Effects of citric acid supplementation on rumen fermentation, urinary excretion of purine derivatives and feed digestibility in steers

2009 ◽  
Vol 89 (13) ◽  
pp. 2302-2307 ◽  
Author(s):  
Cong Wang ◽  
Qiang Liu ◽  
Jie Meng ◽  
Wen Zhu Yang ◽  
Xiao Min Yang ◽  
...  
Keyword(s):  
Citric Acid ◽  
Urinary Excretion ◽  
Rumen Fermentation ◽  
Purine Derivatives ◽  
Acid Supplementation ◽  
Feed Digestibility

Effects of glycerol on rumen fermentation, urinary excretion of purine derivatives and feed digestibility in steers

2009 ◽  
Vol 121 (1) ◽  
pp. 15-20 ◽  
Author(s):  
C. Wang ◽  
Q. Liu ◽  
W.J. Huo ◽  
W.Z. Yang ◽  
K.H. Dong ◽  
...  
Keyword(s):  
Urinary Excretion ◽  
Rumen Fermentation ◽  
Purine Derivatives ◽  
Feed Digestibility

scholarly journals Effects of malic acid on rumen fermentation, urinary excretion of purine derivatives and feed digestibility in steers

animal ◽  
2009 ◽  
Vol 3 (1) ◽  
pp. 32-39 ◽  
Author(s):  
Q. Liu ◽  
C. Wang ◽  
W.Z. Yang ◽  
Q. Dong ◽  
K.H. Dong ◽  
...  
Keyword(s):  
Urinary Excretion ◽  
Malic Acid ◽  
Rumen Fermentation ◽  
Purine Derivatives ◽  
Feed Digestibility

Effects of calcium propionate on rumen fermentation, urinary excretion of purine derivatives and feed digestibility in steers

2009 ◽  
Vol 147 (2) ◽  
pp. 201-209 ◽  
Author(s):  
Q. LIU ◽  
C. WANG ◽  
G. GUO ◽  
W. Z. YANG ◽  
K. H. DONG ◽  
...  
Keyword(s):  
Urinary Excretion ◽  
Latin Square ◽  
Rumen Fermentation ◽  
Dependent Manner ◽  
Purine Derivatives ◽  
Experimental Conditions ◽  
Maize Stover ◽  
Feed Digestibility ◽  
Calcium Propionate ◽  
Ph Range

SUMMARYThe objective of the current study was to evaluate the effects of calcium propionate supplementation on rumen fermentation, urinary excretion of purine derivatives (PD) and feed digestibility in the total gastrointestinal tract of steers. Eight ruminally cannulated Simmental steers (462±14 kg) were used in a replicated 4×4 Latin square arrangement of treatments with experimental periods of 21 days. The treatments were: control (without calcium propionate), LCaP (calcium propionate – low), MCaP (calcium propionate – medium) and HCaP (calcium propionate – high) with 100, 200 and 300 g calcium propionate per steer per day. Diet consisted of 0·60 maize stover and 0·40 concentrate (dry matter (DM) basis). DM intake (average 9 kg/day) was restricted to a maximum of 0·90 ofad libitumintake. Ruminal pH (range of 6·7–6·5) linearly (P<0·003) and quadratically (P<0·005) decreased, and total volatile fatty acid (VFA) concentration (range of 64·4–67·1 mm) tended (P<0·087) to increase linearly with rising calcium propionate supplementation. Ratio of acetate to propionate fell linearly (P<0·006) and quadratically (P<0·008) from 3·5 to 2·6 as calcium propionate supplementation increased due to the additional propionate supplementation.In situruminal neutral detergent fibre (NDF) degradation of maize stover and crude protein (CP) degradability of concentrate mix were improved with increasing concentration of calcium propionate. Urinary excretion of PD was linearly (P<0·032) and quadratically (P<0·048) increased with greater calcium propionate supplementation (72, 74, 77 and 76 mmol/day for control, LCaP, MCaP and HCaP, respectively). Similarly, digestibilities of organic matter (OM), NDF and CP in the total tract were also linearly and quadratically improved with increasing calcium propionate. The results indicate that the calcium propionate supplementation potentially improves rumen fermentation and feed digestion in beef cattle. It is speculated that calcium propionate stimulates the digestive microorganisms or enzymes in a dose-dependent manner. In the experimental conditions of the current trial, the optimum calcium propionate dose was about 200 g calcium propionate per steer per day.

Effect of elemental nano-selenium on feed digestibility, rumen fermentation, and purine derivatives in sheep

2011 ◽  
Vol 163 (2-4) ◽  
pp. 136-142 ◽  
Author(s):  
Liguang Shi ◽  
Wenjuan Xun ◽  
Wenbin Yue ◽  
Chunxiang Zhang ◽  
Youshe Ren ◽  
...  
Keyword(s):  
Rumen Fermentation ◽  
Purine Derivatives ◽  
Feed Digestibility

scholarly journals Effect of Rare Earth Elements on Feed Digestibility, Rumen Fermentation, and Purine Derivatives in Sheep

2014 ◽  
Vol 13 (2) ◽  
pp. 3205 ◽  
Author(s):  
Wenjuan Xun ◽  
Liguang Shi ◽  
Guanyu Hou ◽  
Hanlin Zhou ◽  
Wenbin Yue ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Rumen Fermentation ◽  
Purine Derivatives ◽  
Feed Digestibility

Effect of High-Dose Nano-selenium and Selenium–Yeast on Feed Digestibility, Rumen Fermentation, and Purine Derivatives in Sheep

2012 ◽  
Vol 150 (1-3) ◽  
pp. 130-136 ◽  
Author(s):  
Wenjuan Xun ◽  
Liguang Shi ◽  
Wenbin Yue ◽  
Chunxiang Zhang ◽  
Youshe Ren ◽  
...  
Keyword(s):  
Rumen Fermentation ◽  
High Dose ◽  
Purine Derivatives ◽  
Selenium Yeast ◽  
Feed Digestibility

Effects of lanthanum on rumen fermentation, urinary excretion of purine derivatives and digestibility in steers

2008 ◽  
Vol 142 (1-2) ◽  
pp. 121-132 ◽  
Author(s):  
Q. Liu ◽  
C. Wang ◽  
Y.X. Huang ◽  
K.H. Dong ◽  
W.Z. Yang ◽  
...  
Keyword(s):  
Urinary Excretion ◽  
Rumen Fermentation ◽  
Purine Derivatives
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