Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons™

Open Access. Powered by Scholars. Published by Universities.®

PDF

Kansas State University Libraries

2013

Discipline
Keyword
Publication
Publication Type

Articles 1 - 30 of 73

Full-Text Articles in Life Sciences

Using Functional Data Analysis To Evaluate Effect Of Shade On Body Temperature Of Feedlot Heifers During Environmental Heat Stress, F. Yang, A. M. Parkhurst, C. N. Lee, T. M. Brown-Brandl, P. E. Hillman Apr 2013

Using Functional Data Analysis To Evaluate Effect Of Shade On Body Temperature Of Feedlot Heifers During Environmental Heat Stress, F. Yang, A. M. Parkhurst, C. N. Lee, T. M. Brown-Brandl, P. E. Hillman

Conference on Applied Statistics in Agriculture

Heat stress can be a serious problem for cattle. Body temperature (Tb) is a good measure of an animal’s thermo-regulatory response to an environmental thermal challenge. Previous studies found that Tb increases in response to increasing ambient temperature in a controlled chamber. However, when animals are in an uncontrolled environment, Tb is subject to many uncontrolled environmental factors, such as sunshade, wind, and humidity, that increase variation in the data. Hence, functional data analysis (FDA) was applied to analyze the data with uncontrolled environmental factors as curves in the whole series of days in this study. Breed (Angus, MARCIII, MARC-I, …

Go to article

Detecting Factors Associated With Springwheat Yield Stability In South Dakota Environments, Jixiang Wu, Karl Glover, William Berzonsky Apr 2013

Detecting Factors Associated With Springwheat Yield Stability In South Dakota Environments, Jixiang Wu, Karl Glover, William Berzonsky

Conference on Applied Statistics in Agriculture

Conventional yield stability analyses are focused on yield stability itself by using single linear regression method and/or additive main effect and multiplicative interaction (AMMI) analysis. It is likely that yield stability for a genotype is associated with many factors such as fertilizer level, soil types, weather conditions, and/or yield components. Detection of factors highly associated with yield stability, therefore, will help breeders develop cultivars adapted to diverse environments or to specific environments. In this study, we conducted correlation analysis based on both environments and genotypes for a data set with 22 spring wheat genotypes, which were evaluated in 18 environments …

Go to article

Estimation Of Dose Requirements For Extreme Levels Of Efficacy, Mark West, Guy Hallman Apr 2013

Estimation Of Dose Requirements For Extreme Levels Of Efficacy, Mark West, Guy Hallman

Conference on Applied Statistics in Agriculture

The objective of this paper is to explore the extent of how dose-response models may be used to estimate extreme levels of efficacy for controlling insect pests and possibly other uses. Probit-9 mortality (99.9968% mortality) is a standard for treatment effectiveness in tephritid fruit fly research, and has been adopted by the United States Department of Agriculture for fruit flies and other pests. Data taken from the phytosanitary treatment (PT) literature are analyzed. These data are used to fit dose-response models with logit, probit and complimentary log-log links. The effectiveness of these models for predicting extreme levels of efficacy is …

Go to article

A Simulation Study Of The Small Sample Properties Of Likelihood Based Inference For The Beta Distribution, Kevin Thompson, Edward Gbur Apr 2013

A Simulation Study Of The Small Sample Properties Of Likelihood Based Inference For The Beta Distribution, Kevin Thompson, Edward Gbur

Conference on Applied Statistics in Agriculture

Researchers often collect proportion data that cannot be interpreted as arising from a set of Bernoulli trials. Analyses based on the beta distribution may be appropriate for such data. The SAS® GLIMMIX procedure provides a tool for these analyses using a likelihood based approach in the context of generalized linear mixed models. Since the t and F-distribution based inference employed in this approach relies on asymptotic properties, it is important to understand the sample sizes required to obtain reasonable approximate answers to inference questions. In addition, the complexity of the likelihood functions can lead to numerical issues for optimization algorithms …

