Production 1.8 KgMS/cow/day
Cows in milk 543
Growth 70 KgDM/ha/day
Farm cover 2398 KgDm/ha
Round length 27 days
Supplements fed 1.5KgDM/cow/day
Ave. soil temp. 15.9 ⁰C
6 week in-calf rate 66%*
*See Mating section below for more details
Feed wedge 23 Feb:
More details: herds and feed
Main herd: 478 M.A. cows, milked twice a day
Small herd: 37 lower BCS cows + 28 lames, milked once a day
Latest BCS figures: average 4.3, as at 23 February 2021
4mm rainfall this week. 4 days irrigation on North block, 3 days irrigation on South block.
Soil temperature for the last 2 weeks:
Soil moisture for the last 2 weeks (measured at North block this week):
Average pasture cover: 2,398 KgDM/ha
Pre-grazing cover demand for pasture-only diet: 3,319 KgDM/ha for 18.5 KgDM/cow/day on 28 day round (5.71 ha/day)
We fed out some balage this week (weekly average 1.5 KgDM/cow/day) to help extend round length heading into Autumn.
Still very high clover content on farm.
We are now following the cows with N at 25 KgN/ha, after a break in N application in January.
R2 heifers were preg tested on 17th December, with 144 out of 165 confirmed pregnant in the first 5 weeks (87%).
Bulls were removed from heifers 19 December, for a total 10 weeks of mating.
Milking herd mating
Preg Test on 5th January confirmed 66% 6 week in calf rate for cows in milk, with 19% empty.
The heifers suffered from an outbreak of severe respiratory disease in December which dragged on for several weeks. They presented with coughing in a high percentage of the cohort, several lost weight and went off their milk, about 6 were dried off and 3 needed to be destroyed. These 3 were all necropsied and samples sent to Gribbles. The initial tests for IBR were all negative; however culture of the lungs from a dead cow revealed Histophilus somnus. The histopathology findings on the lungs were also typical of H. somnus. MPI are interested in this case because H somnus seems to be an emerging pathogen in South Island dairy herds and LUDF is now about the 5th herd presenting with this syndrome. The severity of this condition in the LUDF herd would account for the disappointing 6 week in-calf rate in the two year olds.This resulted in 27% of our two year olds being empty, which has considerably impacted the overall herd in-calf rate.