Observation on behaviours of Antarctic krill (Euphausia superba) in lighting condition

Xu, Pengwei; Li, Yingchun; Guo-ping, Zhu; Xia, Hui; Xu, Liuxiong

doi:10.3724/sp.j.1231.2012.27522

Cited by 1 publication

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“…Nevertheless, the development of inflammatory reactions after insertion of the nucleus and contamination by pathogenic bacteria was likely to cause oyster death [2][3][4][5][6]. In order to reduce postoperative infection [7,8], the method like coating the medicinal or synthetic antibiotics on nucleus and spraying antibiotics in the waters had been applied in pearl breeding industry.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Property of Antibacterial Nucleus with the Combination of Nano-Silver and Antibiotics

Sun

Zhou

et al. 2022

KEM

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To improve the yield and quality of pearls in freshwater pearl culture and the survival rates after nucleus implanting surgery, pearl farmers used artificial pearl nuclear transplantation techniques to raise pearls. To address the common problem of Staphylococcus aureus and Escherichia coli infection in oyster farming, a new prophylactic method by using compound antibiotics to prepare the medicine coated pearl nucleus was put forward based on existing research results of the nanosilver antibacterial nucleus. Single-factor experiment, multi-factor experiment, orthogonal experiment, SPSS analysis of variance was used to optimize the antibacterial formulation on the assumption that the contaminated probability of these two pathogenic bacteria was the same. The result showed that the optimal ratio of compound antibiotics was 0.0075g/ml of the flavomycin solution and 0.01g/mL of the terramycin solution; the inhibition zones diameter of both pathogenic bacteria was more than 2.6cm in vitro, which was higher than the nanosilver antibacterial nucleus of 0.9cm in vitro. Indicating that the addition of this compound antibiotic formula for the nanosilver antibacterial nucleus could reduce the usage of antibiotics under the premise of maintaining antibacterial effectiveness, and could preferably inhibit the pathogenic microorganisms in the postoperative infection period. This also indicates that compound antibiotics coated antibacterial nanosilver nucleus would be applied more widely.

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Section: Introductionmentioning

confidence: 99%