نتایج جستجو برای: farms

تعداد نتایج: 23010  

2010
Aneesh Thakur Mandeep Sharma Vipin C. Katoch Prasenjit Dhar R. C. Katoch

A study was conducted on 440 dairy cattle in six organized dairy farms in the state of Himachal Pradesh, India using tuberculin skin testing (TST) to determine the prevalence of bovine tuberculosis. An overall animal prevalence of 14.31% (63 of 440 animals) and a farm prevalence of 16.67% (1 of 6 farms) were recorded in 6 dairy farms by the TST. Of the six dairy farms studied, one of the farms ...

Journal: :Perform. Eval. 2007
Varun Gupta Mor Harchol-Balter Karl Sigman Ward Whitt

Join the Shortest Queue (JSQ) is a popular routing policy for server farms. However, until now all analysis of JSQ has been limited to First-Come-First-Serve (FCFS) server farms, whereas it is known that web server farms are better modeled as Processor Sharing (PS) server farms. We provide the first approximate analysis of JSQ in the PS server farm model for general job size distributions, obta...

2013
K. M. Earfan Ali Mohammad Danesh

The paper presents a metafrontier production function model for farm’s different groups having different technologies. The metafrontier model enables the computation of comparable technical efficiencies for farms operating under different technologies. The model also enables the technology gaps to be estimated for wheat farms under different technologies relative to the potential technology ava...

Journal: :Australian veterinary journal 2014
M Lyndal-Murphy W K Ehrlich D G Mayer

OBJECTIVE To establish the prevalence of anthelmintic resistance in ovine gastrointestinal nematodes in southern Queensland. DESIGN An observational parasitological study using the faecal egg count reduction test. METHODS Sheep farms (n = 20) enrolled in this study met the twin criteria of using worm testing for drench decisions and having concerns about anthelmintic efficacy. On each farm,...

Journal: :Journal of dairy science 2015
R F Rowbotham P L Ruegg

The objective of this study was to identify associations of bedding type and selected management practices with bulk milk quality and productivity of larger Wisconsin dairy farms. Dairy herds (n=325) producing ≥11,340 kg of milk daily were surveyed during a single farm visit. Monthly bulk milk SCC and total bacteria counts were obtained from milk buyers for 255 farms for a 2-yr period. Of farms...

2015
Alejandro Dorado-García Haitske Graveland Marian E. H. Bos Koen M. Verstappen Brigitte A. G. L. Van Cleef Jan A. J. W. Kluytmans Jaap A. Wagenaar Dick J. J. Heederik Tara C Smith

With the ultimate aim of containing the emergence of resistant bacteria, a Dutch policy was set in place in 2010 promoting a reduction of antimicrobial use (AMU) in food-producing animals. In this context, a study evaluated strategies to curb livestock-associated methicillin resistant Staphylococcus aureus (LA-MRSA). Fifty-one veal calf farms were assigned to one of 3 study arms: RAB farms redu...

2006
Nils Siebert George Kariniotakis

Short-term wind power forecasting is recognized today as a major requirement for a secure and economic integration of wind generation in power systems. This paper deals with the case of regional forecasting of wind power with a large number of wind farms involved. Due to the large amount of potentially available information and also because part of the wind farms may not be "observable", foreca...

2017
Richard Laven

Recent data from many countries suggests that this decline in fertility may have slowed for example, the Scandinavian countries have now shown that selection for fertility can result in improvements without major effects on milk yield. However, irrespective of general trends in fertility, there are still large differences between farms, which means that on most farms fertility could be improved...

2017
Matthew Elliott

We empirically test separation of ownership and control (SOC) and the interaction of SOC with farmer effort on farm success using data from the U.S. Department of Agriculture’s Agricultural Resource Management Survey. We use a two-stage leastsquares approach with instrumental variables that proxy for participation constraints in binding incentive contracts. We find that the interaction has a si...

Journal: :تحقیقات دامپزشکی 0
مسعود محرابی دانش آموخته، دانشکده دامپزشکی دانشگاه ارومیه، ارومیه–ایران محمد یخچالی گروه پاتوبیولوژی، دانشکده دامپزشکی دانشگاه ارومیه، ارومیه–ایران

background: coccidian infection in poultry is the most common infection in the world and is the cause of mortality and great economic losses in poultry production. objectives: this study was aimed to determine the frequency and eimeria species diversity in broiler farms of hamadan suburb, iran. methods: a total of 16 broiler farms were randomly selected with different production age in 2012. th...

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