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Accession IconGSE94622

Lysolecithin as feed additive enhances collagen expression and villus length in the jejunum of broiler chickens

Organism Icon Gallus gallus
Sample Icon 50 Downloadable Samples
Technology Badge Icon Affymetrix Chicken Genome Array (chicken)

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Description
Adding lysolecithin to feed has reportedly improved the performance of broiler chickens. Lysolecithin is generated by phospholipase catalyzed hydrolysis of lecithin. The enzymatic reaction converts phospholipids into lysophospholipids, with lysophosphatidylcholine (LPC) the primary product. Here we compared supplementation with a commercial lysolecithin (Lysoforte(R) Kemin Industries, Inc., Des Moines, IA) with comparable levels of purified LPC for effects on broilers. Despite no differences in weight gain during the starter period, we discovered a significant increase in average villus length in the jejunum with lysolecithin, but not with LPC. High-throughput gene expression microarray analyses revealed many more genes were regulated in the epithelium of jejunum by lysolecithin compared to LPC. The most upregulated genes and pathways were for collagen, extracellular matrix and integrins. Staining sections of jejunum with Sirius Red confirmed the increased deposition of collagen fibrils in villi of broilers fed lysolecithin but not LPC. Thus, lysolecithin elicits gene expression in the intestinal epithelium leading to enhanced collagen deposition and villus length. LPC alone as a supplement does not mimic these responses. Feed supplementation with lysolecithin triggers changes in the intestinal epithelium with the potential to improve overall gut health and performance.
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