WINTER BONUS MAGAZINE 2025

The silage dilemma! Is it worth the effort and investment? Danie van Wyk - Technical Advisor: Extensive Ruminant & Dairy Silage is an essential component of livestock farming in South Africa, providing a reliable and cost-effective feed source. This is a short explanation of the benefits of silage, including its role inmaintaining feed quality, reducing costs, and ensuring year-round feed availability. Additionally, we examine silage productionmethods and the use of inoculants to optimise fermentation. Silage, whether made from grass, sorghum, maize, or other crops, plays a crucial role in livestock nutrition. Farmers or silage producers are enabled to preserve and secure a feed supply throughout the year using the following factors: • An anaerobic environment. • Lactic and acetic acids, which are produced by lactic acid bacteria fermenting the sugars from the forage. • A drop in pH, which is a result of the acids produced. Silage is of great value to the farmers, considering its economic and nutritional benefits. Silage is created by compacting the forage/crop to remove oxygen and then sealing it in airtight conditions. Proper compaction, minimal ground contamination, and effective protection against oxygen will ensure optimal fermentation, which will result in good quality silage. Successful fermentation will preserve the dry matter content while maintaining nutritional value and palatability. The economic and nutritional benefits: The ensiling process requires effort, but offers long-term benefits, including: • Preserving forage and its nutrients during wet seasons for use in dry periods or during feed scarcity. • Forages or crops, if ensiled successfully, can be stored over very long periods. • Reduction in input costs compared to purchasing commercial feed or hay. • Utilisation of damaged crops (e.g., due to drought or hail) for silage production. • Cost-effective feed alternative that supports livestock wellbeing and productivity. • Less wilting time in comparison to making bales (grass silage) – less risk of inclement weather damaging forages. • Crops are ensiled at a high moisture content, which means the crops can be ensiled much earlier, reducing the risk of inclement weather. • Good quality silage will provide animals with nutritious, highly digestible and palatable feed to be used in various feeding strategies. When, why, and how? The when, why, and how to ensile is summed up in five C’s: Winter 2025 BONUS www.agribonus.co.za 28