Characterization of NDM-5-producing isolates from retail grass carp ( ) and evidence of -bearing IncHI2 plasmid transfer between ducks and fish.

We aimed to characterize NDM-5-producing from aquatic products in Guangzhou, China. A total of 196 intestinal samples of grass carp collected in 2019 were screened for carbapenemase genes. Characterization of positive isolates and plasmids was determined by antimicrobial susceptibility testing, conjugation experiments, Illumina HiSeq, and Nanopore sequencing.

Zinc Supplementation Forms Influenced Zinc Absorption and Accumulation in Piglets.

The study aimed at determining the effect of different zinc (Zn) supplementation forms on Zn accumulation, activities of Zn-containing enzymes, gene expression of metallothionein (MT), and Zn transporters in piglets. Eighteen piglets were randomly divided into three groups: (a) a basal diet supplemented with 150 mg/kg Zn from Zn methionine (Zn-Met) in the feed (Zn-Met group), (b) a basal diet supplemented with 150 mg/kg Zn from Zn sulfate (ZnSO) in the feed (ZnSO, group), and (c) a basal diet supplemented with the same dose of Zn as in ZnSO4, group but in water (ZnSO, group). The results showed that Zn-Met added in feed and ZnSO dissolved in drinking water significantly improved ( < 0.