نتایج جستجو برای: experimental farms

تعداد نتایج: 734529  

2010
Varinder Pal Singh V. K. Sharma

The cost and return analysis of different sizes of broiler farms in the Punjab state has been carried out based on the primary data collected from 140 broiler farmers for the period March 2008 to February 2009 in three districts, viz. Ludhiana, Hoshiarpur and Muktsar. The study has shown that the total fixed investments per bird have been highest on small farms, followed by medium and large far...

Journal: :Acta Veterinaria Scandinavica 2006
J Österberg I Vågsholm S Boqvist S Sternberg Lewerin

In 2003, a feed-borne outbreak of Salmonella Cubana occurred in Sweden as a result of contamination in a feed plant. Salmonella Cubana was detected in 49 out of 77 pig farms having received possibly contaminated feed. In this study, potential risk factors for farms being salmonella positive were examined, and a survival analysis was performed to investigate risk factors affecting the restrictio...

Journal: :Veterinaria italiana 2011
Elie K Barbour Hussein M Halawi Houssam A Shaib Lina S Jaber Steve Harakeh

This study was designed to examine the impact of competitive non-protective antigens in a bivalent killed vaccine of Newcastle disease virus and infectious bronchitis (IB) virus on seroconversions against protective fusion protein of Newcastle disease (ND) virus (NDV), in free-range layers primed by live ND-clone 30 and IB-H120 vaccines. The experimental design included two free-range layer far...

2017
Angela Bullanday Scott Mini Singh Jenny-Ann Toribio Marta Hernandez-Jover Belinda Barnes Kathryn Glass Barbara Moloney Amanda Lee Peter Groves

There are few published studies describing the unique management practices, farm design and housing characteristics of commercial meat chicken and layer farms in Australia. In particular, there has been a large expansion of free range poultry production in Australia in recent years, but limited information about this enterprise exists. This study aimed to describe features of Australian commerc...

2011
Michael H. H. Price Stan L. Proboszcz Rick D. Routledge Allen S. Gottesfeld Craig Orr John D. Reynolds

BACKGROUND Pathogens are growing threats to wildlife. The rapid growth of marine salmon farms over the past two decades has increased host abundance for pathogenic sea lice in coastal waters, and wild juvenile salmon swimming past farms are frequently infected with lice. Here we report the first investigation of the potential role of salmon farms in transmitting sea lice to juvenile sockeye sal...

Journal: :پژوهش های علوم دامی ایران 0
غلام رضا نوری حمید امانلو داوود زحمتکش احسان محجوبی

in order to study of effects of sodium bicarbonate on lameness occurrence and the performance of feedlot cattle, 100 holstein bull calves (251.75 ± 5.75) were used in a completely randomized design. calves were group fed a similar basal diet during 42 days experimental period. used treatments included 1) control treatment without feed additive, and 2) experimental diet that calves consumed 50 g...

Journal: :Acta veterinaria Scandinavica 2015
Tomas Kupčinskas Inga Stadalienė Mindaugas Šarkūnas Vita Riškevičienė Marian Várady Johan Höglund Saulius Petkevičius

BACKGROUND This study examines the prevalence of drug resistance in gastrointestinal nematodes to macrocyclic lactones (ML) and benzimidazoles (BZ) in Lithuanian sheep using sensitive and precise in vitro methods. The survey was conducted from August 2013 to November 2014. Thirty-three farms with sheep previously treated with BZ and ivermectin (IVM) were included in the study. On 12 farms where...

Journal: :Journal of dairy science 2013
S A Adler S K Jensen E Govasmark H Steinshamn

Bulk tank milk from 28 dairy farms was sampled every second month for 2 yr to assess the effects of grassland management, production system and season on milk fatty acid (FA) composition, concentrations of fat-soluble vitamins, Se, and milk sensory quality. Grassland management varied in terms of time since establishment. Short-term grassland management (SG) was defined as establishment or rese...

Journal: :Journal of economic entomology 2009
Stan Daberkow Penni Korb Fred Hoff

There have been major structural changes in the beekeeping industry over the past 25 yr. The U.S. Census of Agriculture surveys indicate that colony inventory declined > 20% between 1982 and 2002, whereas the number of U.S. farms with apiculture enterprises fell > 70%. This decline in farm numbers was not uniform across different sized farms based on colony inventory--nearly 30,000 of the farms...

2013
Marian E. H. Bos Femke J. Taverne Ingeborg M. van Geijlswijk Johan W. Mouton Dik J. Mevius Dick J. J. Heederik

In 2011, Dutch animal production sectors started recording veterinary antimicrobial consumption. These data are used by the Netherlands Veterinary Medicines Authority to create transparency in and define benchmark indicators for veterinary consumption of antimicrobials. This paper presents the results of sector wide consumption of antimicrobials, in the form of prescriptions or deliveries, for ...

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