A Sustainable Livestock Feed Solution during Drought: Sugarcane Silage with Additives
H.S. Shwetha
Veterinary College, Athani-591230, India
Veena, M. P. *
Veterinary College, Hebbal, Bangalore, India.
Cherry D Miranda
Veterinary College, Athani-591230, India
Paramesha, S. C.
Veterinary College, Athani-591230, India
Ajitha Kumar, H. M.
Veterinary College, Athani-591230, India
Sushanth, H.
Veterinary College, Athani-591230, India
Rajendran, D.
ICAR-NIANP, Audogodi, Bangalore, India.
*Author to whom correspondence should be addressed.
Abstract
The increasing demand for sustainable and nutritionally efficient livestock feed has prompted significant interest in unconventional silage sources and enhancement techniques. Belagavi district in Karnataka is a major hub for sugarcane cultivation, generating significant quantities of sugarcane tops as agricultural residue. Traditionally under-utilized or discarded sugarcane tops represent a valuable biomass resource that can be strategically repurposed for livestock feeding, especially during summer months when green fodder availability is critically low. Sugarcane, with its high biomass yield and abundant fermentable sugars, offers promising potential as a silage crop. The sugarcane top contains oxalate as a deleterious factor which is also called as ‘anti-nutritional’ factor. However, its limitations, such as low crude protein and phosphorus content, necessitate nutritional enhancement to improve its overall feed value. This review explores the potential use of sugarcane tops as an alternative silage feed for ruminants, with a focus on improving their nutritional profile. The integration of urea promotes microbial efficiency during ensiling, while phosphorus addition supports mineral balance essential for animal health. This paper reviews current literature and practical case studies relevant to sugarcane top silage, addressing benefits, nutrient dynamics, microbial profiles, animal performance challenges, and the potential impact on livestock productivity. This approach addresses the critical need for consistent forage availability, particularly in regions prone to climatic extremes, by transforming a readily available agricultural byproduct into a high-quality, fermentable feedstuff. This review highlight a sustainable, cost-effective approach to fodder management, reducing agricultural waste and supporting sustainable livestock farmers during seasonal feed shortages by maximizing the utility of sugarcane in semi-arid regions.
Keywords: Sugarcane tops, silage, ruminants, summer feeding and nutrient enrichment