PSVII-6 - Effects of Hydroponically Sprouted Cereal Grains on Feedlot Performance, Blood Serum Chemistry, and Apparent Nutrient Digestibility in Beef Cattle

Abstract: Recent technological advancements in the local chain agricultural technology sector have produced automated systems that overcome pitfalls of traditional forage production. With significantly altered nutrient composition when compared with typical forages, research investigating the effects of hydroponically sprouted grain (HG) on feedlot growth and performance is needed. Angus steers (n = 40) averaging 274 kilograms body weight were randomly assigned to one of four pens in replicated pen experimental feedlot setting. Treatment pens were balanced for incoming weight, age, and genetic background to ensure uniformity throughout the experiment. Dietary treatments were randomly assigned and delivered continuously for an eight-week comparison period; diets were balanced for metabolizable energy, fiber, and crude protein content with 15% inclusion of HG administered in the treatment group. Nutrient digestibility was assessed through weekly manure sampling. Daily rate of gain, feed conversion ratio, and cost of gain was assessed through monthly replicated (n = 3) weight evaluations. Blood serum chemistry was evaluated through individual animal blood serum samples collected from the lateral tail vein. Multiple variables measured indicated positive and statistically significantly (p < 0.05) changes resulting from the inclusion of HG (Table 1). On a percentage basis, daily rate of gain and dry matter intake improved 12% and 11%, respectively. Marginal trends (p < 0.20) in nutrient digestibility were noted and blood serum metrics associated with nutrient bioavailability and rumen health were positive. Results highlight the potential feeding value of HG and automated production systems as a novel agricultural technology solution.