Effect of Sheep Rumen Fermentation and Methane Inhibition on the Toxicity of Senecio Jacobaea2

1983 ◽  
Vol 56 (3) ◽  
pp. 645-651 ◽  
Author(s):  
R. A. Swick ◽  
P. R. Cheeke ◽  
H. S. Ramsdell ◽  
D. R. Buhler
Keyword(s):  
Rumen Fermentation ◽  
Sheep Rumen

A comparative study of artificial cow and sheep rumen fermentation of corn straw and food waste: Batch and continuous operation

2020 ◽  
Vol 745 ◽  
pp. 140731 ◽  
Author(s):  
Bao-Shan Xing ◽  
Sifan Cao ◽  
Yule Han ◽  
Xiaochang C. Wang ◽  
Junwei Wen ◽  
...  
Keyword(s):  
Comparative Study ◽  
Food Waste ◽  
Rumen Fermentation ◽  
Continuous Operation ◽  
Corn Straw ◽  
Sheep Rumen

scholarly journals Sheep Rumen Fermentation Characteristics Affected by Feeding Frequency and Feeding Level When Fed Fresh Forage

Animals ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 7 ◽  
Author(s):  
Xuezhao Sun ◽  
Ao Chen ◽  
David Pacheco ◽  
Simone O. Hoskin ◽  
Dongwen Luo
Keyword(s):  
Perennial Ryegrass ◽  
Ph Value ◽  
Rumen Fluid ◽  
Rumen Fermentation ◽  
Metabolizable Energy ◽  
Feeding Frequency ◽  
Factors Affecting ◽  
Feeding Level ◽  
Forage Species ◽  
Sheep Rumen

Feeding frequency and feeding level are two important factors affecting rumen fermentation characteristics, but few studies on these have been conducted on fresh forage. Eight rumen-fistulated sheep were fed either fresh chicory or perennial ryegrass hourly in the first period (d 14 to 21) of the experiment and twice-daily in the second period (d 22 to 27) at 1.3 or 2.2 times the requirement of metabolizable energy for maintenance. When fed hourly, but not twice-daily, rumen fluid pH value was affected by forage species and feeding level. The total concentrations of short-chain fatty acid (SCFA) were similar at both feeding levels when fed chicory hourly, but they were greater at the higher feeding level in comparison with the lower feeding level when fed perennial ryegrass. However, forage species and feeding level did not affect rumen fluid total SCFA concentration when sheep were fed twice-daily. Therefore, rumen fermentation characteristics were affected by forage species, feeding frequency, feeding level and their interactions and the differences in fermentation characteristics were more apparent when feeding was performed hourly rather than twice-daily. This study highlighted the importance of feeding frequency on manipulating sheep ruminal metabolism when fed fresh forage.

scholarly journals EFEK PROBIOTIK DAN SELUBIOSE TERHADAP VOLATILE FATTY ACIDS (VFA) DAN NH3 RUMINAL DOMBA GARUT

Jurnal BIOMA ◽  
2017 ◽  
Vol 13 (2) ◽  
pp. 10-16
Author(s):  
Atin Supiyani
Keyword(s):  
Volatile Fatty Acids ◽  
Rumen Fluid ◽  
Rumen Fermentation ◽  
Pennisetum Purpureum ◽  
Adult Weight ◽  
Average Value ◽  
Ruminal Ph ◽  
Randomized Design ◽  
Sheep Rumen ◽  
Ph Range

The composition of feed can improve and optimize the fermentation in sheep rumen. The purpose of this study is to determine the effect of probiotic and cellobiose to rumen fermentation of sheep. Four adult (weight ±13.5 kg) rumen fistulae sheep were used. The fed given were King grass (Pennisetum purpureum), rice bran and soybean meal that are protected by formaldehyde 0.3% as base feed. Fed treatment were probiotics (0,5% and 1%) and cellobiose (1 ppm and 3 ppm). Parameters measured were pH, N-NH3 and VFA concentration of rumen fluid at 0, 2, 6, 12, and 24 hours after feeding with Completely Randomized Design Factorials 4x5 and continued with Duncan test (α=0,05). The ruminal pH range for all treatments between 6.27 - 6.89. The maximum N-NH3 concentration value has been reached at 2 hours after feeding 12.25-18.75 mM. At 0 hours, the total VFA concentration was at an average value of 294.91 mg% and then increased at 2-6 hours reaching its maximum value in the range 661.97-767.70 mg% (p<0.05). The addition of probiotics and cellobiose can optimize rumen fermentation of sheep.

scholarly journals Effect of monensin sodium on fermentation efficiency in sheep rumen (short communication)

2002 ◽  
Vol 45 (2) ◽  
pp. 181-185 ◽  
Author(s):  
M. Baran ◽  
R. Žitňan
Keyword(s):  
Short Communication ◽  
Control Diet ◽  
Rumen Fermentation ◽  
Metabolizable Energy ◽  
Energy Losses ◽  
Feed Conversion ◽  
Fermentation Efficiency ◽  
Gross Efficiency ◽  
High Production ◽  
Sheep Rumen

Abstract. The efficiency of rumen fermentation was studied in lambs and wethers using 14 experimental rations with and without monensin sodium. The 7 pairs of rations (the first a control diet, the second a monensin treated one) consisted of hay and concentrate at ratios of 60:40, 40:60, 100:0, 50:50 (lambs), 100:0, 75:25 and 50:50 (wethers), respectively. The molar % of acetic, propionic, butyric and valeric acids were taken into stoichiometric calculations of rumen fermentation. In most of the rations monensin increased rumen fermentation efficiency. Of all lamb and wether rations the highest efficiency was recorded in the monensin treated ones consisting of 40 % hay and 60 % concentrates and 50 % hay and 50 % concentrates, respectively. The high fermentation efficiency was probably due to the lowest methane production observed with these rations. This means that monensin increased the amount of metabolizable energy by decreasing methane energy losses. The increase in fermentation efficiency is associated with a high production of propionic acid and in wethers also with an increase in the gross efficiency of feed conversion.

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