 1 billion CFUImproved Cell Survival RatesBeneficial
Large
Bacillus coagulans LactoSpore 1 billion CFUImproved Feed Conversion RatioBeneficial
Moderate
Bacillus coagulans LactoSpore 1 billion CFUImproved Growth PerformanceBeneficial
Large
Bacillus coagulans LactoSpore 1 billion CFUIncreased Shear ForceBeneficial
Moderate
Bacillus coagulans LactoSpore 1 billion CFUNo Significant Change in Breast CompositionNeutral
Small
Bacillus coagulans LactoSpore 1 billion CFUReduced Drip Loss in MeatBeneficial
Large
Bacillus coagulans ProDuraImproved Cell Survival RatesBeneficial
Large
Bacillus coagulans ProDuraImproved Feed Conversion RatioBeneficial
Moderate
Bacillus coagulans ProDuraImproved Shear Force of MeatBeneficial
Moderate
Bacillus coagulans ProDuraReduced Drip Loss in MeatBeneficial
Large
Bacillus coagulans SC208Improved Cell Survival RatesBeneficial
Large
Bacillus coagulans SC208Improved Feed Conversion RatioBeneficial
Moderate
Bacillus coagulans SC208Improved Meat QualityBeneficial
Small
Bacillus coagulans SC208Increased Body WeightBeneficial
Moderate
Bacillus coagulans SC208Reduced Drip Loss in MeatBeneficial
Large
Bacillus coagulans SNZ-1969Improved Growth PerformanceBeneficial
Large
Bacillus coagulans SNZ-1969Increased Shear ForceBeneficial
Moderate
Bacillus coagulans SNZ-1969Maintained pH LevelsNeutral
Small
Bacillus coagulans SNZ-1969No Significant Change in Breast CompositionNeutral
Small
Bacillus coagulans SNZ-1969Reduced Drip Loss in MeatBeneficial
Large
Bacillus coagulans SNZ-1969Reduced Feed/Gain RatioBeneficial
Large
Bacillus coagulans Unique IS-2Altered Breast Chemical CompositionNeutral
Small
Bacillus coagulans Unique IS-2Improved Feed Conversion RatioBeneficial
Moderate
Bacillus coagulans Unique IS-2Increased Body WeightBeneficial
Moderate
Bacillus coagulans Unique IS-2Increased Survival RateBeneficial
Moderate
Bacillus coagulans Unique IS-2Reduced Drip LossBeneficial
Moderate
Bacillus coagulans Unique IS-2Reduced Shear ForceNeutral
Small

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