Home
http://www.virbac.fr/ http://www.boehringer-ingelheim.com/ http://www.novartis.com/ http://www.animalhealth.bayerhealthcare.com/
vetcontact
Vetrinär
Tiermedizin
  WELCOME  
vetcontact
Vetrinär
Tiermedizin
  Privacy Policy  
  Home  
  Login / Newsletter  
vetcontact
Vetrinär
Tiermedizin
  CONTACTS  
vetcontact
Vetrinär
Tiermedizin
  Classifieds  
  New Products  
  VetCompanies  
  VetSchools  
vetcontact
Vetrinär
Tiermedizin
  PROFESSION  
vetcontact
Vetrinär
Tiermedizin
  Edutainment  
  VetAgenda  
  Presentations  
  Posters  
  ESAVS  
  Specialisation  
vetcontact
Vetrinär
Tiermedizin
  INSIGHT  
vetcontact
Vetrinär
Tiermedizin
  Congress News  
  Picture Galleries  
vetcontact
Vetrinär
Tiermedizin
  PRODUCTS  
vetcontact
Vetrinär
Tiermedizin
  Bayer  
  Boehringer Ing.  
  Novartis  
  Virbac

 
  Simply book for less...  
    

Bovine    Equine    Small Animal Practice    Swine Practice    Articles    Vetjournal    
deutsch english español polski francais
Home / WELCOME / Archiv / Bovine /     
 
New research projects to minimize odor
In large livestock barns noxious smells and possible air contaminants can be a big problem. Now Purdue University scientists are formulating ways to minimize these problems, in collaboration with the U.S. Department of Agriculture, U.S. Environmental Protection Agency (EPA) and the National Pork Board.


They are monitoring the emissions of animal waste-caused pollutants that emanate from the Purdue swine research facility.

`Large livestock facilities don`t fall under current emissions standards because no baseline data exists for such operations, and there is even less information on the odor issue,` says Brian Richert, a Purdue professor of animal sciences and one of the people leading the study. `This is because it`s very difficult to do measurements.`

Purdue`s 15,500-square-foot, 12-room Swine Environmental Research Building can hold 720 hogs and replicate actual conditions at working farms.

Emissions of animal waste-caused pollutants include particulate matter, ammonia, hydrogen sulfide, methane, carbon dioxide and nitrous oxide, which is a byproduct of ammonia. The latter three are considered greenhouse gases. Monitoring of emissions occurs around the clock via a $50,000 monitoring device that captures gas readings at 25 different points throughout the facility.

Though the EPA doesn`t regulate odors, it does restrict emission amounts of odor-causing chemicals. Any facility emitting more than 100 pounds per day of either hydrogen sulfide and/or ammonia must report it to the EPA. The fine for exceeding the 100-pound threshold is $27,000 per day. About 3,500 pigs can generate 100 pounds of ammonia per day, says Albert Heber, professor of agricultural and biological engineering.

`There are several ways to measure ammonia, and we are using top-of-the-line, EPA-approved instruments that use a chemiluminescence method that mixes nitrous oxide with ozone to create a glow,` Heber says. `We also use an infrared method and similar methods for hydrogen sulfide.`

The 12 identical rooms allow researchers to feed the animals using varying ingredients in order to determine which feed recipes contribute to amounts of urine, manure, smells and gasses, as well as how they influence the growth of the animals.


Source: www.dvmnewsmagazine.com/dvm/


Tell a friend   |   Print version   |   Send this article

BOVINE

Lifetime prognosis in cattle with necrotic laryngitismembers
Necrotic laryngitis, caused by Fusobacterium necrophorum, frequently requires surgical intervention (laryngostomy) in the chronic stage. A total of 221 cattle diagnosed with necrotic laryngitis by laryngoscopy and surgically treated were enrolled in this retrospective cohort study. The objective of this study: To determine survival until slaughter of cattle surgically treated for necrotic laryngitis and to identify predictors of mortality.

  • ECG findings in neonatal calves with diarrhea and associated potassium balance disordersmembers
  • Bacterial translocation in calves with atresia colimembers
  • Optimising lameness detection in dairy cattle members
  • Role of melatonin and its receptors in animal reproductionmembers
  • Physiological changes in inflammatory parameters in cows prae and post partummembers
  • Zinc Deficiency-Like Syndrome in Fleckvieh Calvesmembers
  • Fertility of dairy cows after adding superphosphate to the drinking watermembers
  • Activity of continous releasing oxfendazole capsules against Ostertagia ostertagiimembers
  • Tricho-dento-osseus-like syndrome in a Brown Swiss calfmembers
  • Non-tuberculous Mycobacteria in healthy slaughtered cattle and the abattoir members
  • Subclinical ketosis in dairy cows: prevalence and risk factorsmembers
  • Metabolic profiles of cow`s bloodmembers


  • [ Home ] [ About ] [ Contact / Request ] [ Privacy Policy ]

    Copyright © 2001-2018 VetContact GmbH
    All rights reserved