نتایج جستجو برای: rainfed farms

تعداد نتایج: 25639  

Ahmed M. Abdel Rahman Mohamed E. Hamid

Climate change represents the major challenge to Sudan agricultural production, economics and food security. Changes in temperature, rainfalls, water availability, increased outbreak of pest and diseases, land degradation, soil erosion, shrinking of grazing and cultivate areas, ongoing desertification and the other aspects of climate change have direct significant impact on agricultural product...

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 New Zealand grasslands 2023

Yield differences between resident and improved pastures were quantified over a 3-4 yr period on three rainfed farms located in North Canterbury (Stockgrove, north of Amberley), Banks Peninsula (Willesden Farm) the Mid-Canterbury foothills (Inverary Station). Improved produced two- to three-times more feed annually than unimproved at each property. At Stockgrove, chicory/white clover-based 14.1...

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 ...

Journal: :زراعت دیم ایران 0

in order to study physiological characteristics of rainfed bread wheat genotypes, an experiment was conducted with 20 genotypes in a randomized complete block design with 4 replications under rainfed and supplementary irrigation conditions. this experiment was carried out at the dryland agricultural research institute (dari) in maragheh during 2007-2008. to determine growth indices, sampling wa...

Journal: :Applied and environmental microbiology 2016
Anna Duse Karin Persson Waller Ulf Emanuelson Helle Ericsson Unnerstad Ylva Persson Björn Bengtsson

UNLABELLED Quinolone-resistant Escherichia coli (QREC) is common in feces from young calves, but the prevalence and genetic diversity of QREC in groups of cattle of other ages and the farm environment are unknown. The aims of the study were to obtain knowledge about the occurrence of QREC on dairy farms, the genetic diversity of QREC within and between farms, and how these relate to the number ...

2013
Francesco ZENDRI Enrico STURARO Maurizio RAMANZIN

In the Alps, summer farms are temporary units where the livestock herds are moved during summer to graze on highland pastures. Th is study aimed to analyze the role of summer farms in the dairy farming systems of the Trento province, in the eastern Italian Alps. Data on the structures and management of the 395 active summer farms were collected from the veterinarian services of the province: 34...

2013
Locke Karriker Locke A. Karriker

1 Summary and Implications Despite a significant body of research, interventions for PRRSV infection remain elusive. Traditional approaches to managing the risk of diseases have not been successful in many cases of PRRSV infection. While elimination of the virus from farms is possible, it is not without cost and re-infection is common. This survey sought to quantify the expected duration of PRR...

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