Wednesday, 24 April 2019 09:55

Is reducing cow numbers the answer?

Written by  Peter Burke
John Roche. John Roche.

The argument over whether New Zealand has too many cows is a regional issue, not a national issue, according to Ministry of Primary Industries’ chief science advisor, John Roche.

Speaking to Dairy News at the recent Agricultural Climate Change conference in Palmerston North, Roche stated that it’s too emotive to talk in general terms of there being too many cows in NZ. He says all regions are different and it’s a case of decisions being made at that level rather than taking the blanket view that NZ has more cows than it can effectively run.

But Roche says that he has concern about the cost of marginal milk. 

“Some of our milk is now produced from imported feeds and analysis done by me and others over recent years suggests that this milk is either unprofitable or poorly profitable. 

“There are also externalities that come with it. The more cows we feed or the more the cow eats, the greater their greenhouse gas footprint and so that is one of the externalities we need to take into account,” he says.

Roche says the issue of whether lowering cow numbers in NZ would lead to a drop in total milk production is being looked at by government and industry representatives. But he says other factors must also be taken into account such as any affect this may have on the entire rural fabric of the country. 

“NZ is built around the primary sector and when you start pulling one lever to make an adjustment in the primary sector this may have an unintended consequence in other parts of the sector. The whole issue of cow numbers is what I call a wicked problem because there isn’t a simple solution. A solution will likely come as a result of further dialogue and good partnerships between industry and government,” he says.

One of the factors relating to the ‘too many cows’ issues is land use. In the last 15 years, there has almost been a race to convert land to dairying and it is arguable whether many of these conversions have been in the best interests of cow and country. 

Roche says some land use changes in the past may not have been the best. He says determining the best use for land is a significant part of the discussions taking place between government and industry.

More like this

Cultivating the right way

Cultivation of paddocks is common on farms at this time of year. It’s also a time when local storms may occur, adding substantial risk to an important farming practice.

Freshwater plan a killer blow

A national limit on dissolved nitrogen would “essentially eliminate” intensive agriculture in the Selwyn Waihora catchment, says Environment Canterbury chief scientist Dr Tim Davie.

Tree protest this week

The protest group ‘50 Shades of Green’ is organising a march on Parliament this week to try and stop good farmland being covered in pine trees.

Hort export figures challenged

Horticulture's export revenue growth is likely to be about 10% in the current financial year – not the 3.8% forecast by the Ministry for Primary Industries.

» The RNG Weather Report

Featured

Soil moisture: no more looking over the fence

Farm manager Bryan Mitchell describes as brilliant the SCADAfarm systems that allow him to remotely monitor and manage the irrigation of his 300ha of leased grazing land near Kirwee.

 

Separation gives constant result

Effluent separation offers a number of unique advantages, and opportunities that other systems don’t offer, says farm equipment manufacturer Rakaia Engineering Ltd (REL) Group.

Cultivating the right way

Cultivation of paddocks is common on farms at this time of year. It’s also a time when local storms may occur, adding substantial risk to an important farming practice.

» The RNG Weather Report

» Latest Print Issues Online

Milking It

Angry as usual

The usual culprits are angry at hearing last week that the Government and the agri sector will work together to…

Vladimir the dairy farmer

Russian President Vladimir Putin is a master tactician in taking advantage of international conflicts.

» Connect with Dairy News