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July 01, 2020

How to eliminate anti-nutritional factors in piglet feed

by Zheng Chang, China

Almost all feed materials contain anti-nutritional factors, especially plant-based materials. Feed with high levels of anti-nutritional factors may have adverse effects on the production performance and health of livestock and poultry. Although soybean-based products are the most abundant source of protein within feed at present, they contain a variety of anti-nutritional factors, which leads to allergic diarrhea and even, in rare cases, mortalities.
 

Anti-nutritional factors in soybean meal
Anti-nutritional factors are substances that have adverse effects on the digestion, absorption and utilisation of nutrients in feed. At present, the common anti-nutritional factors in actual production include protease inhibitors, phytic acid, tannic acid, mycotoxins, etc. They destroy or hinder the digestion and utilisation of nutrients and affect the growth of piglets.

Soybean meal is mainly used as a protein source to provide nourishment for pigs. Although it is nutritious, it contains many anti-nutritional factors, such as non-protein anti-nutritional factors (such as phytic acid, oligosaccharide) and protein anti-nutritional factors (such as trypsin inhibitors, soybean antigen proteins, urease). Different factors have different anti-nutritional effects.

Possible solution: Optimise your formula to ensure the amount of soybean meal for piglet feed does not exceed 15 percent.

The effects of high levels of anti-nutritional factors
Feed with bad palatability may decrease the appetite of piglets. Feed intake will decrease, growth will stagnate, and cases of diarrhea will worsen. Improving the palatability of feed is the most direct and effective way to improve the feed intake, but there are many factors that affect palatability: feed flavor, anti-nutritional factors, feed deterioration, feed ingredients, unreasonable feed processing, etc.

Tannic acid, protease inhibitors and plant agglutinin are typical anti-nutritional substances. These can affect the taste of feed and decrease the appetite of suckling pigs. Also, they may combine with digestive enzymes and nutrients in the body of suckling pigs, secrete irritant substances, and affect the digestion of protein.

Possible solution: Realising the balance between creep feed and high-grade piglet feed through formula optimisation and reasonable processing. Eliminating excessive anti-nutritional factors according to the local conditions and the situation.


Read more HERE.
 

The Global Miller
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