SAVE THE DOLLAR YOU INVEST: OPTIMISED RAW FEED MATERIAL PRESERVATION THROUGH ACTIVATED PROPIONATES Another year of cheap & plentiful inputs?
by Kai-J. K端hlmann
Ramakanta Nayak of Nutreco Asia Co. Ltd., Bangkok, Thailand
Paul Koolen of Trouw Nutrition Selko, Tilburg, Netherlands The use of organic acids in feed preservation has now been accepted globally in agricultural sectors as a raw feed material.
Agricultural market trends Global contemporary animal production quadrupled during the past 50 years and totaled with 308 million MT of meat produced in 2013, with Asia as the main animal production center. The population of the world is steadily growing, with a population of 9.1 billion expected by 2050. The majority of these people are in developing countries. As growth continues worldwide urbanisation is expected to reach 70 percent by 2050 compared to 49 percent today. In order to feed the larger and more urbanised population, global food production needs to increase by about 70 percent with an increased cereal production to about 3 billion tons (from 2.1 billion today) and an increase in annual meat production to 470 million tons, respectively (FAO 2009). However, declining growth rates of major cereal crops globally challenge agriculture to develop new technologies to compete with natural resources such as land and water, climate change and habitat preservation. International trade of raw feed materials intensifies to ensure food security. To manage these challenges, political combined with professional networking is required. In short, the agricultural industry needs to produce more from less land and with fewer hands. Mould prevention in animal feeds by organic acids Organic acids as forage and grain preservative fundamentally contribute to feed hygiene by suppressing the growth of moulds, yeasts and bacterial pathogens, thus allowing a more efficient use of feed resources. The use of organic acids in feed preservation has now been accepted globally in agricultural sectors as a raw feed material. Finished feeds will have better nutritive quality and thereby lead to healthier conditions and the improved growth of farmed animals, resulting with greater economic efficiency. However, due to humid weather, high temperatures or tropical monsoon rains, huge amounts of raw feed materials rot away due to often insufficiently managed or available storage conditions. Global food waste amounted worldwide to 1.3 billion tons in 2013. This is equivalent to one third of the annual global food production (FAO 2013) causing severe economic losses and environmental harm. In addition to this, if decayed grains are harvested they can infest new supplies, intensifying mould and mycotoxin development. About 54 percent of global food waste occurs during production, post-harvest handling and storage, contributing to about 870 million people daily staying hungry. While the annual grain wastage in Australia is estimated to account for only 0.75 percent, 3.2 million tons (16 percent) had been recorded for Pakistan. Annually India wastes 21 million tons of wheat, which is equivalent to the entire annual wheat production of Australia. At the 1996 World Food Summit the FAO strategic goal was adopted in an attempt to eliminate world hunger in developing countries by 2015. Even a 10 percent decrease in global raw feed material waste through professionally engineered storage would make a significant contribution. Moulds and mycotoxins in feed can cause weak animals to fall ill of metabolic or reproductive diseases and result in insufficient growth performance. Non-corrosive preservative products that are easy to handle, yet guarantee the highest levels of grain preservation are needed. Propionic acid combined with benzoates and propionates found wide market acceptance as did propionic acid mixed with its buffered propionates and weak organic (e.g. formic, acetic, lactic) acids. Further innovation lead to the micelle technology, wherein activated propionates are being formed and kept in higher density.
86 | March 2016 - Milling and Grain