Poultry probiotics

PoultriMax® Research

Feeding PoultriMax® supports the health and productivity of poultry in all stages of development and types of production – from hatchery to harvest. The probiotic actions of PoultriMax® result in stable digestive function and better immune responsiveness. This helps to reduce enteric challenges in poultry that can impact growth and productivity, so producers see better growth rates, improved feed efficiency, reduced mortality, and achieve a positive economic return.

Decades of Experience

From our decades of experience, we know that it’s never as simple as just adding probiotics to feed. It takes scientific research to arrive at a formula that:

PoultriMax® works by introducing an effective concentration of live bacteria into the digestive tract where the beneficial bacteria utilize lactic acid, reduce harmful bacteria, improve the integrity of the intestinal lining and support the response of the immune system.

Learn more about the mode of action of PoultriMax® probiotic products here.

Research shows that daily feeding of PoultriMax® helps to:

Research Abstract

University and commercial research has shown that PoultriMax® products can support producers’ goals to reduce mortality and reduce enteric challenges to enable stable digestive function. Learn more about our research by requesting free copies of our reports.


Multiple studies on the effectiveness of PoultriMax® to deliver beneficial living bacteria to flocks as part of in-hatchery/in-feed program

Food safety and antibiotics are an ongoing concern of producers, retailers and consumers. In dealing with the risk of foodborne pathogens and rising product demand, U.S. poultry producers must find effective alternatives for controlling disease and improving performance in order to deliver healthy, robust, uniform flocks. Probiotics are a proven solution. Their natural action in the gut enables stable digestive function, better immune responsiveness, and improved nutrient absorption for faster growth and higher yields.

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Broiler Feed Additive Evaluation: Commercial Trial 1

This commercial trail was designed to evaluate the performance of broilers fed rations with the addition of PoultriMax®, a live Lactobacillus (strain NP51), Test Product A, and birds fed standard diets. Results concluded that birds consuming a diet containing PoultriMax® significantly improved live weight gain and feed conversion ratio compared to birds consuming control feeds.

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Broiler Feed Additive Evaluation: Commercial Trial 2

This commercial trail evaluated the performance of broilers fed rations containing PoultriMax®, a live Lactobacillus (strain NP51), sprayed on the feed post pelleting in all rations compared to birds fed standard diets. Results found the addition of PoultriMax® to standard broiler diets significantly improved FCR and numerically improved weight gain.

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Broiler Feed Additive Evaluation: Commercial Trial 3

This commercial trail evaluated the performance of broilers fed rations containing PoultriMax®, a live Lactobacillus (strain NP51), sprayed on the feed post pelleting in all rations compared to birds fed standard diets. Results found the addition of PoultriMax® to standard broiler diets significantly improved feed conversion ratio.

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An Evaluation of PoultriMax® at a US Turkey Integrator from Hatch to 35 days of age

This commercial trial evaluated the performance of commercial turkey poults fed PoultriMax®, a live Lactobacillus (strain NP51) from day‐of‐hatch through 35 days of age. Flocks that received PoultriMax® were compared to historic and contemporary flocks that had not received the probiotic. Results concluded that the application of PoultriMax on day‐of‐hatch, followed by daily feeding through 35 days of age, significantly improved early weight gains in commercial heavy tom and hen poults.

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An Evaluation of PoultriMax® at a US Turkey Integrator from Hatch to Harvest

This commercial trial was designed to evaluate the performance of commercial turkeys fed PoultiMax®, a live Lactobacillus (strain NP51), from day‐of‐hatch through harvest compared to contemporary commercial flocks that had not received the probiotic and historic flocks from the same grow‐out locations (farms). An analysis of the results that eliminated outliers and looked for a shift in distribution concluded that the application of PoultriMax® on day‐of‐hatch followed by daily feeding resulted in an increase in the percentage of commercial tom flocks that segregated into the above average groups for feed conversion and livability, respectively.

