Výsledky vyhledávání - "G. A. Verkerk"

The development of reproductive management practices in New Zealand: what will the future hold in a consumer-focused, environmentally-conscious, export-driven marketplace?

Autor: C R, Burke, G A, Verkerk

Publikováno v: Reproduction in Domestic Ruminants. 7:339-353

The New Zealand (NZ) economy and its dairy industry are sensitive to global consumer perception of farming practices used to generate milk products because milk exports account for25% of national export earnings and90% of milk produced is exported as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd6b6d3f7d576c101830793b77ad56b1
https://doi.org/10.5661/rdr-vii-341

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The development of reproductive management practices in New Zealand: what will the future hold in a consumer-focused, environmentally-conscious, export-driven marketplace?

Autor: C. R. Burke, G. A. Verkerk

The New Zealand (NZ) economy and its dairy industry are sensitive to global consumer perception of farming practices used to generate milk products because milk exports account for > 25% of national export earnings and > 90% of milk produced is expor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c4701607850a6499db1a0471e653632
https://doi.org/10.7313/upo9781907284991.027

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Elevated plasma cortisol reduces permeability of mammary tight junctions in the lactating bovine mammary epithelium

Autor: Kerst Stelwagen, H.A. McFadden, V.C. Farr, D C van Espen, G A Verkerk

Publikováno v: The Journal of endocrinology. 159(1)

Induction of tight junction permeability in the mammary epithelium decreases milk secretion, and in cows tight junctions become leaky after 17 h of milk accumulation.In vitro studies demonstrate the importance of glucocorticoids for the formation and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4948488d51d37abbb2e0283e6f2e11a1
https://pubmed.ncbi.nlm.nih.gov/9795355

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Effect of cortisol on mammary tight junction (TJ) permeability in lactating dairy cows

Autor: Kerst Stelwagen, A.H. Phipps, G. A. Verkerk, Lindsay R. Matthews

Publikováno v: Livestock Production Science. 50:39-40

Intact mammary epithelial TJ are important for milk synthesis. Recent in vitro studies indicate that glucocorticoids are important for maintenance of mammary TJ. In the present study, we examined the effects of cortisol on mammary TJ integrity in viv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::adcb66e026de13e6b6b3ab146b0ee10b
https://doi.org/10.1016/s0301-6226(97)00071-7

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268. Experimentally induced hypoglycemia: a model to examine the effects of lactation on reproductive function in dairy cows?

Autor: R. T. Cursons, K. A. Watkins, Susanne Meier, G. A. Verkerk, P. J. S. Gore, Catherine Margaret Eleanor Barnett, D. E. Phillips

Publikováno v: Reproduction, Fertility and Development. 17:110

The metabolic changes subsequent to lactogenesis have been associated with poor reproduction in high-producing dairy cows.1,2 Periods of hypoglycaemia reflect severe energy deficit and are associated with changes in plasma levels of growth hormone (G

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b1b100f4f16f6614371b53a710d0e814
https://doi.org/10.1071/srb05abs268

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Adrenocortical responses to an adrenocorticotropic hormone in bulls and steers

Autor: G A Verkerk, K L Macmillan

Publikováno v: Journal of Animal Science. 75:2520

We hypothesized that the sexual status of male cattle would influence adrenocortical responses to exogenous ACTH. Eight male Holstein-Friesian cattle, four intact and four castrated at 4 mo of age, were submitted to adrenal response tests using .01 m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58de1dcc21218317500939e903ccc55a
https://doi.org/10.2527/1997.7592520x

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[Ischemic colitis]

Autor: G G, Verkerk, J H, van Tongeren

Publikováno v: Nederlands tijdschrift voor geneeskunde. 131(10)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::753e74906e56ea4a6414c38ccea87d68
https://pubmed.ncbi.nlm.nih.gov/3561534

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Idiopathic, non-infectious, non-erosive arthritis in a bitch

Autor: G A Verkerk, K J Kissling, C R Hutchings

Publikováno v: New Zealand veterinary journal. 28(5)

A 2 1/2-year-old Cavalier King Charles Spaniel bitch was examined because of recurring episodes of lameness and joint swelling over a period of 2 years. Clinical examination, radiography, serology, joint-fluid analysis and histopathology of the joint

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d0b145fec7c9659e387e87eb83a12e4
https://pubmed.ncbi.nlm.nih.gov/6933374

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Failure to obtain a weight gain response to vitamin B12 treatment in young goats grazing pasture that was cobalt deficient for sheep

Autor: G A Verkerk, L Mantleman, R G Clark

Publikováno v: New Zealand veterinary journal. 35(3)

Extract Madam: —The current upsurge in the farming of goats has resulted in an increased interest in trace elements in this species. In some areas goats are being farmed on soil types known to be marginally or moderately cobalt deficient for sheep.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::668deba55f7167d9a824164cabb93ca5
https://pubmed.ncbi.nlm.nih.gov/16031368

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