The use of drugs/pharmaceuticals in cattle rearing is the object of a recent study, carried out by two researchers from the Centro de Estudos Farmacêuticos, Laboratório de Bromatologia, Hidrologia e Nutrição (Pharmaceutical Study Centre, Bromatology, Hydrology and Nutrition Laboratory) at the Pharmacy Faculty of Coimbra University. The consequences for consumers are, from a public health standpoint, the most significant conclusions to take from an exhaustive work of literary revision in these matters, started in 2000.
The fat content contained in the meat has been a concern for consumers, for reasons of health and diet, who consider it an unnecessary nutrient, or rather, best avoided. For this reason producers attempt to improve the return on their activities by producing more and better lean meat, and in the shortest possible space of time. In this context, the quantity of drugs/ pharmaceuticals used to promote animal growth has been increasing exponentially, especially connected to forms of intensive methods of farming, which has meant an increase in the availability of foods, but in the meanwhile it has also meant the presence of the residues of these products in not insignificant levels in meat.
The researchers Fernando Ramos and Maria Irene Noronha da Silveira have dedicated themselves to the study of the use of a group of pharmaceuticals known as andrenergic agonists b2. Part of the work of the authors – published in the Revista Portuguesa de Ciências Veterinárias (Portuguese Veterinary Science Magazine) in the Summer of 2002 – concentrates on the use of those substances in the average daily weight increase of chickens, swine, sheep and bovines, specifically the increase in muscle mass and the decrease of body fat. In fact, the andrenergic agonists b2 facilitate the production of leaner meat, but not without consequences, be it at a zootechny level, be it at levels of toxins for consumers. There have already been three cases of poisoning of groups of people in Portugal, between 1998 and 2001, and similar situations occurred in Spain, France and Italy in the last decade.
Fernando Ramos | alfa
A promising target for kidney fibrosis
21.04.2017 | Brigham and Women's Hospital
Stem cell transplants: activating signal paths may protect from graft-versus-host disease
20.04.2017 | Technische Universität München
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
24.04.2017 | Physics and Astronomy
24.04.2017 | Materials Sciences
24.04.2017 | Life Sciences