2018/19 Season HUB Weekly Farm Update as at 28th June 2018

Calf shed June 2018

Table 1: Key Numbers 28th June

Milking Platform average Standard Kale Red Lower intensity Kale Blue Standard Fodder beet Green Lower intensity Fodder beet Yellow
Soil temp 3.3
Rainfall 30.4
Av. Pasture Cover 2210 2211 2204 2247 2178
Round Length N/A N/A N/A N/A N/A
Pasture Growth rate 19.1 20 18 20 19
No. of cows milking 0 0 0 0 0
Av. Kg MS/cow/day N/A N/A N/A N/A N/A
Av. Kg MS/ha N/A N/A N/A N/A N/A
Milking frequency N/A N/A N/A N/A N/A

Week summary:

  • The c-dax APC estimate from last week has been compared to that predicted using the rising plate meter (hgt x 140 + 500) and the numbers align well at lower pasture covers. No pasture drive this week (measured fortnightly over winter) but APC from plating is 2284 kg DM/ha.
  • The last of the calf shed is being finished off. Woodchips have arrived.
  • Business as usual this week on farm.

Four different farmlets Feed Wedges 28th June 2018

Blue = Lower intensity kale

Green = Standard fodder beet

Red/Pink = Standard kale

Yellow = Lower intensity fodder beet

Herd & Production

  • Four herds split evenly on age, BW / PW to ensure the herds are as even as possible at the start of the 2018/19 season.
  • Each herd allocated a farmlet corresponding to their herd tag colour Green, Blue, Yellow and Pink.
  • Farmlets have paddocks allocated so each herd has equal walking distance from the shed and the same proportion of each soil type and equal proportions of pastures in the FVI trial (forage value trial – refer web site section on research).

Table 2: Herd & Production

Standard Kale Red Low intensity Kale Blue Standard Fodder beet Green Low intensity Fodder beet Yellow Units
Milkers - TAD N/A N/A N/A N/A cows
Milkers - OAD N/A N/A N/A N/A cows
Colostrum N/A N/A N/A N/A cows
Springers N/A N/A N/A N/A cows
Sick mob cows
Culls / deaths cows
Current Stocking Rate N/A N/A N/A N/A cows/ha
Production (to the factory) (../../18) N/A N/A N/A N/A
Total Milksolids (YTD) N/A N/A N/A N/A kgMS
Total Milksolids (MTD) N/A N/A N/A N/A kgMS
Total Milksolids (last 7 days) N/A N/A N/A N/A kgMS
Average per cow daily production (last 7 days) N/A N/A N/A N/A kgMS/cow/day
Per ha production (last 7 days) N/A N/A N/A N/A kgMS/ha
Other (to the factory) N/A N/A N/A N/A
Protein:Fat Ratio (7-day avg.) N/A N/A N/A N/A %
Milk Urea (7-day avg.) N/A N/A N/A N/A mg/dl
SCC (7-day avg.) N/A N/A N/A N/A cells/ml
Fat Evaluation Index (FEI) N/A N/A N/A N/A
Fonterra 18/19 Forecast 6.95 $/kgMS

Cows BCS results this week compared to 5/6/2018:

Standard Kale Red Lower intensity Kale Blue Standard Fodder beet Green Lower intensity Fodder beet Yellow
BCS R2 (5/6/2018) 5.8 5.8 5.7 5.6
BCS R2 (21/6/2018) 5.6 5.8 5.7 5.4
BCS MA (5/6/2018) 4.7 4.7 4.6 4.7
BCS MA (21/6/2018) 4.7 4.8 4.7 4.7

Comments:

  • Culls are still on farm and being used to eat excess fodder beet. They will leave the first week of August

Feed Management

  • The four herds are to remain on their allocated farmlets always.
  • Decision rules for Cows of BCS 4 or less are that they can be fed extra supplement in the shed as required by the farm team and be milked OAD but will remain in their allocated herds for research purposes.
  • The concentrate in the shed is to be determined for the 2018/19 season.

Table 3: Feed Offered to milkers

Standard Kale Red Lower intensity Kale Blue Standard Fodder beet Green Lower intensity Fodder beet Yellow
Milkers – Pasture Kg DM /cow/day N/A N/A N/A N/A
Milkers – Fodder beet kg DM/cow/day N/A N/A N/A N/A
Milkers – Baleage kgDM/cow/day N/A N/A N/A N/A
Milkers – Concentrates kgDM/cow/day N/A N/A N/A N/A
Milkers below BCS target - Concentrates kgDM/cow/day N/A N/A N/A N/A
TOTAL DM OFFERED N/A N/A N/A N/A

Table 4: Feed Offered to dry cows

Standard Kale Red Lower intensity Kale Blue Standard Fodder beet Green Lower intensity Fodder beet Yellow
Dry Cows – Pasture kgDM /cow/day 0 0 0 0
Dry Cows – Crop kgDM/cow/day 7.9 8.1 11.3 11.3
Dry Cows – Silage/baleage kgDM/cow/day 3.3 1.3 2.9 2.7
Dry Cows – PKE kgDM/cow/day 3.6 5.1 0 0
TOTAL DM OFFERED 14.8 14.45 14.18 14.00

