Zobrazeno 1 - 10
of 591
pro vyhledávání: '"T. Bartels"'
Publikováno v:
Poultry Science, Vol 103, Iss 1, Pp 103214- (2024)
ABSTRACT: Conventional fluorescent tubes are increasingly being replaced with innovative light-emitting diodes (LEDs) for lighting poultry houses. However, little is known about whether the flicker frequencies of LED luminaires are potential stressor
Externí odkaz:
https://doaj.org/article/a0c5106a692a4da48816f9e6144b87fa
Autor:
T. Bartels, V. Fisikopoulos
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLVI-4-W2-2021, Pp 1-8 (2021)
Geometric predicates are used in many GIS algorithms, such as the construction of Delaunay Triangulations for Triangulated Irregular Networks (TIN) or geospatial predicates. With floating-point arithmetic, these computations can incur roundoff errors
Externí odkaz:
https://doaj.org/article/4a1186dbcb764fe183fb5b7a4314b781
Publikováno v:
The Cryosphere, Vol 15, Pp 2001-2020 (2021)
Laboratory experiments are presented on the phase change at the surface of sodium chloride–water mixtures at temperatures between 259 and 241 K. Chloride is a ubiquitous component of polar coastal surface snow. The chloride embedded in snow is invo
Externí odkaz:
https://doaj.org/article/c1116a700b614cbdad05133495882d02
Publikováno v:
Poultry Science, Vol 99, Iss 12, Pp 6326-6331 (2020)
Injurious pecking is one of the main welfare issues in fattening turkey husbandry. Birds pecked by conspecifics can suffer from serious injuries that may even lead to the death of the victimized animals or require their culling. In the present study,
Externí odkaz:
https://doaj.org/article/654737fa99d3495f81a50e07b23a0714
Autor:
J. Edebeli, J. C. Trachsel, S. E. Avak, M. Ammann, M. Schneebeli, A. Eichler, T. Bartels-Rausch
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 13443-13454 (2020)
Earth's snow cover is very dynamic on diurnal timescales. The changes to the snow structure during this metamorphism have wide-ranging impacts on processes such as avalanche formation and on the capacity of surface snow to exchange trace gases with t
Externí odkaz:
https://doaj.org/article/46f8b258325641ce99199cd5eb014ad9
Publikováno v:
Poultry Science, Vol 100, Iss 12, Pp 101494- (2021)
ABSTRACT: The feather corticosterone concentration (fCORT) is increasingly used to assess long-term stress in birds as this indicator provides the potential to retrospectively evaluate the adrenocortical activity of a bird during the growth period of
Externí odkaz:
https://doaj.org/article/ed9646f8077644c1ae4a741c7b46c46d
Autor:
D. Freihold, T. Bartels, S. Bergmann, J. Berk, F. Deerberg, A. Dressel, M.H. Erhard, O. Ermakow, M. Huchler, B. Spindler, S. Thieme, M.-E. Krautwald-Junghanns, H.M. Hafez
Publikováno v:
Journal of Applied Poultry Research, Vol 30, Iss 3, Pp 100196- (2021)
Externí odkaz:
https://doaj.org/article/70d597ed8bf84546a925a4c49facbe44
Publikováno v:
Poultry Science, Vol 100, Iss 9, Pp 101361- (2021)
ABSTRACT: The measurement of feather corticosterone concentrations (fCORT) is a comparatively new method for the evaluation of stress in wild and captive birds and may be a useful indicator in animal welfare research. The aim of this study was to ass
Externí odkaz:
https://doaj.org/article/24de9a4d750b417799b2745bfdb5769c
Autor:
D. Freihold, T. Bartels, S. Bergmann, J. Berk, F. Deerberg, A. Dressel, M.H. Erhard, O. Ermakow, M. Huchler, B. Spindler, S. Thieme, M.-E. Krautwald-Junghanns, H.M. Hafez
Publikováno v:
Journal of Applied Poultry Research, Vol 30, Iss 2, Pp 100145- (2021)
Summary: In the present study the occurrence of turkey carcass alterations such as breast skin lesions, liver lesions, and swelling of the hock joint in turkeys reared in organic farms was investigated at slaughterhouses in Germany. The examinations
Externí odkaz:
https://doaj.org/article/13ab5cef464e48919fcf89df4a1e84d6
Publikováno v:
Animal, Vol 15, Iss 6, Pp 100230- (2021)
Analysing hair cortisol concentrations (HCCs) is a minimally invasive way to retrospectively assess long-term stress, and its application in studies of animal welfare and stress has attracted considerable interest. However, not only stress-related ef
Externí odkaz:
https://doaj.org/article/ceb581ce60c84b8287055397d7866bca