Spatial variability of broiler litter composition in a chicken house

Journal of Applied Poultry Research

Volumn 13, Issue 1, 2004, Pages 29-43

  Tasistro, Armando S ^a   Kissel, David E ^a   Bush, Parshall B ^a  

^a UNIVERSITY OF GEORGIA   (United States)

Author keywords

Broiler litter; Chicken house; Composition; Decomposition; Spatial variability

Indexed keywords

AVES; GALLUS GALLUS;

EID: 2042520923     PISSN: 10566171     EISSN: None     Source Type: Journal    
DOI: 10.1093/japr/13.1.29     Document Type: Article

References (22)

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7. 3 to determine total concentrations and after extraction with deionized water to determine total dissolved concentrations. Water extracts were obtained from 1 g as follows: 200-mL suspensions of ground poultry litter in deionized water, after being shaken for 4 h in a reciprocating shaker, were centrifuged at 3,000 rpm for 15 min. The supernatant was filtered through 0.45-μm filters.
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9. Water content was determined by measuring weight loss in samples containing 110 to 120 g and 35 to 45 g of undisturbed and ground poultry litter, respectively, after drying in a forced-draft oven for 48 h at 65°C. Water content was expressed as weight loss between fresh and dry conditions as a percentage of the fresh weight. Before dry weights were determined, samples were allowed to equilibrate to room temperature in a dessicator with anhydrous calcium sulfate. Weighing was done with precision balances to the nearest 0.001 g. Samples with more than 30% water were dried for 30 to 32 h in an airflow chamber at 22 to 24°C; the gravimetric water lost was recorded and included in the final figure for water content in the ground samples.
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11. 3-N) and pH were measured in duplicate in suspensions of 0.5 g of poultry litter in 50 mL of deionized water using an ion selective electrode and a pH meter with glass electrode at 22 to 24°C, respectively.
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