egg collecting Articles

  • Perfluorinated compound concentrations in great blue herons eggs near St. Paul, Minnesota, USA in 1993 and 2010–2011

    A great blue heron (Ardea herodias) colony on Pig's Eye Island on the Mississippi River near St. Paul, Minnesota, USA, is located near several potential perfluorinated compound (PFC) sources. The PFC concentrations in great blue heron eggs reported from a 1993 collection from the Pig's Eye colony were among the highest measured in bird eggs worldwide. The objective of this investigation was to ...


    By John Wiley & Sons, Ltd.

  • Halogenated flame retardants during egg formation and chicken embryo development: Maternal transfer, possible biotransformation, and tissue distribution

    Hen muscle, eggs, and newborn chick tissues (muscle and liver) were collected from an electronic waste recycling site in southern China. The authors examined the maternal transfer, potential metabolism, and tissue distribution of several halogenated flame retardants (HFRs) during egg formation and chicken embryo development. The pollutant composition changes significantly from hen muscle to ...


    By John Wiley & Sons, Ltd.

  • Pesticide and Pathogen Contamination of Vegetables in Ghana’s Urban Markets

    Abstract  The objective of the study was to determine and compare the current level of exposure of the Ghanaian urban population to hazardous pesticide and fecal coliform contamination through the consumption of fresh vegetables produced in intensive urban and periurban smallholder agriculture with informal wastewater irrigation. A total of 180 vegetable samples (lettuce, cabbage, and ...


    By Springer

  • Microbiological quality of urban-vended salad and its association with gastrointestinal diseases in Kumasi, Ghana

    The influence of consumption of salads on exposure to gastrointestinal diseases was assessed in urban environments in Kumasi, Ghana. Data was collected using a cross–sectional survey involving 15 salad sellers and 213 consumers and microbiological laboratory analysis of 96 samples of ready–to–eat salad. Findings showed higher contamination in street–vended salads than those in cafeterias with ...


    By Inderscience Publishers

  • Validation of a standard field test method in four countries to assess the toxicity of residues in dung of cattle treated with veterinary medical products

    Registration of veterinary medical products (VMPs) includes the provision that field tests may be required to assess potential non‐target effects associated with the excretion of product residues in dung of treated livestock (Phase II, Tier B testing). However, regulatory agencies provide no guidance on the format of these tests. Here, we report development of a standardized field test method ...


    By John Wiley & Sons, Ltd.

  • Developmental impairment in Eurasian dipper nestlings exposed to urban stream pollutants

    Avian studies of endocrine disruption have focussed traditionally on reproductive impairment given that many environmental contaminants affect sex steroid hormones. There is also increasing interest in altered thyroid function, and associated early development, particularly in altricial species with extended developmental windows. Both types of effect are relevant under the complex pollutant ...


    By John Wiley & Sons, Ltd.

  • Achieving Pathogen Stabilization Using Vermicomposting

    Within the last decade, implementation of state and federal regulations and other local codes have changed biosolids processing in Florida. Previously, biosolids stabilization varied greatly among the state’s 3,500 to 4,000 wastewater treatment facilities. Public and privately owned wastewater treatment facilities were required to stabilize their biosolids to a minimum Class C standard for land ...


    By BioCycle Magazine

  • Dutch Farmers Find It Pays To Manage Poultry Manure

    Poultry farmers in Holland face challenges similar to their North American counterparts in dealing with manure from concentrated operations where there is insufficient cropland for application. This creates a need for exporting manure from the producing farm to users in other places. Poultry operations in Holland differ from most North American poultry farms in that most are not vertically ...


    By BioCycle Magazine

  • The localization of agriculture

    In the United States, there has been a surge of interest in eating fresh local foods, corresponding with mounting concerns about the climate effects of consuming food from distant places and about the obesity and other health problems associated with junk food diets. This is reflected in the rise in urban gardening, school gardening, and farmers’ markets. With the fast-growing local foods ...


    By Earth Policy Institute

  • Let the kids go wild outdoors

    A number of international studies have shown that children in developed nations spend an average of 55 hours a week indoors using electronics. Even though this means that the youth in these countries are techno-savvy, it often results in them spending less and less time outdoors. How do we change this, and get our kids to experience the wonders of nature, develop creativity and learn to ...


    By green24

  • Can bats reduce nut farmers’ pesticide use?

    Ecologist Katherine Ingram is on a quest to quantify the economic value of insect-eating bats in walnut groves. For the past three years, Katherine Ingram has had a most unusual summer job: catching bats and studying their droppings to see what they eat. A doctoral student in ecology at the University of California, Davis, Ingram is exploring the role bats can play as winged ...


    By Ensia

  • Ohio Takes Aim At Food Waste Composting

    WHILE RECYCLING of paper and yard trimmings have grown rapidly in Ohio in the last 30 years - now up to 50 percent for paper and 62 percent for green materials, the recovery rate for food residuals is at less than three percent of nearly 96 million tons generated annually. To turn things around, the Ohio EPA and its Solid Waste Management Division have teamed up to get the word out about ...


    By BioCycle Magazine

  • Global Grain Stocks Drop Dangerously Low as 2012 Consumption Exceeded Production

    The world produced 2,241 million tons of grain in 2012, down 75 million tons or 3 percent from the 2011 record harvest. The drop was largely because of droughts that devastated several major crops—namely corn in the United States (the world’s largest crop) and wheat in Russia, Kazakhstan, Ukraine, and Australia. Each of these countries also is an important exporter. Global grain ...


    By Earth Policy Institute

  • What’s Happening to the Birds?

    Following in Rachel Carson’s footsteps, a new generation of scientists investigates a new generation of pesticides. Christy Morrissey is driving her white pickup truck along Canada’s endless prairie highway, windows open, listening for birds. She points to the scatter of ponds glinting in the landscape, nestled among fields of canola that stretch as far as the eye ...


    By Ensia

  • Cost-Benefit Analyses: Exploring the Economics of On-Farm Composting

    When exploring the merits of on-farm composting, the question most often raised is: What are the economics? How do the savings or revenues from on-farm composting compare to the costs? Of course, the answer is the ever present “it depends.” Expenses, resources, revenue opportunities, environmental constraints and circumstances vary greatly from one farm to the next. Most people would agree that ...


    By BioCycle Magazine

  • Industrial Biotechnology: Coordinated Framework Make-Over and Lots More

    The summer of 2015 was surprisingly busy in the industrial biotechnology policy and regulatory arenas with three important announcements generating lots of buzz. On July 2, 2015, theWhite House Office of Science and Technology Policy (OSTP), the Office of Management and Budget (OMB), the US Trade Representative, and the Council on Environmental Quality issued a memorandum directing the US ...


    By Bergeson & Campbell, P.C.

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