How can sheep farmers reduce carbon emissions?

1. Complete regular carbon audits using a reliable carbon calculator

Completing farm carbon audits on an annual basis will help to establish a carbon footprint baseline. This will help identify any issues which could be contributing to on-farm emissions and provide a pathway to implement changes that could help futureproof farm businesses.

A farm’s carbon footprint can be measured using a reliable carbon calculator.

2. Look at flock management while maintaining a high level of production efficiency

Careful and considered flock management will allow farmers to maintain a high level of production efficiency as a healthy animal is often a much more sustainable animal.

Greater production efficiencies on-farm can be achieved by:

• Reducing age at first lambing
• Increasing lambing rate
• Reducing lamb losses
• Enabling high lamb growth rates

3. Improve the quality and utilisation of forage

Forage is a crucial element in livestock diets which can greatly influence the performance of breeding, growing and finishing sheep. Improving both the quality and utilisation of forage is critically important and can help to promote the health, and subsequent performance, of an animal.

Forage quality can be improved by:

• Harvesting early when conditions are right
• Increasing grazing frequency
• Decreasing regrowth intervals where appropriate

4. Reduce the use of artificial fertiliser

Reducing the use of artificial fertiliser is another way sheep farmers can reduce their carbon footprint.

Instead of relying on artificial fertilisers to produce high quality forage, farmers can maintain or enhance sward productivity by, for example, including legumes in pasture mixes. They can also look at ways to promote soil health through effective grazing management.

5. Consider use of controlled release and protected urea fertilisers

Farmers should consider the use of controlled release fertilisers and protected urea fertilisers if they are looking to reduce emissions.

Applications of manure and fertiliser should be timed to optimise plant nutrient uptake and take account of soil nutrient status. Soil testing will be essential to the optimisation of this.

6. Look at adjusting livestock diets

Looking more closely at the overall diet of an animal and how feed is being produced can be a good idea if you are looking to reduce emissions as there are a wide variety of feed and nutrient options available for sheep.

For example, farmers can increase starch and concentrate proportions in sheep diets, within recommended guidance levels, to reduce CH4 production per unit of feed intake.

In addition to reducing emissions, depending on baseline diet and management, this strategy may also support an increase in liveweight gain.  Wider environmental considerations associated with the carbon footprint of feed components and farm nutrient balance, such as the emissions cost of production, should be considered, if farmers are looking to reduce carbon footprints.

7. Focus genetic improvement on component traits

Finally, genetic improvements can help reduce emissions from breeding flocks if focused on component traits, such as productivity relative to ewe size, feed efficiency, longevity, health, growth and carcass traits. Such information should be part of farm decision making now, to deliver long-term emission reduction.

To find out more about reducing emissions in sheep flocks, read our practical guide here.