Go to article

Non-Normal Data In Agricultural Experiments, W. W. Stroup Apr 2013

Non-Normal Data In Agricultural Experiments, W. W. Stroup

Conference on Applied Statistics in Agriculture

Advances in computers and modeling over the past couple of decades have greatly expanded options for analyzing non-normal data. Prior to the 1990’s, options were largely limited to analysis of variance (ANOVA), either on untransformed data or after applying a variance stabilizing transformation. With or without transformations, this approach depends heavily on the Central Limit Theorem and ANOVA’s robustness. The availability of software such as R’s lme4 package and SAS® PROC GLIMMIX changed the conversation with regard to non-normal data. With expanded options come dilemmas. We have software choices – R and SAS among many others. Models have conditional and …

Go to article

Multivariate Statistical Analysis Of Terrestrial Invertebrate Index Of Biotic Integrity, Bahman Shafii, William J. Price, Norm Merz, Timothy D. Hatten Apr 2013

Multivariate Statistical Analysis Of Terrestrial Invertebrate Index Of Biotic Integrity, Bahman Shafii, William J. Price, Norm Merz, Timothy D. Hatten

Conference on Applied Statistics in Agriculture

The Index of Biotic Integrity (IBI) is designed to measure the changes in ecological and environmental conditions as affected by human disturbances. In practice, the IBI is used in various ecological applications to detect divergence in biological integrity attributable to human actions. Last year during this conference, methodologies for developing an Avian Index of Biotic Integrity (A-IBI) were presented and discussed. The objective of this paper is to demonstrate the construction and statistical evaluation of a multi-metric terrestrial Invertebrate Index of Biotic Integrity (I-IBI) using the same multivariate statistical techniques. Canonical correlation analyses were utilized to select pertinent invertebrate metrics …

Go to article

Characterizing Benthic Macroinvertebrate Community Responses To Nutrient Addition Using Nmds And Baci Analyses, Bahman Shafii, William J. Price, G. Wayne Minshall, Charlie Holderman, Paul J. Anders, Gary Lester, Pat Barrett Apr 2013

Characterizing Benthic Macroinvertebrate Community Responses To Nutrient Addition Using Nmds And Baci Analyses, Bahman Shafii, William J. Price, G. Wayne Minshall, Charlie Holderman, Paul J. Anders, Gary Lester, Pat Barrett

Conference on Applied Statistics in Agriculture

Nonmetric multidimensional scaling (NMDS) is an ordination technique which is often used for information visualization and exploring similarities or dissimilarities in ecological data. In principle, NMDS maximizes rank-order correlation between distance measures and distance in the ordination space. Ordination points are adjusted in a manner that minimizes stress, where stress is defined as a measure of the discordance between the two kinds of distances. Before and After Control Impact (BACI) is a classical analysis of variance method for measuring the potential influence of an environmental disturbance. Such effects can be assessed by comparing conditions before and after a planned activity. …

Go to article

Thou Shall Not Brush Your Teeth While Eating Breakfast: A 7- Step Program For Researchers Previously Hurt In Data Analysis, Edzard Van Santen Apr 2013

Thou Shall Not Brush Your Teeth While Eating Breakfast: A 7- Step Program For Researchers Previously Hurt In Data Analysis, Edzard Van Santen

Conference on Applied Statistics in Agriculture

After years of providing statistical advice to fellow faculty members and graduate students, I have come to realize that it is not necessarily the big issues, but lack of knowledge of basic data analysis principles that get my clients into trouble. My claim is that if researchers and students internalized two basic definitions they would not have any problems analyzing most of their experiments. The definitions of Experimental Unit (EU) as the smallest physical unit to which a treatment may be applied and Experimental Error (Exp. Err.) as the variation among EUs treated alike are the basis for successful data …

Go to article

Comparing Functional Data Analysis And Hysteresis Loops When Testing Treatments For Reducing Heat Stress In Dairy Cows, S. Maynes, A. M. Parkhurst, J. B. Gaughan, T. L. Mader Apr 2013

Comparing Functional Data Analysis And Hysteresis Loops When Testing Treatments For Reducing Heat Stress In Dairy Cows, S. Maynes, A. M. Parkhurst, J. B. Gaughan, T. L. Mader

