Zobrazeno 1 - 10
of 45
pro vyhledávání: '"D. D. S. Mackenzie"'
Autor:
C. M. C. Jenkinson, D. S. van der Linden, Paul R. Kenyon, Hugh T. Blair, S. W. Peterson, D. D. S. Mackenzie, S. T. Morris, Elwyn C. Firth
Publikováno v:
Livestock Science. 142:92-98
This study set out to investigate the effects of ewe size and pregnancy nutritional level on the development of singleton-foetuses in late pregnancy and was part of a large study investigating life-time effects of maternal nutrition on the offspring.
Autor:
D. D. S. Mackenzie, D. S. van der Linden, Hugh T. Blair, S. W. Peterson, Elwyn C. Firth, Paul R. Kenyon, S. T. Morris, C. M. C. Jenkinson
Publikováno v:
Livestock Science. 142:99-107
This study set out to investigate the effects of ewe size and nutrition during pregnancy on the development of twin-foetuses and was part of a large study investigating life-time effect of maternal size and nutrition on the offspring. Heavy (H) and l
Autor:
S. T. Morris, Elwyn C. Firth, Paul R. Kenyon, D. S. van der Linden, C. M. C. Jenkinson, D. D. S. Mackenzie, Hugh T. Blair, S. W. Peterson
Publikováno v:
Small Ruminant Research. 97:21-27
This study examined the effects of dam size and plane of nutrition during pregnancy on dam udder size, lamb colostrum intake, and lamb liveweight gain (LWG). The study also attempted to quantify the effects of a number of dam and offspring parameters
Autor:
Paul R. Kenyon, Elwyn C. Firth, D. D. S. Mackenzie, Hugh T. Blair, S. T. Morris, D. S. van der Linden, C. M. C. Jenkinson, S. W. Peterson, L. C. Davenport
Publikováno v:
Journal of Animal Science. 88:E40-E50
In temperate climates, the cost of providing feed is greater in winter than in other seasons, causing ewes to be fed restricted rations during some periods of pregnancy. Epidemiological information indicates that undernutrition of the fetus may affec
Autor:
D. S. van der Linden, D. D. S. Mackenzie, S. W. Peterson, C. M. C. Jenkinson, Paul R. Kenyon, Hugh T. Blair, Nicolas Lopez-Villalobos
Publikováno v:
Journal of Animal Science. 87:3944-3954
Many environmental factors applied postnatally are known to affect milk production of the dam, but to date, the effects of different fetal environments on subsequent first lactational performance of the offspring have not been reported. Four hundred
Autor:
S. T. Morris, Paul R. Kenyon, C. M. C. Jenkinson, Elwyn C. Firth, Hugh T. Blair, P. L. Johnston, D. D. S. Mackenzie, S. W. Peterson
Publikováno v:
New Zealand Journal of Agricultural Research. 52:203-212
Ewe size, pregnancy nutrition and pregnancy rank are known to affect the productive performance of ewes and their offspring. The aim of the present study was to compare the effects of two nutritional regimens, from day 21 to day 140 of pregnancy, in
Autor:
Nicole C. Roy, Warren C. McNabb, A. A. Hayashi, Susan A. McCoard, Katia Nones, David Pacheco, D. D. S. Mackenzie
Publikováno v:
Journal of Dairy Science. 92:1889-1899
The underlying molecular mechanisms that control milk yield and milk protein yield in domestic animals are not completely understood. In this study, the galactopoietic response to exogenous growth hormone (GH) was used as an experimental model to inv
Autor:
Matthew P. G. Barnett, D. D. S. Mackenzie, Nicole C. Roy, A. A. Hayashi, Warren C. McNabb, Susan A. McCoard
Publikováno v:
Journal of Animal and Feed Sciences. 13:401-404
Autor:
D. D. S. Mackenzie, C. M. C. Jenkinson, S. W. Peterson, D. S. van der Linden, Nicolas Lopez-Villalobos, Hugh T. Blair, Paul R. Kenyon
Publikováno v:
Journal of developmental origins of health and disease. 1(1)
It was hypothesized that exposure of the fetus to adverse conditions in utero due to either maternal constraint or nutrition may result in developmental adaptations altering metabolism and postnatal growth of the offspring. Heavy (H) and light (L) Ro
Publikováno v:
Domestic Animal Endocrinology. 17:409-419
The ontogeny of hepatic growth hormone (GH) receptors (GHR), as measured by responses of both plasma insulin-like growth factor-I (IGF-I) and hepatic GHR to an exogenous bGH stimulus, was examined using sheep of different ages (Days 1-7, 14-21, 28-35