Manipulation of Growth in Farm Animals

Manipulation of Growth in Farm Animals

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In some countries, especially on the European continent, there still exists a remarkable veal market. This type of meat production seems, irrespective of any economic forecasts, to remain unchallenged so long as consumers expect that restaurants should offer courses like qr6ti de veauxq, qvitello a la casaq or qKalbsschnitzelq. Producers, at least since about the past 1-/2 decades, have been aware of the beneficial effect of anabolic agents in veal production. This is possible due to the lack of endogenous sexual hormones during the juvenile or prepuberal status of these animals. A discussion about the benefit / risk - evaluation in connection with the use of anabolic agents in general was promoted in recent years by the public. This concern occurred concomitantly with the detection of illegally treated veal calves and the occurrence of diethylstilbestrol (DES) residues in canned food containing veal. The aim of this paper is to summarize the present status of residue data in edible tissues and excreta in order to allow the evaluation of the risk (given in the paper of Hoffmann within this program) and to consider reasonable monitoring measures. We have to face the fact that without an efficient control system the illegal treatment of calves can not be excluded. Therefore, this paper will not only consider different compounds and formulations, but will also deal with practised routes of administration.... of Germany ABSTRACT The obvious benefit from the use of anabolic agents for fattening veal calves has forced us to ... After intramuscular injection of DES dissolved in oil a quick clearance within one to four weeks has been observed, ... The oestrogen levels in the muscle of untreated as well as treated calves were in the low picogram range while those in liver ... present addresses: 1) Institut fA¼r VeterinAirmedizin des Bundesgesundheitsamtes, 1OOO Berlin 65, Federal Republic ofanbsp;...

Title:Manipulation of Growth in Farm Animals
Author: J.F. Roche, D. O'Callaghan
Publisher:Springer Science & Business Media - 2012-12-06

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