Conference on Applied Statistics in Agriculture

Various techniques are commonly used to reduce heat stress, including sprayers and misters, shading, and changes in feed. Oftentimes studies are performed where researchers do not control the times when animals use shading or other means available to reduce heat stress, making it hard to test differences between treatments. Two methods are used on data from a study where Holstein cows were given free access to weight activated “cow showers.” Functional data analysis can be used to model body temperature as a function of time and environmental variables such as the Heat Load Index. Differences between treatment groups can be …

Go to article

Five Things I Wish My Mother Had Told Me, About Statistics That Is, Philip M. Dixon Apr 2013

Five Things I Wish My Mother Had Told Me, About Statistics That Is, Philip M. Dixon

Conference on Applied Statistics in Agriculture

I present five short stories, each describing something I wish I had known and appreciated earlier in my statistical life. The five are Simpson's paradox is everywhere, numerical optimization algorithms can be deceived, you can't always trust the Satterthwaite approximation, BLUP's are wonderful things, and It's good to know Reverend Bayes.

Go to article

On The Small Sample Behavior Of Generalized Linear Mixed Models With Complex Experiments, Julie Couton, Walt Stroup Apr 2013

On The Small Sample Behavior Of Generalized Linear Mixed Models With Complex Experiments, Julie Couton, Walt Stroup

Conference on Applied Statistics in Agriculture

Generalized linear mixed models (GLMMs), regardless of the software used to implement them (R, SAS, etc.), can be formulated as conditional or marginal models and can be computed using pseudo-likelihood, penalized quasi-likelihood, or integral approximation methods. While information exists about the small sample behavior of GLMMs for some cases- notably RCBDs with Binomial or count data- little is known about GLMMs for continuous proportions (e.g. Beta) or time-to-event (e.g. Gamma) data or for more complex designs such as the split-plot. In this presentation we review the major model formulation and estimation options and compare their small sample performance for cases …

Go to article

Editor's Preface And Table Of Contents, Weixing Song Apr 2013

Editor's Preface And Table Of Contents, Weixing Song

Conference on Applied Statistics in Agriculture

These proceedings contain papers presented in the twenty-fifth annual Kansas State University Conference on Applied Statistics in Agriculture, held in Manhattan, Kansas, April 28 - April 30, 2013.

Go to article

Bri: The First Five Years, Biosecurity Research Institute Jan 2013

Bri: The First Five Years, Biosecurity Research Institute

Special Publications

This 2012 Annual Report highlights the history of the first five years of the Biosecurity Research Institute (BRI) at Kansas State University. Topics include the facility, its operations and safety, education and training, partners and funding, research highlights and leadership, since the Institute's founding in 2007.

Go to article

Evaluation Of The Effects Of Added Vitamin D3 In Maternal Diets On Sow And Pig Performance (2013), Joshua R. Flohr, Michael D. Tokach, Steven S. Dritz, Joel M. Derouchey, Jim L. Nelssen, J R. Bergstrom Jan 2013

Evaluation Of The Effects Of Added Vitamin D3 In Maternal Diets On Sow And Pig Performance (2013), Joshua R. Flohr, Michael D. Tokach, Steven S. Dritz, Joel M. Derouchey, Jim L. Nelssen, J R. Bergstrom

Kansas Agricultural Experiment Station Research Reports

A total of 84 sows (PIC 1050) and their litters were used to determine the effects of supplementing high levels of dietary maternal vitamin D3 on sow and pig performance, serum 25(OH)D3, milk vitamin D3, neonatal bone mineralization, and neonatal tissue vitamin D3. After breeding, sows were randomly assigned to 1 of 3 dietary vitamin D3 treatments (680, 1,360, or 2,720 IU/lb of complete diets). Sows were bled on d 0 and 100 of gestation, and at farrowing and weaning (d 21). Pig BW was recorded at birth and weaning, and serum was collected from 2 pigs/litter at birth, on …

Go to article

Southwest Research-Extension Center, Field Day 2013 Jan 2013

Southwest Research-Extension Center, Field Day 2013

Kansas Agricultural Experiment Station Research Reports

Report of agricultural research from Southwest Research-Extension Center of Kansas State University.

