background preloader

Actualité scientifique

Facebook Twitter

Journal of Food and Drug Analysis Volume 24, Issue 2, April 2016, Rapid screening of toxic salbutamol, ractopamine, and clenbuterol in pork sample by high-performance liquid chromatography—UV method. Abstract A rapid and simple high-performance liquid chromatography–UV method was developed for the separation and quantification of salbutamol, ractopamine, and clenbuterol in pork.

Journal of Food and Drug Analysis Volume 24, Issue 2, April 2016, Rapid screening of toxic salbutamol, ractopamine, and clenbuterol in pork sample by high-performance liquid chromatography—UV method

A mixture of acetonitrile–formic acid–ammonium acetate was used as the mobile phase to separate three β-agonists on a C18 column with gradient. The effects of the addition of formic acid and ammonium acetate to mobile phases on the separation of β-agonists were investigated. These additives can greatly improve the resolution and sensitivity. Under the optimized chromatographic condition, this separation does not need extra sample preparation.

Keywords. THEPETITIONSITE - Pétition : Ban the Pig-Farming Drug Ractopamine! (137 823 signatures) 137,825 signatures BY: Chris Wolverton TARGET: United States Department of Agriculture we've got 137,825 signatures, help us get to 140,000 U.S. farmers continue to use the growth-promoting drug ractopamine on their animals, even after bans in China, Russia and the European Union.

THEPETITIONSITE - Pétition : Ban the Pig-Farming Drug Ractopamine! (137 823 signatures)

Cienc. Rural vol.45 no.2 Santa Maria Feb. 2015 Association of ractopamine and antioxidants vitamins for finishing pigs. Produção Animal Associação de ractopamina e vitaminas antioxidantes para suínos em terminação.

Cienc. Rural vol.45 no.2 Santa Maria Feb. 2015 Association of ractopamine and antioxidants vitamins for finishing pigs

Cienc. Rural vol.45 no.8 Santa Maria Aug. 2015 Carcass quality and yield of pork cuts with the use of ractopamine. Produção Animal Qualidade da carcaça e rendimento de cortes suínos com o uso de ractopamina.

Cienc. Rural vol.45 no.8 Santa Maria Aug. 2015 Carcass quality and yield of pork cuts with the use of ractopamine

Braz. arch. biol. technol. vol.58 no.3 Curitiba May/June 2015 Metabolic and behavioral effects of ractopamine at continuous low levels in rats under stress. Human and Animal Health.

Braz. arch. biol. technol. vol.58 no.3 Curitiba May/June 2015 Metabolic and behavioral effects of ractopamine at continuous low levels in rats under stress

MEAT POULTRY 09/08/15 USDA approves ‘ractopamine-free’ label. 9/8/2015 - by MEAT+POULTRY Staff WASHINGTON – The US Dept. of Agriculture’s Never Fed Beta Agonists Program was intended for exporters.

MEAT POULTRY 09/08/15 USDA approves ‘ractopamine-free’ label

But a New York Times report states companies that do not export meat products can also use the label. Beta agonists have been used in food animal production to promote growth and leanness in livestock. NATURAL SOCIETY 11/01/15 Banned in 160 Nations, Why is This Growth Hormone in U.S. Meat? The fabulous taste of bacon is more popular than ever.

NATURAL SOCIETY 11/01/15 Banned in 160 Nations, Why is This Growth Hormone in U.S. Meat?

But if you are eating conventionally-produced bacon or other pork products, chances are great that you are consuming ractopamine, a livestock growth altering drug so dangerous that 160 countries around the world have banned its use. Not the U.S. though, where this chemical additive has been given the green light by the FDA, in spite of the fact that it endangers livestock and farm workers as well as consumers. Although the EU and Asia have banned ractopamine, estimates are that 80% of hogs produced in the U.S. and a lesser number of beef cattle are treated with the drug.

In fact since 2013, Smithfield Foods a former U.S. company and the world’s largest producer of pork products, is now working for China and Russia producing ractopamine-free pork. Of course some of Smithfield’s remaining U.S. plants still spit out ractopamine-laced products for American consumption. Why the FDA Says This Growth-Altering Drug is OK for Americans.

JPET May 5, 2014 Ractopamine, a Livestock Feed Additive, is a Full Agonist at Trace Amine-Associated Receptor 1. Ractopamine (RAC) is fed to an estimated 80% of all beef, swine and turkey raised in the United States.

