Title: Highly sensitive near-simultaneous assay of multiple 'lean meat agent' residues in swine urine using a disposable electrochemiluminescent immunosensors array.
Journal: Biosensors & bioelectronics20130115
Title: The interaction between ractopamine supplementation, porcine somatotropin and moisture infusion on pork quality.
Journal: Meat science20121001
Title: An electrochemical sensor for rapid determination of ractopamine based on a molecularly imprinted electrosynthesized o-aminothiophenol film.
Journal: Analytical and bioanalytical chemistry20121001
Title: Sulfation of ractopamine and salbutamol by the human cytosolic sulfotransferases.
Journal: Journal of biochemistry20120901
Title: Development of a single-chain variable fragment-alkaline phosphatase fusion protein and a sensitive direct competitive chemiluminescent enzyme immunoassay for detection of ractopamine in pork.
Journal: Analytica chimica acta20120729
Title: Multi-spectroscopic methods combined with molecular modeling dissect the interaction mechanisms of ractopamine and calf thymus DNA.
Journal: Molecular bioSystems20120706
Title: Myocardial toxicity in a group of greyhounds administered ractopamine.
Journal: Veterinary pathology20120501
Title: Effects of sequential feeding of β-adrenergic agonists on cull cow performance, carcass characteristics, and mRNA relative abundance.
Journal: Journal of animal science20120501
Title: UPLC-MS/MS determination of ractopamine residues in retinal tissue of treated food-producing pigs.
Journal: Journal of chromatography. B, Analytical technologies in the biomedical and life sciences20120501
Title: Effect of the administration program of 2 β-adrenergic agonists on growth performance and carcass and meat characteristics of feedlot ram lambs.
Journal: Journal of animal science20120501
Title: Sensitive detection of small molecules by competitive immunomagnetic-proximity ligation assay.
Journal: Analytical chemistry20120306
Title: The effect of corn distiller's dried grains with solubles, ractopamine, and conjugated linoleic acid on the carcass performance, meat quality, and shelf-life characteristics of fresh pork following three different storage methods.
Journal: Meat science20120301
Title: Determination of residual ractopamine concentrations by enzyme immunoassay in treated pig's tissues on days after withdrawal.
Journal: Meat science20120301
Title: Myostatin allelic status interacts with level of nutrition to affect growth, composition, and myofiber characteristics of lambs.
Journal: Journal of animal science20120201
Title: Segmental arterial mediolysis--an iatrogenic vascular disorder induced by ractopamine.
Journal: Cardiovascular pathology : the official journal of the Society for Cardiovascular Pathology20120101
Title: [A novel flow injection chemiluminescence method with ferricyanide and luminol for the determination of ractopamine in biological samples].
Journal: Guang pu xue yu guang pu fen xi = Guang pu20120101
Title: [Molecularly-imprinted solid phase extraction coupled with high performance liquid chromatography for the determination of ractopamine in feed samples].
Journal: Se pu = Chinese journal of chromatography20120101
Title: ERP grants first action status to candidate tissue residue methods for high-priority animal drugs.
Journal: Journal of AOAC International20120101
Title: Determination of ractopamine in swine, bovine, and turkey tissues by HPLC with fluorescence detection: first action 2011.22.
Journal: Journal of AOAC International20120101
Title: Molecularly imprinted solid-phase extraction for the selective HPLC determination of ractopamine in pig urine.
Journal: Journal of separation science20111201
Title: Impact of dietary energy level and ractopamine on growth performance, carcass characteristics, and meat quality of finishing pigs.
Journal: Journal of animal science20111101
Title: Fatty acid profiles and iodine value correlations between 4 carcass fat depots from pigs fed varied combinations of ractopamine and energy.
Journal: Journal of animal science20111101
Title: Covalent imprinted polymer for selective and rapid enrichment of ractopamine by a noncovalent approach.
Journal: Analytical and bioanalytical chemistry20111001
Title: Rapid determination of ractopamine in swine urine using surface-enhanced Raman spectroscopy.
