Bgolden: Created page with "Dry Matter Determination of Feed and Faecal Samples. == Equipment required: == # Oven set at 80°C # Foil trays (ensure they are a suitable size for the sample you have) # Balance (PAT tested) # Lab coat and gloves # Heatproof safety gloves == Method: == # Zero balance. # Weigh empty foil tray and record the weight. # Add your sample to the foil tray DO NOT zero the balance before adding your sample. # Record the weight of sample + foil. # For faecal samples a single..."

2024-01-21T14:51:10Z

Created page with "Dry Matter Determination of Feed and Faecal Samples. == Equipment required: == # Oven set at 80°C # Foil trays (ensure they are a suitable size for the sample you have) # Balance (PAT tested) # Lab coat and gloves # Heatproof safety gloves == Method: == # Zero balance. # Weigh empty foil tray and record the weight. # Add your sample to the foil tray DO NOT zero the balance before adding your sample. # Record the weight of sample + foil. # For faecal samples a single..."

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Dry Matter Determination of Feed and Faecal Samples.

== Equipment required: ==

# Oven set at 80°C
# Foil trays (ensure they are a suitable size for the sample you have)
# Balance (PAT tested)
# Lab coat and gloves
# Heatproof safety gloves

== Method: ==

# Zero balance.
# Weigh empty foil tray and record the weight.
# Add your sample to the foil tray DO NOT zero the balance before adding your sample.
# Record the weight of sample + foil.
# For faecal samples a single tray is used for each sample and feed samples are usually dried in triplicate. This is dependent on the amount of sample you have.
# Dry at 80°C for 5-7 days until samples are completely dry.
# To check the dryness of samples, foil and sample should be weighed twice over two consecutive days. If the weight drops again (>0.3g) then they should be weighed a third time.
# To calculate dry matter work out the pre and post drying sample weights by subtracting the weight of the foil tray from the weight of sample + foil.
# Then Dry Matter = post sample weight/pre sample weight.
# Multiply this value by 100 to get DM% and by a 1000 to get DM g/kg.
# An average DM value can be calculated for samples run in duplicate or triplicate. If replicate values differ by >5%, repeat the determination.

== Training: ==

Users should be supervised by a trained individual when first carrying out the procedure.

Feed Intake: Appendix A: Standard Operating Procedure Nottingham - Revision history