Seaweed extract has a positive effect on weaned piglets
When piglets are weaned, they are affected by a number of stress factors such as nutrition, environment and population. These stress factors have been shown to be associated with decreased growth rates, changes in intestinal morphology, and changes in intestinal flora, leading to increased susceptibility to piglet diarrhea and other diseases. In the past, these problems were mainly managed through the use of preventive antibiotics.
Recently, studies have confirmed that seaweed and seaweed extract (SWE) can be added to pig feed as an alternative to antibiotics (Gardiner et al., 2008; Reilly et al., 2008; Gahan et al., 2009). It has a positive effect on weaned piglets. Seaweed is rich in a variety of polysaccharides that are not easily digested and is a potential source of water-soluble dietary fiber. The most abundant polysaccharides in brown algae are kelp polysaccharides, fucoidan and alginic acid. In a 2010 study, Lynch showed that kelp polysaccharides have antibacterial properties, and Deville's 2007 study pointed out that kelp polysaccharides can affect the adhesion and translocation of bacteria through the epithelial cell wall, which is like a bowel metabolism. Regulators that act on mucus components, intestinal pH, and broken chain fatty acid products, especially butyric acid. Fucoidan is a sulfated polysaccharide extracted from the cell walls of different species of brown algae. Fucoidan has been proven to have anti-tumor, anti-viral and anti-bacterial properties.
Gardner pointed out in the 2008 report that in healthy fattening pigs, as the level of brown algae extract increased, the daily gains showed a downward trend. However, this extract also contains a phenolic complex and an alginate. Gardner concluded that unless these ingredients are removed during the brown algae extraction process, it will be greatly limited as a commercial feed additive. According to the results of this study, Doltier showed in a 2010 study that a compound containing kelp polysaccharide and brown algae extract (containing fucoidan) can increase the daily gain (+11%) of weaned piglets and Can increase the conversion rate of feed. McDonald's research on kelp polysaccharides in 2010 also yielded similar results in terms of piglet growth rate and feed conversion ratio.
This performance improvement can be for a variety of reasons. First, the number of E. coli in the gut will be reduced in pigs fed a diet containing kelp polysaccharide and brown algae extract (including fucoidan). The number of E. coli in the feces of pigs fed seaweed extract (SWE) compared to pigs without seaweed extract (SWE)...
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