Spatial variation of manure nutrients and manure sampling strategy in high-rise laying-hen houses

Roberts, Steven; Xin, Hongwei; Swestka, Randy John; Yum, Man-Yu; Bregendahl, Kristjan

doi:10.3382/japr/pfw013

Cited by 3 publications

(2 citation statements)

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“…For instance, the N content in 86 fresh dairy manure and 91 poultry manure samples were 0.36 % and 1.45 % of fresh weight, respectively [ 28 , 29 ]. Similarly, the N content (on a dry basis) in 108 poultry manure samples from different locations ranged from 2.87 % to 3.58 % [ 30 ]. Chadwick et al (2000) [ 23 ] analysed 50 different manure samples, including slurries, farmyard manure, and poultry manure, and found that the organic N content on a dry basis varied from 2.29 % to 5.09 %.…”

Section: Resultsmentioning

confidence: 99%

Manure enriched with nitrogen derived from high-protein food waste in a large dining facility

Zhang,

Lin

et al. 2024

Heliyon

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Section: Resultsmentioning

confidence: 99%

Manure enriched with nitrogen derived from high-protein food waste in a large dining facility

Zhang,

Lin

et al. 2024

Heliyon

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“…Following these recommendations, 13 sampling positions were established: 8 around the perimeter of the barn, 1 in the centre and 4 along the diagonals (Fig. 1), where the greatest variability was expected [22]. Three different samples were collected at each sampling position: bedding from the top layer, bedding from the middle layer and bedding from the bottom layer.…”

Section: Animal Bedding Collection and Samplingmentioning

confidence: 99%

Analysis of Animal Bedding Heterogeneity for Potential Use in Biorefineries Based on Farmyard Manure

Sanchis-Sebastiá

Erdei

Kovács

et al. 2019

Waste Biomass Valor

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Purpose Animal bedding, a mixture of straw and manure, could be used as a feedstock for bioenergy production, but its heterogeneity poses new challenges in its use in biorefineries. We have investigated the origin of this heterogeneity and quantified it, and discuss its impact on bioenergy production. Methods Samples were collected from the bedding at different points and depths and analysed by first separating the manure from the straw by means of washing with water, and then determining the chemical composition of the liquid and solid fractions. Results The results supported our hypothesis that animal bedding behaves as a combination of several layers at different stages of degradation. Analysis revealed that the layers with higher organic content in the manure exhibited a poorer performance during the washing, since the residence time in the barn alters the washing profile of the organic fraction in the manure. It was also found that the variability in the composition of animal bedding was much greater than in other agricultural feedstocks: the manure content in animal bedding varied from 26 to 41%, and the content of fermentable carbohydrates varied by 20%. Total carbon and total nitrogen analyses showed that these changes in composition also affected the C/N ratio of the material, and thus its suitability as a feedstock for anaerobic digestion. Conclusions This implies that the residence time in the barn affects not only the heterogeneity of the properties of animal bedding, but also the best way to process it in a biorefinery.

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Dynamic and 3-D spatial variations in manure characteristics in two commercial manure-belt laying hen houses

2021

Journal of Hazardous Materials

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Spatial variation of manure nutrients and manure sampling strategy in high-rise laying-hen houses

Cited by 3 publications

References 10 publications

Manure enriched with nitrogen derived from high-protein food waste in a large dining facility

Manure enriched with nitrogen derived from high-protein food waste in a large dining facility

Analysis of Animal Bedding Heterogeneity for Potential Use in Biorefineries Based on Farmyard Manure

Dynamic and 3-D spatial variations in manure characteristics in two commercial manure-belt laying hen houses

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