B.11 - Botanical hay and rumen content analysis Flashcards
What is the first task when analysing hay
Assessment of prohibitive conditions
- Presence of poisonous/wood plants
- Dead Animals
- Human Refuse
What is the second task of hay analysis?
Assessment of nutritive value
Which plants make for bad hay?
Rushes and Sedges
If reaping of hay is too late, what may be seen?
- Spikelets are dropped
- Hay is yellow and straw-coloured
What are first class grasses?
Grasses with the dominant desireable proportion
What % of hay should be fabaceous?
What % should it exceed?
About 20%
Must be higher than 10%
What should be ascertained for a rumen content analysis?
- Origin of the forage
- Ruminal contents
Why should rumen content analysis’ be done carefully?
Potential risk of zoonotic microbial infection
How much of a sample is needed for rumen content analysis?
1-2 Litres
What allows for better identification of species in Rumen Content analysis?
Washing through a Buchner funnel
Drying
How are forages in rumen content analysis measured?
- Seperation of species
- Quantification
- Relative Mass Fractions determined
How specific should seeds by identified?
Genus level
When should chemical toxicology occur during rumen content analysis?
After specific taxa have been identified
