Chemical and nutritional characteristics of different types of DDGS for ruminants

Abstract

In this study, different types of cereal grains (maize, wheat, triticale), and their respective distillers dried grains with solubles (DDGS: DDGSM, DDGSW, DDGST) were used. Their effects on parameters expressing nutritional value for ruminants were assessed. The chemical composition of the DDGS was significantly differed (P<0.01), similarly as that of the cereal grains. The DDGS from maize was the highest in fat ( kg -1 DM). The DDGS were three times higher in PDIN values than the original grains (P<0.01). DDGSM had lower in situ effective CP degradability (46.5%) than DDGSW (58.5%) and DDGST (76.8%), but the highest and most stable intestinal digestibility (ID) of rumen undegraded CP (94.3%). The most variable intestinal digestibility was found in DDGSW samples (79.6%-92.2%). The acid detergent insoluble CP (ADICP) content (% from total CP) was significantly higher in wheat and triticale DDGS than in the original grains. There were significant plant effects on fat, ME, NEV, ADICP (P<0.01), ADF, and NADIP (P<0.05). We can conclude that all types of DDGS are a good source of CP and energy for ruminants.

Nutrient content and nutrient availability of sorghum wet distiller's grain in comparison with the parental grain for ruminants

“…The comparison of the energy values for distiller's grains with their parental grains is controversial. Some studies have reported that the energy content of distillers' grain reaches or is higher than the energy content of the parental grain, whereas other studies show opposite results . These differences can be a result of the different industrial production processes and the method used to estimate energy.…”

“…Prolamins have a variable percentage of monomeric proteins and proteins highly cross‐linked by disulfide bonds . A moderate to high content of proteins linked by disulfide bonds may explain the lowest value of soluble protein of SG in comparison with other cereals grains; therefore, the low SCP in WSDG is expected. Changes in the content of CP sub‐fractions in distillers' grains may be caused by the addition of nitrogen componentsand/or temperature during the ethanol production process.…”

“…To the best of our knowledge, no values for ID of UCP of sorghum wet distiller's grains have been reported. Higher variability and greater values of ID of UCP were observed in corn dried distiller's grain plus solubles (59-77%) by Kleinschmit et al 35 and in corn, wheat and triticale dried distiller's grain plus solubles (79.6-95.4) by Cherevoká et al 30 The high value of ADICP content for WSDG in the present study can be explained by the heat applied during the ethanol process: this causes the formation of complexes between kafirins and other components, reducing the protein digestibility. 33,36 The effect of ADICP on ID of ruminal UCP of distillers' grains has been controversial.…”

In situ ruminal degradation of amino acids and in vitro protein digestibility of undegraded CP of dried distillers’ grains with solubles from European ethanol plants

“…The National Research Council (NRC, 2001) model assumes a UDP digestibility of 80% for DDGS and the UK Feeding System 90% (AFRC, 1993) for all feeds, whereas the German Protein System assumes a UDP ID of 85% for all feedstuff (Gesellschaft für Ernährungsphysiologie (GfE), 2001). Chrenková et al (2012) determined the ID of five wheat-DDGS, with the mobile bag procedure ranging from 79.6% to 92.2%. The French protein system uses a value of ID of UDP of 85% for wheat-DDGS (Sauvant et al, 2004).…”

Novel coproducts from corn milling and their use in ruminants’ nutrition

“…The emergence of two new coproducts on the feedstuffs market triggered a series of specific studies. Such studies may refer to the influence of the raw material, e.g., sorghum or wheat instead of corn (2,55), but only studies on corn were considered for the present review.…”