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Related Experiment Video

Updated: Aug 2, 2025

In Ovo Feeding of Commercial Broiler Eggs: An Accurate and Reproducible Method to Affect Muscle Development and Growth
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Feeding broilers with wheat germ, hops and grape seed extract mixture improves growth performance.

Qiangqiang Zou1, Weishuang Meng1, Chunxiao Li2

  • 1College of Animal Husbandry and Veterinary Medicine, Jinzhou Medical University, Jinzhou, China.

Frontiers in Physiology
|April 14, 2023
PubMed
Summary

A novel blend of Wheat germ, Hops, and Grape seed extract (BX) supplementation improved broiler growth and gut health. This natural alternative to antibiotics significantly reduced harmful gas emissions and pathogenic bacteria while increasing beneficial microbes.

Keywords:
blood indicatorsbroilersfaecal microbiotagrape seed extractgrowth performancehops extractnoxious gaswheat germ

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Area of Science:

  • Animal Science
  • Nutritional Science
  • Microbiology

Background:

  • Antibiotic use in broiler production raises concerns regarding resistance and environmental impact.
  • Exploring natural feed additives is crucial for sustainable animal agriculture.
  • Plant-based extracts offer potential as alternatives due to their bioactive compounds.

Purpose of the Study:

  • To evaluate the efficacy of a Wheat germ, Hops, and Grape seed extract mixture (BX) in broiler diets.
  • To assess the impact of BX supplementation on broiler growth performance, blood parameters, gut microbiota, and noxious gas emissions.
  • To determine the optimal dosage of BX for broiler production.

Main Methods:

  • A 42-day feeding trial involving 480 male broilers divided into four groups.
  • Dietary treatments included a basal diet and basal diet supplemented with 0.05%, 0.1%, and 0.2% BX.
  • Evaluated parameters included average daily gain (ADG), average daily feed intake (ADFI), blood indicators, fecal microbiota (E. coli, Salmonella, Lactobacillus), and noxious gas emissions (H2S, NH3).

Main Results:

  • BX supplementation linearly increased ADG and ADFI, with significant improvements observed at 0.2% BX.
  • BX significantly reduced fecal emissions of hydrogen sulfide (H2S) and ammonia (NH3).
  • BX supplementation decreased levels of E. coli and Salmonella while increasing Lactobacillus populations in the feces, particularly at the 0.2% inclusion level.

Conclusions:

  • Dietary supplementation with 0.2% BX effectively enhances broiler growth performance.
  • BX acts as a natural antimicrobial agent, reducing pathogenic bacteria and noxious gas emissions.
  • BX shows promise as a viable, antibiotic-free alternative for improving broiler health and production.