Title: Analysis of trenbolone acetate metabolites and melengestrol in environmental matrices using gas chromatography-tandem mass spectrometry.
Journal: Talanta20120915
Title: Effect of growth promotants on the occurrence of endogenous and synthetic steroid hormones on feedlot soils and in runoff from beef cattle feeding operations.
Journal: Environmental science & technology20120207
Title: Reproductive response of ewes synchronized with different lengths of MGA treatments in intrauterine insemination program.
Journal: Animal reproduction science20110601
Title: Comparison of long-term progestin-based estrus synchronization protocols in beef heifers.
Journal: Journal of animal science20101101
Title: Roles of hCG in Advancing Follicular Growth to Ovulation after Concurrent Injections of PGF(2α) and GnRH in Postpubertal Holstein Heifers Bearing a CL.
Journal: Veterinary medicine international20100101
Title: Melengestrol acetate enhances adipogenic gene expression in cultured muscle-derived cells.
Journal: Journal of animal science20091201
Title: Naturally occurring and melengestrol acetate-associated reproductive tract lesions in zoo canids.
Journal: Veterinary pathology20091101
Title: Development of estrous synchronization protocols using melengestrol acetate in Bos indicus cattle.
Journal: Journal of animal science20090601
Title: Confirmatory method for the determination of various acetylgestagens in animal kidney fat using liquid chromatography-tandem mass spectrometry.
Journal: Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment20090501
Title: GnRH treatment at artificial insemination in beef cattle fails to increase plasma progesterone concentrations or pregnancy rates.
Journal: Theriogenology20090315
Title: The watershed as a conceptual framework for the study of environmental and human health.
Journal: Environmental health insights20090101
Title: Evaluation of short estrus synchronization methods in dairy cows.
Journal: Animal reproduction science20081201
Title: Management of chronic vaginal prolapse in an eastern bongo (Tragelaphus eurycerus isaaci).
Journal: Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians20081201
Title: Idiopathic infertility in two captive male gerenuk (Litocranius walleri walleri).
Journal: Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians20080901
Title: Effects of melengestrol acetate and P.G. 600 on fertility in Rambouillet ewes outside the natural breeding season.
Journal: Theriogenology20080715
Title: Melengestrol acetate as a tool for inducing early ovulation in transitional mares.
Journal: Acta veterinaria Hungarica20080301
Title: Utilization of soybeans or corn milling by-products in beef heifer development diets.
Journal: Journal of animal science20080201
Title: Effect of prebreeding body weight or progestin exposure before breeding on beef heifer performance through the second breeding season.
Journal: Journal of animal science20080201
Title: Evaluation of the efficacy and cost-effectiveness of melengestrol acetate in feedlot heifer calves in western Canada.
Journal: Veterinary therapeutics : research in applied veterinary medicine20080101
Title: Effect of melengestrol acetate as an alternative to induce molting in hens on the expression of yolk proteins and turnover of oviductal epithelium.
Journal: Animal reproduction science20071101
Title: Comparison of progestin-based protocols to synchronize estrus and ovulation before fixed-time artificial insemination in postpartum beef cows.
Journal: Journal of animal science20070801
Title: Comparison of controlled internal drug release device and melengesterol acetate as progestin sources in an estrous synchronization protocol for beef heifers.
Journal: Theriogenology20070715
Title: Effects of melengestrol acetate on the inflammatory response in heifers challenged with Mannheimia haemolytica.
Journal: Journal of animal science20070701
Title: Histologic features of mammary carcinomas in zoo felids treated with melengestrol acetate (MGA) contraceptives.
Journal: Veterinary pathology20070501
Title: Motivation of hens to obtain feed during a molt induced by feed withdrawal, wheat middlings, or melengestrol acetate.
Journal: Poultry science20070401
Title: Modification of mRNA expression after treatment with anabolic agents and the usefulness for gene expression-biomarkers.
Journal: Analytica chimica acta20070314
Title: Confirmatory analysis of acetylgestagens in plasma using liquid chromatography-tandem mass spectrometry.
Journal: Analytica chimica acta20070314
Title: Determination of gestagens in kidney fat by liquid chromatography tandem mass spectrometry.
