NUTRITION ▶▶▶
Science behind macroalgae activities
M BY MARÍA GARCÍA SUÁREZ, OLMIX
odern broiler production has dramatically changed in the last years driven by an increas- ing consumer demand. The immune require- ments vary throughout the production cycle
depending on the physiological status and are also influ- enced by external factors. Among external factors, environ- mental stress such as temperature or stocking density, man- agement stress such as vaccination programmes, feed stress such as transitions or presence of toxins can really impact the animals’ immune status and thus performance. Plus, sanitary pressure will greatly impact immunity and thus performance. This situation is aggravated if animals already present a low level of immunity. The implementation of new regulations banning the inclusion of antibiotics in broilers diets as a routine means of growth
Trials in research centres and field studies have confirmed that when distributed continuously to broilers during starter and grower phases, macroalgae can accelerate the shift from innate to adaptive immunity, improve gut protection and improve technical performance.
promotion has led to an intensive research effort to identify alternative bioactive compounds that are able to promote an- imal health and performance. The modulation of the animal’s immune function is another approach leading to a higher re- silience level against external aggressors such as infectious agents. The goal is to make animals able to better face daily challenges. Recent research has highlighted the potential of in-feed marine macroalgal polysaccharides as a reliable
Recent research has highlighted the potential of in-feed marine macroalgal poly- saccharides as a reliable solution to strengthen animal defenses.
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PHOTO: OLMIX
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