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Showing 1 to 20 of 246 for “"ruminal"”.
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Post-Ruminal Amino Acid Nutrition
Made available in DSpace on 2014-12-10T22:30:27Z (GMT). No. of bitstreams: 1 7317224.pdf: 5568138 bytes, checksum: 800fbb9d1f787f9d62e5769db082366e (MD5) Previous issue date: 1972
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Integration of Ruminal Volatile Fatty Acid Production Methods, Ruminal Fluid Sampling Techniques, and Mathematical Modeling
… develop simpler methods of measuring the rate of ruminal volatile fatty acid (VFA) production and a practical but effective way of sampling ruminal fluid. In experiment 1, an in vitro technique (procedure and mathematical approach) were developed to estimate ruminal VFA production in vivo. This …
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FUNCTIONAL ADAPTATION OF THE RUMINAL EPITHELIUM
… every 5 min for 48 h prior to killing (1000 h). Ruminal tissue was collected for Ussing chamber, barrier function, surface area measurements, and gene expression. Net 22Na+ flux (JNET-Na; 80 kBq/15 mL), the rate and pathway of mucosal to serosal 3H-acetate (JMS-acetate; 37 kBq/15 mL) and …
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Effect of monensin supplementation on ruminal and postruminal digestion in sheep and on adaptation of ruminal microbes
… Monensin supplementation increased (P <.05) ruminal propionate while decreasing (P <.05) acetate levels throughout the 146-d experiment. Withdrawal caused acetate to return to control levels but decreased (P <.05) propionate. During ionophore supplementation, the digestibilities of organic …
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Effects of ruminal nutrient degradability on volatile fatty acid dynamics, ruminal epithelial gene expression, and post-absorptive system
… post-absorptive muscle and blood responses. Six ruminally cannulated Holstein heifers (BW=330 ± 11.3 kg) were used in a partially replicated Latin Square experiment with four treatments consisting of beet pulp or timothy hay and barley or corn grain. Periods were18 d with 3 d diet adaptation and …
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Lactational Evaluation of Protein Supplements of Varying Ruminal Degradability
<p>Twelve lactating Holsteins, (9 multiparous and 3 primiparous) were used in a replicated 3x3 Latin square design to evaluate 3 protein supplements that varied in RUP and amino acid composition. Cows received either 44% solvent soybean meal, expeller soybean meal, or an animal vegetable blend as a …
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Evaluation of ruminal escape potential of crab meal and other protein supplements and influence of steam explosion of ruminal degradability of crab meal
… HESA and NC diets. There were no differences in ruminal fluid pH among the sheep fed different protein supplements. Sheep fed CM tended to have higher total VFA compared to other supplements. Highest (P < .05) ruminal NH₃ N and blood urea N were observed in lambs fed the U diet. In Expt. 3, the …
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Post-ruminal amino acid supplementation to sheep fed roughage diets
348 leaves : graphs, tables ; 30 cm.
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Ruminal Nitrogen Recycling and Nitrogen Efficiency in Lactating Dairy Cattle
Excess nitrogen (N) excretion from animal agriculture results in reduced air and water quality, and poses a risk to human health. Although the dairy industry utilizes milk urea N (MUN) to monitor protein feeding and N excretion, phenotypic diversity among cows may influence MUN and thus bias feed …
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Ruminal Degradation of Polyhydroxyalkanoate and Poly(butylene succinate-co-adipate)
The occurrence of plastic impaction in ruminants is a growing concern. As indiscriminate feeders, cattle may consume plastic foreign materials incorporated into their diets and it is currently estimated that 20% of cattle contain plastic foreign materials in their rumen. These materials are …
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Factors affecting efficiency of net ruminal microbial protein synthesis in cattle
Restriction data tranferred 2014-07-01T11:28:54-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission
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Absorption of carnosine and methionylglycine by sheep ruminal and omasal epithelia
… marker) absorption and transfer across ruminal and omasal epithelia collected from four (carnosine) and seven (methionylglycine) sheep were studied using parabiotic chambers that were repeatedly sampled over a 240-min incubation. The quantity of dipeptide absorbed or transferred was …
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The isolation and fermentation characteristics of Butyrivibrio species from ruminal ingesta
Ten strains of anaerobic, gram negative, monotrichous, butyric acid-producing curved rods have been isolated from ingesta of the bovine rumen. These 10 strains of butyrivibrio represented 1/5 of all isolates at 1 x 10⁻⁸ dilutions. Morphological and physiological characteristics of the 10 strains …
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Comparative studies of oxalyl-CoA decarboxylase produced by soil and ruminal bacteria
The aim of this project was to identify an enzyme responsible for the metabolism of oxalate which would be suitable for degrading oxalate in the rumen, and clone and characterise that gene.
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Influence of nutrition on the muscle transcriptome and ruminal microbiome in cattle
… nutrients. Several of these factors include the ruminal microbiome composition and epithelial tissue function, and nutrient provision in utero. The objective of this dissertation was to evaluate the effects of nutrition on these physiological effects to determine their potential to influence …
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Proteolytic Activity of Ruminal Bacteria: Studies With Butyrivibrio Fibrisolvens (Protease, Anaerobe, Protein)
The proteolytic activity of the ruminal anaerobe Butyrivibrio fibrisolvens was examined using azocasein degradation to monitor activity. Growing cells of B. fibrisolvens produced an extracellular proteolytic activity and the rate of enzyme synthesis largely paralleled growth. Protease production …
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Ruminal degradability of subfractions of protein sources as determined by gel electrophoresis
Degradability in the rumen of several protein sources was determined by suspending from 12 to 13 g of feedstuff in dacron bags into the rumen for 0, 2, 6, 12, 24, 36, 48, and 72 h. Rumen cannulated lactating Holstein cows consuming a diet of corn silage, alfalfa, soybean, and high moisture corn …
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Development of a negative stain for a direct microscopic count for ruminal microorganisms
Thesis (M.S.)--Michigan State College of Agriculture and Applied Science. Dept. of Bacteriology and Public Health, 1952
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The Effects of Starvation on The Ruminal Bacteria Megasphaera Elsdenii and Selenomonas Ruminantium
The ruminal bacteria, Megasphaera elsdenii and Selenomonas ruminantium, were subjected to total organic nutrient starvation after growth in batch and/or continuous culture. Both organisms exhibited a very limited survival capacity in comparison to other bacteria reported in the literature. This …
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