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Effect of Lactobacillus Probiotic on Turkey Tom Performance and Processed Meat Yield

The objectives of this study were to determine the effect of Lactobacilli feed formula products and concentration on commercial turkey tom performance when reared on built‐up litter, and determine if Lactobacilli reduce the incidence of Salmonella contamination and E. coli contents in whole‐bird rinse samples taken after complete processing. The incidence of E. coli and Salmonella spp. appeared to be reduced with increasing concentrations of Lactobacilli, and results suggest that daily feeding of Lactobacilli positively affects live performance and other significant meat yield criteria, especially when birds are raised on built‐up litter.

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Effect of a Lactobacillus Probiotic Alone or in Combination with a Vaccine on Turkey Live Performance and Gross Necropsy

This research study was designed to determine the effect of a Lactobacillus probiotic in combination with a commercial coccidiosis vaccine on turkey performance compared to either treatment alone, or to untreated, unvaccinated controls. Results concluded that Lactobacillus‐based probiotic, PoultriMax®, improved rate of gain, feed efficiency, and intestinal health in this mild coccidiosis challenge model.

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Effect of a Lactobacillus Probiotic Alone or in Combination with a Vaccine on Broiler Chicken Live Performance and Gross Necropsy

This research study was designed to determine the effect of a Lactobacillus probiotic in combination with a commercial coccidiosis vaccine on broiler performance compared to either treatment alone, or to untreated, unvaccinated controls. Results concluded the use of a Lactobacillus‐based probiotic, PoultriMax®, improved the efficacy of vaccination against coccidiosis, with regard to feed efficiency and intestinal health.

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Bioassay of Different Formulations of a Lactobacillus-based Probiotic in Broilers

The objectives of this study were to determine the potency and bio‐equivalence of a standard freeze‐dried formulation of PoultriMax® and a stabilized formulation of PoultriMax® in broiler chicks from hatch to 21 days of age placed under a Clostridium and Coccidia challenge. The study concluded that daily feeding of Lactobacillus animals LA51 for 21 days in broiler chicks resulted in an increase in performance, a reduction in the prevalence and severity of intestinal lesions, and a reduction in concentration of pathogenic organisms throughout the digestive tract.

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Effect of a Lactobacillus Probiotic on Broiler Chicken Gut Health/Live Performance, Coccidiosis Observations and Gross Necropsy in a Coccidiosis Challenge Model System

The goal of this study was to determine the effect of a Lactobacillus probiotic on broiler performance, mortality, and morbidity in a coccidiosis challenge model system. Considering all data analyzed, results concluded a daily‐fed Lactobacillus probiotic appears to have ameliorated the mortality and morbidity associated with a coccidial challenge in young broiler chicks.

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Effect of a Lactobacillus Probiotic on Broiler Chicken Gut Health/Live Performance, Necrotic Enteritis Observations and Gross Necropsy in a Necrotic Enteritis Challenge Model System

This study looked to determine the effect of a Lactobacillus probiotic on broiler performance, mortality, and morbidity in a necrotic enteritis challenge model system. Considering all data analyzed, results concluded a daily‐fed Lactobacillus probiotic appears to have ameliorated the mortality and morbidity associated with a severe necrotic enteritis challenge in young broiler chicks. Mortality was reduced and those birds that survived had fewer and less severe intestinal lesions, grew better and converted feed more efficiently.

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Comprehensive Research Overview

Type of Study Number Trials Including But Not Limited To
Product Development 50+ ·       Isolation & Selection

·       Stability (heat, shipping, shelf life)

·       Viability

Production Performance 50+ ·       Various Diet Formulations

·       Animal Production Systems

Mode Of Action 15+ ·       Gastrointestinal Health

·       Immune Challenge

·       Digestibility

·       Competitive Exclusion

Pre-Harvest Food Safety 20+ ·       E. coli O157:H7

·       Non-O157 STECs

·       Salmonella

Post-Harvest Food Safety 25+ ·       Carcass Wash

·       Whole Muscle Cuts

·       Ground & Processed Meats

Application 25+ ·       Commercial Feeding Operations

·       Commercial Processing Facilities