Zobrazeno 1 - 10
of 98
pro vyhledávání: '"R.J. Heitzman"'
Autor:
R.J. Heitzman
Publikováno v:
Analytica Chimica Acta. 275:17-22
This paper discusses the historical and present day situation to coordinate information on legislation and regulation of residues of veterinary drugs within the European Community (EC). Nowadays three separate Directorates (III, VI & XII) have import
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b0d1775ec66660485f80bd8553e2790
https://doi.org/10.1016/0003-2670(93)80273-n
https://doi.org/10.1016/0003-2670(93)80273-n
Autor:
D.J. Harwood, R.J. Heitzman
Publikováno v:
British Veterinary Journal. 133:564-571
SUMMARY Friesian steers were implanted with commercial preparations of anabolic steroids containing either an androgen, trenbolone acetate, or an oestrogen, oestradiol-17β, or as a combined implant. The residues of trenbolone in tissues taken at sla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83651f68efa8678860bfd12ab3c1365f
https://doi.org/10.1016/s0007-1935(17)33935-0
https://doi.org/10.1016/s0007-1935(17)33935-0
Publikováno v:
Scopus-Elsevier
SUMMARY Twelve Friesian × Ayrshire growing heifers were paired according to weight and age, and fed a controlled diet related to their liveweight. One animal from each pair was implanted with 300 mg trienbolone acetate before the start of a 2-week d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d31a31e196c905a6e53f91bca17b107d
https://doi.org/10.1016/s0007-1935(17)35337-x
https://doi.org/10.1016/s0007-1935(17)35337-x
Autor:
R.J. Heitzman
Publikováno v:
Journal of Steroid Biochemistry. 11:927-930
Anabolic agents are substances with physiological functions similar to those of the sex steroids which increase nitrogen retention and protein deposition in farm animals. When used correctly they significantly increased the daily live-weight gain and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abd0d414b14e6d9a90508a00ac716f6f
https://doi.org/10.1016/0022-4731(79)90032-3
https://doi.org/10.1016/0022-4731(79)90032-3
Publikováno v:
British Veterinary Journal. 136:168-174
SUMMARY The effects of trenbolone acetate (TBA) alone or in combination with oestradiol (TBA + OE2) on growth rate, feed conversion efficiency (FCE) and thyroid hormone status were studied in 11 Friesian cross-bred steers and six Friesian heifers. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41b4b6dfdf057f5b341c39b1ccf16f9c
https://doi.org/10.1016/s0007-1935(17)32340-0
https://doi.org/10.1016/s0007-1935(17)32340-0
Publikováno v:
Research in Veterinary Science. 30:7-13
The mode of action of the anabolic steroid trenbolone acetate (19-norandrost-4,9,11-trien-3-one-17-acetate) was studied through the endogenous hormonal response of castrated male sheep to subcutaneous implantation of 140 mg of trenbolone acetate and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bdcbbb4af9bad49b0f3ea3eb24dcb8e
https://doi.org/10.1016/s0034-5288(18)32598-0
https://doi.org/10.1016/s0034-5288(18)32598-0
Publikováno v:
British Veterinary Journal. 130:318-326
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbc3187108bf7b24c88446e37e05e4fa
https://doi.org/10.1016/s0007-1935(17)35834-7
https://doi.org/10.1016/s0007-1935(17)35834-7
Publikováno v:
British Veterinary Journal. 130:214-220
SUMMARY Nutritional and biochemical studies on bovine ketosis (acetonaemia) that have been carried out at the Institute for Research on Animal Diseases at Compton over the past ten years are reviewed in relation to relevant studies carried out elsewh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df76ca987ae80b0e9df57ed20469519b
https://doi.org/10.1016/s0007-1935(17)35885-2
https://doi.org/10.1016/s0007-1935(17)35885-2
Publikováno v:
European Journal of Biochemistry. 29:104-109
1 In this study, the hepatic concentrations of free and acetylated CoA and carnitine, and also hepatic redox state, have been determined in normal lactating cows and in lactating cows to which voren (dexamethasone 21-pyridine-4-carboxylate) was admin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03c9036923d9c8a9003f83d25c682b08
https://doi.org/10.1111/j.1432-1033.1972.tb01963.x
https://doi.org/10.1111/j.1432-1033.1972.tb01963.x
Autor:
G.D. Baird, R.J. Heitzman
Publikováno v:
Biochimica et Biophysica Acta (BBA) - General Subjects. 252:184-198
1. 1. The aim of these studies was to determine metabolic changes in the liver accompanying the decreased in blood ketone body content that follows administration of a glucocorticoid to a ketotic cow. Accordingly, the hepatic metabolism of ketotic co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb3769924a393c769f9cd8786c47537a
https://doi.org/10.1016/0304-4165(71)90107-3
https://doi.org/10.1016/0304-4165(71)90107-3