Crop Monitor · Pasture Testing

Know Exactly What
Your Animals Are
Getting

The Animal Dietary Mineral Balance Report translates pasture analysis into daily mineral intake — matched against your animal's true requirements — so you can identify deficiencies and excesses before they become metabolic disorders.

6
Animal classes covered
4
Key risk indices
$0
Added cost with MPast
Sample ADMB · Dairy Cow 450 kg · Peak Lactation
Calcium (Ca)
OK
Magnesium (Mg)
Low
Potassium (K)
High
Sodium (Na)
Low
Copper (Cu)
OK
Selenium (Se)
Low
Cobalt (Co)
OK

Grass Staggers
2.6
⚠ Increased risk
Bloat (K/Na)
18.4
⚠ Monitor
DCAD Milk Fever
312
⚠ Increased risk
Ca/P Ratio
1.8
✓ Recommended
Daily Mineral Intake Grass Staggers Index Milk Fever (DCAD) Bloat Risk Assessment Dairy · Beef · Sheep Selenium & Copper Metabolic Disorder Prevention Deficit / Surplus Reporting Daily Mineral Intake Grass Staggers Index Milk Fever (DCAD) Bloat Risk Assessment Dairy · Beef · Sheep Selenium & Copper Metabolic Disorder Prevention Deficit / Surplus Reporting
About the Report

Animal Requirements,
Not Just Plant Levels

Standard pasture analysis compares mineral levels against plant and animal requirements combined. The ADMB report is different — it focuses exclusively on what your animal needs each day and how well the current feed delivers it.

Results are expressed as Daily Intake in grams and milligrams, not as a feed concentration. This makes it easy to calculate supplementation quantities and to account for changing dry matter intake across the season.

For dairy cows, the report factors in lactation stage and calving date. Requirements are scaled to liveweight and adjusted automatically when you supply your herd's details — or sensible defaults are applied if not.

"If the report shows a deficit of 8 mg of copper per animal per day, it is simple arithmetic to convert this into quantities to incorporate into feeds."

— Crop Monitor Technical Note
⚖️

Meaningful Units

Daily grams and milligrams let you calculate supplementation quantities directly — no conversion from feed concentrations required.

📊

Visual Bar Graph

A quick-read bar chart shows the severity of each deficiency or surplus at a glance, alongside the numeric difference.

🔗

Nutrient Interactions

Four validated ratios flag where mineral interactions are likely to raise the risk of grass staggers, bloat, or milk fever.

Default Daily DM Intake — Dairy Cow (450 kg)
Early Lact.
13.5 kg
Peak Lact.
18 kg
Late Lact.
13.5 kg
Dry
9 kg
Values used when daily DM intake is not supplied. Requirements are scaled to liveweight; if calving date differs from July the lactation schedule adjusts accordingly.

Free with the Mixed Pasture Profile

Add an ADMB report to any Mixed Pasture Profile [MPast] at no extra charge. Enter ADMB in the "Other Tests" column and supply animal details in the instructions section of your request form.

How It Works

Three Calculations,
One Clear Picture

The ADMB report is built on three straightforward steps that turn a pasture sample into actionable mineral management guidance.

1

Sample Your Pasture

Collect at least 500 g at grazing height from paddocks ready to graze. Avoid dunging patches, troughs and gateways. Send to Crop Monitor promptly — courier preferred.

2

Provide Animal Details

Record species, average liveweight and — for dairy — calving month and daily DM intake. Write ADMB in "Other Tests". Up to two species can be assessed from one sample.

3

Daily Intake Calculated

Mineral concentrations in the feed are multiplied by daily DM intake to give the actual quantities consumed in grams and milligrams per animal per day.

4

Deficit or Surplus Shown

The gap between daily intake and daily requirement is presented numerically and as a colour-coded bar graph — so action priorities are immediately clear.

Sampling tip: Use clean hands and pasture shears to minimise contamination. Cobalt readings are particularly sensitive to soil on the sward. Avoid powdered disposable gloves — the powder can introduce zinc contamination. Sample kits including sealable bags and request forms are available from Crop Monitor on request.

🐄  Two animal classes — for example dairy cows and beef cattle — can be assessed from a single pasture sample at no extra cost.

Request a Report →
Risk Indices

Four Indices That
Protect Your Herd

Beyond per-mineral analysis, the ADMB report calculates four validated ratios that highlight interaction effects most likely to cause metabolic disorders.

