Adaptive additives enhance amino acid digestibility

Applying feed additives in feed may not always work consistently, as the substrates inside any pig’s gastro-intestinal tract are different. A novel feed additive having an adaptive enzyme producing capacity, however, has been observed to overcome that.

While intensive, indoor pig production is the most effective and economic way to raise pigs, it is not without its limitations. Maximising feed efficiency, achieving a consistent growth rate and controlling and preventing diseases are common challenges that can be difficult to overcome within the standard grower-finisher pig production model.

Historically, producers have used antibiotics as a cost effective tool to reduce the impact of disease and environmental pathogens on growth. However, government-mandated withdrawal of in-feed antibiotics in some countries and mounting consumer pressures in others have left producers searching for alternatives.

Disappointing results from past trials have made many producers sceptical of feed additives outside of phytase. However, researchers found that providing more digestible amino acids to the small intestine, the site of greatest absorption, can provide pigs with the tools to simultaneously support immune function and optimise growth. Emerging research has identified an enzyme/probiotic combination, Syncra SWI, that consistently improves amino acid digestibility, thereby improving growth and reducing feed costs.

By combining enzymes with probiotics, improved and consistent growth performance can be achieved with pigs. Photo: Dr Maria Walsh

Impact of enzymes and probiotics

The solution combines a protease enzyme and a multi-strain Bacillus species probiotic (a direct-fed-microbial; DFM). It consistently delivers digestibility largely due to the probiotic’s agile enzyme producing capacity that adapts to different feed ingredients.

As a live and responsive organism, the multi-strain probiotic can adapt its enzyme production profile to be specific to the available substrate in the small intestine. This enables the same additive to consistently degrade substrate in many different feed ingredients.

Furthermore, the probiotic uses spore-forming Bacillus strains that are highly stable to heat and processing, yet will germinate and thrive in the small intestine of the animal. This acts as an enzyme delivery system that allows unstable enzymes which would not normally survive pelleting or the stomach, to be delivered safely to the small intestine where they are needed to break down substrate.

The exogenous protease enzyme in the strategy targets a wide range of amino acid sequences that are complimentary to pig’s specific endogenous protease activity. These proteases work synergistically with the proteases and fibre-degrading enzymes from the multi-strain probiotic to provide exceptional protein breakdown, which is needed to target fibre-bound protein, liberating amino acids and…

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