Manure composition of swine as affected by dietary protein and cellulose concentrations.

@article{Kerr2006ManureCO,
  title={Manure composition of swine as affected by dietary protein and cellulose concentrations.},
  author={Brian J Kerr and Cherie J. Ziemer and Steven L Trabue and John D. Crouse and Timothy B. Parkin},
  journal={Journal of animal science},
  year={2006},
  volume={84 6},
  pages={
          1584-92
        }
}
An experiment was conducted to investigate the effects of reducing dietary CP and increasing dietary cellulose concentrations on manure DM, C, N, S, VFA, indole, and phenol concentrations. Twenty-two pigs (105 kg initial BW) were fed diets containing either 14.5 or 12.0% CP, in combination with either 2.5 or 8.7% cellulose. Pigs were fed twice daily over the 56-d study, with feed intake averaging 2.74 kg/d. Feces and urine were collected after each feeding and added to the manure storage… 
Dietary protein and cellulose effects on chemical and microbial characteristics of Swine feces and stored manure.
TLDR
Fecal results indicate that after 2 wk of feeding experimental diets the animals were not fully adapted to the diets, and manure was not representative of stored manure, limiting its usefulness in developing standards and recommendations for on-farm management practices.
Swine diets impact manure characteristics and gas emissions: Part I sulfur level.
TLDR
Phenolic compounds and H2S were the major odorants emitted from manure that increased with increasing dietary S, and increased NH3, sulfide, butanoic, and pentanoic acid concentrations in manure.
Swine diets impact manure characteristics and gas emissions: Part I protein level.
TLDR
Increasing dietary CP levels increased manure pH, total solids, total N, and total S, including increased levels of ammonia (NH3), volatile fatty acids, and phenolic compounds.
Swine diets impact manure characteristics and gas emissions: Part II sulfur source.
TLDR
Dietary S source had a significant effect on excretion of DM, C, N, and S in manure, with Pigs fed the diets containing DDGS had significantly higher levels of NH3, VFAs, and phenols in manure compared to pigs fed the CSBM diet.
Swine diets impact manure characteristics and gas emissions: Part II protein source.
TLDR
Dietary protein source had a significant effect on manure pH, total solids, total C, protein N, and total S and there were no significant differences in C or S emissions or in odorant emission as affected by source of dietary protein.
FROM PIGS FED DIETS CONTAINING DRIED
Corn dried distillers grains with solubles (DDGS), a by-product of the ethanol industry, has become a common feed ingredient for growing pigs. The nutrient composition of DDGS may contribute to the
Effects of dietary fiber and reduced crude protein on ammonia emission from laying-hen manure.
TLDR
Results of this study showed that dietary inclusion of 10.0% corn DDGS, 7.3% WM, or 4.8% SH lowered NH(3) emission from laying-hen manure; however, reducing the CP content by 1 percentage unit had no measurable effect on NH( 3) emission.
Impact of reduced dietary crude protein levels and phytase enzyme supplementation on growth response, slurry characteristics, and gas emissions of growing pigs.
TLDR
Reduction in dietary CP levels resulted in reduced weight gain and poor feed conversion ratio (FCR), while, reduced CP with phytase supplementation reduced concentration of methane gas emitted.
Impact of narasin on manure composition, microbial ecology, and gas emissions from finishing pigs fed either a corn-soybean meal or a corn-soybean meal-dried distillers grains with solubles diets.
TLDR
Feeding a diet which contains an elevated level of indigestible fiber resulted in more fiber in the manure which therefore dramatically affected manure composition, gas emissions, and microbial ecology, while narasin supplementation to the diet did not exhibit a significant effect on any of these parameters in the resultant swine manure.
Effects of crystalline amino acid supplementation to the diet on odor from pig manure.
TLDR
Results showed that supplementing crystalline S-containing AA in surplus of the requirement increased odor emission and odor intensity and reduced odor hedonic tone from the air above the manure pits, and no differences were observed in ammonia emission from manure of pigs fed different levels of AA supplementation.
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