Grass Staggers (Tetany) Index

K / (Ca+Mg) meq

High spring potassium reduces the availability of calcium and magnesium, raising hypomagnesaemia risk. The index flags when supplementation is warranted before clinical signs appear.

< 1.8 Recommended > 2.2 Increased risk

K/Na Ratio — Bloat Index

K : Na

High potassium is linked to low pasture sodium, poor dietary sodium uptake and increased bloat incidence in grazing animals. Adequate sodium is especially important during dairy lactation.

< 10 Recommended > 20 Increased risk

DCAD — Milk Fever Index

(K+Na) − (S+Cl) meq/kg

Dietary Cation Anion Difference estimates whether a diet is acidogenic or alkalogenic. Milk fever risk rises progressively above 200. Increasing sulphur + chloride or reducing potassium + sodium through supplement selection is the standard management response.

< 200 Recommended > 200 Increased risk

Ca/P Ratio

Ca : P

Calcium and phosphorus interact: when one is marginal, a high level of the other can worsen the outcome. NZ pastures tend to be low in calcium, so high phosphorus giving a low Ca/P ratio is a recognised milk fever risk factor.

> 1.5 Recommended < 1.2 Increased risk
Note on ratios: Crop Monitor only reports indices that have established validity as risk indicators. The bar graph shows each mineral individually — the four ratios are calculated separately to highlight interaction effects that would not be visible from individual mineral levels alone.
Stock Classes

Reports for Every
Animal on Your Farm

ADMB reports are calibrated to six animal classifications, each with its own default liveweight and requirement set. Supply actual values for the most precise results.

🐄

Dairy Cows

Default: 450 kg (milking season wt)

Requirements vary by lactation stage. Provide calving month, daily DM intake and average liveweight for a fully tailored report. The most seasonally complex animal class.

🐂

Beef Cattle

Default: 400 kg

Assumes animals are well fed on the sampled diet in an active growth stage. Provide average liveweight to scale requirements proportionately.

🐑

Sheep & Lambs

Default: 60 kg / 30 kg

Separate defaults for ewes and lambs. Provide average liveweight per mob for site-specific recommendations across your flock.

🐐

Dairy Goats

Default: 60 kg

Mineral requirements assessed against dairy goat standards. Particularly relevant for selenium, copper and iodine status on intensive operations.

🦌

Deer

Default: 90 kg

Calibrated to deer physiology. Useful for velvet and venison operations where trace mineral balance is a key production and health factor.

🐴

Horses

Default: 500 kg

Pasture mineral assessment with requirements calibrated for horses, where calcium, phosphorus and selenium balance are priorities for bone and reproductive health.

Elements of Interest

Selenium & Copper —
Handle With Care

Two elements warrant particular attention when interpreting the ADMB report.

Selenium — Crop Monitor' interpretive scale targets 0.05–0.15 mg/kg in feed for high-producing dairy cows: a margin above the deficiency threshold allowing for seasonal and analytical variation. The high vitamin-E levels typical in NZ pastures complement selenium metabolism in grazed dairy cows — an advantage that does not apply to housed animals in overseas conditions.

Copper — High levels of molybdenum, sulphur, iron and zinc all reduce dietary copper availability. There is no reliable formula to quantify these interaction effects. The report flags individual copper status; any suspected secondary deficiency warrants further investigation with your veterinarian or consultant.

Some feeds — grain-based concentrates, maize silage, Sudax grass — are inherently low in minerals. The ADMB report will highlight this without implying inferiority. These feeds are valuable energy supplements; the report simply signals when additional mineral management is needed in the overall diet.

0.05–0.15
mg/kg Se target range (dairy)
Mo, S, Fe, Zn
Elements that reduce Cu availability
2
ADMB animal classes per sample
g & mg
Results as daily intake units
Contact Us

Request an ADMB
Report Today

Get in touch with our Agriculture Client Service team to order a sample kit, ask a technical question, or discuss which pasture profile best suits your operation.

📞
Freephone
03 6352 4444
✉️
Email
mail@cropmonitor.info
🌐
Website
cropmonitor.info
📋
How to Order
Enter ADMB in "Other Tests" on your plant sample request form. Add animal details in the instructions section. Sample kits available on request.
💡
Related Profiles
Mixed Pasture [MPast] · Extended Pasture Feed [ExtFed] · Pasture Feed Quality [Feed]