Journal: Journal of agricultural and food chemistry20110928
Title: Dietary monensin level, supplemental urea, and ractopamine on fecal shedding of Escherichia coli O157:H7 in feedlot cattle.
Journal: Journal of animal science20110901
Title: Feedlot efficiency implications on greenhouse gas emissions and sustainability.
Journal: Journal of animal science20110801
Title: The impact of ractopamine hydrochloride on growth and metabolism, with special consideration of its role on nitrogen balance and water utilization in pork production.
Journal: Journal of animal science20110701
Title: Comparison of varying doses and durations of ractopamine hydrochloride on late-finishing pig carcass characteristics and meat quality.
Journal: Journal of animal science20110701
Title: Preparation, characterization and application of organic-inorganic hybrid ractopamine multi-template molecularly imprinted capillary monolithic column.
Journal: Analytica chimica acta20110429
Title: The effect of ractopamine hydrochloride on gene expression in adipose tissues of finishing pigs.
Journal: Journal of animal science20110401
Title: Gene expression of serotonin and dopamine receptors and monoamine oxidase-A in the brain of dominant and subordinate pubertal domestic pigs (Sus scrofa) fed a β-adrenoreceptor agonist.
Journal: Brain research20110324
Title: [Terahertz time-domain spectroscopy of ractopamine hydrochloride].
Journal: Guang pu xue yu guang pu fen xi = Guang pu20110301
Title: Fresh meat and further processing characteristics of ham muscles from finishing pigs fed ractopamine hydrochloride.
Journal: Journal of animal science20110101
Title: Effects of sequential implanting and ractopamine hydrochloride supplementation on carcass characteristics and longissimus muscle tenderness of calf-fed steers and heifers.
Journal: Journal of animal science20110101
Title: Simultaneous determination of clenbuterol, salbutamol and ractopamine in milk by reversed-phase liquid chromatography tandem mass spectrometry with isotope dilution.
Journal: Journal of chromatography. A20101210
Title: Effects of ractopamine and trenbolone acetate implants with or without estradiol on growth performance, carcass characteristics, adipogenic enzyme activity, and blood metabolites in feedlot steers and heifers.
Journal: Journal of animal science20101201
Title: Development and validation of a liquid chromatography tandem mass spectrometry method for the analysis of beta-agonists in animal feed and drinking water.
Journal: Journal of chromatography. A20100924
Title: Aggressiveness and brain amine concentration in dominant and subordinate finishing pigs fed the beta-adrenoreceptor agonist ractopamine.
Journal: Journal of animal science20100901
Title: Effect of distillers dried grains with solubles and ractopamine (Paylean) on quality and shelf-life of fresh pork and bacon.
Journal: Journal of animal science20100801
Title: Development of rapid immunoassays for the detection of ractopamine in swine urine.
Journal: Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment20100801
Title: Analysis of the interactions of mixtures of two beta-agonists steroids with bovine serum albumin: a fluorescence spectroscopy and chemometrics investigation.
Journal: The Analyst20100801
Title: Effect of ractopamine-HCl supplementation for 28 days on carcass characteristics, muscle fiber morphometrics, and whole muscle yields of six distinct muscles of the loin and round.
Journal: Meat science20100701
Title: Investigation of ractopamine-imprinted polymer for dispersive solid-phase extraction of trace beta-agonists in pig tissues.
Journal: Journal of separation science20100701
Title: Molecular spectroscopic studies on the interaction between ractopamine and bovine serum albumin.
Journal: Journal of pharmaceutical and biomedical analysis20100605
Title: Investigation of ractopamine molecularly imprinted stir bar sorptive extraction and its application for trace analysis of beta2-agonists in complex samples.
Journal: Journal of chromatography. A20100528
Title: Comparative effects of ractopamine hydrochloride and zilpaterol hydrochloride on growth performance, carcass traits, and longissimus tenderness of finishing steers.