JPET May 5, 2014 Ractopamine, a Livestock Feed Additive, is a Full Agonist at Trace Amine-Associated Receptor 1

It promotes muscle mass development, limits fat deposition and reduces feed consumption. However, it has several undesirable behavioral side effects in livestock, especially pigs, including restlessness, agitation, excessive oral‐facial movements and aggressive behavior. Numerous in vitro and in vivo studies suggest RAC's physiological actions begin with its stimulation of β1 and β2 adrenergic receptor‐mediated signaling in skeletal muscle and adipose tissue, however the molecular pharmacology of RAC's psychoactive effects is poorly understood.

The American Society for Pharmacology and Experimental Therapeutics. PREVENTION 17/09/15 The Sketchy New Ingredient In Your Bacon—And How To Avoid It. What's the deal with this mystery drug?

PREVENTION 17/09/15 The Sketchy New Ingredient In Your Bacon—And How To Avoid It

While the research is still out on its effect on humans, it's been shown to cause hyperactivity, broken bones, death, and other issues among pigs, according to FDA records. MORE: 12 Fish To Never Ever Eat The FDA approved ractopamine for use in pigs in 1999 (and later, in cows and turkeys), and while most of the drug does pass through animals quickly, per the Food and Agriculture Organization of the United Nations, traces may remain, since it's administered in the last weeks of an animal's life. Many other countries, however, aren't too keen on having any ractopamine—even in trace amounts—in their meat. In 2009, a European food safety panel said there wasn't enough evidence to prove meat produced using the drug is safe for us to eat, while countries such as China and Russia ban imports of US pork that contain the drug.

MORE: 25 Flat Belly Sassy Water Recipes. PLOS 12/03/14 Increased Mortality in Groups of Cattle Administered the β-Adrenergic Agonists Ractopamine Hydrochloride and Zilpa. The United States Food and Drug Administration (FDA) approved two β-adrenergic agonists (βAA) for in-feed administration to cattle fed in confinement for human consumption.

PLOS 12/03/14 Increased Mortality in Groups of Cattle Administered the β-Adrenergic Agonists Ractopamine Hydrochloride and Zilpa

Anecdotal reports have generated concern that administration of βAA might be associated with an increased incidence of cattle deaths. Our objectives, therefore, were to a) quantify the association between βAA administration and mortality in feedlot cattle, and b) explore those variables that may confound or modify this association. Three datasets were acquired for analysis: one included information from randomized and controlled clinical trials of the βAA ractopamine hydrochloride, while the other two were observational data on zilpaterol hydrochloride administration to large numbers of cattle housed, fed, and cared for using routine commercial production practices in the U.S. Figures. Meat Science Available online 10 October 2013 Sex-specific effect of ractopamine on quality attributes of pork frankfurters. Highlights Effects of ractopamine and sex on quality of pork frankfurters were studied.

Dietary ractopamine improved sensory texture of frankfurters. Influence of ractopamine on instrumental color and texture was sex-specific. Abstract Our objective was to determine the effect of dietary ractopamine and immunocastration on the quality attributes of pork frankfurters. Keywords Ractopamine; Immunocastration; Pork frankfurter; Instrumental quality; Sensory quality. African Journal of Food Science Vol. 6(11), pp. 294-301, 15 June, 2012 Effect of metabolic modifiers on meat quantity and qualit. Page 1 African Journal of Food Science Vol. 6(11), pp. 294-301, 15 June, 2012 Available online at DOI: 10.5897/AJFS12.046 ISSN 1996-0794 ©2012 Academic Journals Review Effect of metabolic modifiers on meat quantity and quality Bilatu Agza Gebre1*, Zelealem Tesfay Gebretsadik2 and Anil Kumar Anal2 1Ethiopian Institute of Agricultural Research, Livestock Research Process, Addis Ababa, Ethiopia. 2Asian Institute of Technology, Food Engineering and Bioprocess Technology, Bangkok, Thailand.

Accepted 17 April, 2012 The inadequacy of food supply due to the population growth together with urbanization, drive a significant demand for animal sources. European Journal of Experimental Biology, 2013, 3(2):258-261 The effects of different levels B-adrenergic agonist (Ractopamine) Journal of Basic & Applied Sciences, 2013, 9, 276-285 Ractopamine for Pigs: A Review about Nutritional Requirements.

Dr. Miklós Somai I was overwhelmed by the professionalism and fairness of the editorial team throughout the publishing process. I am very grateful for their excellent ... Dr Sandeep Kumar Vashist I am truly impressed with the professionalism and editorial process of Lifescience Global. ENGORMIX 16/01/13 Desempenho e características de carcaça de suínos em terminação recebendo diferentes níveis e marcas comerciai. Os animais, nos estágios iniciais de crescimento, têm seu metabolismo dirigido prioritariamente para funções proteinogênicas e lipolíticas em detrimento das proteolíticas e lipogênicas, resultando em um processo que favorece a deposição da massa muscular.

