Sunday, April 21, 2024

Right forage in the right place

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Ngahere Agriculture is a four-way equity partnership business running a 615ha effective lamb breeding and finishing farm in eastern Wairarapa. Specialist finishing pastures are a key part of its operation, as delegates on a New Zealand Grassland Association conference field trip in November were told. “We’ve done 210ha of forage development,” Paul Oliver, one of the four equity partners in the business explained. “We’ve tried to find the best class of forage and use it in the right place.” Plantain and clover is used on rolling country and pure legume, usually red clover, on flats close to the woolshed where stock can be closely monitored. “It’s the Ferrari of the business.”
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Italian ryegrass is used as a break between the legume mixes. Like Beetham Pastural, often they use broadcast establishment from truck or helicopter in spring, but “almost always direct drill in autumn”.

Over the past five years, 270ha of the 615ha effective property has gone into high-quality forage primarily for lamb and cattle finishing.

Lambs from a 2500-ewe flying flock – see sidebar below  are weaned at 55-75 days with the ewes culled late in November.

Their 3750-odd lambs are finished along with 3000-4000 summer trade lambs and 3000-6000 autumn trade lambs, half of which are wintered.

With the help of an auto drafter, lighter lambs start on hill country at the back of the property, move on to plantain and clover and finish on the red clover.

“The red clover is a step above in terms of its ability to put weight on stock. It’s 20% over plantain and clover – if we’re doing 270g a day on plantain and clover, the red clover will be at 320g a day and there are phases where it genuinely does 400g-plus a day.”

While it can be “touchy to establish” and requires “a bit of faith, particularly in the first winter”, they’ve also found it’s lasting longer than anticipated.

“We went into it thinking it would be a one-year crop, then it rolled into a two-year and our oldest paddock is four  years now.

Ngahere Agriculture managing director Andrew Freeman in red and annual clover.

Ngahere Agriculture buys 2500 lighter cull-for-age ewes every year in January, feeds them well and treats with Ovastim for mating from April 1. Scanning has ranged from 190-207% with 148-155% lambs weaned at 55-75 days and averaging 32-34kg at 90 days.

Triplet and lighter twinning ewes lamb on legumes – better-condition twinning ewes go on hill or medium-rolling country, and singles lamb on rolling country on rotation near the woolshed ready to have a triplet mothered on.

The triplet taken for mothering is generally one of the strongest, if they’re an uneven set, and removed one to two days after birth.

It will be paired with another triplet lamb and put on to a ewe that had a single and hasn’t seen a lamb since the previous day.

“We put the [foster] ewe that had the single in the shed overnight with no lamb then put a pair of triplets or singles on her,” Paul Oliver’s business partner, Andrew Freeman, said.

Experience has shown there’s no problem if a ewe happens to get her own single lamb back.

“The key is that she’s not seen a lamb for the night and all of the lambs have rested in a warm straw pen and are raring to go.”

Ram harnesses restrain the ewe initially while lambs suckle, then the new twin families are monitored in mixing pens. A day later they’re walked out slowly to the “high-octane” red clover.

“This year we transferred 400 new twin sets like that and the bond was as strong as any twin lambed naturally out in the paddock. We’re consistently docking 190-195% from our transferred twins.”

They calculate the cost to mother-on each pair is $12-$20, depending on the number handled each day because the cost is mostly labour, leaving a margin of $55-$65/triplet lamb transferred.

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