Table 5: Feed Offered to heifers

Standard Kale Red Lower intensity Kale Blue Standard Fodder beet Green Lower intensity Fodder beet Yellow
R1's - Crop kgDM/day 4.8 4.8 5.0 5.0
R1's – Baleage kgDM/day 3.2 3.2 3.3 3.3
TOTAL DM OFFERED 8.04 8.04 8.3 8.3
R2's – Crop kgDM/cow/day N/A as they are in with the skinny cows of their respective herds
R2's – Baleage kgDM/day N/A as they are in with the skinny cows of their respective herds
TOTAL DM OFFERED

Comments:

  • Hub kale crops are averaging 12t/ha so PKE is being supplemented to fill the deficit in the feed budget, fed in feed trailers on the crop paddocks.
  • Lower utilisation of the kale crop has occurred with the R2s; options are being explored to increase utilisation and reduce wastage. Considerations include:
    • Splitting the daily kale allocation in half and offering narrower breaks am and pm
    • Reviewing the energy requirements and reducing PKE input
  • R1s were leaving fodder beet behind. It was calculated that they were being offered 95 MJ ME compared to their 62 MJ requirement. Because of the mob size and requirement for at least 40% baleage it is not a simple task to reduce the total daily allocation.
  • Options will be explored as to how to clean up the left behind bulbs from the R1’s to ensure a successful regrassing and crop planting for next year.

If you are unsure of the feed demand and supply requirements on your winter crop, you can use the DairyNZ winter crop allocation tool: https://www.dairynz.co.nz/feed/feed-management-tools/

Land, Pasture, Crop & Silage Management

  • Total area is 327ha(eff), 32.5ha(eff) young stock block and 294ha(eff) platform. Winter crop is grown on both blocks for all stock.
  • Crop rotation is two years in crop then re-grass. PGG Wrightson grass cultivars used are Rely, Platform and Excess, all diploids.
  • Where target residuals are missed, topping after grazing is the tool the farm team use as needed.

Table 6: Land, Pasture, Crop & Silage Metrics

Milking platform average Standard Kale Red Lower intensity Kale Blue Standard Fodder beet Green Lower intensity Fodder beet Yellow Unit
Pre - Graze cover target N/A N/A N/A N/A kgDM/ha
Post - Graze cover target N/A N/A N/A N/A N/A kgDM/ha
Average Pasture Cover (avg. over 4 farmlets) 2210 2211 2204 2247 2176 kgDM/ha
Growth Rate (avg. over 4 farmlets) 19 20 18 20 19 kgDM/ha/day
Rotation Length (avg. over 4 farmlets) N/A N/A N/A N/A N/A days
Area Available for grazing (milkers) 63.8 62.8 63.6 60.9 ha
Regrassing Area (out of rotation) N/A N/A N/A N/A ha
Baleage/Silage Area (out of rotation) 0 0 0 0 ha
Crop Area (out of rotation whole farm) 11.6 11.6 11.6 11.6 ha
Aeration Area N/A N/A N/A N/A ha
Young Stock (not included in rotation) N/A N/A N/A N/A ha

Comments:

  • Discussion around which paddocks to select for cropping next year have begun. Factors being considered include:
    • Annual pasture production from 2017-18
    • Previous cropping history
    • Existing pasture species
    • Historical land-use
    • Topography and proximity to waterways
    • The desire to spread winter crop area between the top and bottom terrace’s. The bottom terrace is in a flood plain area and therefore carries some risk and has heavier soils more prone to pugging damage and nutrient loss. If the crop area for each farmlet is split between the terraces each season we will have the ability to mitigate this risk. When soils are very wet we can shift grazing to the top terrace. Flooding risk will mean we may not be able to pre-load winter supplement in these area’s.

Fertiliser & Nitrogen

Table 7: Nitrogen use on Farm

Standard Kale Red Lower intensity Kale Blue Standard Fodder beet Green Lower intensity Fodder beet Yellow Unit
Nitrogen: Urea only (last 7 days)
Area (Winter crop) ha
Rate kg/N/ha
Fertiliser (last 7 days)
Area ha
Rate kg/ha
Climate conditions
Rainfall (total last 7 days) 30.4 mm
Soil Temp (7-day average) @10am 3.31 °C

Stock Reproductive Performance

Table 8: Reproduction Metrics

Target Expected Units
Planned start of Mating (PSM) Standard Kale Red Low intensity Kale Blue Standard Fodder beet Green Low intensity Fodder beet Yellow
Mixed Aged Cows Date
2016 Born Heifers Date
Calving spread
3 weeks 60 60 63 63 %
6 weeks 85 89 87 87 %
9 weeks 96 96 97 97 %
3 week Submission Rate 90 %
6 week in-calf rate 78 %
Empty Rate 10 %

Research Proposals

The SDH welcome research proposals for any sampling or research on the SDH, these are assessed by the Research Advisory Committee (RAC). Just send your request or ask for information via guy.michaels@southerndairyhub.co.nz

For more information check out the DairyNZ link:

https://www.dairynz.co.nz/about-us/research/research-farms/southern-dairy-hub/