ENGORMIX 16/01/13 Desempenho e características de carcaça de suínos em terminação recebendo diferentes níveis e marcas comerciais de cloridrato de ractopamina – guatemalt

Durante a maturidade o crescimento cessa, e o suprimento de nutrientes se torna igual às necessidades oxidativas e de regeneração de tecidos. Assim, observa-se que durante essa fase a deposição de gordura pode superar a deposição de proteína (GONZALES et al, 1993). No desenvolvimento de produtos cárneos, gerar animais com menor relação gordura/carne tem sido um anseio de técnicos que trabalham no setor, sendo o produtor e o consumidor os grandes beneficiados com este progresso tecnológico. A ractopamina é administrada em rações de suínos em terminação, com a função de aumentar a deposição muscular e reduzir a deposição de gordura na carne, aumentando a quantidade de carne magra na carcaça (WATKINS et al., 1990).

Références universitaires

Scientific Bulletin, Series F, Biotechnologies, Vol. XVI, 2012 STUDY OF HIGH EFFICIENCY SYSTEMS TO RACTOPMINE DETECTION IN ENVIR. The American Journal of Emergency Medicine Available online 6 August 2013 Late diagnosis of an outbreak of leanness-enhancing ag. Received 8 April 2013; received in revised form 25 June 2013; accepted 1 July 2013. published online 08 August 2013.

The American Journal of Emergency Medicine Available online 6 August 2013 Late diagnosis of an outbreak of leanness-enhancing agent–related food poisoning – guatemalt

Introduction. J Anal Toxicol (2013) 37 (2): 117-121. Accumulation of Ractopamine Residues in Hair and Ocular Tissues of Animals during and aft. + Author Affiliations ↵*Author to whom correspondence should be addressed. Email: vulic@veinst.hr. Arq. Bras. Med. Vet. Zootec. vol.64 no.6 Belo Horizonte Dec. 2012 Ractopamin in the diet of Hungarian Carp reared in net cages. Ractopamina na dieta da carpa húngara (Cyprnus carpio) criada em tanques-rede.

World Applied Sciences Journal 21 (1): 69-72, 2013 The Effects of Ractopamine, Coenzyme Q and 10 L-Carnitine Supplementation, In. R. Bras. Zootec. vol.41 no.5 Viçosa May 2012 Ractopamine in diets for finishing pigs of different sexual categories. Ractopamine in diets for finishing pigs of different sexual categories1 Carlos Enrique da Trindade BarbosaI; Carolina Teixeira Costa SilvaI; Vinícius de Souza CantarelliI; Márcio Gilberto ZangeronimoII; Raimundo Vicente de SousaII; Cesar Augusto Pospissil GarbossaI; Níkolas de Oliveira AmaralIII; Walmes Marques ZevianiIV IDepartamento de Zootecnia – UFLA IIDepartamento de Medicina Veterinária – UFLA IIIEscola Agrotécnica Federal de Machado – Machado, MG IVDepartamento de Estatística – UFPR. PIGSITE 14/06/10 Why Ractopamine Increases Aggressive Behaviour. News Why Ractopamine Increases Aggressive Behaviour 14 June 2010.

PROFESSIONAL ANIMAL SCIENTIST - MARS 2011 - Comparative effects of zilpaterol hydrochloride and ractopamine hydrochloride on gro. + Author Affiliations 1 Corresponding author: donkersg@telus.net Abstract A randomized complete block design trial was conducted with 3,444 beef heifers housed in 10 pens per treatment and fed barley-based diets to evaluate the effects of ractopamine (Optaflexx, Elanco Animal Health, Greenfield, IN) and zilpaterol (Zilmax, Intervet/Schering-Plough Animal Health, De Soto, KS) on health, performance, carcass traits, and longissimus muscle tenderness in a commercial feedlot in western Canada. Treatments consisted of feeding Optaflexx at 20 mg/kg (100% DM basis) for 29 d at the end of the feeding period or Zilmax at 8.3 mg/kg (100% DM basis) for 20 d at the end of the feeding period, followed by a 4-d withdrawal period before slaughter.

United States Patent Application 20120129943 24/05/12 METHOD OF INCREASING OR MAINTAINING THE REPRODUCTIVE PERFORMANCE OF SOWS. LIVESTOCK SCIENCE - JANV 2012 - Meta-analysis of the relationship between ractopamine and dietary lysine levels on carcass chara. US FOOD POLICY 27/01/12 Three views of ractopamine in pigs. Helena Bottemiller this week writes a thorough summary of the international trade controversies over U.S. exports of pork from pigs that have been treated with the growth promoter ractopamine hydrochloride. R. Bras. Zootec. vol.41 no.5 Viçosa May 2012 Ractopamine in diets for finishing pigs of different sexual categories.