Macalister Demonstration Farm Update 564 (6th May 2022)

Milk production is the lowest in five years at the Macalister Demonstration Farm. The feed margin is the lowest in four years.  Hectares being used, and cows being milked, are similar. Amount and type of supplements being fed is similar. So, the main reason for the lower milk and profitability is less grass being consumed, as shown by the table of calculations, and graphs. Grass is nearly always the dominant driver of milk and money.

Fertiliser application is similar to other years.  The grazing rotation (possibly a bit short for now) is similar to most years. Some paddocks have been resown with crops, the crops growing well but probably not making up for the lost growing time, before and after the crop.

The problem seems to be a wet year. It saves irrigation, but wet soils lose or waste nutrient, cause more pugging and therefore weed invasion, and make grass utilisation more difficult. Good drainage is a powerful tool.

A grass residue build-up at wet/muddy grazings makes it even more difficult to get high utilisation at later grazings, a compounding problem.  The cows could be forced to fix the residue, but they will graze some patches far too hard, and milk is lost in the short and long term. An unavoidable residue-build up is best fixed by topping to an even and appropriate height.

FEED MARGIN PERFORMANCE MDF THIS TIME LAST YEAR MDF TEN DAYS AGO MDF THIS TEN DAYS Units
Ten days to date: 10,May,21 30,Apr,22 10,May,22  
Milker graze area 72 68 68 Ha
Milkers 278 270 270 Head
Stocking rate 3.9 4.0 4.0 cows/ha
Average graze rest time 33 31 32 Days
Estm’d pasture consmp’n 27 21 20 kg DM/ha/day
Pasture consum’d per cow 7.1 5.4 5.1 kg DM/cow/day
Pasture growing spend $4.79 $5.00 $5.00 $/ha/day
Estm’d pasture price $176 $235 $249 $/T DM
Conc (incl additives)supp fed/cow 6.3 6.3 6.3 kg DM/cow/day
Conc (incl additives)supp avg price $393 $458 $458 $/T DM
Hay/silage supp fed/cow 2.3 3.4 3.4 kg DM/cow/day
Hay/silage supp price $222 $280 $280 $/T DM
Feed Conversion Efficiency 95 92 92 kg MS/tonne DM
Total feed intake/cow 15.1 14.2 13.9 kg DM/cow/day
NDF Fibre in diet 30.4% 29.4% 29.2% % NDF
Litres/cow 17.2 16.0 15.3 l/cow/day
Fat test 4.64% 4.72% 4.85% %
Protein test 4.00% 3.98% 4.01% %
Milk Solids per cow 1.49 1.39 1.35 kg/cow/day
Milk price (less levies)/kg MS $7.10 $7.26 $7.24 $/kg MS
Milk price (less levies)/litre $0.61 $0.63 $0.64 $ per litre
Milk income/cow $10.57 $10.10 $9.80 $/cow/day
All feed cost/cow $4.22 $5.09 $5.09 $/cow/day
Margin over all Feed/cow $6.35 $5.01 $4.71 $/cow/day
MOAF /ha /day $24.51 $19.88 $18.69 $/ha/day
Farm MOAF per DAY $1,765 $1,352 $1,271 $/day