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Lab Analysis Results

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Pasture Analysis

Pasture samples were taken to gain insight into the variation in feed quality attributes and mineral content, which it must be remembered are a snapshot at a point time, since these values will change through the year. Recall also, the samples were taken to be representative of how the intended livestock would graze, not a full pasture cut from ground up.
Feed Metrics... what we tested and why
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Front
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Bullock

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Callide East
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Feed Quality Results
Sample Site
Front
Callide East
Jacks West
Scrub 3
Desired
Notes
1
Energy - ME (MJ/kg)
8.1
9.1
8.6
7.2
>8
Plant energy reflects the combination of soil nutrition, grazing and species desirability.
2
Crude Protein%
4.9
7.7
10.0
8.0
> 15
Low protein (<18%) suggests legume component can be improved and quality is below optimal
3
Digestibility (DMD) (%)
57
62
59
51
> 60
Below 55% will likely reduce animal performance (ADG), above 60% is good quality feed
4
Neutral Detergent Fibre% (NDF)
61
60
53
63
<50
Higher plant fibre reduces total animal intake and associated performance, below 60 preferred
There are no rows in this table
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Feed Mineral Levels
Sample Site
Front
Callide East
Jacks West
Scrub 3
Desired
Comments
1
Nitrogen %
0.74
1.26
1.56
1.20
> 3%
Nitrogen & Sulphur drive plant protein
2
Calcium %
0.36
0.18
0.37
0.26
> 0.6
Calcium drives weight gain & feed quality
3
Phosphorus %
0.26
0.12
0.25
0.19
> 0.3
P drives plant energy (ME) above
4
Sulphur %
0.15
0.14
0.23
0.11
> 0.35
N&S are critical to Protein production
5
Potassium %
1.25
1.51
1.52
1.37
2-3%
​
6
Magnesium %
0.12
0.11
0.21
0.18
> 0.25%
Low Magnesium often leads to grass tetany and staggers
7
Sodium%
0.23
0.42
0.12
0.35
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8
Trace elements
​
9
Zinc ppm
34
19
14
26
> 40
​
10
Copper ppm
3
4
4
4
> 10
​
11
Molybdenum (mg/kg)
<0.50
<0.50
0.7
<0.50
> 0.5
​
12
Ratios:
​
13
Ca:P Ratio
1.4
1.5
1.5
1.3
1.5:1
​
14
Nitrogen : Sulphur
5.0
9.3
6.8
10.6
10-20
​
15
Ca:Mg Ratio
3.0
1.6
1.8
1.4
3:1
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There are no rows in this table
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All samples show LOW P in both Soil and Feed test results. Soil P needs to be higher to achieve higher P% in feed which generally transfers into feed quality as metabolisable energy (ME)

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All samples show lower than desired metabolisable energy (ME) in the forage and P is marginal

Summary

PRIORITIES for Feed Results
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Sample Notes
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