freestall Articles
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Greenhouse gas, animal performance, and bacterial population structure responses to dietary monensin fed to dairy cows
Received for publication January 27, 2009. The present study investigated the effects of a feed additive and rumen microbial modifier, monensin sodium (monensin), on selected variables in lactating dairy cows. Monensin fed cows (MON, 600 mg d–1) were compared with untreated control cows (CON, 0 mg d–1) with respect to the effects of monensin on the production of three greenhouse gases (GHG), ...
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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 – specifically burning eyes ...
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Carthage System Upgrades Feeding Technology to Gestal
High Power Pork LLC., a 6000-head Carthage System sow farm, has recently undergone conversion from a conventional European-style electronic sow feeding system to the Gestal 3G free-access feeding system and is therefore announcing a group-housing retrofit with Jyga Technologies, manufacturer of Gestal. Since its establishment in 2010, the farm has used pen housing. The original open pen system ...
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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 ...
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Planning a Successful Ventilation Retrofit
In a perfect world, every barn would be a new build where ventilation could be entered into the formula throughout the design, engineering, and building process. That fantasy, as you may have guessed, sure isn’t what we at VES work with on a day-in-day-out basis. The reality is that a large swath of the ventilation consultations and installations we do at VES are actually retrofits ...
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Ventilation and cooling system to improve animal welfare and productivity
Today we talk about ventilation and cooling in the barn, a much discussed topic in our sector, through this short interview we will show you the point of view of an expert in Brazil who talks about us touching various points of ...
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