Meta-analysis examining the effects of Saccharomyces cerevisiae fermentation products on feedlot performance and carcass traits1,2,31Use of trade names in this publication does not imply endorsement by Colorado State University or the authors or criticisms of similar products not mentioned.2Mention of a proprietary product does not constitute a guarantee or warranty of the products by Colorado State University or the authors and does not imply its approval to the exclusion of other products that may also be suitable.3Partial sponsorship of this study was provided by Diamond V, Cedar Rapids, IA 52404.

2016 ◽  
Vol 32 (2) ◽  
pp. 172-182 ◽  
Author(s):  
J.J. Wagner ◽  
T.E. Engle ◽  
C.R. Belknap ◽  
K.L. Dorton
Author(s):  
Hamidreza Khalouei ◽  
Vidura Seneratne ◽  
Kelsey Fehr ◽  
junfei Guo ◽  
Ilkyu Yoon ◽  
...  

Effects of Saccharomyces cerevisiae fermentation products (SCFP) and subacute ruminal acidosis (SARA) on rumen and hindgut fermentation, feed intake, and total tract nutrient digestibilities were determined in 32 lactating Holstein cows between wk 4 to wk 9 of lactation. Treatments included Control, 14 g/d Diamond V Original XPC™ (SCFPa, Diamond V, Cedar Rapids, IA), 19 g/d NutriTek® (SCFPb-1X, Diamond V), and 38 g/d NutriTek® (SCFPb-2X). During wk 5 and wk 8, SARA challenges were conducted by switching from a 18.6 to a 27.9 % DM starch diet. This reduced the rumen and feces pH. The durations of the rumen pH below 5.6 during these challenges averaged 175.0, 233.8, 246.9, and 79.3 min/d for the Control, SCFPa, SCFPb-1X and SCFPb-2X treatments, respectively. Hence, SARA was not induced under the SCFPb-2X treatment. The feces pH during the SARA challenges was lowest during SCFPb-2X, suggesting this treatment shifted fermentation from the rumen to the hindgut. The SARA challenges reduced the total tract digestibility of DM, NDF (NDFd), and P, but tended to increase that of starch. The SCFPb-2X treatment increased the NDFd from 52.7 to 61.8 % (P < 0.05). The SCFPb-2X treatment attenuated impacts of SARA.


Animals ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 4 ◽  
Author(s):  
Zhijun Cao ◽  
Jianxin Xiao ◽  
Gibson Alugongo ◽  
Shoukun Ji ◽  
Zhaohai Wu ◽  
...  

The effect of Saccharomyces cerevisiae fermentation products (SCFP) on improving growth and health of calves could be attributed to the ability of SCFP to modulate the microbiota in the gastrointestinal tract (GIT). However, the changes in microbial community along the gut in calves supplemented with SCFP have not been investigated extensively. The aims of this study were to investigate the effect of SCFP on microbial communities in each sites of GIT using high-throughput sequencing technique. Fifteen Holstein male calves were used and randomly assigned to 1 of the 3 treatments including a calf starter containing 0 (Control, CON), 0.5 (SCFP1) or 1% SCFP (SCFP2, Original XPC, Diamond V, Cedar Rapids, IA, USA) of dry matter from day 4 to 56. The supplemented calves were fed with an additional 1 g/d SCFP (SmartCare, Diamond V, Cedar Rapids, IA, USA) in milk from day 2 to 30. Rumen fluid was sampled at day 28 of age via esophageal tube. All calves were slaughtered and gastrointestinal samples collected on day 56. Inclusion of SCFP increased the microbial species richness in the large intestine. The SCFP also affected the bacterial community at an early age in the rumen and later in rectum microbiota. Supplementation of SCFP stimulated colonization by fibrolytic bacteria (Lachnospiraceae and Ruminococcaceae) in rumen and large intestine, respectively. No differences were found between SCFP1 and SCFP2. This is the first study to analyze the effect of SCFP on bacterial community of the GIT microbiota in calves. The results provide the basic bacterial community information, which helps us understand the mechanism of action of SCFP for improving the health and performance of pre-weaning calf.


2008 ◽  
Vol 12 (3) ◽  
Author(s):  
Maria Jean Puzziferro ◽  
Kaye Shelton

As the demand for online education continues to increase, institutions are faced with developing process models for efficient, high-quality online course development. This paper describes a systems, team-based, approach that centers on an online instructional design theory (Active Mastery Learning) implemented at Colorado State University-Global Campus.


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