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Alternative Protein Sources in Poultry and Pig Nutrition-A Review.

Lukáš Čumplík1, Dana Zálešáková1, Jakub Novotný1

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Soybean meal is a costly and unsustainable protein source for animal feed. This review explores alternative protein feeds like insects and algae for poultry and pigs to improve sustainability.

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insectslupinenettlepeasseaweedsingle‐cell protein

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Area of Science:

  • Animal Nutrition and Feed Science
  • Sustainable Agriculture
  • Environmental Science

Background:

  • Proteins are vital for animal growth, regeneration, and defense.
  • Soybean meal is a common but expensive and environmentally impactful protein supplement in animal feed.
  • Increasing global protein demand necessitates sustainable alternatives to soybean cultivation.

Purpose of the Study:

  • To review and present information on alternative protein sources for animal nutrition.
  • To assess the potential of non-traditional feeds to replace or reduce reliance on soybean meal.
  • To aid in the selection of sustainable protein alternatives for poultry and pig diets.

Main Methods:

  • Literature review of existing studies on alternative protein sources.
  • Analysis of characteristics of selected alternative protein feeds.
  • Evaluation of the impact of these feeds on animal performance and health parameters.

Main Results:

  • Identified several alternative protein sources including insects, algae, lupine, peas, faba beans, single-cell protein, and nettle.
  • Described the specific characteristics of these alternative feeds.
  • Detailed their effects on the performance and health of poultry and pigs.

Conclusions:

  • Alternative protein feeds offer a viable solution to reduce environmental impact and cost associated with soybean meal.
  • Insects, algae, and legumes show promise as sustainable protein supplements.
  • Further research and implementation of these alternatives are crucial for sustainable animal nutrition.