With fresh-cut grass carp belly as the test material, the antibacterial con- ditions of a disinfection agent sodium hypochlorite were optimized. In addition, the shelf lives of various grass carp products were compare...With fresh-cut grass carp belly as the test material, the antibacterial con- ditions of a disinfection agent sodium hypochlorite were optimized. In addition, the shelf lives of various grass carp products were compared after disinfection, so as to provide certain basis for the processing of fresh-cut grass carp products. The re- sults showed that the optimal disinfection conditions of sodium hypochlorite were as follows： concentration 300 mg/L, soak time 5 min and solid-liquid ratio 1 g ： 5 ml. Under the optimal disinfection conditions, the inhibition rates of total bacteria and Pseudomonas reached 83% and 81%, respectively. The shelf life of refrigerated fresh-cut grass carp belly disinfected by sodium hypochlorite and packed in bag filled with gases could be extended as long as 11 d, which was increased by 5 d （83%） compared with that in the control group. The disinfection by sodium hypochlorite could significantly reduce the initial bacterial colony number and improve the sensory quality of fresh-cut grass carp belly, as well as extend the shelf life of refrigerated and modified gas-packed grass carp belly.展开更多
A seven-month-old infant was admitted to our hospital with a 1-wk history of shortness of breath, dysphagia, and fever. Diagnosis of esophageal perforation follow- ing fish vertebra ingestion was made by history revie...A seven-month-old infant was admitted to our hospital with a 1-wk history of shortness of breath, dysphagia, and fever. Diagnosis of esophageal perforation follow- ing fish vertebra ingestion was made by history review, pneumomediastinum and an irregular hyperdense lesion noted in initial chest radiogram. Neck computed tomo- graphy (CT) confirmed that the foreign body located at the cricopharyngeal level and a small esophageal tra- cheal fistula was shown by esophagogram. The initial re- sponse to treatment of fish bone removal guided by pan- endoscopy and antibiotics administration was poor since pneumothorax plus empyema developed. Fortunately, the patient’s condition finally improved after decortica- tion, mediastinotomy and perforated esophagus repair. To our knowledge, this is the first case report of esopha- geal perforation due to fish bone ingestion in infancy. In addition to particular caution that has to be taken when feeding the innocent, young victim, it may indicate the importance of surgical intervention for complicated esophageal perforation in infancy.展开更多
The active transmission of information from sender to receiver is a fundamental component of communication, and is therefore a primary facet in evolutionary models of sexual selection. Research in several systems has ...The active transmission of information from sender to receiver is a fundamental component of communication, and is therefore a primary facet in evolutionary models of sexual selection. Research in several systems has underlined the importance of multiple sensory modalities in courtship signals. However, we still tend to think of individuals as having a relatively static signal in consecutive communicative events. While this may be true for certain traits such as body size or coloration, behaviorally modulated signals can quickly violate this assumption. In this work, we explore how intraspecific variation may be an important component of interspecific signal divergence using cichlid fishes from Lake Malawi. Behavioral analyses were made using six species of Malawian cichlids from two divergent genera. While interspecific differences were found between congeners based on species-level analyses of both acoustic and audiovisual signals, intraspecific variation was of a similar magnitude. Specifically, individual fishes were found to possess highly plastic signal repertoires. This finding was ubiquitous across all species and resuited in a great deal of overlap between heterospecific individuals, despite statistically distinct species means. These results demonstrate that some aspects of courtship in Malawian cichlids are more plastic than previously proposed, and that studies must account for signal variability within individuals. We propose here that behavioral variability in signaling is important in determining the communication landscape on which signals are perceived. We review potential complexity deriving from multimodal signaling, discuss the sources for such lability, and suggest ways in which this issue may be approached experimentally .展开更多
基金Supported by Scientific Research Foundation of the Education Department of Hubei Province,China(Q20141701)~~
文摘With fresh-cut grass carp belly as the test material, the antibacterial con- ditions of a disinfection agent sodium hypochlorite were optimized. In addition, the shelf lives of various grass carp products were compared after disinfection, so as to provide certain basis for the processing of fresh-cut grass carp products. The re- sults showed that the optimal disinfection conditions of sodium hypochlorite were as follows： concentration 300 mg/L, soak time 5 min and solid-liquid ratio 1 g ： 5 ml. Under the optimal disinfection conditions, the inhibition rates of total bacteria and Pseudomonas reached 83% and 81%, respectively. The shelf life of refrigerated fresh-cut grass carp belly disinfected by sodium hypochlorite and packed in bag filled with gases could be extended as long as 11 d, which was increased by 5 d （83%） compared with that in the control group. The disinfection by sodium hypochlorite could significantly reduce the initial bacterial colony number and improve the sensory quality of fresh-cut grass carp belly, as well as extend the shelf life of refrigerated and modified gas-packed grass carp belly.
基金Supported by grant from CGMH, Taoyuan, Taiwan, No. CMRPG 33014
文摘A seven-month-old infant was admitted to our hospital with a 1-wk history of shortness of breath, dysphagia, and fever. Diagnosis of esophageal perforation follow- ing fish vertebra ingestion was made by history review, pneumomediastinum and an irregular hyperdense lesion noted in initial chest radiogram. Neck computed tomo- graphy (CT) confirmed that the foreign body located at the cricopharyngeal level and a small esophageal tra- cheal fistula was shown by esophagogram. The initial re- sponse to treatment of fish bone removal guided by pan- endoscopy and antibiotics administration was poor since pneumothorax plus empyema developed. Fortunately, the patient’s condition finally improved after decortica- tion, mediastinotomy and perforated esophagus repair. To our knowledge, this is the first case report of esopha- geal perforation due to fish bone ingestion in infancy. In addition to particular caution that has to be taken when feeding the innocent, young victim, it may indicate the importance of surgical intervention for complicated esophageal perforation in infancy.
文摘The active transmission of information from sender to receiver is a fundamental component of communication, and is therefore a primary facet in evolutionary models of sexual selection. Research in several systems has underlined the importance of multiple sensory modalities in courtship signals. However, we still tend to think of individuals as having a relatively static signal in consecutive communicative events. While this may be true for certain traits such as body size or coloration, behaviorally modulated signals can quickly violate this assumption. In this work, we explore how intraspecific variation may be an important component of interspecific signal divergence using cichlid fishes from Lake Malawi. Behavioral analyses were made using six species of Malawian cichlids from two divergent genera. While interspecific differences were found between congeners based on species-level analyses of both acoustic and audiovisual signals, intraspecific variation was of a similar magnitude. Specifically, individual fishes were found to possess highly plastic signal repertoires. This finding was ubiquitous across all species and resuited in a great deal of overlap between heterospecific individuals, despite statistically distinct species means. These results demonstrate that some aspects of courtship in Malawian cichlids are more plastic than previously proposed, and that studies must account for signal variability within individuals. We propose here that behavioral variability in signaling is important in determining the communication landscape on which signals are perceived. We review potential complexity deriving from multimodal signaling, discuss the sources for such lability, and suggest ways in which this issue may be approached experimentally .
