نتایج جستجو برای: experimental farms

تعداد نتایج: 734529  

2017
Sharmin Chowdhury Shama ranjan Barua

| A survey was conducted to characterize calf management and hygiene practices adopted by dairy farmers at Chittagong, in Bangladesh. A total of 210 dairy farms located in 3 geographically distinct regions in Chittagong division, namely coastal, hilly and plain area, were surveyed. Calf management and hygiene practice related data was collected through a standard questionnaire and all sampled f...

2013
Lori Beaman Dean Karlan Bram Thuysbaert Christopher Udry

Intensified use of agricultural inputs, particularly fertilizer, is a possible route to improved agricultural productivity. Field trials of these technologies show substantial increases in yields, but typically are done on highly monitored experimental plots rather than by farmers themselves. Returns to a certain technology might be quite different on real-world farms than on experimental farms...

2018
Enrico Giacomini Sara Gasparrini Massimiliano Lazzaro Federico Scali Maria Beatrice Boniotti Attilio Corradi Paolo Pasquali Giovanni Loris Alborali

BACKGROUND Direct and indirect contact among animals and holdings are important in the spread of Brachyspira hyodysenteriae. The objective of this study was to investigate the role of slaughterhouse vehicles in spreading B. hyodysenteriae between unconnected farms. RESULTS Multilocus sequence typing (MLST) and Multiple Locus Variable number tandem repeat Analysis (MLVA) were used to character...

Journal: :Chest 1993
P Malmberg A Rask-Andersen L Rosenhall

STUDY OBJECTIVE To compare exposure to microorganisms associated with allergic alveolitis (AA) and with febrile reactions to inhaled mold dust (organic dust toxic syndrome [ODTS]) in farmers and in normal subjects. DESIGN A prospective study in which exposure was evaluated within two weeks of medical consultation for AA or ODTS. Samples were collected during normal farming (background) and du...

2018
Dinh Bao Truong Flavie Luce Goutard Stéphane Bertagnoli Alexis Delabouglise Vladimir Grosbois Marisa Peyre

This study aimed to analyze the financial impact of foot-and-mouth disease (FMD) outbreaks in cattle at the farm-level and the benefit-cost ratio (BCR) of biannual vaccination strategy to prevent and eradicate FMD for cattle in South Vietnam. Production data were collected from 49 small-scale dairy farms, 15 large-scale dairy farms, and 249 beef farms of Long An and Tay Ninh province using a qu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1399

this study aimed to investigate the effects of listening strategy training on iranian efl learners listening comprehension and use of such strategies. this work, employing an experimental methodology, was conducted among 60 adult efl learners from a language institute in isfahan, iran, as participants. the participants, who were selected based on the results of a placement test, were assigned t...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - دانشکده علوم انسانی 1391

abstract the following study, in the first place, attempted to examine the effect of less experienced teachers participation in experienced teachers classes on their own skills and teaching methodology, in the second place, attempted to find out the role of teachers training in students achievements. for this purpose, 21 efl teachers were selected according to available sampling in kish l...

2017
Julie Melsted Birch Jens Frederik Agger Christina Dahlin Vibeke Frøkjær Jensen Anne Sofie Hammer Tina Struve Henrik Elvang Jensen

BACKGROUND Pre-weaning diarrhea in mink, also known as "sticky kits", is a syndrome and outbreaks occur every year on commercial mink farms in all mink producing countries. Morbidity and mortality can be considerable on a farm with huge economic consequences for the farmer as well as compromised welfare for the mink kits. Although efforts have been taken to identify etiologic agents involved in...

Journal: :Veterinary research 2008
Johanne Ellis-Iversen Richard P Smith Steven Van Winden Giles A Paiba Eamon Watson Lucy C Snow Alasdair J C Cook

A randomised controlled trial was used to investigate the effect of three complex management intervention packages to reduce the burden of E. coli O157 in groups of young-stock on cattle farms in England and Wales. All intervention farms were assigned measures to avoid buying in new animals and having direct contact or sharing water sources with other cattle. Furthermore, package A (7 farms) ai...

Journal: :Geospatial health 2007
Giuseppe Cringoli Laura Rinaldi Vincenzo Musella Vincenzo Veneziano Maria Paola Maurelli Francesco Di Pietro Michele Frisiello Salvatore Di Pietro

Cystic echinococcosis (CE), caused by the larval stages of the tapeworm Echinococcus granulosus, is known to be one of the most important parasitic infection in livestock worldwide and one of the most widespread zoonoses known. In the present study, we used a geographical information system (GIS) to study the spatial structure of livestock (cattle, water buffaloes and sheep) populations to gain...

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