نتایج جستجو برای: oral recombinant bovine somatotropin

تعداد نتایج: 431340  

Journal: :Journal of animal science 2008
H A Johnson J A Maas C C Calvert R L Baldwin

Use of a systems approach, as embodied in the computer simulation model of metabolism of a dairy cow, Molly (Baldwin, 2005), is ideal for teaching nutrition. This approach allows the overall complexity of the comprehensive system to be broken down into smaller manageable subunits that are easier to visualize. Quantitative interactions among nutrients supplied and metabolic production processes ...

Journal: :Theriogenology 2011
R C Rossetti A Perdigão F S Mesquita M Sá Filho G P Nogueira R Machado C M B Membrive M Binelli

The objective was to compare pharmacological strategies aiming to inhibit prostaglandin F2 alpha (PGF(2α)) synthesis (flunixin meglumine; FM), stimulate growth of the conceptus (recombinant bovine somatotropin; bST) and progesterone (P(4)) synthesis (human chorionic gonadotropin; hCG), as well as their combinations, regarding their ability to improve pregnancy rates in beef cattle. Lactating Ne...

Journal: :Journal of animal science 2016
V R G Mercadante P L P Fontes F M Ciriaco D D Henry P Moriel A D Ealy S E Johnson N DiLorenzo G C Lamb

The effects of administration of recombinant bovine ST (bST) on plasma hormone concentrations of cows, conceptus development, and postnatal calf performance were examined. Lactating beef cows ( = 190) were exposed to a fixed-time AI (TAI) protocol from d -10 to 0 (TAI on d 0). Cows were blocked by breed and stratified by days postpartum and then randomly assigned to receive, subcutaneously 1) 2...

Journal: :Journal of animal science 2001
R C Vann T G Althen M B Solomon J S Eastridge E W Paroczay J J Veenhuizen

The objective of this study was to determine the effect of recombinant bovine somatotropin (rbST) on muscle fiber histology and histochemistry in creep-fed beef steers. Crossbred steer calves were assigned to one of two treatment groups: control (sham-injected; n = 12) or rbST-injected (0.09 mg x kg(-1) x d(-1); n = 12). Calves were injected every 14 d starting at d 28 of age until weaning at 2...

2015
Nathalie G. E. Smits Marco H. Blokland Klaas L. Wubs Merel A. Nessen Leen A. van Ginkel Michel W. F. Nielen

The use of recombinant bovine somatotropin (rbST) to enhance milk production is approved in several countries, but it is prohibited in the European Union. According to EU legislation, it is necessary to confirm positive screening results prior to enforcement. Although adequate screening assays are available nowadays, development of liquid chromatography tandem mass spectrometry (LC-MS/MS) confi...

Journal: :Clinical and diagnostic laboratory immunology 1999
Y Abed G St-Laurent H Zhang R M Jacobs D Archambault

A 120-amino-acid polypeptide selected from the transmembrane protein region (tTM) and the major capsid protein p26 of bovine immunodeficiency-like virus (BIV) were expressed as fusion proteins from recombinant baculoviruses. The antigenic reactivity of both recombinant fusion proteins was confirmed by Western blot with bovine and rabbit antisera to BIV. BIV-negative bovine sera and animal sera ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید