2202 gl trials summary
TRANSCRIPT
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Pasture Harvest Trials
Pasture INTAKE is a major driver of milk production and farm profit
Trial Objectives:Comparison of pasture harvested: Great Land Treated v’s Control
Method:• Paired or Split Paddock trials• Weekly measure of pasture DM/Ha, Treated & Control areas• ‘Rising Plate Meter’ converts height to DM/Ha• Same day every week for main season• Underreporting arises from inability to capture pre and post graze
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2015 Dairy Trial Farm Locations
Western Victoria
Gippsland
Southern Riverina
Northern Victoria
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Pasture Harvest Trials
Typical Weekly Pasture Reading Chart
Split Paddock
Line charts starts at week prior to first grazing
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Pasture Harvest Trials
Regional Summary
Harvested Pasture >> MS Production >> Incremental Revenue Direct to Bottom Line
(due to additional flow through benefits - input costs, animal health, productivity)
REGIONNo.
FarmsIrrigated /
DrylandNo.
TrialsNo.
TrialsControl (Base)
kgDM/HaGL Treat. Gain
kgDM/Ha % Gain Range (%)
North Vic 6 6 / 0 12 9 7,582 2,085 28% 14% to 75%
Gippsland 8 5 / 3 14 12 5,169 1,895 37% 2% to 161%
SW Vic 14 1 / 13 23 14 6,557 1,106 17% 5% to 79%
Sthn Riverina 12 12 / 0 94 69 6,864 807 12% -9% to 25%
OVERALL 40 24 / 16 143 104
Trials Completed and Reported (Average Gain)Trials Established
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Pasture Harvest Trials
Other observations beyond pasture harvest gains
• Pasture uniformity, clover content, weeds
• Pastures lasting longer in dry condition (improved soil moisture)
• Grazing pressure and grazing uniformity
• Animal health, calf health (where larger portion of farm is treated)
Fact: 100,000 change in BSCC impacts milk production by 5% – subclinical
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7 Day Grazing Trials
Objective:
Measure influence of Great Land treated pasture on Milk Production
Method:Graze nominated pasture for 7 day periods: Control > Treated > ControlNeed at least one third of the farm as treated paddocks Milk data from third party processor
Approx 36 hours Intake to milk output
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May-C May-T May-C Jun-C Jun-T Jun-C July-C July-T Jul-C Nov-C Nov-T Nov-C Jan-C Jan-T Jan-C 8,000
9,000
10,000
11,000
12,000
13,000
14,000
15,000
16,000
17,000
18,000
7 Day Grazing Trial (2015/16), ‘Great Land’ Treatment Herd Average - Daily Milk Volume (L/Period) Control Treatment
Season Average Volume to End Nov.Grazing Treated Paddocks = Gain 440 L/day (2.8%)
No. Cows Reduced, Drying Off
Source: Murray Goulburn
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May-C May-T May-C Jun-C Jun-T Jun-C July-C July-T Jul-C Nov-C Nov-T Nov-C Jan-C Jan-T Jan-C 50
75
100
125
150
7 Day Grazing Trial (2015/16), ‘Great Land’ Treatment BMCC - Herd Average for Period ('000)
Control Treatment
Source: Murray Goulburn
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Full Farm - Demonstration CaseTasmania
Conventional Scenario
• Fertilisers dominated by urea (250-350 kg N/yr), super phosphate, muriate of potash
• Pastures not responding to N applications, pastures thin and limited clover.
• Weed problems
Results of Biological Approach Over 5-7 years, with GL in FY15
• Milk & MS production increased• BSCC reduced by > 100,000• Revenue and profit increase• Pastures more even, clover dense
and leaves double in size, root zone much deeper
• Weeds under control• Corby grubs significantly supressed• Cows filling up on pasture more
quickly (nutrient quality), pasture utilisation increased, stocking rate increased,
• Fertility increased, portion of heifer calves increased (consistently)
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Full Farm PerformanceTasmania
2013/14 2014/15 VarianceHerd Size 550 610 60 11%Pasture (tDM/ha) 6.8 9.8 3.0 44%Milk price($/kg MS)
6.63 6.22 -0.43 -6%
Milk Production (Milk Solids – MS)Per Cow 368 389 21 6%
Per Hectare 889 1,040 151 17%Dairy ProfitPer hectare $625 $1,121 $496 79%Per cow $259 $419 $160 62%
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PastureMT DM/Ha
Dairy Profit+$113,000
DairyRevenue
Herd +60 Head
Milk Solids35,000kg
$142K
$256K
79%
Milk Price-$0.41/kg
$1,343K
$1,477K
10%
$137K
Impact on Dairy Revenue (FY15 vs FY14)
-$83K
$80K
6.8 MT
9.8MT
44%
Revenue FY14 $1,343,100Price Decrease -$83,090Herd Size Increase $137,338MS Volume & Value $79,678Revenue FY15 Total $1,477,026Revenue Increase $133,926
FY14 FY15 FY14 FY15 FY14 FY15
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Using Trial Results
Profit / Workload / Sustainable / Quality
ConventionalSystem
SustainableSystem
Indirect Benefits:• Reduced Input Costs
• Fertiliser/Chemicals/Health• Animal health gains, nutrient balance• Productivity• Cow Fertility• Calf Mortality
Direct Benefits• More grass• More Milk
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Nutrients
PastureQuality & QuantityIncreased Growth
Palatability
Mastitis
Mortality
Fertility
Milk Quality & Quantity
Increased Milk SolidsDecreased Somatic Cell Count
Farm InputsDecreased fertiliser
Decreased HerbicidesDecreased feed $
Increased Nutrient Availability
• Improved soil structure• ↓ Nitrogen leaching• ↑Organic matter• ↑Moisture retention• Improved fertiliser efficiency
Lameness
Whole System Approach: Profits & Sustainability