Evaluation of distillers dried grains with solubles to partially replace soybean meal in the diet of growing-finishing pigs

Abstract

This study was conducted to evaluate the effect of dietary supplementation with increasing levels of distillers dried grains with solubles (DDGS) on growth performance, nutrient digestibility, and carcass quality of growing-finishing pigs. The experiment was divided into 2 phases (Grower and Finisher) in a 16-week trial. A total of 120 [(Landrace × Yorkshire) × Duroc] growing pigs (BW; 22.02 ± 0.08 kg) were randomly assigned to control (CON) and treatment diets (TRT): CON -basal diet, DDGS 4% for growing pigs and 6% for finishing pigs; TRT1 -DDGS 10% for growing pigs and 12% for finishing pigs and TRT2 -DDGS 15% for growing and finishing pigs. Increasing dietary DDGS supplementation did not cause significant linear or quadratic responses in average daily gain (ADG), average daily feed intake (ADFI) and feed conversion ratio (FCR). Furthermore, DDGS inclusion did not result in linear or quadratic effects on the digestibility of dry matter (DM), nitrogen (N), and digestible energy (E). Backfat thickness (BFT) tended to decrease (quadratic, P = 0.057) at week 16, whereas lean meat percentage (LMP) was unaffected by increasing DDGS levels in the diets. Thus, the addition of increasing DDGS levels (4-15%) to the basal diet showed no adverse effect on the growth performance, nutrient digestibility, and positively affected carcass quality of growing-finishing pigs, suggesting that DDGS (4-15%) inclusion exerted comparable effects to soybean meal, i.e. the main source of protein, thereby reducing feed cost.

Assessment of Quillaja saponin as a feed supplement in maize-soybean-oilseed rape meal-based diet for enhanced growing pig performance

“…The chromium content in the samples was measured using atomic absorption spectroscopy (UV-1201, Shimadzu, Kyoto, Japan). The calculation of apparent total tract digestibility (ATTD) of nutrients was performed using the method described by Biswas and Kim (2022).…”

Effects of Feeding Corn Distillers Dried Grains with Solubles on Muscle Quality Traits and Lipidomics Profiling of Finishing Pigs

“…During alcohol production, the starch in the grain is converted to ethanol and carbon dioxide, which results in the remaining nutrients such as proteins, fats, fibers, and minerals in DDGS being concentrated nearly three times more compared to the original grain [2]. Because of its rich protein content and low price, corn distillers dried grains with solubles is a suitable substitute for soybean meal in pig diets [3]. Schwarz et al [4] observed that adding 20% corn distillers dried grains with solubles to the diet did not affect the growth performance and meat quality of pigs.…”

“…Nutrition levels were calculated by using the tables of feed composition and nutritive values in China (2020, thirty-first edition) Chinese feed database according to the chemical composition of the dietary ingredients 3. Total SFA = [C8:0] + [C10:0] + [C12:0] + [C14:0] + [C16:0] + [C17:0] + [C18:0] + [C20:0] + [C22:0] + [C24:0].…”