scholarly journals The effect of live yeast Saccharomyces cerevisiae as probiotic supply on growth performance, feed intake, ruminal pH and fermentation in fattening calves

2021 ◽  
Author(s):  
Omar Maamouri ◽  
Mondher Ben Salem
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Growth Performance ◽  
Feed Intake ◽  
Yeast Saccharomyces Cerevisiae ◽  
Ruminal Ph ◽  
Live Yeast

scholarly journals Effect of diet supplementation with live yeast Saccharomyces cerevisiae on growth performance, caecal ecosystem and health of growing rabbits

2016 ◽  
Vol 24 (3) ◽  
pp. 191 ◽  
Author(s):  
T. Belhassen ◽  
A. Bonai ◽  
ZS. Gerencsér ◽  
ZS. Matics ◽  
T. Tuboly ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Weight Gain ◽  
Growth Performance ◽  
Feed Intake ◽  
Clinical Chemistry ◽  
Control Diet ◽  
Temporary Increase ◽  
Yeast Saccharomyces Cerevisiae ◽  
Caecal Microbiota ◽  
Live Yeast

<p>The aim of this study was to determine the effect of the live yeast Saccharomyces cerevisiae on the growth performance, caecal ecosystem and overall health of growing rabbits. A control diet was formulated (crude protein: 15.9%; neutral detergent fibre: 31.6%) and another diet obtained by supplementing the control diet with 1 g of Saccharomyces cerevisiae (6.5×109 colony-forming units) per kg of diet. Ninety 35-d old rabbits were allotted into 3 groups: TT (rabbits offered the supplemented diet from 17 d of age onwards), CT (rabbits offered supplemented diet from 35 d) and CC (rabbits fed non-supplemented diet). Body weight (BW) and feed intake were measured weekly and mortality was controlled daily. At 35, 42 and 77 d of age, 6 rabbits from each group were slaughtered and digestive physiological traits, serum clinical chemistry parameters, fermentation traits, and the composition of caecal microbiota examined. At 42 and 56 d of age, 10 rabbits from each group were injected intraperitoneally with 100 μg/animal of ovalbumin and blood samples were collected for examination of plasma immunological parameters. Throughout the experiment (5-11 wk), weight gain and feed intake (37.8 and 112.6 g/d, on av.) were not affected by yeast, except for weight gain in the first week after weaning, which was the highest in TT animals among the 3 groups (48.1 vs. 43.9 and 44.2 g/d for TT, CC and CT, respectively; P=0.012). This may be due to the increased trend in feed intake (P=0.072) in the TT group (96.4 g/d) compared to the others. Mortality (5/90) was low and did not differ among the 3 groups. Treatments had no effect on slaughter traits at the 3 sampling dates (35, 42 and 77 d). Only the weight of the empty caecum (% BW) was higher (P=0.02) in CC (2.2%) and CT (2.3%) than in TT group (1.8%) at 77 d of age. Treatments did not overtly affect the caecal microbiota, although the number of total anaerobic bacteria and Bacteroides were lower (108 and 107/g caecal digesta, respectively) in rabbits from CC group compared to those of CT and TT groups at 42 d of age (P=0.03). No difference between groups was observed for caecal short chain fatty acids profile, blood traits, or IgG and cytokine profile. In conclusion, supplementation of feed with yeast did not modify growth traits and resulted in only a temporary increase in weight gain and a slightly altered caecal microbiota after weaning.</p>

The impacts of a fibrolytic enzyme additive on digestibility and performance in the grower period, and supplemental Saccharomyces cerevisiae on performance and rumen health in the finisher period for feedlot steers

2021 ◽  
Author(s):  
Melissa S. Williams ◽  
Ousama AlZahal ◽  
Ira B. Mandell ◽  
Brian McBride ◽  
Katie Wood
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Growth Performance ◽  
Mrna Expression ◽  
Experimental Treatment ◽  
Gut Health ◽  
Feed Conversion ◽  
Ruminal Ph ◽  
Gut Barrier Function ◽  
And Performance ◽  
The Impact

Two experiments were conducted to determine the effects of a fibrolytic enzyme pretreatment on growth performance, apparent total tract digestibility, and ruminal pH throughout the grower and early finisher period (Exp. 1), and to examine the impact of Saccharomyces cerevisiae supplementation on intake, performance, and indicators of gut health in the late finisher period (Exp. 2). Fifty-four steers were randomly assigned to a subgroup determining experimental treatment groups. In Exp. 1, steers were randomized to: control (CON1; no enzyme) or enzyme (ENZ; 0.75 ml kg-1 DM of feed) dietary treatments. Digestibility was improved (P≤0.05) in ENZ steers for DM, CP, NEg, and sugars, but did not affect (P≥0.12) DMI, ADG, or reticulo-ruminal pH. In Exp. 2, the treatments were: control (CON2; no yeast) or yeast (YST; 3.0 g animal-1 daily) supplemented diets. Rumen papillae were collected for mRNA expression of gut barrier function (OCLN, CLDN, ZO1, ZO2) and immune response (TLR2, TLR4, FCAR) genes and histological measurements. YST decreased (P<0.001) DMI by 31%, reduced variation in dry matter intake, and improved feed conversion ratios, but did not impact rumen health mRNA expression or histology measures (P≥0.07). Overall, ENZ improved the digestibility of some nutrients in the grower period, and YST improved feed efficiency, without impacting growth performance or gut health.

scholarly journals Effect of live yeast Saccharomyces cerevisiae supplementation on the performance and cecum microbial profile of suckling piglets

PLoS ONE ◽  
2019 ◽  
Vol 14 (7) ◽  
pp. e0219557 ◽  
Author(s):  
Tadele G. Kiros ◽  
Diana Luise ◽  
Hooman Derakhshani ◽  
Renee Petri ◽  
Paolo Trevisi ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Yeast Saccharomyces Cerevisiae ◽  
Microbial Profile ◽  
Suckling Piglets ◽  
Live Yeast
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