US - There’s a big difference between coarse grind and fine grind, and it’s not just in our morning coffee. When it comes to grinding grain for livestock feed, especially swine, digestibility and efficiency are influenced by how large the grain particles are. Typically, the finer the grind the better —up to a point.New research by Kansas State University shows commercial laboratories and livestock producers who run their own analyses on grain-particle size can reduce the time it takes to check a sample from 15 minutes down to 10 minutes and get the same result by making a couple of changes to the process.“Grain accounts for a major component and cost in livestock diets,” said Charles Stark, associate professor in K-State’s Department of Grain Science and Industry. The particle size of ground grain influences feed digestibility, feed efficiency, how well it mixes and how well it can be pelleted, so periodic particle-size evaluation is a necessary part of quality feed manufacturing.

　　粗磨與細(xì)磨之間有著天壤之別，而且這種不同不僅僅局限于我們的早間咖啡。當(dāng)談到牲畜飼料的谷物研磨時(shí)，特別是生豬，它的消化率與收益率正被谷物尺寸的大小所影響。通常，谷物研磨越細(xì)越好-在一定程度上。根據(jù)美國(guó)堪薩斯州立大學(xué)進(jìn)行的一項(xiàng)新研究顯示，商業(yè)實(shí)驗(yàn)室和畜牧養(yǎng)殖者在對(duì)谷物顆粒進(jìn)行分析時(shí)是能夠縮短樣品檢查時(shí)間的，不論在此過(guò)程中做任何改變，都不會(huì)影響到最終結(jié)果，并將15分鐘縮減至10分鐘?？八_斯州立大學(xué)谷物科學(xué)與工業(yè)系的助理教授Charles Stark說(shuō)：“谷物是牲畜飲食中飼料成本和成分的主要組成部分。農(nóng)作物的顆粒尺寸影響著飼料消化率、飼料轉(zhuǎn)化效率和谷物的混合以及壓制效果，所以定期評(píng)估顆粒尺寸對(duì)飼料生產(chǎn)質(zhì)量是必需的。”