Week ending 14-9-20 farm notes:
Kai ora koutou
APC dropped to 2063 kg DM/ha with an average PGR of 52 kg DM/ha/day. The attached feed wedge shows the paddocks that are earmarked for silage (in red), the two blue paddocks are winter annuals that are due to be planted in kale in early October. With this 22ha removed from the grazing area our stocking rate increases to 3.36 cows/ha and we require a PGR of 64 kg DM/ha/day to meet demand. Cows are still doing a good job leaving residuals between 1500-1600 kg DM/ha so we will continue to work our way through the top of the wedge for the next 3-4 days to check that a true surplus is appearing and see how well the paddocks between 1900-2100 kg DM/ha continue to grow. Most of the paddocks in the middle of the wedge have received at least 30 kg N/ha this spring.
ANIMAL HEALTH & WELFARE
The cows have been producing over 2.1 kg MS/cow/day for over five weeks now; on a high pasture diet this indicates that they have gained over 20 kg of body weight or 2/3 of 1 BCS since calving. We will have a whole herd BCS completed at the planned start of mating (PSM) by our regular assessor.
The cows have been colour-coded in preparation for mating:
Non-cycling (red and blue) cow numbers are currently at 61 and with CIDRs not due until another 9 days we expect this to be around 40. The green tail-painted cows will all be metri-checked when the vet is CIDRing.
The last of our 70 Wagyu calves have left the farm and we now have 95 AB heifers on OAD feeding with only four cows still to calf. We will be presenting the data on calf fate and income compared to last season at the Owl Farm focus day.
There is 88 t DM of purchased early season silage in the pit to replace some of our summer/autumn PK budget. This cost 18c/kg DM standing and another 20c/kg DM to transport and ensile. It is always a timely reminder to look at the true cost of making silage, whether grown on farm or bought-in. It fits well with Owl Farm’s system and infrastructure available, but means that we need to maximise our response and manage the cost of the total feed portfolio.
The effluent pond has been emptied using umbilical effluent laying and our own slurry spreader. 487,000 L was applied over two hours using Tracmap for proof of placement. The remaining slurry was put onto our annual paddocks that will go into kale this season. This approach has spread the effluent over a different portion of the farm (1.6 km pipe from the pond), reduced the wear and tear on races and ensured that we won’t have to empty the pond again until after mating when we will get the irrigation benefits of higher application rates on drier soils.
As we modify and improve our data collection each year, an addition to give more accuracy to our GHG emissions is the recording of diesel (L/ha) used by contractors, and the hectares that have had tractor work. This, along with power use for the year, will enable us to add our own information to CO2 emissions in Overseer for the season.
Unfortunately, with Covid-19 levels impacting school visits outside the classroom, fewer children have visited farms this spring, across the industry. Fortunately, at Owl Farm we have had over 19 St Peter’s classes visit the farm, and the student interest in primary production is growing. The children have a growing appreciation of how the stock are cared for and ask lots of great questions to keep us on our toes.
With calving almost over and a settled team of 2.5 we have been fitting into our 12 on:2 off roster that we will use for the remainder of the season. Calves are now on OAD and, with Pro-track installed for easy drafting during mating, we are focusing on workplace flexibility to reduce the number of tasks that are time dependent, and support getting off farm to be with our families and communities. This gives Tom time to pick kids up from the school bus, or watch hockey; and LaArni the option to get jobs done earlier in the day and finish earlier in the evenings. Find out what flexibility your team members need and how your system can support this.
