Taking fish silage to the livestock market

A team from Lincoln University is working with local Canterbury-based United Fisheries to develop an innovative low energy input and cost-effective process to produce fish silage. The research is investigating the efficacy and practical implications of using fish silage to reduce methane emissions and nematode burdens in the sheep and cattle industry.

United Fisheries uses damaged fish and by-products of the filleting process to manufacture fish silage, which is stable at room temperature for extended periods and retains the valuable lipid and protein content of the original fish material. Early results from the research has shown that fish oil in the diet of dairy cows can reduce methane production by rumen microbes and can have a positive health effect on the fatty acid composition of milk.