The application of nanoparticles rose steeply in the last decade,where they have become a common ingredient used in processed human food,improving food properties such as shelf life and appearance.Nanoparticles have a...The application of nanoparticles rose steeply in the last decade,where they have become a common ingredient used in processed human food,improving food properties such as shelf life and appearance.Nanoparticles have also attracted considerable interest to the livestock industry,due to their efficacy in intestinal pathogen control,with the regulatory and consumer driven push for the removal of antibiotic growth promoters.The influence of selenium(Se) nanoparticles was investigated on a diverse and mature broiler caecal microbiota using in vitro culturing and 16 S rRNA gene sequencing methods for microbiota characterisation.Caecal microbiota was collected from 4 traditionally grown heritage roosters and grown for 48 h,in the presence and absence of Se nanoparticles,with 2 technical replicates each.The effect of rooster as a biological variable strongly overpowered the effects of nano-Se in the media,resulting in moderate effects on the structure and diversity of the caecal microbial community.However the nanoparticles showed a significant reduction(P <0.05) in the abundance of an emerging poultry pathogen,Enterococcus cecorum identical operational taxonomic units(OTU),which could be of notable interest in poultry production for targeted E.cecorum control without significant disturbance to the total microbial community.展开更多
The Japanese quail(Coturnix japonica) are popular both as an alternative protein source and as a model of choice for scientific research in several disciplines. There is limited published information on the histologic...The Japanese quail(Coturnix japonica) are popular both as an alternative protein source and as a model of choice for scientific research in several disciplines. There is limited published information on the histological features of the intestinal tract of Japanese quail. The only comprehensive reference is a book published in 1969. This study aims to fill that niche by providing a reference of general histological features of the Japanese quail, covering all the main sections of the intestinal tract. Both light and scanning electron microscope(SEM) images are presented. Results showed that the Japanese quail intestinal tract is very similar to that of the chicken with the exception of the luminal koilin membrane of the gizzard. Scanning electron microscopic photomicrographs show that in the Japanese quail koilin vertical rods are tightly packed together in a uniform manner making a carpet-like appearance. This differs in chicken where the conformations of vertical rods are arranged in clusters.展开更多
基金funded internally by Central Queensland Universitythe scholarship from the Poultry CRC established by the Australian Government.
文摘The application of nanoparticles rose steeply in the last decade,where they have become a common ingredient used in processed human food,improving food properties such as shelf life and appearance.Nanoparticles have also attracted considerable interest to the livestock industry,due to their efficacy in intestinal pathogen control,with the regulatory and consumer driven push for the removal of antibiotic growth promoters.The influence of selenium(Se) nanoparticles was investigated on a diverse and mature broiler caecal microbiota using in vitro culturing and 16 S rRNA gene sequencing methods for microbiota characterisation.Caecal microbiota was collected from 4 traditionally grown heritage roosters and grown for 48 h,in the presence and absence of Se nanoparticles,with 2 technical replicates each.The effect of rooster as a biological variable strongly overpowered the effects of nano-Se in the media,resulting in moderate effects on the structure and diversity of the caecal microbial community.However the nanoparticles showed a significant reduction(P <0.05) in the abundance of an emerging poultry pathogen,Enterococcus cecorum identical operational taxonomic units(OTU),which could be of notable interest in poultry production for targeted E.cecorum control without significant disturbance to the total microbial community.
基金conducted within the Poultry CRC,established and supported under the Australian Government's Cooperative Research Centres Program
文摘The Japanese quail(Coturnix japonica) are popular both as an alternative protein source and as a model of choice for scientific research in several disciplines. There is limited published information on the histological features of the intestinal tract of Japanese quail. The only comprehensive reference is a book published in 1969. This study aims to fill that niche by providing a reference of general histological features of the Japanese quail, covering all the main sections of the intestinal tract. Both light and scanning electron microscope(SEM) images are presented. Results showed that the Japanese quail intestinal tract is very similar to that of the chicken with the exception of the luminal koilin membrane of the gizzard. Scanning electron microscopic photomicrographs show that in the Japanese quail koilin vertical rods are tightly packed together in a uniform manner making a carpet-like appearance. This differs in chicken where the conformations of vertical rods are arranged in clusters.
