Zobrazeno 1 - 10
of 80
pro vyhledávání: '"F.M. Davidson"'
Publikováno v:
Scopus-Elsevier
Previous studies examining the effect of age on gilt reproduction have generally failed to discriminate between chronological (i.e. days) and physiological age (i.e. number of oestrous cycles experienced) and the importance of each factor remains unc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc1c47746ab8b3b77474a476e90a2e38
https://doi.org/10.1017/s1357729800055508
https://doi.org/10.1017/s1357729800055508
Autor:
Christopher T. Field, F.M. Davidson
Publikováno v:
Journal of Lightwave Technology. 12:1207-1223
The principles of operation and the results of performance measurements are reported of a new type of coherent optical receiver that used a dynamic volume index of refraction grating formed inside a photorefractive material to coherently combine sign
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ff194aa8e15ba8d3ab8a05f4a505fd9
https://doi.org/10.1109/50.301814
https://doi.org/10.1109/50.301814
Autor:
F.M. Davidson, X. Sun
Publikováno v:
Journal of Lightwave Technology. 10:1023-1032
Avalanche photodiodes (APDs) are studied for use as photon-counting detectors. The APD may be biased slightly above (Geiger mode) or slightly below its voltage breakdown point. In the latter case, if the photon absorption rate is low enough, each ind
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f412af39f51acf6c124f4b95cdb795bb
https://doi.org/10.1109/50.156841
https://doi.org/10.1109/50.156841
Publikováno v:
CLEO '97., Summaries of Papers Presented at the Conference on Lasers and Electro-Optics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b6ac9e6f973a84991a9f6f532665e34
https://doi.org/10.1109/cleo.1997.602215
https://doi.org/10.1109/cleo.1997.602215
Autor:
F.M. Davidson, Christopher T. Field
Publikováno v:
SPIE Proceedings.
The principles of operation and the results of performance measurements are reported of a new type of coherent optical receiver that used a dynamic volume index of refraction grating formed inside a photorefractive material to coherently combine sign
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b90708464d0fd2877c0d72e4012a7bd3
https://doi.org/10.1117/12.177639
https://doi.org/10.1117/12.177639
Autor:
A. Tarongi, L. Prieto, P. R. English, S.A. Edwards, N.S. Prathalingam, M. Ewen, F.M. Davidson, J.A. Rooke
Publikováno v:
Proceedings of the British Society of Animal Science. 1999:188-188
The transfer of passive immunity from sow to piglet is important for neonatal disease resistance. Piglet immune status will be influenced by the Ig concentration in colostrum, the amount of colostrum ingested and the duration of absorption of intact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffd6d03c5e62771ecb2b834592e2b663
https://doi.org/10.1017/s1752756200003434
https://doi.org/10.1017/s1752756200003434
Autor:
N.S. Prathalingam, S.A. Edwards, F.M. Davidson, W. Healey, L. Prieto, A. Tarongi, P.R. English
Publikováno v:
Proceedings of the British Society of Animal Science. 1999:186-186
There are commercial benefits in being able to predict the time of ovulation, post weaning in the sow. These include the use of a single insemination, with associated decreased AI and labour costs, and increased litter sizes resulting from the correc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9953b7a9781537baddd34c1de154536
https://doi.org/10.1017/s1752756200003410
https://doi.org/10.1017/s1752756200003410
Autor:
O. McPherson, J. Mora, P. Peral, P.R. English, F.M. Davidson, A. Ortega, J.A. Roden, R. Bamblett
Publikováno v:
Proceedings of the British Society of Animal Production (1972). 1994:191-191
Hypothermia is common in newborn piglets because of the failure to provide sufficient thermal comfort in the preferred resting areas adjacent to the udder in early life. One major reason for this is the fact that most farrowing pens have slatted floo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e3e0ae5ebfba469a27add98b798f688
https://doi.org/10.1017/s0308229600027367
https://doi.org/10.1017/s0308229600027367
Autor:
K. Pownall, O. McPherson, J.A. Roden, A.C. Shoniwa, Sandra Edwards, D. Llopart, F.M. Davidson, P.R. English
Publikováno v:
Proceedings of the British Society of Animal Production (1972). 1994:155-155
Modern sows have been selected for increased mature body size and prolifacy while measured milk yields greatly exceed previously published levels. Optimum lysine to energy ratio in the lactation diet of such sows is likely to be influenced by lactati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5adf3246254fe344bca705c3b07b287
https://doi.org/10.1017/s0308229600027008
https://doi.org/10.1017/s0308229600027008
Autor:
P. Peral, O. McPherson, J. Mora, Sandra Edwards, A. Ortega, R. Bamlett, P.R. English, J.A. Roden, F.M. Davidson
Publikováno v:
Proceedings of the British Society of Animal Production (1972). 1994:156-156
Litter size and milk yield have been significantly increased in modern genotypes and gilts are now lactating at a stage when they still have the potential for substantial maternal lean tissue growth. Voluntary intakes are seldom adequate to meet the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8511b5dcde94a8cf71fee798fff6f14f
https://doi.org/10.1017/s030822960002701x
https://doi.org/10.1017/s030822960002701x