Journal: Journal of animal science20100501
Title: Effects of ractopamine and sex on serum metabolites and skeletal muscle gene expression in finishing steers and heifers.
Journal: Journal of animal science20100401
Title: Behavior and peripheral amine concentrations in relation to ractopamine feeding, sex, and social rank of finishing pigs.
Journal: Journal of animal science20100301
Title: Effects of ractopamine hydrochloride are not confined to mammalian tissue: evidence for direct effects of ractopamine hydrochloride supplementation on fermentation by ruminal microorganisms.
Journal: Journal of animal science20100201
Title: Effect of dietary protein and lysine fluctuations in the absence and presence of ractopamine on performance and carcass quality of late-finishing pigs.
Journal: Journal of animal science20100201
Title: Development of a colloidal gold-based lateral-flow immunoassay for the rapid simultaneous detection of clenbuterol and ractopamine in swine urine.
Journal: Analytical and bioanalytical chemistry20091201
Title: Influence of beta-agonists (ractopamine HCl and zilpaterol HCl) on fecal shedding of Escherichia coli O157:H7 in feedlot cattle.
Journal: Journal of food protection20091201
Title: Ractopamine hydrochloride improves growth performance and carcass composition in immunocastrated boars, intact boars, and gilts.
Journal: Journal of animal science20091101
Title: Responses to maternal GH or ractopamine during early-mid pregnancy are similar in primiparous and multiparous pregnant pigs.
Journal: The Journal of endocrinology20091001
Title: Effect of preslaughter feeding and ractopamine hydrochloride supplementation on growth performance, carcass characteristics, and end product quality in market dairy cows.
Journal: Journal of animal science20090701
Title: Effect of ractopamine-hydrochloride on the fiber type distribution and shelf-life of six muscles of steers.
Journal: Journal of animal science20090501
Title: Molecularly imprinted polymer for the determination of trace ractopamine in pork using SPE followed by HPLC with fluorescence detection.
Journal: Journal of separation science20090501
Title: Simultaneous determination of salbutamol, ractopamine, and clenbuterol in animal feeds by SPE and LC-MS.
Journal: Journal of chromatographic science20090401
Title: Effects of a 'step-up' ractopamine feeding program, sex, and social rank on growth performance, hoof lesions, and Enterobacteriaceae shedding in finishing pigs.
Journal: Journal of animal science20090101
Title: Development and validation of a simple method for routine analysis of ractopamine hydrochloride in raw material and feed additives by HPLC.
Journal: Journal of AOAC International20090101
Title: Highly sensitive and specific liquid chromatography- tandem mass spectrometry method for testing ractopamine in cow and sheep urine.
Journal: Journal of analytical toxicology20090101
Title: Rapid determination of ractopamine residues in edible animal products by enzyme-linked immunosorbent assay: development and investigation of matrix effects.
Journal: Journal of biomedicine & biotechnology20090101
Title: Differential response of cull cow muscles to the hypertrophic actions of ractopamine-hydrogen chloride.
Journal: Journal of animal science20081201
Title: Carcass, meat quality, and sensory characteristics of heavy body weight pigs fed ractopamine hydrochloride (Paylean).
Journal: Journal of animal science20081201
Title: Interactive effect of ractopamine and dietary fat source on pork quality characteristics of fresh pork chops during simulated retail display.
Journal: Journal of animal science20081001
Title: Effect of feedlot management system on response to ractopamine-HCl in yearling steers.
Journal: Journal of animal science20080901
Title: The effects of ractopamine-hydrogen chloride (Optaflexx) on performance, carcass characteristics, and meat quality of finishing feedlot heifers.
Journal: Journal of animal science20080401
Title: Effective monitoring for ractopamine residues in samples of animal origin by SPR biosensor and mass spectrometry.
Journal: Analytica chimica acta20080211
Title: Effects of ractopamine supplementation and postmortem aging on longissimus muscle palatability of beef steers differing in biological type.
