Evaluation of wheat or corn dried distillers’ grains with solubles on performance and carcass characteristics of feedlot steers

Abstract

. 2010. Evaluation of wheat or corn dried distillers' grains with solubles on performance and carcass characteristics of feedlot steers. Can. J. Anim. Sci. 90: 259Á269. A study was conducted on crossbred steers (n0275; 376924 kg) to evaluate performance and carcass quality of cattle fed wheat or corn dried distillers' grains with solubles (DDGS). The control ration contained 86.6% rolled barley grain, 5.7% supplement and 7.7% barley silage (DM basis). The four treatments included replacement of barley grain at 20 or 40% of the diet (DM basis) with wheat or corn DDGS. Steers were slaughtered at a common end weight of 645 kg with 100 steers randomly (n 020 per treatment) selected for determination of the retail yield of sub-primal boneless boxed beef (SPBBB). Data were analyzed as a completely randomized design using pen as the experimental unit. Feeding increasing levels of wheat DDGS led to a quadratic increase in dry matter intake (DMI) (PB0.01), whereas increasing levels of corn DDGS led to a quadratic decrease in DMI (P00.01). Average daily gain was not influenced (P00.13) by feeding wheat or corn DDGS, but cattle fed corn DDGS exhibited a quadratic increase (P00.01) in gain:feed. As a result, a quadratic increase (P B0.01) in calculated NE g of the diet was observed as corn DDGS levels increased. A linear decrease (P00.04) in days on feed (169, 166 and 154 d) was noted when increasing levels of wheat DDGS (0, 20 and 40%) were fed. Dressing percentage increased in a linear fashion with wheat DDGS (P B0.01) inclusion level and in a quadratic fashion (P 00.01) as corn DDGS inclusion level increased although other carcass traits were not affected (P0.10) by treatment. The results indicate that replacement of barley grain with corn or wheat DDGS up to 40% of the diet (DM) can lead to superior performance (improved gain:feed or reduced days on feed, respectively) with no detrimental effect on quality grade or carcass SPBBB yield. Incidence des extraits solubles secs de distillerie de ble´ou de maı¨s sur le rendement et les parame`tres de la carcasse des bouvillons d'engrais. Can. J. Anim. Sci. 90: 259Á269. Les auteurs ont effectue´une e´tude sur des bouvillons hybrides (n 0275; 376924 kg) en vue d'e´valuer le rendement et la qualite´de la carcasse des animaux engraisse´s avec des extraits solubles secs de distillerie (ESSD) de ble´ou de maı¨s. La ration te´moin contenait 86,6 % de flocons d'orge, 5,7 % de supple´ment et 7,7 % d'ensilage d'orge (matie`re se`che). Les quatre traitements incluaient la substitution de 20 % ou de 40 % d'orge (matie`re se`che) par des ESSD de ble´ou de maı¨s. Les animaux ont e´te´sacrifie´s quand leur poids atteignait 645 kg et on en a se´lectionne´une centaine au hasard (n 020 par traitement) pour de´terminer le rendement au de´tail de boeuf de coupe secondaire de´sosse´en caisse carton (BCSDCC). Les donne´es ont e´te´analyse´es comme si elles e´manaient d'un essai comple`tement randomise´ayant l'enclos pour unite´expe´rimentale. La concentration croissante d'ESSD de ble4To whom corres...

Influence of corn-dried distiller’s grain with solubles on growth performance and blood metabolites of Awassi lambs offered a concentrate diet

“…Moreover, Gibb et al (2008) have reported that ADG was similar among feedlot cattle that were fed finishing diets containing DDGS at 200, 400 or 600 g/kg DM DDGS replacing barley grain. In contrast to our results, several studies have reported improvements in ADG and feed efficiency in beef cattle fed DDGS (McKinnon and Walker 2008;Black 2009;Walter et al 2010). Felix et al (2012) observed that ADG was improved when feedlot lambs were fed DDGS at 200 g/kg; whereas no significant differences were observed when included at 0, 400, or 600 g/kg DM.…”

Replacing canola meal as the major protein source with wheat dried distillers’ grains alters omasal fatty acid flow and milk fatty acid composition in dairy cows

“…This contradicts our observations from the present study, if we assume that the FA composition of omasal digesta is reflective of that of ruminal digesta. In the study of Aldai et al (2012), C18:2n-6 intakes [calculated from dietary C18:2n-6 contents and DM intakes that were reported by Walter et al (2010), companion paper to Aldai et al (2012)] of cows fed W-DDGS ranged from 159 to 205 g d (1 , whereas C18:2n-6 intakes in cows fed W-DDGS in the current study ranged from 335 to 466 g d (1 . A possible explanation for these discrepant results could, therefore, relate to these differences in C18:2n-6 intakes as more substrate was available for ruminal BH in the current study when compared with that of Aldai et al (2012).…”

Use of Wheat Distiller Grains in Ruminant Diets

“…In barley grain-based inishing diets, no protein supplement is necessary since the protein requirement is met (12%). Feed consumption was either linearly increased [14,25], linearly decreased [26] or did not difer [13] with increasing the inclusion rate of wheat distiller grain from 10, 20, 40 to 60%; however, growth performance and feed eiciency were overall not afected with increasing the replacement of grain with wheat distiller grain. These results indicated that wheat distiller grain can be successfully incorporated to substitute a portion of grain within inishing diets with minimal or no adverse impact on catle growth performance.…”

“…These results suggest that replacement of barley silage with wheat distiller grain cause favourable changes in the faty acid proile of meat such as omega-3 faty acids in beef. Similarly, Walter et al [25] included 40% wheat distiller grain in inishing diets and observed no adverse impact on carcass quality or sub-primal boneless boxed beef yields. Animals fed wheat distiller grain included at 20 or 40% produced backfat, yield, ribeye area and marbling scores consistent with barley-inished catle with no change in meat quality (chemical composition, cooking time, cooking loss, tenderness, drip loss, colour) or diferences in sensory tests (taste, smell, sight) [29].…”