Supplementation with organic acids showing different effects on growth performance, gut morphology, and microbiota of weaned pigs fed with highly or less digestible diets

Journal of Animal Science
Shuang LiDe Wu

Abstract

Two studies were conducted to evaluate the effects of organic acid (OA) supplementation in a highly digestible (Exp. 1) or a less digestible diet (Exp. 2) on the growth performance and intestinal health of weaned pigs. In Exp. 1, a total of 240 pigs weaned at day 21 were assigned to one of five dietary treatments: negative control (NC) (basal diet, 3,000 ppm zinc oxide (ZnO) in the first 2 wk only); positive control (PC) (NC plus 10 mg/kg zinc bacitracin, 5 mg/kg colistin sulfate, and 5 mg/kg olaquindox); OA1 (NC plus a 0.2% blend of encapsulated butyrate, medium-chain fatty acids [MCFA], OA, and phenolics); OA2 (NC plus 0.3% blend of free and buffered short-chain fatty acids [SCFA] combined with MCFA); and OA1 plus OA2 (NC plus 0.2% OA1 plus 0.3% OA2) for 49 d. All treatments in Exp. 1 used the same highly digestible basal diet. At day 28, eight pigs from each group were sacrificed, to collect intestinal and digesta samples for biochemical analysis. Growth performance and intestinal morphology were not affected by the treatments. However, pigs subjected to the OA2 treatment had lower levels of Escherichia coli (P < 0.05) in the colon. In addition, the OA1 and OA2 treatments, and their combination resulted in higher concentrati...Continue Reading

Citations

Jan 18, 2020·Animals : an Open Access Journal From MDPI·Benedetta TugnoliEster Grilli
Apr 17, 2020·Animals : an Open Access Journal From MDPI·Asavela NgalavuThobela Louis Tyasi
Nov 1, 2020·Animals : an Open Access Journal From MDPI·Leticia Mendonça RodriguesVinícius de Souza Cantarelli
Mar 2, 2021·Frontiers in Veterinary Science·Lan ZhengSung Woo Kim

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Methods Mentioned

BETA
PCR
electrophoresis

Software Mentioned

SAS
Taq
Uparsev7
Qiime

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