نتایج جستجو برای: dairy farms

تعداد نتایج: 64468  

2014
Jamal Gharekhani Hamidreza Haddadzadeh Alireza Bahonar

Bovine neosporosis caused by the apicomplexan protozoan parasite N. caninum, was initially recognized in 1989 and is now reported as a leading infectious cause of reproductive failure in dairy cattle in world wide. The aim of this study was to determine the seroprevalence of N. caninum infection in industrial dairy cattle of Hamedan province (west of Iran) by ELISA method. Blood samples were co...

Journal: :Epidemiology and infection 2010
D H Grove-White A J H Leatherbarrow P J Cripps P J Diggle N P French

In a 2-year longitudinal study of adult animals on 15 dairy farms and four sheep farms in Lancashire, UK. C. jejuni was isolated from all farms, although not on every occasion. Faecal samples were collected and cultured using standard techniques for isolation of Campylobacter. Assignment to species was via PCR assays. Peak prevalence of C. jejuni in both cattle and sheep was observed during the...

Journal: :Journal of dairy science 2012
D Läpple T Hennessy M O'Donovan

Profitability and factors affecting grazing season length were econometrically analyzed using a representative sample of Irish dairy farms. The objective of this study was to explore what potential exists on Irish dairy farms to extend the grazing season and to quantify the possible economic benefits that result from lengthening the grazing season. Regression results indicate that location fact...

Journal: :Preventive veterinary medicine 2015
C Krug M J Haskell T Nunes G Stilwell

The objective of this study was to determine whether dairy farms with poor cow welfare could be identified using a national database for bovine identification and registration that monitors cattle deaths and movements. The welfare of dairy cattle was assessed using the Welfare Quality(®) protocol (WQ) on 24 Portuguese dairy farms and on 1930 animals. Five farms were classified as having poor we...

2017
Tanushree B Gupta Gale Brightwell

The aim of our study was to determine the occurrence and diversity of economically important spore-forming bacteria in New Zealand dairy farm systems. Farm dairy effluent (FDE) collected from Waikato dairy farms were tested for the presence of spore-forming bacteria, using a new culture-based methodology followed by genomic analysis. An enrichment step in which samples were inoculated in cooked...

2015
Sandra Bertulat Carola Fischer-Tenhagen Wolfgang Heuwieser

While dry cow management is important for health, milk production and fertility information on drying-off procedures implemented on commercial dairy farms is lacking. Current drying-off management procedures on commercial dairy farms were evaluated using a questionnaire and results compared with recommendations given in the current literature. Ninety-one participants from a farmer education eve...

2014
Jindřich Špička Luboš Smutka

The aim of the article is to evaluate production efficiency and its determinants of specialised dairy farming among the EU regions. In the most of European regions, there is a relatively high significance of small specialised farms including dairy farms. The DEAVRS method (data envelopment analysis with variable returns to scale) reveals efficient and inefficient regions including the scale eff...

Journal: :American journal of industrial medicine 1992
D S Pratt L H Marvel D Darrow L Stallones J J May P Jenkins

In order to better understand the work-related injuries sustained on central New York dairy farms, we undertook a two-year population-based study of 600 farmers and farm workers on 201 dairy farms. During the observation period, 1984-1986, 151 persons had 200 injuries, giving an injury rate of 16.6%/year (166 injuries/1,000 workers/year). Men were injured more often than women (p less than or e...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2005
D Fraters L J M Boumans T C van Leeuwen W D de Hoop

The effect of policy measures on agriculture and water quality with respect to nitrogen have been monitored on farms in the sandy regions since the early 1990s. Nitrogen surplus on dairy farms decreased by 100 kg/ha (30%) in the 1991-1999 period due to demonstration projects and the implementation of MINAS, limiting farm gate balance surplus. Nitrogen surplus on arable farms has slightly decrea...

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