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. 2024 Mar 14;12(3):304. doi: 10.3390/vaccines12030304

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© 2024 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Immunogenicity of recombinant LAB live vector oral vaccine in pregnant sows: (A) Experimental protocol for the late-gestation sow trials. (B) Serum IgG antibody levels of sows in each group before and after immunization. (C) Colostrum IgG antibody levels in each group of sows after immunization (*** p ≤ 0.001, the same as follows). (D) Serum IgG antibody levels in piglets born to sows from each experimental gro. (E) Weight measurements of piglets born to sows from each experimental group (* p ≤ 0.05).