barn ventilation Articles

  • Effects of reducing dietary nitrogen on ammonia emissions from manure on the floor of a naturally ventilated free stall dairy barn at low (0–20°C) temperatures

    Received for publication December 30, 2008. This study was conducted to determine the potential for reducing ammonia (NH3) emissions from manure deposited on the floor of a naturally ventilated free stall barn by mid-lactation dairy cows fed reduced or normal N diets. Two crude protein (CP) diets (178 g kg–1 [high] and 159 g kg–1 [low] dry matter ), were used. The diets were fed to 48 Holstein ...

  • Common Sheep Diseases

    Sometimes, no matter what special precautions and preventative measures we take, we get sick. The food we eat, the lack of quality sleep we get, even the emotional stress we carry around with us—it all adds up. It’s just a fact of life: Sometimes, we get sick. And it’s no different for our animals, including a farmer’s sheep. But as many of your sheep that do get ...


    By Lakeland Group

  • Methane and carbon dioxide emission from two pig finishing barns

    Received for publication July 22, 2007. Agricultural activities are an important source of greenhouse gases. However, comprehensive, long-term, and high-quality measurement data of these gases are lacking. This article presents a field study of CH4 and CO2 emission from two 1100-head mechanically ventilated pig (Sus scrofa) finishing barns (B1 and B2) with shallow manure flushing systems and ...

  • Barnes foundation art gallery Philadelphia, PA - Case Study

    Key Parameters Type of Facility – New Construction Function – Art Gallery / Museum Area – three stories, 93,000 sq ft Project Cost: $150M Project Completed – May, 2012 LEED Platinum Certification Challenge: IAQ, climate control, sustainable design. Environmental conditions ...

  • Huxley hutterite brethren colony case study

    A. Farm Description Barn Type: 80 stall free stall barn with saw dust on floor. Manure Handling: Barn houses 80 cows over 8 pits, each 7 feet deep and 12 feet wide. Manure is stored under the slatted floor for 6 months and then agitated and pumped out. B. The Problems: As the pits are pumped ammonia levels rise significantly resulting in problems for barn staff ...


    By Nordevco Associates Ltd.

  • Case study - When my staff is happy, I am happy too!

    Emmanuel Destrijker from Plessisville, Quebec in Canada, is confident that he made the right choice when bying a DACS ventilation system for his second house for layers. - After two years in production, I am confident that I did the right thing, Destrijker says. Destrijker first saw the DACS system at the Eurotier show in 2010. - The system was so different from the systems we ...


    By DACS A/S

  • Grober Calf Coat

    Keep them warm and they will grow Did you know…when a calf is comfortable they will turn feed into gain more efficiently. In other words, a calf that isn’t comfortable will need more milk. Since keeping warm is energetically expensive it’s important to understand that a warm calf has more energy to grow! By using a Calf Coat they will use less energy for body ...


    By Grober Nutrition USA

  • Bull Calves Need Care Too

    By far, most bull calves will never become a lasting benefit to a dairy herd, and as such may not always receive the same level of care that heifer calves do. Harmonizing your calf rearing programs will yield positive results for all calves and your bottom line. All calves require excellent care, especially in the first few days of life. Without adequate, timely colostrum and proper ...


    By Grober Nutrition USA

  • Building Longevity into Composting Buildings

    There are a variety of corrosion resistant options for enclosed composting facilities, where the harsh environment shows no mercy to exposed metal surfaces. MOISTURE is no stranger in Canada's Maritime provinces, so when the Fundy Region Solid Waste Commission (FRSWC) in Saint John, New Bruns-wick embarked on a composting program, putting the operation indoors was a practical choice. The ...


    By BioCycle Magazine

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