Journal of Comparative Physiology B最新文献

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Modulation of digestive enzyme activities in the avian digestive tract in relation to diet composition and quality. 禽类消化道消化酶活性与饲粮组成和品质的关系。
Journal of Comparative Physiology B Pub Date : 2017-02-01 Epub Date: 2016-10-01 DOI: 10.1007/s00360-016-1037-6
Kevin D Kohl, M Eugenia Ciminari, Juan G Chediack, James O Leafloor, William H Karasov, Scott R McWilliams, Enrique Caviedes-Vidal
{"title":"Modulation of digestive enzyme activities in the avian digestive tract in relation to diet composition and quality.","authors":"Kevin D Kohl, M Eugenia Ciminari, Juan G Chediack, James O Leafloor, William H Karasov, Scott R McWilliams, Enrique Caviedes-Vidal","doi":"10.1007/s00360-016-1037-6","DOIUrl":"10.1007/s00360-016-1037-6","url":null,"abstract":"<p><p>In nature, birds are faced with variable food sources that may differ in composition (protein vs. carbohydrates) and quality (highly digestible material vs. indigestible fiber). Studies in passerine birds and some commercial poultry demonstrate that the gastrointestinal tract can respond to varying diet composition and quality by changing morphology and/or activities of digestive enzymes. However, studies in additional avian species are warranted to understand generalities of these trends. We first fed juvenile mallards (Anas platyrhynchos), chickens (Gallus gallus), and quails (Coturnix coturnix) on either high-carbohydrate or high-protein diets. For the most part, birds fed the high-carbohydrate diet had higher small intestinal and cecal disaccharidase activities (maltase and sucrase). However, only mallards exhibited higher small intestinal aminopeptidase-N (APN) activities when fed the high-protein diet. These results differ from passerine birds, which largely modulate small intestinal proteases, but not disaccharidases. In another trial, we fed Canada geese (Branta canadensis) diets that varied in both their protein and fiber concentrations for approximately 3.5 months. Birds fed the high-fiber diets had significantly longer small intestines and caeca compared to those fed low-fiber diets. Additionally, geese fed the high-fiber diets exhibited lower mass-specific activities of small intestinal sucrase, and higher activities of APN when summed across the small intestine and ceca. Similar to the avian species above, geese fed the high-protein diets did not exhibit flexibility in their small intestinal APN activities. Overall, these experiments demonstrate that responsiveness of the avian digestive tract to diet composition may have phylogenetic or ecological constraints. Studies on other avian taxa are needed to understand these patterns.</p>","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"18 1","pages":"339-351"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81598921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hibernation reduces cellular damage caused by warm hepatic ischemia–reperfusion in ground squirrels 冬眠可减轻地松鼠因肝缺血再灌注引起的细胞损伤
Journal of Comparative Physiology B Pub Date : 2017-01-31 DOI: 10.1007/s00360-017-1056-y
Jessica P. Otis, Amanda C. Pike, J. Torrealba, H. Carey
{"title":"Hibernation reduces cellular damage caused by warm hepatic ischemia–reperfusion in ground squirrels","authors":"Jessica P. Otis, Amanda C. Pike, J. Torrealba, H. Carey","doi":"10.1007/s00360-017-1056-y","DOIUrl":"https://doi.org/10.1007/s00360-017-1056-y","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"18 1","pages":"639 - 648"},"PeriodicalIF":0.0,"publicationDate":"2017-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84435052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
Aging has the opposite effect on cAMP and cGMP circadian variations in rat Leydig cells 衰老对大鼠间质细胞cAMP和cGMP的昼夜变化有相反的影响
Journal of Comparative Physiology B Pub Date : 2016-12-03 DOI: 10.1007/s00360-016-1052-7
Aleksandar Z Baburski, Srdjan J. Sokanovic, S. Andric, T. Kostic
{"title":"Aging has the opposite effect on cAMP and cGMP circadian variations in rat Leydig cells","authors":"Aleksandar Z Baburski, Srdjan J. Sokanovic, S. Andric, T. Kostic","doi":"10.1007/s00360-016-1052-7","DOIUrl":"https://doi.org/10.1007/s00360-016-1052-7","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"29 1","pages":"613 - 623"},"PeriodicalIF":0.0,"publicationDate":"2016-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78310742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Differential expression and emerging functions of non-coding RNAs in cold adaptation 非编码rna在冷适应中的差异表达和新功能
Journal of Comparative Physiology B Pub Date : 2016-11-19 DOI: 10.1007/s00360-016-1049-2
Jacques J. Frigault, M. Morin, P. Morin
{"title":"Differential expression and emerging functions of non-coding RNAs in cold adaptation","authors":"Jacques J. Frigault, M. Morin, P. Morin","doi":"10.1007/s00360-016-1049-2","DOIUrl":"https://doi.org/10.1007/s00360-016-1049-2","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"33 1","pages":"19 - 28"},"PeriodicalIF":0.0,"publicationDate":"2016-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84105152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
