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

Abstract

This experiment evaluated the impacts of supplementing a yeast-derived product (Celmanax; Church & Dwight Co., Inc., Princeton, NJ, USA) on productive and health responses of beef steers, and was divided into a preconditioning (days 4 to 30) and feedlot receiving phase (days 31 to 69). In all, 84 Angus × Hereford steers were weaned on day 0 (BW=245±2 kg; age=186±2 days), and maintained in a single group from days 0 to 3. On day 4, steers were allocated according to weaning BW and age to a 21-pen drylot (4 steers/pen). Pens were randomly assigned to (n=7 pens/treatment): (1) no Celmanax supplementation during the study, (2) Celmanax supplementation (14 g/steer daily; as-fed) from days 14 to 69 or (3) Celmanax supplementation (14 g/steer daily; as-fed) from days 31 to 69. Steers had free-choice access to grass-alfalfa hay, and were also offered a corn-based concentrate beginning on day 14. Celmanax was mixed daily with the concentrate. On day 30, steers were road-transported for 1500 km (24 h). On day 31, steers returned to their original pens for the 38-day feedlot receiving. Shrunk BW was recorded on days 4, 31 and 70. Feed intake was evaluated daily (days 14 to 69). Steers were observed daily (days 4 to 69) for bovine respiratory disease (BRD) signs. Blood samples were collected on days 14, 30, 31, 33, 35, 40, 45, 54 and 69, and analyzed for plasma cortisol, haptoglobin, IGF-I, and serum fatty acids. Preconditioning results were analyzed by comparing pens that received (CELM) or not (CONPC) Celmanax during the preconditioning phase. Feedlot receiving results were analyzed by comparing pens that received Celmanax from days 14 to 69 (CELPREC), days 31 to 69 (CELRECV) or no Celmanax supplementation (CON). During preconditioning, BRD incidence was less (P=0.03) in CELM v. CONPC. During feedlot receiving, average daily gain (ADG) (P=0.07) and feed efficiency (P=0.08) tended to be greater in CELPREC and CELRECV v. CON, whereas dry matter intake was similar (P⩾0.29) among treatments. No other treatment effects were detected (P⩾0.20). Collectively, Celmanax supplementation reduced BRD incidence during the 30-day preconditioning. Moreover, supplementing Celmanax tended to improve ADG and feed efficiency during the 38-day feedlot receiving, independently of whether supplementation began during preconditioning or after feedlot entry. These results suggest that Celmanax supplementation benefits preconditioning health and feedlot receiving performance in beef cattle.

Effects of a yeast-derived product on growth performance, antioxidant capacity, and immune function of broilers

“…In addition, plentiful researches displayed that yeast culture and yeast cell wall components showed positive effects on growth performance in different animals ( Gao et al., 2008 ; Ma et al., 2020 ; Sun et al., 2020 ). The beneficial effects of YC-EHY on growth performance of broiler chickens might be due to that the yeast-derived additive or its components could improve health responses, immune, and anti-inflammatory effects in animals, as previously reported ( Salinas-Chavira et al., 2018 ; Silva et al., 2018 ; Bu et al., 2020 ).…”

“…(2020) . Similarly, supplemental YC-EHY increased the ADG and feed efficiency in ruminants ( Salinas-Chavira et al., 2018 ; Silva et al., 2018 ). Besides, Huff et al.…”

“…The yeast culture plus enzymatically hydrolyzed yeast cell wall ( YC-EHY ) is a yeast-derived product developed by Saccharomyces cerevisiae . Several previous studies have been shown that YC-EHY effectively improved the performance and health responses in animals ( Nocek et al., 2011 ; Silva et al., 2018 ). Nocek et al.…”

Supplementing organic-complexed or inorganic Co, Cu, Mn, and Zn to beef cows during gestation: postweaning responses of offspring reared as replacement heifers or feeder cattle

“…Incidence of BRD during preconditioning did not differ ( P = 0.40) between treatments ( Table 4 ). In fact, BRD incidence was minimal compared to previous research with preconditioning cattle ( Marques et al, 2016 ; Silva et al, 2018 ), which may have hindered proper assessment of this response. Nonetheless, BRD incidence during on-ranch preconditioning programs is expected to be minimal ( Schubach et al, 2020 ), as calves are not exposed to additional stressors besides the weaning process ( Cooke, 2017 ).…”

Effects of mannan oligosaccharide dietary supplementation on mortality, growth performance and carcass traits in meat Guinea pigs

“…MOS has shown positive effects in growth traits and immune response in animals as weanling pigs (Zhao et al 2012;Valpotić et al 2017), nursery pigs (Halas and Nochta 2012), pigs (Valpotić et al 2018), dairy cattle (Tewoldebrhan et al 2017), beef (Silva et al 2017), poultry (Hooge 2004) or trout (Mínguez et al 2016).…”