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Dietary composition and particle size effects on swine manure characteristics and gas emissions
- Source :
- Journal of Environmental Quality. 49:1384-1395
- Publication Year :
- 2020
- Publisher :
- Wiley, 2020.
-
Abstract
- Nutrients excreted from animals affect the nutritive value of manure as a soil amendment as well as the composition of gases emitted from manure storage facilities. There is a dearth of information, however, on how diet type in combination with dietary particle size affects nutrients deposited into manure storage facilities and how this affects manure composition and gas emissions. To fill this knowledge gap, an animal feeding trial was performed to evaluate potential interactive effects between feed particle size and diet composition on manure characteristics and manure-derived gaseous emissions. Forty-eight finishing pigs housed in individual metabolism crates that allowed for daily collection of urine and feces were fed diets differing in fiber content and particle size. Urine and feces were collected and stored in 446-L stainless steel containers for 49 d. There were no interactive effects between diet composition and feed particle size on any manure or gas emission parameter measured. In general, diets higher in fiber content increased manure nitrogen (N), carbon (C), and total volatile fatty acid (VFA) concentrations and increased manure VFA emissions but decreased manure ammonia emissions. Decreasing the particle size of the diet lowered manure N, C, VFAs, phenolics, and indole concentrations and decreased manure emissions of total VFAs. Neither diet composition nor particle size affected manure greenhouse gas emissions.
- Subjects :
- Environmental Engineering
Swine
Amendment
chemistry.chemical_element
010501 environmental sciences
Management, Monitoring, Policy and Law
01 natural sciences
Ammonia
chemistry.chemical_compound
Nutrient
Animal science
Animals
Particle Size
Waste Management and Disposal
Feces
0105 earth and related environmental sciences
Water Science and Technology
04 agricultural and veterinary sciences
Animal Feed
Pollution
Nitrogen
Manure
Diet
chemistry
040103 agronomy & agriculture
0401 agriculture, forestry, and fisheries
Composition (visual arts)
Gases
Particle size
Subjects
Details
- ISSN :
- 15372537 and 00472425
- Volume :
- 49
- Database :
- OpenAIRE
- Journal :
- Journal of Environmental Quality
- Accession number :
- edsair.doi.dedup.....1a0067d7a34cc1d6a2f6b452b310ebff