Výsledky vyhledávání - "Duncan D. S. Mackenzie"

Quantitative fatty acid signature analysis on New Zealand sea lions: model sensitivity and diet estimates

Autor: Pádraig J. Duignan, L. Meynier, B. Louise Chilvers, Duncan D. S. Mackenzie, Patrick C. H. Morel

Publikováno v: Journal of Mammalogy. 91:1484-1495

We used quantitative fatty acid signature analysis (QFASA) to predict the long-term diet of New Zealand (NZ) sea lions (Phocarctos hookeri) incidentally caught in the NZ arrow squid (Nototodarus spp.) fishery. The QFASA model used fatty acid (FA) pro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4e25c01cdb3d05aad20ce760913e055c
https://doi.org/10.1644/09-mamm-a-299.1

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Comparison of methods for the analysis of New Zealand sea lion,Phocarctos hookeri, milk

Autor: F. G. Riet Saprtza, B. L. Chilvers, Duncan D. S. Mackenzie, I. S. Wilkinson, Alastair K. H. MacGibbon, Pádraig J. Duignan, Nicolas Lopez-Villalobos

Publikováno v: New Zealand Journal of Marine and Freshwater Research. 43:997-1006

The milk composition of New Zealand sea lion, Phocarctos hookeri, was determined using standard analytical methods, a MilkoScan™ FT 120 and an accelerated solvent extractor (ASE) for fat concentration. The results for fat, protein and total solid c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d74433afa9e83673fa07ed60b32c2a6f
https://doi.org/10.1080/00288330909510056

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Variability in the diet of New Zealand sea lion (Phocarctos hookeri) at the Auckland Islands, New Zealand

Autor: Pádraig J. Duignan, Patrick C. H. Morel, Duncan D. S. Mackenzie, B. Louise Chilvers, L. Meynier

Publikováno v: Marine Mammal Science. 25:302-326

We examined the stomach contents of 121 New Zealand (NZ) sea lions (Phocarctos hookeri) caught by the squid fishery during the summer/autumn 1997-2006 around the Auckland Islands (51°S, 166°E). Dietary variation was assessed among juveniles, lactat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3f2c64d8e5e32f2fd0159ba35b9b6b85
https://doi.org/10.1111/j.1748-7692.2008.00252.x

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Proximate composition, energy content, and fatty acid composition of marine species from Campbell Plateau, New Zealand

Autor: L. Meynier, Alastair K. H. MacGibbon, Pádraig J. Duignan, B. L. Chilvers, Duncan D. S. Mackenzie, Patrick C. H. Morel

Publikováno v: New Zealand Journal of Marine and Freshwater Research. 42:425-437

Campbell Plateau is an important fishing ground for the main commercial New Zealand species. Yet, studies on trophic interactions between species and their nutritional values are limited. The objectives of this study were to determine the proximate c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::53e29bd16fec0885dc0c62432655c4ff
https://doi.org/10.1080/00288330809509971

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Heterogeneity of milk fat globule membrane structure and composition as observed using fluorescence microscopy techniques

Autor: Geoffrey B. Jameson, Owen J. McCarthy, Stephen E. Holroyd, Jaap M Evers, Duncan D. S. Mackenzie, Richard G. Haverkamp

Publikováno v: International Dairy Journal. 18:1081-1089

Fluorescence microscopy studies of fat globules in milk and milk products using fat-soluble stains (Nile Blue or Nile Red) allow visualisation of the neutral fat (core) of the globules, but provide no information about the milk fat globule membrane (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45c9c2b54b5da72bf3ee11f8c4c20911
https://doi.org/10.1016/j.idairyj.2008.06.001

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Ontogeny and epithelial–stromal interactions regulate IGF expression in the ovine mammary gland

Autor: Russel C Hovey, Duncan D. S. Mackenzie, Thomas B. McFadden, Helen W. Davey

Publikováno v: Molecular and Cellular Endocrinology. 136:139-144

Although the insulin-like growth factors (IGF-I and -II) have been implicated in the stimulation of mammogenesis, little is known of their regulation in the mammary gland. In this study we removed epithelial tissue from one of the two mammary glands

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b40ca3d75139d2afe89aeeecec8d2b1
https://doi.org/10.1016/s0303-7207(97)00223-2

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Responses of young energy-restricted sheep to chronically administered insulin-like growth factor I (IGF-I): evidence that IGF-I suppresses the hepatic growth hormone receptor

Autor: S. N. McCutcheon, Bernhard H. Breier, Peter Gluckman, Duncan D. S. Mackenzie, Seok Hong Min

Publikováno v: Endocrinology. 137:1129-1137

We have shown previously that chronic administration (8 weeks) of insulin-like growth factor-I (IGF-I) has little growth-promoting effect in well fed sheep. The aim of this study was to investigate the anabolic effects of IGF-I in energy-restricted c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c385954dee102ba92c4056251398044f
https://doi.org/10.1210/endo.137.3.8603584

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The bone-muscle ratio of fetal lambs is affected more by maternal nutrition during pregnancy than by maternal size

Autor: Steve T. Morris, S. W. Peterson, Paul R. Kenyon, P. L. Johnson, C. M. C. Jenkinson, Mark H. Vickers, Chris W. Rogers, Elwyn C. Firth, Duncan D. S. Mackenzie, Hugh T. Blair

Publikováno v: American journal of physiology. Regulatory, integrative and comparative physiology. 294(6)

Bone formation and loss are related to the strain imposed on bone by muscle forces. Bone mineral content (BMC) and lean mass (LM) of fetal lambs was determined at day 140 of pregnancy in 8 groups of ewes, which were of either large or small body size

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38dc5cfb0de9d7deef96c2f1411fd6f2
https://pubmed.ncbi.nlm.nih.gov/18385462

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Dietary fat regulates mammary stearoyl coA desaturase expression and activity in lactating mice

Autor: Thomas B. McFadden, K. Singh, Darren G. Hartley, Duncan D. S. Mackenzie

Publikováno v: The Journal of dairy research. 71(1)

Mice in mid lactation (n=6 per group) were fed a control diet (1·19% fat), or diets containing safflower oil (25% w/w) or olive oil (25% w/w) for 7 d. Mammary and liver stearoyl CoA desaturase (SCD) mRNA levels and mammary SCD activities were higher

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf454b482baafa42faf57b21ef5bc1af
https://pubmed.ncbi.nlm.nih.gov/15068059

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