Journal: Analytica chimica acta20070314
Title: Resynchronization of estrus in beef cattle: ovarian function, estrus and fertility following progestin treatment and treatments to synchronize ovarian follicular development and estrus.
Journal: The Canadian veterinary journal = La revue veterinaire canadienne20070101
Title: Melengestrol acetate alters muscle cell proliferation in heifers and steers.
Journal: Journal of animal science20061101
Title: The effects of cattle sex on carcass characteristics and longissimus muscle palatability.
Journal: Journal of animal science20060701
Title: Effect of dietary melengestrol acetate on the incidence of acute interstitial pneumonia in feedlot heifers.
Journal: Canadian journal of veterinary research = Revue canadienne de recherche veterinaire20060701
Title: Effects of growth-promoting agents and season on blood metabolites and body temperature in heifers.
Journal: Journal of animal science20060401
Title: Melengestrol acetate in experimental diets as an effective alternative to induce a decline in egg production and reversible regression of the reproductive tract in laying hens. I. Determining an effective concentration of melengestrol acetate.
Journal: Poultry science20051101
Title: Melengestrol acetate as an effective alternative to induce a decline in egg production and reversible regression of the reproductive tract in laying hens. II. Effects on postmolt egg quality.
Journal: Poultry science20051101
Title: Efficacy of either a single or split treatment of PGF2alpha after a 14 day melengestrol acetate treatment to synchronize estrus and induce luteolysis in Bos indicus x Bos taurus heifers.
Journal: Theriogenology20050715
Title: Contraception in the chimpanzee: 12-year experience at the CIRMF Primate Centre, Gabon.
Journal: Journal of medical primatology20050201
Title: Basis of melengestrol acetate action as a progestin.
Journal: Domestic animal endocrinology20050201
Title: A comparison of progestin-based protocols to synchronize ovulation and facilitate fixed-time artificial insemination in postpartum beef cows.
Journal: Journal of animal science20050101
Title: Methods to reduce or eliminate detection of estrus in a melengestrol acetate-PGF2alpha protocol for synchronization of estrus in beef heifers.
Journal: Journal of animal science20041001
Title: Effects of growth-promoting agents and season on yearling feedlot heifer performance.
Journal: Journal of animal science20040801
Title: Mobility of the growth promoters trenbolone and melengestrol acetate in agricultural soil: column studies.
Journal: The Science of the total environment20040629
Title: Fixed-time artificial insemination of postpartum beef cows at 72 or 80 h after treatment with the MGA Select protocol.
Journal: Theriogenology20040501
Title: A comparison of progestin-based protocols to synchronize estrus in postpartum beef cows.
Journal: Journal of animal science20040401
Title: Follicular dynamics and steroid profiles in cows during and after treatment with progestin-based protocols for synchronization of estrus.
Journal: Journal of animal science20040401
Title: Ability of intravaginal progesterone inserts and melengestrol acetate to induce estrous cycles in postpartum beef cows.
Journal: Journal of animal science20040301
Title: Synchronization of estrus in postpartum beef cows and virgin heifers using combinations of melengestrol acetate, GnRH, and PGF2alpha.
Journal: Journal of animal science20040301
Title: A dose-response study of melengestrol acetate on feedlot performance and carcass characteristics of beef steers.
Journal: Journal of animal science20031101
Title: Synchronization of Bos indicus x Bos taurus cows for timed artificial insemination using gonadotropin-releasing hormone plus prostaglandin F2alpha in combination with melengestrol acetate.
Journal: Journal of animal science20030401
Title: Supplemental norgestomet, progesterone, or melengestrol acetate increases pregnancy rates in suckled beef cows after timed inseminations.
Journal: Journal of animal science20030301
Title: Non-invasive screening for treatment of heifers with the anabolic steroid melengestrol acetate (MGA) by feces analysis.
Journal: Journal of immunoassay & immunochemistry20030101
Title: Evaluation of a fixed-time artificial insemination protocol for postpartum suckled beef cows.
Journal: Journal of animal science20021201
Title: Quantitative assessment of foetal exposure to trenbolone acetate, zeranol and melengestrol acetate, following maternal dosing in rabbits.
Journal: Xenobiotica; the fate of foreign compounds in biological systems20020801
Title: Endometrial hyperplasia and mineralization in zoo felids treated with melengestrol acetate contraceptives.
