Results 241 to 250 of about 12,791 (280)

Post-ruminal phytate degradation in sheep

Animal Feed Science and Technology, 2002
Abstract This experiment was conducted to study phytate (inositol hexaphosphate) degradation in the post-ruminal digestive tract of sheep. Three sheep were fed a diet containing 20% rapeseed meal at intervals of 2 h for 5 days and then digesta were collected from the abomasum, small intestine, upper large intestine and lower large intestine.
W.-Y Park, T Matsui, H Yano
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Differential ruminal degradation of alfalfa proteins

Canadian Journal of Plant Science, 2009
Alfalfa (Medicago sativa L.) has high crude protein that is rapidly and extensively degraded in the rumen. Our objective was to develop a protocol where individual proteins could be characterized for their ruminal degradation. Proteins from individual genotypes of three alfalfa cultivars were characterized using fluorescence 2D difference gel ...
D Chen, M D Peel, K C Olson, B C Weimer, D B DeWald   +4 more
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Do Naïve Ruminants Degrade Alkaloids in the Rumen?

Journal of Chemical Ecology, 2005
Three different methods for the culture of rumen microorganisms (Hungate's technique, the Hohenheim in vitro gas production method, and the semicontinuous rumen simulation technique) were employed to study the influence of various alkaloids (sparteine, lupanine, cytisine, atropine, quinidine, lobeline, harmaline, arecoline, nicotine, caffeine ...
Ramón, Aguiar, Michael, Wink
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Enhanced Degradation of 3-Nitropropanol by Ruminal Microorganisms

Journal of Animal Science, 1986
Ruminal fluid was obtained over a 4-yr period from cattle on various diets and supplements to determine the effects of different inocula on the microbial degradation of 3-nitropropanol (NPOH), a toxic metabolite in certain Astragalus spp. (Leguminosae). Nitrite (NO2-) metabolism was also studied in vitro because rapid NO2- reduction is required for the
W, Majak, K J, Cheng, J W, Hall
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Cellulose Degradation by Ruminal Microorganisms

Critical Reviews in Biotechnology, 1992
The rumen is a highly developed digestive organ in which feed material, particularly plant fiber, is efficiently digested by a complex microbial fermentation.
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Measuring resistance to ruminal degradation and bioavailability of ruminally protected methionine

Animal Feed Science and Technology, 2000
The objectives of this study were to evaluate ruminal degradation and intestinal digestion of two ruminally protected methionine (RPM) products and to assess the potential use of changes in plasma methionine concentrations as an indication of methionine availability to the animal.
Alex Bach, Marshall D Stern
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In vitro determination of ruminal protein degradation using freeze-stored ruminal microorganisms.

Journal of Animal Science, 1996
Mixed ruminal microorganisms were harvested from a lactating dairy cow and preserved frozen or lyophilized. Fermentation characteristics of freshly strained ruminal fluid, frozen microorganisms, or lyophilized microorganisms were evaluated during a 24-h pre-incubation and a 4-h incubation with test proteins. Differences observed during the first 4 to 6
N D, Luchini, G A, Broderick, D K, Combs
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Preservation of ruminal microorganisms for in vitro determination of ruminal protein degradation.

Journal of Animal Science, 1996
Ruminal microorganisms, preserved either lyophilized or frozen, were compared with freshly strained ruminal fluid for proteolytic activity and as inoculum source for determination of ruminal protein degradation rates by the inhibitor in vitro method. Dialysis and glycerol addition had no effect on the proteolytic activity of preserved microorganisms ...
N D, Luchini, G A, Broderick, D K, Combs
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Ruminal degradation of tannin‐treated legume meals

Journal of the Science of Food and Agriculture, 2004
AbstractThe inefficiency of protein utilisation by ruminants fed protein concentrates (based on legume meals) causes serious economic loss and environmental damage owing to their rapid hydrolysis and deamination in the rumen. Thus efforts aimed at slowing the ruminal fermentation of such feeds are needed, and recent studies have observed potentially ...
TF Martínez, FJ Moyano, M Díaz, FG Barroso, FJ Alarcón   +4 more
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Ruminal Degradation and Outflow of Amino Acids in Cows

Journal of Veterinary Medicine Series A, 1989
SummaryTwo rumen‐ and duodenum‐cannulated cows were used to study the disappearance rate, degradation in, and outflow from the rumen of four amino acids administered individually into the rumen at the following dose levels (mmol): lysine 273–547‐820, tyrosine 276–496‐828, isoleucine 381–762‐1143, methionine 335.
N, Sulu, K, Bjørnstad, D, Grønseth, W, Velle   +3 more
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