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Review
. 2022 Nov;106(6):1277-1287.
doi: 10.1111/jpn.13654. Epub 2021 Oct 31.

Research progress on diarrhoea and its mechanism in weaned piglets fed a high-protein diet

Jiangying Xia  1 , Haoyue Fan  1 , Ju Yang  1 , Tianhao Song  1 , Lianfeng Pang  1 , Huidan Deng  1 , Zhihua Ren  1 , Junliang Deng  1
Affiliations
Review

Research progress on diarrhoea and its mechanism in weaned piglets fed a high-protein diet

Jiangying Xia et al. J Anim Physiol Anim Nutr (Berl). 2022 Nov.

Abstract

In order to pursue faster growth and development of weaned piglets, increased dietary protein (CP) levels were favoured by the pig industry and the feed industry. The digestive organs of piglets were not fully developed at weaning, and the digestive absorption capacity of protein was limited. High-protein diets can cause allergic reactions in piglets, destroy intestinal structural integrity, reduce immunity, and cause intestinal flora imbalance. Undigested proteins were prone to produce toxic substances, such as ammonia and biogenic amines, after fermentation in the hindgut, which negatively affects the health of the intestine and eventually causes reduced growth performance and diarrhoea in piglets. This review revealed the mechanism of diarrhoea caused by high-protein diets in weaned piglets and provided ideas for preventing diarrhoea in weaned piglets.

Keywords: diarrhoea; high protein; intestinal barrier; weaned piglets.

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