LOCUS KF632582 547 bp DNA linear VRL 07-DEC-2013 DEFINITION Gallid herpesvirus 1 strain ILT-1 glycoprotein G gene, partial cds. ACCESSION KF632582 VERSION KF632582.1
Abdulatif Asheg(9-2013)

抄録 地球環境の温暖化によって,野生動物の繁殖や冬眠行動が大きな影響を受けることは容易に想像できる。しかし,実際に冬眠がどのような環境条件に影響されているのかは不明である。そこで,本研究では,冬眠行動を誘発する環境条件について検討を行った。冬眠する齧歯目として知られているシリアンハムスターをモデルとして用いた。冬眠の誘発にとって,気温の低下と日照時間の短縮は最も重要な要因であると考えられる。そこで,ハムスターを恒暗・低温環境下で飼育したところ,冬眠に入った。一方,これらの条件に加えて,飼料としてヒマワリの種子や高脂肪食を充分に与えたのち,給餌制限を行った場合,自由摂食をさせた個体と比較して,短期間で冬眠状態に入ることが見いだされた。このことは,食物の量と組成も冬眠行動の誘発に深く関連することを示唆するものである。また,これまでの実験結果から,体重の大きい個体ほど冬眠に入りやすいことがわかった。このことは,体内に蓄積された脂肪細胞から分泌されるレプチンなどのホルモンが,冬眠行動と関連する可能性を示唆するものである。これらの結果から,冬眠は,環境温度や日照時間,そして食物といった外部環境の変化と関連することが示唆された。 It is considered that global warming and exposure to endocrine disrupting chemicals can influence reproduction and hibernation of wildlife. However, environmental factors responsible for such behavioral differences are not well recognized. Therefore, in this study we analyzed environmental conditions that are critical for inducing hibernation. Non-seasonal hibernators, Syrian hamsters were used in this study. It has been pointed out that a low environmental temperature is an important factor to induce hibernation. So, hamsters were kept at a cold room. After about two or three months, they hibernated. Next, food restriction under the cold environment was performed. When the hamsters were fed sunflower seeds or high fat food not standard laboratory chow and then food supply was restricted, they efficiently hibernated in a shorter time period compared with those which were given free access to food. This suggests that the quantity and nutritional composition of food can affect hibernating behavior in addition to a low environmental temperature. We noticed that hibernation is more efficiently induced in obese hamsters than in thin ones. This may indicate that hormones derived from adipose tissue including leptin could be related to hibernation. These results suggest that hibernation might be associated with external environmental factors (environmental temperature and food composition). arabic 6 English 57
Marwan Draid(3-2007)

Salmonella enterica can be considered as one of the most important causes of foodpoisoning with poultry thought to be the main source. Although S. Typhimurium, S. Enteritidis and the vast majority of other Salmonella serovars generally produce little systemic disease in adult chickens, they are able to colonize the alimentary tract of poultry. The two caeca are the main sites of the colonization of Salmonellae in chickens, and the bacteria can be easily harvested from the caeca for analysis. Bacterial proteins analysed utilizing SDS-PAGE showed differences between in vitro and in vivo that out of about 40 protein bands of in vitro preparation only a few (3-5) bands can be visualized from in vivo preparations. We suggested that some avian proteases might be responsible. Accordingly, and to investigate the hypothesis that bacterial-precipitated protein harvested from chickens is thought to be more protective than bacteria grown in broth culture, the immunogenicity of protein-precipitated vaccines harvested from chicken intestine and those from broth culture (in vitro), were compared using bacterial proteins as an orally inoculated vaccine candidate in chicken. The results demonstrated that the in vitro sonicated proteins obtained from a nutrient broth culture had a much better protective vaccine effect than the in vivo sonicated proteins preparations harvested from bacteria grown in chickens arabic 14 English 81
Altayeb Elazomi, Elhadi Araibi, Abdulgader Dhawi, Hatem Khpiza, Susan Liddell, Margret Lovell, Paul Barrow(12-2016)