Go to article

Effects Of An Altered Suckling Method On Piglet Performance During Late Lactation And The Nursery Period (2013), K M. Gourley, H L. Frobose, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz, Robert D. Goodband, Jim L. Nelssen, Duane L. Davis Jan 2013

Effects Of An Altered Suckling Method On Piglet Performance During Late Lactation And The Nursery Period (2013), K M. Gourley, H L. Frobose, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz, Robert D. Goodband, Jim L. Nelssen, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

The effects of an altered suckling method (ALT) on nursery pig performance were studied in a 14-d experiment encompassing late lactation and the early nursery period. A total of 611 pigs (PIC 327 × 1050) nursing 54 sows were used in 2 farrowing groups. Sows were allotted to treatments on d 18 of lactation when all but the 5 lightest-weight pigs from each ALT litter were split-weaned (SW) and moved to the nursery. The lightweight pigs in the ALT litters were paired within parity group such that two litters were combined. These combined litters rotationally suckled (RS) each sow of …

Go to article

Stimulation Of Estrus And Ovulation In Lactating Sows (2013), H L. Frobose, K M. Gourley, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz, Robert D. Goodband, Jim L. Nelssen, Duane L. Davis Jan 2013

Stimulation Of Estrus And Ovulation In Lactating Sows (2013), H L. Frobose, K M. Gourley, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz, Robert D. Goodband, Jim L. Nelssen, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

A total of 53 sows were used to determine the effects of a lactational estrus stimulation strategy on reproductive and litter growth performance. Treatment differences within parity group, multiparous and primiparous, were also considered. Litter size was equalized to 11.6 ± 1.2 pigs at d 2 postfarrowing. At d 18 of lactation, sows were allotted to the control or an altered suckling method (ALT). The ALT sows were placed in adjacent pairs within parity so pigs could be moved between litters by temporarily lifting the divider between the two litters. On d 18, all but the 5 lightest weight pigs …

Go to article

K-State Turfgrass Research 2013, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service Jan 2013

K-State Turfgrass Research 2013, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service

Kansas Agricultural Experiment Station Research Reports

Turfgrass Research 2013 contains results of projects conducted by K-State faculty and graduate students. Some of these results will be presented at the Kansas Turfgrass Field Day, August 1, 2013, at the John C. Pair Horticulture Research Center in Haysville, Kan. Articles included in this Report of Progress present summaries of research projects that were completed recently or will be completed in the next year or two. Specifically, this year's report presents summaries of research on turf establishment and management, variety evaluations, pest management, and water issues and drought.

Go to article

Effects Of Low-, Medium-, And High-Oil Dried Distillers Grains With Solubles On Growth Performance, Nutrient Digestibility, And Fat Quality In Finishing Pigs (2013), A B. Graham, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz, Joel M. Derouchey, Sureemas Nitikanchana, J J. Updike Jan 2013

Effects Of Low-, Medium-, And High-Oil Dried Distillers Grains With Solubles On Growth Performance, Nutrient Digestibility, And Fat Quality In Finishing Pigs (2013), A B. Graham, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz, Joel M. Derouchey, Sureemas Nitikanchana, J J. Updike

Kansas Agricultural Experiment Station Research Reports

A total of 1,480 pigs were used in 3 experiments to determine the effects of dried distillers grains with solubles (DDGS) varying in oil content on growth performance, carcass characteristics, carcass fat quality, and nutrient digestibility in growing-finishing pigs. In Exp. 1, 1,198 pigs (PIC 337 × 1050, initially 101.6 lb) were used to evaluate the effects of corn DDGS with 5.4 or 9.6% oil (as-fed). Pigs were allotted to a cornsoybean meal—based control diet or diets with 20 or 40% of the two DDGS sources. From d 0 to 82, ADG was unaffected by DDGS source or level. Increasing …

Go to article

Ammonia And Hydrogen Sulfide Emissions From Swine Production Facilities In North America: A Meta-Analysis (2013), Zifei Liu, W J. Powers Jan 2013

Ammonia And Hydrogen Sulfide Emissions From Swine Production Facilities In North America: A Meta-Analysis (2013), Zifei Liu, W J. Powers

