Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Direct-fed microbials (DFM)"”.
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Effects of direct-fed Bacillus pumilus 8G-134 (NRRL B-50174) on ruminal and fecal microbial populations of pre- and postpartum Holstein cows
Direct-fed microbials (DFM) are used as feed supplements in agricultural industry to enhance animal health and performance. The effects of Bacillus pumilus 8G-134 (NRRL B-50174) as a feed supplement were investigated through 16S rRNA gene-based inferences about community structure changes, …
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The Effects of a Single Strain Bacillus subtilis DFM on pullet performance, laying hen performance, and egg quality when fed from day of hatch until 70 weeks
Direct-fed microbials (DFM) are a method to increase bird performance and health when antibiotics are removed or limited in the diet. The objective of this experiment was to determine the effects of a single strain Bacillus subtilis DFM on pullet performance, layer performance, and egg quality when …
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The effects of Bacillus subtilis, dietary calcium and coccidial vaccines in broilers experiencing naturally occurring necrotic enteritis
… methods including coccidial vaccines and direct fed microbials (DFM) to reduce or prevent NE. Additionally, it has been demonstrated that reduced dietary Ca can reduce NE mortality. The objective of the first study was to examine the effects of Bacillus subtilis (DFM) in combination with …
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Investigating the effects of direct-fed microbials on beef cattle during an acidosis challenge
… of health problems and poor animal performance. Direct-fed microbials (DFM) are naturally occurring microorganisms that can be used to improve rumen fermentation and alleviate nutritional disorders. The objective of this study was to investigate the effect of two DFM dosing strategies on beef …
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Evaluation and Selection of a Bacillus based Direct-Fed Microbial Candidate for In situ Enzyme Production to Improve Gut Health Integrity, Bone Quality and Growth Performance in Poultry
… alternative among others is the utilization of direct-fed microbials (DFM) as substitutes of AGP and also as a prophylactic practice to reduce the incidence of bacterial gastrointestinal diseases. Therefore, the objectives of the present dissertation were to evaluate and select different …
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Using different levels of direct-fed microbials during an acidosis challenge and the effects of distillers grains on feeding behavior in the feedlot
… of health problems and poor animal performance. Direct-fed microbials (DFM) are naturally occurring microorganisms that can be used to improve rumen fermentation and alleviate nutritional disorders. The objective was to determine the effect of different levels of a DFM to mediate a subacute …
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Effects of nutritional strategies on rumen environment and performance in dairy cows
… libitum TMR; S2, restricted feeding, d 4, cows fed for 50% of S1 DMI; S3, challenge, d 5, treatments applied; S4, recovery, d 6-10, all cows fed ad libitum TMR. Treatments were CON, no top dress; MOD, 10% of S1 DMI as top dress (pelleted mixture of 50:50, wheat: barley); and HIG, 20% of S1 DMI …