The effect of body mass and diet composition on torpor patterns in a Malagasy primate (Microcebus murinus) 体重和饮食组成对马达加斯加灵长类动物(小头猴)睡眠模式的影响
Journal of Comparative Physiology B Pub Date : 2016-11-09 DOI: 10.1007/s00360-016-1045-6
J. Comp, Physiol, Sheena L. Faherty, Ryan Campbell, S. Hilbig, A. Yoder
{"title":"The effect of body mass and diet composition on torpor patterns in a Malagasy primate (Microcebus murinus)","authors":"J. Comp, Physiol, Sheena L. Faherty, Ryan Campbell, S. Hilbig, A. Yoder","doi":"10.1007/s00360-016-1045-6","DOIUrl":"https://doi.org/10.1007/s00360-016-1045-6","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"77 1","pages":"677 - 688"},"PeriodicalIF":0.0,"publicationDate":"2016-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77374430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Avian thermoregulation in the heat: efficient evaporative cooling in two southern African nightjars 鸟类在高温下的体温调节:两只非洲南部夜鹰的有效蒸发冷却
Journal of Comparative Physiology B Pub Date : 2016-11-03 DOI: 10.1007/s00360-016-1047-4
Ryan S. O’Connor, B. Wolf, R. Brigham, A. McKechnie
{"title":"Avian thermoregulation in the heat: efficient evaporative cooling in two southern African nightjars","authors":"Ryan S. O’Connor, B. Wolf, R. Brigham, A. McKechnie","doi":"10.1007/s00360-016-1047-4","DOIUrl":"https://doi.org/10.1007/s00360-016-1047-4","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"2 1","pages":"477 - 491"},"PeriodicalIF":0.0,"publicationDate":"2016-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83679888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Thermal implications of interactions between insulation, solar reflectance, and fur structure in the summer coats of diverse species of kangaroo 不同种类袋鼠夏季皮毛隔热、太阳反射率和皮毛结构相互作用的热影响
Journal of Comparative Physiology B Pub Date : 2016-11-01 DOI: 10.1007/s00360-016-1043-8
T. Dawson, S. Maloney
{"title":"Thermal implications of interactions between insulation, solar reflectance, and fur structure in the summer coats of diverse species of kangaroo","authors":"T. Dawson, S. Maloney","doi":"10.1007/s00360-016-1043-8","DOIUrl":"https://doi.org/10.1007/s00360-016-1043-8","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"281 1","pages":"517 - 528"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77837386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Metabolic and regulatory responses involved in cold acclimation in Atlantic killifish, Fundulus heteroclitus 大西洋鳉鱼冷驯化的代谢和调控反应
Journal of Comparative Physiology B Pub Date : 2016-10-27 DOI: 10.1007/s00360-016-1042-9
T. Healy, Dillon J. Chung, Kyle G. Crowther, P. Schulte
{"title":"Metabolic and regulatory responses involved in cold acclimation in Atlantic killifish, Fundulus heteroclitus","authors":"T. Healy, Dillon J. Chung, Kyle G. Crowther, P. Schulte","doi":"10.1007/s00360-016-1042-9","DOIUrl":"https://doi.org/10.1007/s00360-016-1042-9","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"73 1","pages":"463 - 475"},"PeriodicalIF":0.0,"publicationDate":"2016-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86349192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Establishing the thermal window for aerobic scope in New Zealand geoduck clams (Panopea zelandica) 新西兰象拔蚌(Panopea zelandica)有氧视野热窗的建立
Journal of Comparative Physiology B Pub Date : 2016-10-15 DOI: 10.1007/s00360-016-1038-5
D. Le, A. Alfaro, N. Ragg, Zoë Hilton, N. King
{"title":"Establishing the thermal window for aerobic scope in New Zealand geoduck clams (Panopea zelandica)","authors":"D. Le, A. Alfaro, N. Ragg, Zoë Hilton, N. King","doi":"10.1007/s00360-016-1038-5","DOIUrl":"https://doi.org/10.1007/s00360-016-1038-5","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"98 1","pages":"265 - 276"},"PeriodicalIF":0.0,"publicationDate":"2016-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74253680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Torpor and basking after a severe wildfire: mammalian survival strategies in a scorched landscape 严重野火后的麻木和日光浴:哺乳动物在烧焦景观中的生存策略
Journal of Comparative Physiology B Pub Date : 2016-10-12 DOI: 10.1007/s00360-016-1039-4
Jaya K. Matthews, Clare Stawski, G. Körtner, Cassandra A. Parker, F. Geiser
{"title":"Torpor and basking after a severe wildfire: mammalian survival strategies in a scorched landscape","authors":"Jaya K. Matthews, Clare Stawski, G. Körtner, Cassandra A. Parker, F. Geiser","doi":"10.1007/s00360-016-1039-4","DOIUrl":"https://doi.org/10.1007/s00360-016-1039-4","url":null,"abstract":"","PeriodicalId":15377,"journal":{"name":"Journal of Comparative Physiology B","volume":"2 1","pages":"385 - 393"},"PeriodicalIF":0.0,"publicationDate":"2016-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77475695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 30
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