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Abstract

Two experiments were conducted to determine the effects of Lactobacillus plantarum B1 on broiler performance, cecal bacteria, and ileal and cecal short chain fatty acids (SCFA). The study also determined whether it was necessary to feed Lactobacillus throughout the entire growth period or if the beneficial effects could be obtained by supplementation during the starter or finisher period only. Experiment 1 was conducted with 72 broilers assigned to 2 treatments (N=6). One treatment was the basal diet (Con), and the other was the basal diet supplemented with 2×10(9) cfu/kg L. plantarum B1 (Wh). In experiment 2, 144 one-day-old broilers were assigned to 4 treatments (N=6) including a basal diet (Con), the basal diet supplemented with 2×10(9) cfu/kgL. plantarum B1 during d one to 21 only (St), the basal diet supplemented with L. plantarum B1 during d 22 to 42 only (Fn), and, finally, the basal diet supplemented with L. plantarum B1 from d one to 42 (Wh). Experiment 1 showed that L. plantarum B1 enhanced broiler average daily gain (ADG) and feed conversion ratio (FCR). In experiment 2, during the starter period, broilers in the Wh and St treatments had higher ADG (P<0.05) than broilers in the Con and Fn, while during the finisher period, broilers in the Wh and Fn had higher ADG (P<0.01) and improved FCR (P<0.01) compared with broilers in the Con and St. On d 42, broilers in the Wh and Fn had decreased E. coli (P<0.05) and increased lactic acid bacteria (P<0.05) in their cecal digesta. L. plantarum B1 also increased (P<0.05) ileal mucosal sIgA as well as ileal and cecal SCFA. However, L. plantarum B1 had no effect on intestinal morphology. In conclusion,L. plantarum B1 plays a positive role in broilers. Supplementation during the finisher period or the entire growth period is superior to supplementation during the starter period only.

Keywords: Lactobacillus plantarum; SCFA; broiler; performance; sIgA.

