ULTIMO AGGIORNAMENTO BANCA DATI: 07/11/2025 14:33:35
The thermoregulatory function of brown adipose tissue (BAT) is due to the tissue-specific expression of uncoupling protein 1 (UCP1) which is thought to have evolved in early mammals. We report that a CpG island close to the UCP1 transcription start site is highly conserved in all 29 vertebrates examined ...
The capacity of testicular somatic cells to promote and sustain germ cell differentiation is largely regulated by sexual steroids and notably androgens. In fish species the importance of androgens is emphasized by their ability to induce sex reversal of the developing fries and to trigger spermatogenesis. ...
This study evaluated the suitability of flaxseed oil as a source of supplemental dietary lipid for fingerlings of rainbow trout (Oncorhynchus mykiss). Triplicate groups of the 30 fingerlings held under identical culture conditions were fed twice daily by iso-nitrogenous, iso-calorific and iso-lipidic ...
Background To ensure sustainable aquaculture, fish derived raw materials are replaced by vegetable ingredients. Fatty acid composition and contaminant status of farmed Atlantic salmon (Salmo salar L.) are affected by the use of plant ingredients and a spillover effect on consumers is thus expected. ...
The Southern Ocean, a region that will be an ocean acidification hotspot in the near future, is home to a uniquely adapted fauna that includes a diversity of lightly-calcified invertebrates. We exposed the larvae of the echinoid Sterechinus neumayeri to environmental levels of CO2 in McMurdo Sound (control: ...
Summary Biosurfactants are produced by hydrocarbon-degrading marine bacteria in response to the presence of water-insoluble hydrocarbons. This is believed to facilitate the uptake of hydrocarbons by bacteria. However, these diffusible amphiphilic surface-active molecules are involved in several other ...
Background While coverage of long-lasting insecticide-treated nets (LLIN) has steadily increased, a growing number of studies report gaps between net ownership and use. We conducted a mixed-methods social science study assessing the importance of net preference and use after Olyset® LLINs were distributed ...
Large organic food falls to the deep sea – such as whale carcasses and wood logs – are known to serve as stepping stones for the dispersal of highly adapted chemosynthetic organisms inhabiting hot vents and cold seeps. Here we investigated the biogeochemical and microbiological processes leading to ...
Infectious salmon anaemia virus (ISAV), a member of the Orthomyxoviridae family, infects and causes disease in farmed Atlantic salmon (Salmo salar L.). Previous studies have shown Atlantic salmon endothelial cells to be the primary targets of ISAV infection. However, it is not known if cells other than ...
Abstract Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania, are described and illustrated. These species closely resemble each other. Their affinities to other zooplanktivorous haplochromines from Lake Victoria are discussed. Haplochromis argenssp. n., which featured ...
The endoscopic and histopathological findings detected in Sparus aurata experimentally infected with third-stage Anisakis larvae without intermediate host are evaluated and discussed. In six fish, live nematode larvae were introduced by gastroscopy into the stomach. The first observation by endoscope, ...
Two genes, that is, 5S ribosomal sequences and antifreeze glycoprotein (AFGP) genes, were mapped onto chromosomes of eight Antarctic notothenioid fish possessing a X1X1X2X2/X1X2Y sex chromosome system, namely, Chionodraco hamatus and Pagetopsis macropterus (family Channichthyidae), Trematomus hansoni, ...
In order to achieve the rapid and mass diagnosis of fish diseases, it is proposed to set up a new and efficient model which closely connects rough set and Fuzzy C-means(FCM) clustering algorithm. First, the rough set was used for access to knowledge, that is, the typical cases of fish diseases were ...
The Zigbee network isssued in this paper is used to monitor the enviroment parameters of acquiculture water. Each sensor node of the network, which is composed of various sensors and a Zigbee chip CC2430, could measure temperature, velocity of flow, pH value, content of ammoniacal nitrogen etc. A GPRS ...
Rural drinking water security relates to people's life quality and health, this has caused Chinese government to pay attention to. Through field investigation and sampling, this paper basically make clear the water source quality for central water supply project of Jingzhou city, the results show that ...
Fish farmers send request to the intelligent diagnosis system through SMS (Short Message Service) for fish disease diagnosis, and according to fish disease knowledge, the characteristics of case description and the fish disease diagnostic mode of thinking the system makes diagnosis based on Bayesian ...
This paper analyzed the formation of wet injury that rape plants may encounter in its developmental stages in the middle and lower reaches of the Yangtze River, summarized the mechanism of crops under wet injury in the area, pointed out an influence of wet injury on rape development, finally put forward ...
Wastewater from aquiculture contains useful nutrients for plant, such as nitrogen and phosphorus. Drainage of the wastewater resulted in eutrophication of water body. The nutrients in wastewater from fish pond was assimilated and utilized by paddy field. Using test-pits with a relatively independent ...
The mechanical, thermodynamic, acoustic, optical, electrical and magneto electric characteristics of nanomaterials is differ from its coarse crystalloid. The far infrared ray transmitted by nanomaterials can improve water quality and reduce water associated molecule to 6-8, and it also can increase ...
With the global climate change, the increasing economic activity and excessive development in recent years, the climate ecological environment of Honghu Lake changes with frequent occurrence, sharp reversal of flood and drought and the atrophy of the natural lake, which lead to loss or degradation of ...