Journal: Journal of animal science20080101
Title: Effects of ractopamine hydrochloride on performance, rate and variation in feed intake, and acid-base balance in feedlot cattle.
Journal: Journal of animal science20071101
Title: Effects of pantothenic acid on growth performance and carcass characteristics of growing-finishing pigs fed diets with or without ractopamine hydrochloride.
Journal: Journal of animal science20071001
Title: Interactive effect of ractopamine and dietary fat source on quality characteristics of fresh pork bellies.
Journal: Journal of animal science20071001
Title: Effects of steroidal implantation and ractopamine-HCl on nitrogen retention, blood metabolites and skeletal muscle gene expression in Holstein steers.
Journal: Journal of animal physiology and animal nutrition20071001
Title: Determination method for ractopamine in swine and cattle tissues using LC/MS.
Journal: Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan20071001
Title: Ractopamine induces differential gene expression in porcine skeletal muscles.
Journal: Journal of animal science20070901
Title: Response to ractopamine-HCl in heifers is altered by implant strategy across days on feed.
Journal: Journal of animal science20070901
Title: Effect of ractopamine-hydrochloride and trenbolone acetate on longissimus muscle fiber area, diameter, and satellite cell numbers in cull beef cows.
Journal: Journal of animal science20070801
Title: Effects of ractopamine supplementation on growth performance and carcass characteristics of feedlot steers differing in biological type.
Journal: Journal of animal science20070701
Title: Beta-adrenergic regulation of uncoupling protein expression in swine.
Journal: Comparative biochemistry and physiology. Part A, Molecular & integrative physiology20070601
Title: Development and identification of monoclonal antibodies against ractopamine.
Journal: Hybridoma (2005)20070601
Title: Residue depletion of ractopamine and its metabolites in swine tissues, urine, and serum.
Journal: Journal of agricultural and food chemistry20070530
Title: Time-resolved fluoroimmunoassay for ractopamine in swine tissue.
Journal: Analytical and bioanalytical chemistry20070201
Title: Response to ractopamine-hydrogen chloride is similar in yearling steers across days on feed.
Journal: Journal of animal science20070201
Title: Effects of two beta-adrenergic agonists on finishing performance, carcass characteristics, and meat quality of feedlot steers.
Journal: Journal of animal science20061201
Title: Effects of ractopamine supplementation on behavior of British, Continental, and Brahman crossbred steers during routine handling.
Journal: Journal of animal science20061201
Title: Effects of ractopamine and protein source on growth performance and carcass characteristics of feedlot heifers.
Journal: Journal of animal science20061001
Title: Effect of ractopamine HCl supplementation on fecal shedding of Escherichia coli O157:H7 and Salmonella in feedlot cattle.
Journal: Current microbiology20061001
Title: Effects of ractopamine HCl on Escherichia coli O157:H7 and Salmonella in vitro and on intestinal populations and fecal shedding in experimentally infected sheep and pigs.
Journal: Current microbiology20060701
Title: Anabolic effects of feeding beta2-adrenergic agonists on rainbow trout muscle proteases and proteins.
Journal: Comparative biochemistry and physiology. Part A, Molecular & integrative physiology20060601
Title: Technical note: a monoclonal antibody-based immunoassay for determination of ractopamine in swine feeds.
Journal: Journal of animal science20060501
Title: [Determination of ractopamine in animal urine by SPE-HPLC].
Journal: Se pu = Chinese journal of chromatography20060501
Title: Evaluation of the effects of dietary fat, conjugated linoleic acid, and ractopamine on growth performance, pork quality, and fatty acid profiles in genetically lean gilts.
Journal: Journal of animal science20060301
Title: Modulation of leptin, insulin, and growth hormone in obese pony mares under chronic nutritional restriction and supplementation with ractopamine hydrochloride.
Journal: Veterinary therapeutics : research in applied veterinary medicine20060101
Title: The effects of ractopamine hydrochloride on lean carcass yields and pork quality characteristics.
