II.
UPEI Department of Engineering
550 University Avenue
Charlottetown
PEI C1A 4P3
Page
43
of 55
Site Visit:
Small Farm Biogas Project
Farm: Sandy Rae Farm, Brooklyn – Dannie MacKinnon
Date: June 12, 2008
Animals: 130-140 Dairy
Report by: Matthew Hall
VI.
Inputs
Available
manure
Animals
130-140 cows total
70 milking at a given time (or 65???)
10 ‘resting’
Others in pasture
Feed amounts
Ensiled grass
51 kg/cow-day
Meal mixture
10kg/cow-day
Hay
4 bales/day
= ???
Feed details
Best harvested just before it
heads
After 3 days in silo, pH
drops to <5
Mixture of grasses (incl.
Timothy) and alfalfa (to be
changed to clover?)
17% protein
Mixture of barley, wheat corn,
roll roasted beans, protein
supplement
17.5% protein
Feed notes
Waste silage from barn is given to heifers and dry cows, applied to field???
Each silo holds 90 tons, which feeds milkers for 90 days
Animal locations,
manure
distribution
70 milking cows in barn full time – 100% of manure goes to handling system
10 milkers + the remaining cows (heifers):
•
summer: in pasture – manure is distributed on fields
•
winter: in building – manure builds up under foot and is periodically