Research Insights

SupplementHealth OutcomeEffect TypeEffect Size
Lactobacillus Bulgaricus & Lactobacillus PlantarumImproved Growth PerformanceBeneficial
Large
Lactobacillus Bulgaricus & Lactobacillus PlantarumIncreased Lactic Acid Bacteria LevelsBeneficial
Moderate
Lactobacillus Bulgaricus & Lactobacillus PlantarumIncreased Secretory IgA LevelBeneficial
Small
Lactobacillus Bulgaricus & Lactobacillus PlantarumReduced Cecal Digesta E. coli LevelsBeneficial
Moderate
Lactobacillus plantarumImproved Feed Conversion RatioBeneficial
Large
Lactobacillus plantarumIncreased Average Daily Gain in BroilersBeneficial
Moderate
Lactobacillus plantarumIncreased Lactic Acid Bacteria LevelsBeneficial
Moderate
Lactobacillus plantarumIncreased Secretory IgA LevelBeneficial
Small
Lactobacillus plantarumReduced Cecal Digesta E. coli LevelsBeneficial
Moderate
Lactobacillus plantarum 14DImproved Feed Conversion RatioBeneficial
Large
Lactobacillus plantarum 14DImproved Growth PerformanceBeneficial
Large
Lactobacillus plantarum 14DIncreased Lactic Acid Bacteria LevelsBeneficial
Moderate
Lactobacillus plantarum 14DIncreased Secretory IgA LevelBeneficial
Small
Lactobacillus plantarum 14DReduced Cecal Digesta E. coli LevelsBeneficial
Moderate
Lactobacillus plantarum DR7Improved Average Daily GainBeneficial
Large
Lactobacillus plantarum DR7Improved Feed Conversion RatioBeneficial
Large
Lactobacillus plantarum DR7Increased Lactic Acid Bacteria LevelsBeneficial
Moderate
Lactobacillus plantarum DR7Increased Secretory IgA LevelBeneficial
Small
Lactobacillus plantarum DR7Reduced Cecal Digesta E. coli LevelsBeneficial
Moderate
Lactobacillus plantarum HEAL9Improved Feed Conversion RatioBeneficial
Large
Lactobacillus plantarum HEAL9Reduced Cecal Digesta E. coli LevelsBeneficial
Moderate
Lactobacillus plantarum KABP™-061Improved Feed EfficiencyBeneficial
Large
Lactobacillus plantarum KABP™-061Improved Growth PerformanceBeneficial
Large
Lactobacillus plantarum KABP™-061Increased SCFA LevelsBeneficial
Small
Lactobacillus plantarum KABP™-061Increased Secretory Immunoglobulin ABeneficial
Small
Lactobacillus plantarum KABP™-061Reduced Harmful BacteriaBeneficial
Moderate
Lactobacillus plantarum L-137Increased Lactic Acid Bacteria LevelsBeneficial
Moderate
Lactobacillus plantarum L-137Increased Secretory IgA LevelBeneficial
Small
Lactobacillus plantarum L-137Increased Short Chain Fatty Acid ProfilesBeneficial
Moderate
Lactobacillus plantarum L-137Reduced Fecal Escherichia coli LevelsBeneficial
Moderate
Lactobacillus plantarum R1012Improved Average Daily GainBeneficial
Large
Lactobacillus plantarum R1012Improved Feed Conversion RatioBeneficial
Large
Lactobacillus plantarum R1012Increased Average Daily GainBeneficial
Moderate
Lactobacillus plantarum R1012Increased Average Daily Gain During Finisher PeriodBeneficial
Large
Lactobacillus plantarum R1012Increased Lactic Acid Bacteria LevelsBeneficial
Moderate
Lactobacillus plantarum R1012Increased Secretory IgA LevelBeneficial
Small
Lactobacillus plantarum R1012Reduced Cecal Digesta E. coli LevelsBeneficial
Moderate
Lactobacillus plantarum R1012Unchanged Intestinal MorphologyNeutral
Small
Lactobacillus plantarum Rosell-AImproved Growth PerformanceBeneficial
Large
Lactobacillus plantarum Rosell-AImproved Intestinal Microbial CompositionBeneficial
Moderate
Lactobacillus plantarum Rosell-AIncreased Secretory IgA LevelBeneficial
Small
Lactobacillus plantarum Rosell-AIncreased Short Chain Fatty AcidsBeneficial
Moderate
Lactobacillus plantarum SD5209Improved Feed EfficiencyBeneficial
Large
Lactobacillus plantarum SD5209Improved Growth PerformanceBeneficial
Large
Lactobacillus plantarum SD5209Increased Lactic Acid Bacteria LevelsBeneficial
Moderate
Lactobacillus plantarum SD5209Increased Secretory IgA LevelBeneficial
Small
Lactobacillus plantarum SD5209Increased Short-Chain Fatty Acid LevelsBeneficial
Moderate
Lactobacillus plantarum SD5209Reduced E. coli LevelsBeneficial
Moderate
Lactobacillus plantarum UALp-05Improved Average Daily Gain in BroilersBeneficial
Large
Lactobacillus plantarum UALp-05Improved Feed Conversion RatioBeneficial
Large
Lactobacillus plantarum UALp-05Increased Lactic Acid Bacteria LevelsBeneficial
Moderate
Lactobacillus plantarum UALp-05Increased Secretory IgA LevelBeneficial
Small
Lactobacillus plantarum UALp-05Reduced Cecal Digesta E. coli LevelsBeneficial
Moderate
Lactobacillus plantarum UALp-05MImproved Growth PerformanceBeneficial
Large
Lactobacillus plantarum UALp-05MImproved Intestinal MicrobiotaBeneficial
Moderate
Lactobacillus plantarum UALp-05MIncreased Secretory IgA LevelBeneficial
Small
Lactobacillus plantarum UALp-05MIncreased Short Chain Fatty AcidsBeneficial
Moderate
Lactobacillus plantarum VPro 10Enhanced SCFA ProductionBeneficial
Moderate
Lactobacillus plantarum VPro 10Improved Growth PerformanceBeneficial
Large
Lactobacillus plantarum VPro 10Improved Microbiota BalanceBeneficial
Moderate
Lactobacillus plantarum VPro 10Increased Secretory Immunoglobulin ABeneficial
Small

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