Determination of Hormonal Growth Promotants in Beef Using Liquid Chromatography-Tandem Mass Spectrometry. [PDF]
Drug Test AnalAn LC–MS/MS method was developed and validated to detect 12 synthetic or endogenous hormonal growth promotants commonly utilized in the livestock industry in the United States at low pg/mg concentrations. ABSTRACT Hormonal growth promotants (HGPs) are a class of pharmaceutical agents commonly administered to cattle in the United States to improve ...
Mosburg M +7 more
europepmc +2 more sources
Synchronization of ovulation in crossbred dairy heifers using gonadotrophin-releasing hormone agonist, prostaglandin F2alpha and human chorionic gonadotrophin or estradiol benzoate. [PDF]
Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas, 2000 Girolando (Gir x Holstein) is a very common dairy breed in Brazil because it combines the rusticity of Gir (Bos indicus) with the high milk yield of Holstein (Bos taurus).
C. Castilho +5 more
semanticscholar +2 more sources
Estradiol benzoate treatment before ovum pick-up increases the number of good quality oocytes retrieved and improves the production of transferable embryos in Japanese Black cattle [PDF]
Veterinary and Animal Science, 2018 The aim of this study was to evaluate the efficacy of treatment with estradiol benzoate (EB) at luteal phase prior to the ovum pick-up (OPU) during in vitro production of transferable embryos in Japanese Black cattle.
Takemasa Hidaka +4 more
doaj +2 more sources
PERKEMBANGAN OOSIT INDUK Osteochilus hasselti C.V. YANG DIBERI HORMON ESTRADIOL-17β DAN PAKAN DENGAN KADAR PROTEIN BERBEDA [PDF]
Scripta Biologica, 2014 The availability of fish seed is very important in fish propagation. Good quality of fish seeds were produced by a good brooder which characterized a large number of egg production at spawning.
Andri Prajaka Santo +2 more
doaj +5 more sources
Effect of Estradiol Benzoate on the Pituitary‐Gonadal Axis in the Intact Male Rat
Andrologia, 2009 Erwachsene männliche Ratten wurden 28 Tage lang täglich mit 50 μg Oestradiolbenzoat subcutan behandelt. Die Gewichte der Sexualorgane und der Hypophyse zeigten die für eine Oestrogenzufuhr klassischen Veränderungen.
E. Steinberger +2 more
semanticscholar +2 more sources
Impact of Equine Chorionic Gonadotropin Associated with Temporary Weaning, Estradiol Benzoate, or Estradiol Cypionate on Timed Artificial Insemination in Primiparous Bos Indicus Cows [PDF]
Brazilian Archives of Biology and Technology, 2016 The study aimed to determine the impact of equine chorionic gonadotropin (eCG) associated with different timed artificial insemination (TAI) protocols on the pregnancy rate (PR) in Bos indicus cows previously treated with progesterone.
Andre Luis Bastos Souza +6 more
doaj +2 more sources
Effects of Estradiol Benzoate Injections on the Characteristics of Bovine Semen
Journal of Dairy Science, 1960 Summary Estradiol benzoate was injected into two normal bulls at levels ranging from 0.99 to 70 mg. per week. At levels up to and including 15 mg. per week, supplementary estrogen produced statistically insignificant increases in motility, per cent live spermatozoa, volume per ejaculate, spermatozoa concentration, and total spermatozoa per ejaculate.
P.T. Cupps, R.C. Laben, D.F. Rahlmann
openaire +3 more sources
Effects of timed artificial insemination following estrus synchronization in postpartum beef cattle [PDF]
Open Veterinary Journal, 2012 The objectives of this study were to evaluate estrus response and pregnancy rates resulting from timed artificial insemination (AI) following estrus synchronization using CIDR in postpartum beef cattle.
M. Sabri +4 more
doaj +3 more sources
Increasing estradiol benzoate, pretreatment with gonadotropin-releasing hormone, and impediments for successful estradiol-based fixed-time artificial insemination protocols in dairy cattle. [PDF]
Journal of Dairy Science, 2015 P. Monteiro +5 more
semanticscholar +2 more sources