Journal: Journal of animal science20051201
Title: Effects of ractopamine on performance and composition of pigs phenotypically sorted into fat and lean groups.
Journal: Journal of animal science20050601
Title: Effects of different cereal grains and ractopamine hydrochloride on performance, carcass characteristics, and fat quality in late-finishing pigs.
Journal: Journal of animal science20050101
Title: Determination of beta-agonist residues in bovine urine using liquid chromatography-tandem mass spectrometry.
Journal: Journal of AOAC International20050101
Title: The effect of dietary ractopamine concentration and duration of feeding on growth performance, carcass characteristics, and meat quality of finishing pigs.
Journal: Journal of animal science20041101
Title: Effects of dietary lysine and energy density on performance and carcass characteristics of finishing pigs fed ractopamine.
Journal: Journal of animal science20041101
Title: Response of barrows to space allocation and ractopamine.
Journal: Journal of animal science20041101
Title: Effect of a ractopamine feeding program on growth performance and carcass composition in finishing pigs.
Journal: Journal of animal science20040801
Title: beta-Adrenergic receptor agonists increase apoptosis of adipose tissue in mice.
Journal: Domestic animal endocrinology20040101
Title: Detection and confirmation of ractopamine and its metabolites in horse urine after Paylean administration.
Journal: Journal of analytical toxicology20040101
Title: Regulation of the rainbow trout (Oncorhynchus mykiss) hepatic beta2-adrenoceptor by adrenergic agonists.
Journal: Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology20031001
Title: Determination of ractopamine in cattle and sheep urine samples using an optical biosensor analysis: comparative study with HPLC and ELISA.
Journal: Journal of agricultural and food chemistry20030618
Title: The effect of feeding ractopamine (Paylean) on muscle quality and sensory characteristics in three diverse genetic lines of swine.
Journal: Journal of animal science20030601
Title: Development of a model to describe the compositional growth and dietary lysine requirements of pigs fed ractopamine.
Journal: Journal of animal science20030501
Title: Beta-adrenergic receptor subtypes that mediate ractopamine stimulation of lipolysis.
Journal: Journal of animal science20030301
Title: The effects of ractopamine on the behavior and physiology of finishing pigs.
Journal: Journal of animal science20030201
Title: Ractopamine treatment biases in the prediction of pork carcass composition.
Journal: Journal of animal science20030101
Title: Stereoselectivity of porcine beta-adrenergic receptors for ractopamine stereoisomers.
Journal: Journal of animal science20030101
Title: Simultaneous determination of Zilpaterol and other beta agonists in calf eye by gas chromatography/tandem mass spectrometry.
Journal: Journal of AOAC International20030101
Title: Binding of ractopamine HCl to ocular tissues of cattle and turkeys in vivo and to melanin in vitro.
Journal: Journal of animal science20021101
Title: Identification of ractopamine residues in tissue and urine samples at ultra-trace level using liquid chromatography-positive electrospray tandem mass spectrometry.
Journal: Journal of chromatography. B, Analytical technologies in the biomedical and life sciences20020705
Title: Paylean alters myosin heavy chain isoform content in pig muscle.
Journal: Journal of animal science20020701
Title: Application of a monoclonal antibody-based enzyme-linked immunosorbent assay for the determination of ractopamine in incurred samples from food animals.
Journal: Journal of agricultural and food chemistry20020508
Title: Tissue residues of ractopamine and urinary excretion of ractopamine and metabolites in animals treated for 7 days with dietary ractopamine.
Journal: Journal of animal science20020501
Title: Liquid chromatography/electrospray tandem mass spectrometric analysis of incurred ractopamine residues in livestock tissues.
Journal: Rapid communications in mass spectrometry : RCM20020101
Title: Immunoaffinity column as sample cleanup method for determination of the beta-adrenergic agonist ractopamine and its metabolites.
Journal: Journal of AOAC International20020101
Title: Profile of ligand binding to the porcine beta2-adrenergic receptor.
Journal: Journal of animal science20010401
