Influence of feeding enzymatically hydrolysed yeast cell wall + yeast culture on growth performance of calf-fed Holstein steers

Abstract

One hundred and sixty-eight crossbred steers (133 ± 7 kg) were used in a 336-d experiment to evaluate the effects of enzymatically hydrolysed yeast cell wall plus yeast culture (EHY) supplementation on growth performance and carcass characteristics. Treatments consisted of steam-flaked corn-based diet supplemented with 0, 195, 390 or 585 mg/kg EHY. Supplemental EHY enhanced overall (336-d) dry matter intake (DMI, P < .01), averagde daily gain (ADG, P = .04), and final carcass weight (P = .04). Responses were maximal (quadratic effect, P ≤ .02) at the 195 mg/kg level of EHY supplementation. Feed intake enhancements were observed throughout each 112-d period of the study. Improvements in ADG were largely the result of increased DMI, as gain efficiency and estimated dietary net energy (NE) were not affected by EHY supplementation. Effects of supplemental EHY on other carcass measures were not appreciable (P > .20), except for a slight lowering (0.7%, P = .04) in carcass yield. We conclude that throughout the growing-finishing period, supplemental EHY will enhance ADG, resulting in marked increases in final carcass weight. This effect is due to consistent increases in DMI, as supplementation did not affect gain efficiency or estimated dietary NE. ARTICLE HISTORY

Evaluation of an active live yeast (Levucell Saccharomyces cerevisiae, CNCM l-1077) on receiving and backgrounding period growth performance and efficiency of dietary net energy utilization in low health risk beef steers1

“…There were no appreciable differences detected for performance-based dietary NE m ( P = 0.70) or NE g ( P = 0.59) in the present study. This is similar to what others have reported in response to the use of a yeast culture-based product in shipping-stressed calves and growing–finishing Holstein steers ( Zinn et al, 1999 ; Salinas-Chavira et al, 2018 ). Likewise, there were no differences detected between treatments for the ratio of observed to expected dietary NE m ( P = 0.70) or the ratio of observed to expected dietary NE g ( P = 0.59), which is similar to what others have demonstrated in a transit-stressed calf model, as well as growing and finishing Holstein steers ( Zinn et al, 1999 ; Salinas-Chavira et al, 2018 ).…”

“…When a live yeast Saccharomyces cerevisiae boulardii CNCM I-1079 was fed to high-risk receiving heifers, improvements in growth performance during the initial 45 d on feed, as well as improved health outcomes, were noted ( Theurer et al, 2019 ). When an enzymatically hydrolyzed yeast was fed to growing Holstein steers, a 3.4 % increase in ADG and a 3.4 % increase in DMI was noted and steers exhibited similar feed efficiency ( Salinas-Chavira et al, 2018 ). However, when enzymatically hydrolyzed yeast was fed to crossbred beef steers, a 9% increase in ADG was observed during the finishing phase of production ( Salinas-Chavira et al, 2015 ).…”

“…The current Veterinary Feed Directive and implementation of all-natural beef marketing channels have created the need for nonantimicrobial feed additives that have the potential to improve feed conversion efficiency, aid in ruminal fermentation, and improve animal health outcomes. Feeding enzymatically hydrolyzed yeast, yeast culture products, and active live yeast strains of Saccharomyces cerevisiae (SC) to cattle has produced inconsistent results in relation to gain, intake, gain efficiency, and efficiency of dietary net energy (NE) utilization ( Zinn et al, 1999 ; Finck et al, 2014 ; Salinas-Chavira et al, 2015 ; Kayser et al, 2016 ; Ovinge et al, 2018 ; Salinas-Chavira et al, 2018 ). The objective of this experiment was to evaluate the influence of an active live yeast product (Levucell SC, Advantage Titan, CNCM l-1077, Lallemand Animal Nutrition, Milwaukee, WI) on receiving and backgrounding period growth performance and efficiency of dietary NE utilization in low health risk beef steers.…”

Supplementing a yeast-derived product to enhance productive and health responses of beef steers

“…Alternatively, increased ADG of Celmanax-supplemented ruminants has been associated with increased DM intake (Ponce et al, 2012;Nde et al, 2014). Supplementing S. cerevisiae-derived products to cattle may improve ruminal fiber degradation and microbial protein synthesis (Miller-Webster et al, 2002;Salinas-Chavira et al, 2015;Salinas-Chavira et al, 2017), which in turn regulate DM intake in ruminants (Allen, 1996). Accordingly, Ponce et al (2012) reported greater concentrate intake, but similar hay intake and overall feed efficiency, in Celmanax-supplemented compared with non-supplemented heifers during feedlot receiving.…”

Effect of a hydrolyzed mannan- and glucan-rich yeast fraction on performance and health status of newly received feedlot cattle1

“…Sánchez-Mendoza et al (2015) observed that a chromium-enriched YCW increased ADG and tended to increase DMI during the first 112 d of a trial, but not the last 100 d or overall compared with no YCW. Holstein steers supplemented with 0, 195, 390, or 585 mg/kg diet DM of enzymatically hydrolyzed YCW + yeast culture for 336 d had increased overall DMI, ADG, and final carcass weight, with maximal effects observed at 195 mg/kg YCW (Salinas-Chavira et al, 2017). The inclusion of YCW for the final 55 d in steers fed zilpaterol hydrochloride resulted in increased carcass adjusted final BW, ADG, and G:F from day 21 to 55, but there were no other differences in performance or carcass characteristics (Aragon et al, 2016).…”