Kansas Agricultural Experiment Station Research Reports

Ammonia (NH3) and hydrogen sulfide (H2S) emissions from swine production facilities receive considerable attention due to human health and environmental implications. Accurate quantification of farm emissions is essential to ensure compliance with regulatory requirements. The objectives of this study were to provide a review of the literature on NH3 and H2S emissions from swine production facilities in North America with a meta-analysis that integrates results of independent studies, including measured emissions data from both swine houses and manure storage facilities as well as concentration data in the vicinity of swine production facilities. Results from more than 80 studies were identified …

Go to article

Amino Acid Digestibility And Energy Concentration Of Fermented Soybean Meal And Camelina Meal For Swine (2013), A B. Graham, Joel M. Derouchey, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz, R C. Thaler Jan 2013

Amino Acid Digestibility And Energy Concentration Of Fermented Soybean Meal And Camelina Meal For Swine (2013), A B. Graham, Joel M. Derouchey, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz, R C. Thaler

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the amino acid and GE digestibility of fermented soybean meal and camelina meal. For Exp. 1, to determine standardized ileal amino acid digestibility, five growing gilts (BW= 60.4 lb) were surgically fitted with T-cannulas at the terminal ileum and randomly allotted to 1 of 3 dietary treatments in a crossover design with 3 periods. The basal diets were corn starch—based with adequate vitamins and minerals to meet the pigs' requirements. The experimental treatments consisted of the basal diet with 30% fermented soybean meal or 39.25% camelina meal as the sole protein sources. A third …

Go to article

Regression Analysis To Predict Growth Performance From Dietary Net Energy In Growing-Finishing Pigs (2013), Sureemas Nitikanchana, Steven S. Dritz, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Bradley J. White, Jim L. Nelssen Jan 2013

Regression Analysis To Predict Growth Performance From Dietary Net Energy In Growing-Finishing Pigs (2013), Sureemas Nitikanchana, Steven S. Dritz, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Bradley J. White, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Energy concentration in livestock feed is often altered to optimize pig growth performance and feed cost; therefore, an accurate prediction of growth performance as affected by feeding different energy levels is crucial. Data from 41 trials from 17 journal articles, 10 technical memos, and a thesis were used to develop a regression equation to predict ADG or gain to feed (G:F) as influenced by BW and NE content. Linear and quadratic terms of NE, average BW, CP, standardized ileal digestible [SID] lysine, crude fiber, NDF, ADF, fat, and ash, including their interaction terms, were the variables in the regression analysis. …

Go to article

Effects Of Added Zinc And Copper On Growth Performance And Carcass Characteristics Of Finishing Pigs Fed Ractopamine Hcl (2013), Kyle F. Coble, Chad B. Paulk, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 2013

Effects Of Added Zinc And Copper On Growth Performance And Carcass Characteristics Of Finishing Pigs Fed Ractopamine Hcl (2013), Kyle F. Coble, Chad B. Paulk, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 253 finishing pigs (PIC 327 × 1050; initial BW 204 lb) were used in a 28-d study to determine the effects of added Zn (Availa-Zn; Zinpro Corp., Eden Prairie, MN), Cu (Availa-Cu; Zinpro Corp.), or both to diets containing ractopamine HCl (RAC; Paylean; Elanco Animal Health, Greenfield, IN) on growth performance and carcass characteristics. Pens of pigs were randomly assigned to 1 of 5 treatments and balanced on average pig weight with 7 to 8 pigs per pen. Treatments included a control diet without RAC (negative control) and 4 diets containing 9 g/ton RAC with or without …

Go to article

Effects Of Dietary Zinc Level And Ractopamine Hcl On Pork Chop Tenderness And Shelf-Life Characteristics (2013), Chad B. Paulk, Michael D. Tokach, Jim L. Nelssen, Derris D. Burnett, Mathew A. Vaughn, Kelsey J. Phelps, Steven S. Dritz, Joel M. Derouchey, Robert D. Goodband, Terry A. Houser, K D. Haydon, John M. Gonzalez Jan 2013

