نتایج جستجو برای: 1577 months for average calf production interval

تعداد نتایج: 10725233  

2014
Armin RW Elbers Norbert Stockhofe-Zurwieden Wim HM van der Poel

BACKGROUND Schmallenberg virus (SBV) has swept through the major part of Europe in the period 2011-2013. A vaccine against SBV has been developed and may be a possible preventive instrument against infection. Presently, there is no data available to refute the assumption that natural SBV infection results in long-term immunity. In that respect, it is of interest to know how long (protecting) vi...

Journal: :Journal of Dairy Science 2021

Our aim was to investigate the associations between management factors, compliance with current legislation, and herd-level calf mortality. In a national welfare audit, veterinary inspectors from Norwegian Food Safety Authority assessed legislation on (n = 912 herds). Nine criteria were rated as satisfactory (1) or not (0): housing, natural behavior, single pens, colostrum feeding, water, surve...

Journal: :British journal of sports medicine 2006
J A Radford J Burns R Buchbinder K B Landorf C Cook

BACKGROUND Many lower limb disorders are related to calf muscle tightness and reduced dorsiflexion of the ankle. To treat such disorders, stretches of the calf muscles are commonly prescribed to increase available dorsiflexion of the ankle joint. HYPOTHESIS To determine the effect of static calf muscle stretching on ankle joint dorsiflexion range of motion. STUDY DESIGN A systematic review ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده علوم پایه 1389

nowadays, the development of anti cancer drugs is an important subject in pharmacology. bisphosphonates (b.p) are a great choice for design and production of the types of drugs which not only could perform as anti cancer agents but also could inhibit the function of acetyl cholinesterase (ache). ache hydrolyzes the acetylcholine (which is a neurotransmitter in nervous system) using the oh in i...

2011
John Arthington

These results support the earlier findings by Dr. Bill Kunkle and his research involving limitcreep supplements based on cottonseed meal and salt mixtures. Calf performance responses, as measured by the added gain realized by creep supplementation, are highly variable and cannot always be described by amounts of creep feed consumed. This variability has large and direct impacts on the cost effe...

Journal: :Journal of animal science 1998
H C Freetly L V Cundiff

We evaluated heifers crossbred from seven breeds of sires (Hereford, Angus, Belgian Blue, Piedmontese, Brahman, Boran, and Tuli) and three breeds of dams (Angus, Hereford, and MARC III [four-breed composite]). Heifers were mated to Red Poll sires to calve at 2 yr of age. Heifers were placed in two treatments from weaning to breeding and raised on a high nutrition level (15.8 Mcal ME/d) or on 80...

2009
D. Řehák R. Rajmon M. Kubešová M. Štípková J. Volek F. Jílek

The objective of this study was to determine how the concentration of milk urea (MU) and FPCM production affect reproduction in selected Holstein dairy herds in the Czech Republic. A retrospective, observational study comprising analyses of individual cow records from monthly dairy herd improvement (DHI) milk tests including milk urea (MU) concentration was conducted in six commercial Holstein ...

Journal: :iranian journal of veterinary research 2013
b. nikahval m. s. ahrari khafi

persistent patent urachus with other accompanying anomalies like urethral obstruction and uroperitoniumquickly deteriorates animal conditions which necessitate prompt surgical intervention and animal salvage. a10-day-old calf was referred to clinic with mildly distended abdomen, history of umbilical dribbling and nosigns of normal urination since birth. on clinical laboratory results and ancill...

Introduction:We evaluated the performance of muscle perfusion scan (MPS) to assess muscle perfusion reserve (MPR) for prediction of incident diabetic foot ulcerations (DFU). Methods: We recruited 41 diabetic patients without any history of DFU. Five mCi 99mTc-MIBI was injected intravenously during repetitive dorsal and plantar right foot flexions. T...

اسلمی نژاد, علی اصغر, رکوعی, محمد, شریعتی, محمدمهدی, طهمورث پور, مجتبی, فرجی آروق, هادی,

The effects of herd size, semen type, generation overlapping and breeding goal on genetic gain in Holstein cows were studied through stochastic simulation. Three levels of herd size (100, 200, and 400), two levels of semen type (unsexed and sexed), three levels of generation overlapping (low, average and high) and two levels of breeding goal (narrow and broad) were combined together to make 36 ...

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