Journal: Veterinary pathology20020701
Title: The use of a progesterone-releasing device (CIDR-B) or melengestrol acetate with GnRH, LH, or estradiol benzoate for fixed-time AI in beef heifers.
Journal: Journal of animal science20020701
Title: Effect of an orally active progestin on follicular dynamics in cycling and anestrous postpartum beef cows.
Journal: Journal of animal science20020701
Title: Effect of zeranol or melengestrol acetate (MGA) on testicular and antler development and aggression in farmed fallow bucks.
Journal: Journal of animal science20020601
Title: Determination of acetyl gestagenic steroids in kidney fat by automated supercritical fluid extraction and liquid chromatography ion-trap mass spectrometry.
Journal: The Analyst20020601
Title: Genital tract smooth muscle tumors are common in zoo felids but are not associated with melengestrol acetate contraceptive treatment.
Journal: Veterinary pathology20020501
Title: Melengestrol acetate blocks the preovulatory surge of luteinizing hormone, the expression of behavioral estrus, and ovulation in beef heifers.
Journal: Journal of animal science20020501
Title: Effects of melengestrol acetate on reproductive behavior and concentrations of LH and testosterone in bulls.
Journal: Journal of animal science20020401
Title: Synchronization of estrus in beef heifers using either melengesterol acetate (MGA)/prostaglandin or MGA/Select Synch.
Journal: Theriogenology20020315
Title: Effects of synthetic progestagens on the mRNA expression of androgen receptor, progesterone receptor, oestrogen receptor alpha and beta, insulin-like growth factor-1 (IGF-1) and IGF-1 receptor in heifer tissues.
Journal: Journal of veterinary medicine. A, Physiology, pathology, clinical medicine20020301
Title: The use of progestins in regimens for fixed-time artificial insemination in beef cattle.
Journal: Theriogenology20020201
Title: Synchronization of estrus in virgin beef heifers using melengestrol acetate and PGF2alpha: an efficacy comparison of cloprostenol and dinoprost tromethamine.
Journal: Theriogenology20020115
Title: Evaluation of certain veterinary drug residues in food.
Journal: World Health Organization technical report series20020101
Title: Restoration of reproductive potential following expiration or removal of melengestrol acetate contraceptive implants in golden lion tamarins (Leontopithecus rosalia).
Journal: Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians20011201
Title: The fate of trenbolone acetate and melengestrol acetate after application as growth promoters in cattle: environmental studies.
Journal: Environmental health perspectives20011101
Title: The use of GnRH or estradiol to facilitate fixed-time insemination in an MGA-based synchronization regimen in beef cattle.
Journal: Animal reproduction science20010915
Title: Attenuation of premature estrous behavior in postpartum beef cows synchronized to estrus using GnRH and PGF2alpha.
Journal: Theriogenology20010801
Title: Improved synchrony of estrus and ovulation with the addition of GnRH to a melengestrol acetate-prostaglandin F2alpha synchronization treatment in beef heifers.
Journal: Journal of animal science20010801
Title: Breeding ewes out-of-season using melengestrol acetate, one injection of progesterone, or a controlled internal drug releasing device.
Journal: Theriogenology20010701
Title: Pyometra and uterine adenocarcinoma in a melengestrol acetate-implanted captive coati (Nasua nasua).
Journal: Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians20010601
Title: Assessment of oestrogenic potency of chemicals used as growth promoter by in-vitro methods.
Journal: Human reproduction (Oxford, England)20010501
Title: A sensitive enzyme immunoassay (EIA) for the determination of melengestrol acetate (MGA) in adipose and muscle tissues.
Journal: Food additives and contaminants20010401
Title: Effects of immunization against GnRH, melengestrol acetate, and a trenbolene acetate/estradiol implant on growth and carcass characteristics of beef heifers.
Journal: Theriogenology20010301
Title: Genotoxic potential of xenobiotic growth promoters and their metabolites.
Journal: APMIS : acta pathologica, microbiologica, et immunologica Scandinavica20010201
Title: Biochemistry and physiology of anabolic hormones used for improvement of meat production.
Journal: APMIS : acta pathologica, microbiologica, et immunologica Scandinavica20010101
