DHI 00
Official DHI: All milkings are weighed and sampled each test day.
DHI-APCS 02
Official DHI w/Alternate AM-PM Component Sampling: All milking weighed and one milking
sampled each test day, rotating the milking sampled.
DHIR 20
Official DHIR: Same protocol as DHI with additional rules imposed by breed associations.
DHIR-APCS 22
Official DHIR w/Alternate AM-PM Component Sampling: Same protocol as DHI-APCS with
additional rules imposed by breed associations.
DHIR-AP 23
Official DHIR AM-PM: One milking weighed and sampled each test day in 2x
herds, alternating AM to PM milking. Two milkings weighed and one milking
sampled each test day in 3x herds, rotating the milkings. Milking Interval
Monitoring Device Not Required. Additional rules imposed by breed
associations.
DHI-AP 31
Official DHI AM-PM: One milking weighed and sampled each test day in 2x
herds, alternating AM to PM milking. Two milkings weighed and one milking
sampled each test day in 3x herds, rotating the milkings. Milking Interval
Monitoring Device Not Required.
DHI-MO 33
Official DHI Milk Only: All milkings weighed each test day. No samples taken for component
analysis.
DHI-MO-AP 34
Official DHI Milk Only AM-PM: One milking weighed each test day in 2x herds, alternating
from AM to PM milking. Two milkings weighed each test day in 3x herds, rotating the
milkings. No samples for component analysis.
DHI-OS 40
DHI Owner-Sampler: Dairy producer weighs and samples all milkings each test day.
DHI-OS-AP 41
DHI Owner-Sampler AM-PM: Dairy producer weighs and samples one milking each test day in a
2x herd, alternating from AM to PM milking. Dairy producer weighs two milking and samples
one milking each test day in a 3x herd, rotating the milkings.
DHI-OS-APCS 42
DHI Owner-Sampler with AM-PM Component Sampling: Dairy producer weighs all milkings each
test day and samples one milking, rotating the milking sampled.
DHI-OS-MO 43
DHI Owner-Sampler Milk Only: Dairy producer weighs all milkings each test day. No samples
are taken for component analysis.
DHI-OS-MO-AP 44
DHI Owner-Sampler Milk-Only AM-PM: Dairy producer weighs one milking each test day in a 2x
herd and two milkings each test day in a 3x herd, rotating the milkings. No samples are
taken for component anaylsis.
DHI-OS-AC 45
DHI Owner-Sampler w/Breed or Plant Average Component Tests: Dairy producer weighs all
milkings each test day. No samples are taken for component analysis. Breed or plant
average component tests are used for all cows.
DHI-OS-AP-AC 46
DHI Owner-Sampler AM-PM w/Breed or Plant Average Component Tests: Dairy producer weighs
one milking in a 2x herd, and two milkings in a 3x herd, rotating the milkings. No samples
are taken for component analysis. Breed or plant average component tests are used for all
cows.
DHI-OS-TC 47
DHI Owner-Sampler w/Tri-monthly Component Tests: Dairy producers weighs all milkings each
test day. Samples for component analysis are taken from all milkings every third test day.
DHI-OS-MO-TMW 48
DHI Owner-Sampler Milk-Only w/Tri-monthly Milk Weights: Dairy producer weighs all milkings
each test day. Test days occur at 3-month intervals. No samples are taken for component
analysis.
DHI-COMM 60
DHI-Commercial: DHI supervisor weighs and samples all milkings each test
day.
DHI-COMM-AP 61
DHI Commerical AM-PM: DHIA supervisor weighs and samples one milking in a 2x herd and
weighs two milkings and samples one milking in a 3x herd, rotating the milkings.
DHI-COMM-APCS 62
DHI Commerical w. Alternate AM-PM Component Samplings: DHIA supervisor weighs all milkings
each test day and samples one milking, rotating the milking sampled.
DHI-COMM-MO 63
DHI Commerical Milk-Only: DHIA supervisor weighs all milkings each test day.
No samples are taken for component analysis.
DHI-COMM-MO-AP 64
DHI-Commerical Milk-Only AM-PM: DHIA supervisor weighs one milking in a 2x herd and two
milkings in a 3x herd, rotating the milkings. No samples are taken for component analysis.
One or more of the NCDHIP Rules are not adbered to.
DHI-SS 70
DHI Supervised Sampling: DHIA supervisor weighs and samples all milkings
each test day.
DHI-SS-AP 71
DHI Supervised Sampling AM-PM: DHIA supervisor weighs and samples one milking in a 2x herd
and weighs two milkings and samples one milking in a 3x herd, rotating the milkings.
DHI-SS-APCS 72
DHI Supervised Sampling w/Alternate AM-PM Component Sampling: DHIA supervisor weighs all
milkings each test day and samples one milking, rotating the milkings samples.
DHI-SS-MO 73
DHI Supervised Sampling Milk-Only: DHIA supervisor weighs all milkings each
test day. No samples are taken for component analysis.
DHI-SS-MO-AP 74
DHI Supervised Sampling Milk-Only AM-PM: DHIA weighs one milking in a 2x herd and two
milkings in a 3x herd, rotating the milkings. No samples are taken for
component analysis.
DHI-BASIC 80
DHI Basic Management Information: A family of testing plans offering basic management
information. These are operated differently in each DHIA, with data processed wither at a
DRPC or by the DHIA on an in-house microcomputer.
DHI-OTHER 98
Other DHI Testing Plans: A catchall category used for special purposes such as identifying
special data for research projects. |
