Effect of dietary crude glycerol level on ruminal fermentation in continuous culture and growth performance of beef calves

2012 ◽  
Vol 90 (3) ◽  
pp. 892-899 ◽  
Author(s):  
M. H. Ramos ◽  
M. S. Kerley
Keyword(s):  
Growth Performance ◽  
Continuous Culture ◽  
Crude Glycerol ◽  
Ruminal Fermentation ◽  
Beef Calves ◽  
Glycerol Level

scholarly journals Effect of age of suckler beef calves on stress indicators and growth performance in response to Burdizzo castration

2021 ◽  
Vol 49 (1) ◽  
pp. 221-233
Author(s):  
Gabriela A. Marquette ◽  
Mark McGee ◽  
Andrew D. Fisher ◽  
Kelly Stanger ◽  
Bernadette Earley
Keyword(s):  
Growth Performance ◽  
Stress Indicators ◽  
Beef Calves ◽  
Effect Of Age

scholarly journals Antimicrobial supplementation alters digestibility and ruminal fermentation in a continuous culture model

2021 ◽  
Vol 49 (1) ◽  
pp. 23-29
Author(s):  
Alex J. Thompson ◽  
Zachary K. Smith ◽  
Jhones O. Sarturi ◽  
Bradley J. Johnson
Keyword(s):  
Continuous Culture ◽  
Ruminal Fermentation ◽  
Culture Model

1198 Effect of summer annuals on ruminal fermentation and methane output in continuous culture

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 575-575
Author(s):  
S. L. Dillard ◽  
A. I. Roca-Fernandez ◽  
A. N. Hafla ◽  
M. D. Rubano ◽  
A. F. Brito ◽  
...  
Keyword(s):  
Continuous Culture ◽  
Ruminal Fermentation

scholarly journals Effects of Replacing Dietary Starch with Sucrose on Ruminal Fermentation and Nitrogen Metabolism in Continuous Culture

2004 ◽  
Vol 87 (12) ◽  
pp. 4221-4229 ◽  
Author(s):  
J.E. Vallimont ◽  
F. Bargo ◽  
T.W. Cassidy ◽  
N.D. Luchini ◽  
G.A. Broderick ◽  
...  
Keyword(s):  
Continuous Culture ◽  
Nitrogen Metabolism ◽  
Ruminal Fermentation ◽  
Dietary Starch

Impact of a mixed culture of Lactobacillus casei and L. lactis on in vitro ruminal fermentation and the growth of feedlot steers fed barley-based diets

2009 ◽  
Vol 89 (2) ◽  
pp. 263-271 ◽  
Author(s):  
J. Baah ◽  
Y. Wang ◽  
T A McAllister
Keyword(s):  
Growth Performance ◽  
Mixed Culture ◽  
Lactobacillus Casei ◽  
Carcass Characteristics ◽  
Barley Grain ◽  
Feedlot Cattle ◽  
Ruminal Fermentation ◽  
Feedlot Steers ◽  
Barley Silage

The effect of a direct-fed microbial (DFM) poduct containing a mixed culture of Lactobacillus casei and L. lactis on in vitro ruminal fermentation of barley-grain/barley-silage-based backgrounding and finishing diets and on growth performance and carcass characteristics of feedlot cattle was evaluated during backgrounding (84 d) and finishing (140 d) of 100 Hereford × Angus steers (initial body weight = 280 ± 15.5 kg). The inclusion rates of DFM in the in vitro study were 4, 8, 12 and 16 million colony forming units (CFU) of lactic acid bacteria (LAB) kg-1 DM of substrate. Total in vitro volatile fatty acids (VFA) production increased at 6 and 12 h of incubation (P < 0.01; linear response) when the backgrounding diet was supplemented with DFM. Dry matter digestibility and VFA production also increased (P < 0.05) during a 12-h fermentation of the finishing diet. Steers were randomly allocated to one of four dietary treatments that comprised feeding DFM tp provide 0 (control), 4 × 107, 8 × 107, or 12 × 107 CFU kg-1 diet DM. Average daily gain (ADG, kg) and feed efficiency (G:F; kg gain kg-1 DM consumed) of steers improved (P = 0.002 and 0.001, respectively) as a result of feeding DFM during the backgrounding period, but not during the finishing period. Saleable meat and rib eye area decreased (P = 0.038, linear; and P = 0.041, quadratic) with DFM supplementation. The results indicated that supplementing barley-grain/barley-silage-based feedlot cattle diets with 12 × 107 CFU of the mixed culture of lactobacilli used in these studies could improve ruminal fermentation, ADG and G:F in backgrounding feedlot steers. However, supplementation during the finishing period may not be warranted in terms of growth performance and carcass characteristics. Differences in the microbial ecology of the intestinal tract as a result of differences in diet composition may account for the varied response between the backgrounding and finishing periods.Key words: Beef cattle, direct-fed microbial, growth performance, Lactobacillus casei, Lactobacillus lactis, ruminal fermentation

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