How to Minimise Feed Loss From Storing Round Bales Outside

Storing hay bales outside (or wrapped silage) can be practical, cost effective and a way to free up shed space. But, as with many choices on the farm, there’s a catch: without proper care, outdoor storage of bales can lead to significant nutritional and dry matter (DM) losses, especially in poor weather conditions.

Here’s how to protect your feed and get the most from every outside bale.

Bales stored on the flat end generally keep their shape better and shed water more effectively.

• Single layer stacking is ideal. If you need to stack bales higher, avoid placing wetter or damaged bales at the bottom. They can easily collapse, compromising your entire stack.
• Side on pyramid stacking often works better if you need to stack vertically. Ensure bales are on an even surface and secure the base layer with chocks or supports. And be aware: the bottom bales may become compressed, making them easier to burst, harder to feed out and compromising feed quality.

Additional tips for stacking:

• Orientate bales north-to-south, not east-to-west, to maximise sun exposure and ensure even drying of wet hay bales.
• Keep rows properly spaced. Effective round bale storage requires having sufficient space between rows so bales can be moved easily when needed. Bales should also be inspected regularly for any signs of perforations and stack collapse (the HSE provides further bale handling guidelines).

Fodder bales left in direct contact with the soil tend to “wick” moisture up into the hay. To prevent this, bales should be stacked in a well drained area.

The best way to store hay outside is to place your bales on a layer of gravel, crushed rock or on pallets. This also allows air to circulate more effectively around the bales.
For silage bales, high quality bale wrap is essential. This prevents puncturing,  therefore maintaining an oxygen free environment for proper fermentation.