ARTICLE FEED & ADDITIVE MAGAZINE November 2025 91 0,11 0,16 0,18 0,31 0,53 0,73 0,73 1,10 0,0 0,2 0,4 0,6 0,8 1,0 1,2 Corn NE Finisher - NE Grower (MJ/kg) Wheat Barley Rapeseed Meal Sunflower Meal Sugar Beet Pulp Soy Hulls Soybean Meal rich in starch or fat (corn, sorghum, soybean) compared with fiber-rich ingredients (sunflower meal, beet pulp, soybean hulls). Formulating based on this criterion allows better utilization of fiber-rich coproducts during the finishing phase, yielding an economic advantage of €0.80–1.00 per ton of feed, depending on the diet’s net energy level. It also helps reduce the environmental footprint of feed, cutting greenhouse gas emissions by about 1.4% (kg CO₂ equivalent). PRECISE DETERMINATION OF PIGS’ NUTRITIONAL REQUIREMENTS Accurately estimating the nutritional requirements of fattening pigs is a cornerstone of precision feeding, ensuring an optimal match between nutrient supply and animal needs. This estimation can be achieved through performance analysis to identify feed intake patterns and growth potential. Significant variability exists between genetic lines, as well as within populations. At Techna, experimental trials are conducted to determine performance potential according to genotype and to assess the impact of nutritional modulation on zootechnical responses. The goal is to precisely understand the interaction between genetics potential and nutrition. For instance, pigs from two genetic lines were fed three different lysine digestible levels (high, medium, low) ad libitum from 30 to 120 kg. Genetics had a major influence on performance, with differences of 86 g/day in average daily gain (ADG) and 0.15 points in feed conversion ratio (FCR), and different lysine-to-net energy ratios to achieve optimal efficiency depending on genotype. ConseFigure 1. Energy differences according to raw materials Photo: Techna
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