PLANNING FOR THE MONTH AHEAD:
Ngā mihi nui Jo + Tom
|Milk Production - Week ending||10/08/2020||17/08/2020||24/08/2020||31/08/2020||7/09/2020||14/09/2020||Variance|
|Cow's in milk||312||335||361||382||396||405||+10|
|Springer herd/dry cows||98||75||46||28||14||4||+4|
|Number of cows in big herd||158||177||197||220||232||240||-|
|Number of cows in small herd||131||143||139||140||145||150||-|
|Number of cows in colostrum herd||18||15||24||14||14||11||+11|
|Number of Cows in the Treatment/Sick herd||4||4||1||4||4||4||-3|
|KgMS/cow/day (cows in the vat only)||2.02||2.10||2.19||2.22||2.22||2.22||+.55|
|Milk production for week ending (kgMS)||3402.00||4525.00||5095.00||5343.00||5704.00||5849.00||+1243|
|Total milk production - YTD (kgMS)||10009.00||15157.00||20582.00||25594.00||31298.00||37147.00||-90625|
|Milk production per ha (kgMS/ha/day)||3.80||4.40||4.90||5.20||5.50||5.70||+1.1|
|Total milk production per ha - YTD (kgMS/ha/YTD)||70.00||105.00||143.00||178.00||217.00||258.00||-629|
|Bulk Milk SCC (SCC x 1000)||113||131||134||126||145||148||+21|
|Animal Health - Week ending||10/08/2020||17/08/2020||24/08/2020||31/08/2020||7/09/2020||14/09/2020||Variance|
|BCS (average whole herd)||5.50||5.40||5.40||5.30||5.20||5.20||+.7|
|BCS (average heifers)||5.25||5.50||5.50||5.40||5.40||5.40||+.7|
|Lame cows - new cases||2||0||0||5||1||1||+1|
|Lame cows - YTD||4||4||4||9||10||11||-26|
|Mastitis - new cases||1||5||1||4||2||2||-|
|Mastitis - YTD||6||11||12||16||18||20||-29|
|Number of cows on penicillin||4||6||1||4||2||2||-|
|Number of cows on penicillin YTD||13||19||20||24||26||28||-37|
|Culls - new cases||4||0||0||0||0||0||-|
|Culls - YTD||4||4||4||4||4||4||-12|
|Deaths - new cases||1||0||0||0||0||1||+1|
|Deaths - YTD||2||2||2||2||2||3||-1|
|Pasture Production - Week ending||10/08/2020||17/08/2020||24/08/2020||31/08/2020||7/09/2020||14/09/2020||Variance|
|Average pasture cover (kgDM/ha)||2249||2190||2161||2242||2120||2063||-120|
|Average pasture growth rates (kgDM/day)||23||38||43||65||44||52||+11|
|Lowest post graze residual (kgDM/ha)||1400||1450||1500||1500||1500||1500||-|
|Highest pre graze cover (kgDM/ha)||3800||3100||3000||2800||2800||2850||-350|
|Average area grazed/day for milkers (ha)||3.00||3.80||4.60||5.20||6.00||6.00||+3.3|
|Total Biomass Measured (kgDM) )|
|Supplementary Use - Week ending||10/08/2020||17/08/2020||24/08/2020||31/08/2020||7/09/2020||14/09/2020||Variance|
|Average PKE (kg/cow/day)||0.10||0.80||0.50||1.50||0.50||0.30||-1.7|
|Average maize (kg/cow/day)||0.00||0.00||0.00||0.00||0.00||0.00||-|
|Average silage (kg/cow/day)||0.30||0.30||0.30||0.30||0.10||0.00||-2.5|
|Silage usage YTD||13.20||11.80||12.30||13.20||13.50||13.50||-15.7|
|Silage Harvested Tonnes (DM)||0.00||0.00||0.00||0.00||14.80||0.00||-|
|Total Supplement Feed (per cow kgDM)||42.00||43.80||48.60||63.10||67.30||69.50||+17|
|Total Supplement YTD (Tonnes)||17.00||17.80||19.70||25.60||27.30||28.10||-112.5|
|Nitrogen and Gibberellic Acid - Week ending||10/08/2020||17/08/2020||24/08/2020||31/08/2020||7/09/2020||14/09/2020||Variance|
|kgN applied per ha/% of farm||29.00 KgN/ 41.70 %||0.00 KgN/ 0.00 %||32.70 KgN/ 34.70 %||0.00 KgN/ 0.00 %||0.00 KgN/ 0.00 %||29.50 KgN/ 66.70 %||66.70 %|
|kgN applied YTD (average kgN/ha)||16.90||16.90||28.20||28.20||28.20||47.90||-28.7|
|GA applied (20gm/ha)||0.00||0.00||0.00||0.00||0.00||0.00||-|
|Effluent Applied y/n||Y||N||N||N||Y||Y||-|
|Paddocks effluent applied||3||0||0||0||4||4||+4|
|Application Depth (mm)||18.00||0.00||0.00||0.00||18.00||18.00||-|
|Climate - Week ending||10/08/2020||17/08/2020||24/08/2020||31/08/2020||7/09/2020||14/09/2020||Variance|
|Temperature (ave. °C)||9.92||10.00||13.00||11.30||11.00||10.00||-11.5|
|Soil temperature (ave. °C at 10cm depth)||12.50||11.60||13.00||13.00||13.20||13.20||-8.8|
|Soil Moisture(% at 10cm depth)||33.90||33.70||34.10||34.10||34.70||33.60||+6.6|