Effects Of Dietary Zinc Level And Ractopamine Hcl On Pork Chop Tenderness And Shelf-Life Characteristics (2013), Chad B. Paulk, Michael D. Tokach, Jim L. Nelssen, Derris D. Burnett, Mathew A. Vaughn, Kelsey J. Phelps, Steven S. Dritz, Joel M. Derouchey, Robert D. Goodband, Terry A. Houser, K D. Haydon, John M. Gonzalez

Kansas Agricultural Experiment Station Research Reports

A total of 320 finishing pigs (PIC 327 × 1050; initially 216 lb) were utilized to determine the effects of adding Zn to diets containing ractopamine HCl (RAC) on muscle fiber type distribution, fresh chop color, and cooked meat characteristics. Dietary treatments were fed for approximately 35 d and consisted of: a corn-soybean meal—based negative control (CON); a positive control diet with 10 ppm of RAC (RAC+); and the RAC+ diet plus 75, 150, or 225 ppm added Zn from either ZnO or Availa-Zn. Loins from 80 barrow and 80 gilt carcasses were evaluated. No Zn source effect or Zn …

Go to article

Effects Of Dietary Byproduct Feeding Withdrawal Prior To Market On Finishing Pig Growth Performance, Carcass Characteristics, Carcass Fat Quality, Intestinal Weights, And Economics (2013), Kyle F. Coble, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz, Terry A. Houser, Brandon L. Goehring, M J. Azain Jan 2013

Effects Of Dietary Byproduct Feeding Withdrawal Prior To Market On Finishing Pig Growth Performance, Carcass Characteristics, Carcass Fat Quality, Intestinal Weights, And Economics (2013), Kyle F. Coble, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz, Terry A. Houser, Brandon L. Goehring, M J. Azain

Kansas Agricultural Experiment Station Research Reports

A total of 288 pigs (PIC 327 × 1050; initially 84.7 lb) were used in an 88-d study to determine the timing of high-fiber ingredient removal from the diet prior to marketing to optimize growth performance, carcass characteristics (primarily yield), carcass fatty acid composition, and economics. Two diet types, a corn-soybean meal control diet with low NDF (9.3%) and a high-fiber, high-NDF (19%) diet that contained 30% dried distillers grains with solubles (DDGS) and 19% wheat middlings (midds) were used throughout the study. Pens of pigs were randomly allotted to 1 of 6 dietary feeding strategies with 8 pigs per …

Go to article

Influence Of Copper Sulfate And Tribasic Copper Chloride On Feed Intake Preference In Finishing Pigs (2013), Kyle F. Coble, Korrin N. Card, Joel M. Derouchey, Michael D. Tokach, Jason C. Woodworth, Robert D. Goodband, Steven S. Dritz, J Usry Jan 2013

Influence Of Copper Sulfate And Tribasic Copper Chloride On Feed Intake Preference In Finishing Pigs (2013), Kyle F. Coble, Korrin N. Card, Joel M. Derouchey, Michael D. Tokach, Jason C. Woodworth, Robert D. Goodband, Steven S. Dritz, J Usry

Kansas Agricultural Experiment Station Research Reports

A total of 150 pigs (PIC 327 × 1050; initially 191 lb BW) were used in a 15-d study to determine if pigs have a preference for diets that contain added Cu from either copper sulfate (CuSO4) or tribasic copper chloride (TBCC). Pens of pigs were randomly allotted to 1 of 3 dietary preference comparisons with 10 replications per comparison. Treatment diets used were a corn-soybean meal control with no supplemental Cu, or the control diet with 150 ppm of added Cu from either CuSO4 or TBCC. Pens contained two feeders, each with 1 of 2 treatment diets with feeders …

Go to article

Effects Of Copper Source (Intellibond C Or Copper Sulfate) On Growth Performance, Carcass Characteristics, Pen Cleanliness, And Economics In Finishing Pigs, Kyle F. Coble, Steven S. Dritz, J Usry, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen Jan 2013

Effects Of Copper Source (Intellibond C Or Copper Sulfate) On Growth Performance, Carcass Characteristics, Pen Cleanliness, And Economics In Finishing Pigs, Kyle F. Coble, Steven S. Dritz, J Usry, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

