Wednesday, 14 April 2021 07:55

Changing feeding times can reduce emissions

Written by  Staff Reporters
Dr Jim Gibbs, Lincoln University. Dr Jim Gibbs, Lincoln University.

New research headed by Lincoln University finds that delaying when animals are fed means they will urinate at night in colder temperatures.

The cooler temperatures mean less nitrous oxide, a greenhouse gas, is produced from the nitrogen in the urine.

Co-author Dr Jim Gibbs, senior lecturer at Lincoln University in livestock health and production, said understanding the relationship between time of feeding and subsequent nitrogen excretion may lead to better farm management strategies to reduce greenhouse gas output.

"Animals fed in both the morning and afternoon excreted approximately 60% of their urine volume and total urea within 12 hours of being offered fresh feed.

"This work sugegests that shifting animals to new pasture late afternoon would result in more urinary notrogen being deposited at night when lower ambient temperatures should lead to reduced volatisation and lower N2O production."

"This is good news for the dairy industry, as South Island farmers already use evening shifts for fresh feed, to better judge pasture use in daylight hours. This work shows the value of evaluating management of the whole production system to improve farming outcomes."

The work was funded by the Ministry of Primary Industries Sustainable Land Management and Climate Change (SLMACC) Fund.

More like this

Lynnette Hudson Named 2026 NZ Winegrowers Fellow

Lynnette Hudson's 30-year obsession with Pinot Noir was sparked working vintage in Burgundy, seeing how subtle changes in terroir were expressed in the glass. It was, she says, "an elightening moment in every way".

Andy Macfarlane Joins AgriZeroNZ Board

Canterbury farmer Andy Macfarlane has been appointed to the board of AgriZeroNZ, the public-private partnership designed to accelerate the development and deployment of emissions reduction tools for New Zealand farmers.

Featured

Ballance Urges Farmers to Plan Ahead for El Niño

With forecasters advising El Niño conditions will develop through winter and strengthen into spring and summer, Ballance Agri-Nutrients is encouraging farmers and growers to think ahead about nutrient planning and be prepared to work around challenging weather conditions.

Why 'Fork to Farm' Beats Farm to Fork, Expert Says

In the past, much has been made of the concept of farm to fork, but an Australian expert in food science and marketing with experience in the dairy industry, Dr Angeline Achariya, says the reverse of this slogan is critical to win modern day consumers.

National

Machinery & Products

» Latest Print Issues Online

Milking It

Domestic Focus

OPINION: After hogging the media limelight for telling a NZ Chinese MP to "go back home", Winston Peters has decided…

A No-Brainer

OPINION: With fuel prices soaring, one would have expected most farmers to be reclaiming excise duty on petrol.

» Connect with Dairy News

» eNewsletter

Subscribe to our weekly newsletter