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Large or Food Animal and Equine Medicine Commons™

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Life Sciences

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Articles 31 - 36 of 36

Full-Text Articles in Large or Food Animal and Equine Medicine

Determining The Impact Of By-O-Reg+ In Diets With Or Without A Feed Grade Antibiotic On Growth Performance Of Nursery Pigs, L. L. Thomas, J. C. Woodworth, R. D. Goodband, J. M. Derouchey, M. D. Tokach, S. S. Dritz Jan 2015

Determining The Impact Of By-O-Reg+ In Diets With Or Without A Feed Grade Antibiotic On Growth Performance Of Nursery Pigs, L. L. Thomas, J. C. Woodworth, R. D. Goodband, J. M. Derouchey, M. D. Tokach, S. S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 717 nursery pigs (PIC C-29 × 28 and PIC L3-1050 × 1040, initially 12.48 ± 0.10 lb) from two consecutive nursery groups were used in a 35-d growth study. The objective was to determine the impact of increasing levels of By-O-Reg+ in diets with or without 50 g/ton Carbadox. By-O-Reg+ is a unique mixture of essential oils primarily based on oregano. It utilizes encapsulation technology to stabilize the essential oils and is suggested to have antimicrobial-like properties. The present study evaluated growth performance of nursery pigs fed 1 of 6 dietary treatments that were arranged as a …

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Effect Of Thermal Mitigation On Porcine Epidemic Diarrhea Virus (Pedv)- Contaminated Feed, R. A. Cochrane, L. L. Schumacher, S. S. Dritz, J. C. Woodworth, A. R. Huss, C. R. Stark, J. M. Derouchey, M. D. Tokach, R. D. Goodband, J. Bai, Qi Chen, Jianqiang Zhang, Phillip Charles Gauger, Rodger G. Main, C. K. Jones Jan 2015

Effect Of Thermal Mitigation On Porcine Epidemic Diarrhea Virus (Pedv)- Contaminated Feed, R. A. Cochrane, L. L. Schumacher, S. S. Dritz, J. C. Woodworth, A. R. Huss, C. R. Stark, J. M. Derouchey, M. D. Tokach, R. D. Goodband, J. Bai, Qi Chen, Jianqiang Zhang, Phillip Charles Gauger, Rodger G. Main, C. K. Jones

Kansas Agricultural Experiment Station Research Reports

Porcine Epidemic Diarrhea Virus (PEDV) is primarily transmitted by fecal-oral contamination. However, epidemiological evidence has shown that swine feed and ingredients may serve as potential vectors of transmission. Since it is known that PEDV is a heat-sensitive virus, we hypothesized that a conditioner and pellet mill mimicking commercial thermal processing would mitigate PEDV infectivity. To test this hypothesis, two experiments were designed to determine if different pellet mill conditioner retention times or temperatures would impact PEDV infectivity determined by polymerase chain reaction (PCR) analysis and bioassay. For the first study, a 3×3×2 factorial was utilized, with three pelleting temperatures (155, …

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Utilizing Feed Sequencing To Decrease The Risk Of Porcine Epidemic Diarrhea Virus (Pedv) Cross-Contamination During Feed Manufacturing, L. L. Schumacher, R. A. Cochrane, J. C. Woodworth, C. R. Stark, C. K. Jones, Rodger G. Main, Jianqiang Zhang, Phillip Charles Gauger, S. S. Dritz, M. D. Tokach Jan 2015

Utilizing Feed Sequencing To Decrease The Risk Of Porcine Epidemic Diarrhea Virus (Pedv) Cross-Contamination During Feed Manufacturing, L. L. Schumacher, R. A. Cochrane, J. C. Woodworth, C. R. Stark, C. K. Jones, Rodger G. Main, Jianqiang Zhang, Phillip Charles Gauger, S. S. Dritz, M. D. Tokach

