Economic evaluation of best food and feed preservation strategies.

Principals of food/feed preservation

silage making, from seed to feed

Selected forages for silage making

Harvesting

Wilting

Chopping

Enrichment

Transportation

Compaction

Sealing

Feed out

Synchronization

The microbiology and chemistry of silage

Silage additives

Haylage

Forage health

Ensiling facilities - silos and machinery

Preservation of residues and by-products by ensiling

Animal wastes

Preservation of forage by haymaking

Comparison between ensiling and haymaking - advantages and disadvantages