A total of 1,143 pigs (PIC 337 × 1050, initially 55.3 lb) were used to determine the effects of tribasic copper chloride (TBCC; Intellibond C; Micronutrients Inc., Indianapolis, IN) or copper sulfate (CuSO4) on growth performance, carcass characteristics, pen cleanliness, and economics in a 111-d study. Pens of pigs were randomly allotted to 1 of 6 dietary treatments and balanced based on average pen weight in a completely randomized design with 25 to 28 pigs per pen and 8 pens per treatment. Treatment diets included a corn-soybean meal positive control, a high by-product diet with 30% dried distillers grains with …

Go to article

Effects Of Added Zinc In Diets With Ractopamine Hcl On Growth Performance, Carcass Characteristics, And Zinc Concentrations In Plasma, Loin, And Liver Of Finishing Pigs (2013), Chad B. Paulk, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz, John M. Gonzalez, Joel M. Derouchey, Robert D. Goodband, G M. Hill, K D. Haydon Jan 2013

Effects Of Added Zinc In Diets With Ractopamine Hcl On Growth Performance, Carcass Characteristics, And Zinc Concentrations In Plasma, Loin, And Liver Of Finishing Pigs (2013), Chad B. Paulk, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz, John M. Gonzalez, Joel M. Derouchey, Robert D. Goodband, G M. Hill, K D. Haydon

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the effects of added Zn from zinc oxide (ZnO) or Availa-Zn (AZ; Zinpro, Eden Prairie, MN) on growth performance and carcass characteristics of finishing pigs fed ractopamine HCl (RAC; Paylean; Elanco Animal Health, Greenfield, IN). In Exp. 1, a total of 320 pigs (PIC 327 × 1050, initially 215.9 lb) were used in a 35-d study. Pens of pigs were randomly allotted to 1 of 8 dietary treatments, with either 2 barrows or 2 gilts per pen and 20 pens per treatment. Dietary treatments included: a corn-soybean meal—based negative control (0.66% standardized ileal digestible …

Go to article

Effects Of High Levels Of Phytase (Ronozyme Hiphos) In Low-Lysine Diets On The Growth Performance Of Nursery Pigs (2013), Kari Beth Langbein, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz, Joel M. Derouchey, J R. Bergstrom Jan 2013

Effects Of High Levels Of Phytase (Ronozyme Hiphos) In Low-Lysine Diets On The Growth Performance Of Nursery Pigs (2013), Kari Beth Langbein, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz, Joel M. Derouchey, J R. Bergstrom

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to determine the effects of added phytase in nursery pig diets formulated at or below their dietary lysine requirements. In Exp. 1, a total of 360 nursery pigs (PIC 327 × 1050, initially 27.3 lb) were used in an 18-d study with 5 pigs per pen and 18 pens per treatment in a university research facility. Pens of pigs were randomly allotted to 1 of 4 dietary treatments arranged in a 2 × 2 factorial with main effects of lysine level (adequate; 1.2% standardized ileal digestible [SID] lysine vs. marginal; 1.05% SID lysine) and phytase level …

Go to article

Effects Of Fine-Grinding Corn Or Dried Distillers Grains With Solubles And Diet Form On Growth Performance And Caloric Efficiency Of 25- To 50-Lb Nursery Pigs (2013), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 2013

Effects Of Fine-Grinding Corn Or Dried Distillers Grains With Solubles And Diet Form On Growth Performance And Caloric Efficiency Of 25- To 50-Lb Nursery Pigs (2013), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 687 pigs (PIC 1050 barrows; initially 25.5 lb BW and 37 d of age) were used in a 21-d study to determine the effects of fine-grinding corn or dried distillers grains with solubles (DDGS) and diet form on nursery pig performance and caloric efficiency. Pens of pigs were balanced by initial BW and randomly allotted to 1 of 10 dietary treatments with 14 replications per treatment. There were 5 pigs per pen in two groups of nursery pigs. The 10 experimental diets included 4 corn-soybean meal—based diets consisting of: (1) corn ground to ~638 μ, in meal …

Go to article

Next Last