Kansas Agricultural Experiment Station Research Reports

Understanding key points of potential cross-contamination during the feed manufacturing process is important to developing efficacious methods to control or prevent transmission of pathogens into swine diets. In this study, an experiment was conducted involving 30 crossbred 10-d-old pigs that were used as a bioassay model for Porcine Epidemic Diarrhea Virus (PEDV) to determine the effects of feed batch sequencing on PEDV cross-contamination and subsequent infectivity. PEDV with a PCR cycle threshold value (Ct) of 11 was uniformly mixed into 4.5 kg of swine diet using a stainless steel bench top mixer validated for mixing efficiency. The inoculated feed was …

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Evaluating Chemical Mitigation Of Porcine Epidemic Diarrhea Virus (Pedv) In Swine Feed And Ingredients, R. A. Cochrane, S. S. Dritz, J. C. Woodworth, A. R. Huss, C. R. Stark, R. A. Hesse, Jianqiang Zhang, M. D. Tokach, J. Bai, C. K. Jones Jan 2015

Evaluating Chemical Mitigation Of Porcine Epidemic Diarrhea Virus (Pedv) In Swine Feed And Ingredients, R. A. Cochrane, S. S. Dritz, J. C. Woodworth, A. R. Huss, C. R. Stark, R. A. Hesse, Jianqiang Zhang, M. D. Tokach, J. Bai, C. K. Jones

Kansas Agricultural Experiment Station Research Reports

Porcine Epidemic Diarrhea Virus (PEDV) is primarily transmitted by fecal-oral contamination. Research has confirmed swine feed or ingredients as potential vectors of transmission, so strategies are needed to mitigate PEDV in feed. The objective of this experiment was to evaluate the effectiveness of various chemical additives to prevent or mitigate post-processing PEDV contamination in swine feed and ingredients. Treatments were arranged in a 7 × 4 factorial with seven chemical treatments and four feed matrices. The chemical treatments included: negative control with no chemical addition, 0.3% commercial formaldehyde product, 1% sodium bisulfate, 1% sodium chlorate, 3% custom organic acid blend …

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Vitamin And Trace Minerals: A Survey Of Current Feeding Regimens, J. R. Flohr, M. D. Tokach, J. C. Woodworth, J. M. Derouchey, S. S. Dritz, R. D. Goodband Jan 2015

Vitamin And Trace Minerals: A Survey Of Current Feeding Regimens, J. R. Flohr, M. D. Tokach, J. C. Woodworth, J. M. Derouchey, S. S. Dritz, R. D. Goodband

Kansas Agricultural Experiment Station Research Reports

Swine producers and nutritionists representing production systems across the United States were surveyed about added vitamin and trace mineral concentrations in swine diets used from March to August of 2014. Respondents were asked to provide the vitamin and trace mineral premix specifications and inclusion rates to calculate complete diet added vitamin and trace mineral concentrations. Weight ranges associated with feeding phases also were collected. In total, 18 production systems representing approximately 2.3 million sows (~40% of the U.S. sow herd) participated in the survey. Data were compiled into relatively consistent weight ranges across all participating producers. There were three nursery …

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Evaluating The Efficacy Of A Novel Phytase Source, J. R. Flohr, J. M. Derouchey, M. D. Tokach, S. S. Dritz, J. C. Woodworth, R. D. Goodband Jan 2015

Evaluating The Efficacy Of A Novel Phytase Source, J. R. Flohr, J. M. Derouchey, M. D. Tokach, S. S. Dritz, J. C. Woodworth, R. D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 350 nursery pigs (PIC 1050 barrows, initially 33.2 lb and 49 d of age) were used in a 21-d study to determine the aP release curve for a novel phytase product (Microtech 5,000, VTR Bio-tech Co., Guangdong, China). Pigs were randomly allotted to pens at arrival to the facility, and on d 0 of the trial pens were allotted to 1 of 7 treatments in a randomized complete block design. There were 5 pigs per pen and 10 pens per treatment. Pigs were fed corn-soybean meal-based diets formulated to 1.25% SID lysine. A single batch of the …

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