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Kansas Agricultural Experiment Station Research Reports

2014

Animal Sciences

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Articles 1 - 30 of 73

Full-Text Articles in Life Sciences

Director's Report Of Research In Kansas 2014, Kansas State University. Agricultural Experiment Station Jan 2014

Director's Report Of Research In Kansas 2014, Kansas State University. Agricultural Experiment Station

Kansas Agricultural Experiment Station Research Reports

This report contains the title, author, and publication information for manuscripts published by station scientists.

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High-Dose Anabolic Implants Are Not All The Same For Growth And Carcass Traits Of Feedlot Steers: A Meta-Analysis (2014), Christopher D. Reinhardt Jan 2014

High-Dose Anabolic Implants Are Not All The Same For Growth And Carcass Traits Of Feedlot Steers: A Meta-Analysis (2014), Christopher D. Reinhardt

Kansas Agricultural Experiment Station Research Reports

The beneficial effects of anabolic implants with respect to feedlot performance and carcass weight are nearly unequivocal. Although individual prospective studies may have concluded that there are no significant differences between implant dosages, modern production economics demand that any differences, however small, must be gleaned if they are real. The objective of this study was to conduct a meta-analysis of existing data from peer-reviewed as well as industry sources to compare the effects of different doses of anabolic implants on feedlot performance and carcass traits of steers.

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Performance And Health Effects Of Zuprevo 18% In Newly Received, Highly Stressed Beef Cattle (2014), Ethan R. Schlegel, Dale A. Blasi, William R. Hollenbeck, Brandon E. Oleen, David G. Renter, Mark F. Spire Jan 2014

Performance And Health Effects Of Zuprevo 18% In Newly Received, Highly Stressed Beef Cattle (2014), Ethan R. Schlegel, Dale A. Blasi, William R. Hollenbeck, Brandon E. Oleen, David G. Renter, Mark F. Spire

Kansas Agricultural Experiment Station Research Reports

The objective of this study was to determine the health and performance effects of Zuprevo 18% (tildipirosin, 4 mg/kg body weight) during a 42-day backgrounding period when administered to high-risk transported cattle within 24 hours after arrival.

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Evaluation Of Ammoniated Wheat Straw In Receiving And Growing Diets, E. R. Schlegel, S. P. Montgomery, J. W. Waggoner, C. I. Vahl, W. R. Hollenbeck, B. E. Oleen, D. A. Blasi Jan 2014

Evaluation Of Ammoniated Wheat Straw In Receiving And Growing Diets, E. R. Schlegel, S. P. Montgomery, J. W. Waggoner, C. I. Vahl, W. R. Hollenbeck, B. E. Oleen, D. A. Blasi

Kansas Agricultural Experiment Station Research Reports

Drought conditions in the past have created a shortage of prairie hay and other grass hays that are used as roughage sources for growing beef diets. Ammoniated wheat straw historically has been available for purchase at a lower than prairie hay. Although some research has been conducted using ammoniated wheat straw as a feedstuff for mature cows, little information is available on the use and outcome its inclusion in beef cattle receiving and growing diets. Our objective was to compare the performance outcomes of newly arrived and growing calves fed total mixed rations containing either ammoniated wheat straw, wheat straw, …

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Effects Of Diet Bulk Density On Mixing Uniformity (2014), Lori L. Thomas, Charles R. Stark, C H. Fahrenholtz, Kyle F. Coble, S Hayashi, Marut Saensukjaroenphon, Jason C. Woodworth, Robert D. Goodband Jan 2014

Effects Of Diet Bulk Density On Mixing Uniformity (2014), Lori L. Thomas, Charles R. Stark, C H. Fahrenholtz, Kyle F. Coble, S Hayashi, Marut Saensukjaroenphon, Jason C. Woodworth, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

The objective of this study was to determine how the time required to create a uniformly mixed batch of feed is influenced by diets that differ in bulk density. Three 60-lb batches of a corn-soybean meal—based diet (high bulk density) or a high-fiber diet (low bulk density) containing 30% dried distiller's grains with solubles (DDGS), and 19% wheat midds were prepared. The ingredients for each batch were placed in a 60-lb capacity experimental double-ribbon mixer with all batches containing 0.35% table salt. Ten samples were obtained from different parts of the mixer for each batch of feed after 60, 120, …

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Effects Of An Algae-Modified Montmorillonite Clay On Growth Performance Of Nursery Pigs Fed Diets Contaminated With Low Levels Of Deoxynivalenol (2014), Suzy Q. Fowler, Hyatt L. Frobose, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz, Robert D. Goodband, Jim L. Nelssen Jan 2014

Effects Of An Algae-Modified Montmorillonite Clay On Growth Performance Of Nursery Pigs Fed Diets Contaminated With Low Levels Of Deoxynivalenol (2014), Suzy Q. Fowler, Hyatt L. Frobose, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

A total of 360 barrows (PIC 1050; initially 25.1 lb and 45 d of age) were used in a 21-d growth trial to evaluate the effects of an algae-modified montmorillonite clay (AMMC) on nursery pig performance when fed diets contaminated with low levels of deoxynivalenol (DON). Pigs were allotted to pens by weight, and pens were randomly assigned to 1 of 9 dietary treatments arranged in a 3 × 3 factorial with main effects of DON (0, 1.5 ppm, or 3.0 ppm) and AMMC inclusion (0, 0.17%, or 0.50% ). There were 5 pigs per pen and 8 pens per …

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Effects Of Pepsoygen Processing Method On Nursery Pig Growth Performance (2014), A B. Clark, Hyatt L. Frobose, Joel M. Derouchey, Michael D. Tokach, Steven S. Dritz, Robert D. Goodband, Jason C. Woodworth Jan 2014

Effects Of Pepsoygen Processing Method On Nursery Pig Growth Performance (2014), A B. Clark, Hyatt L. Frobose, Joel M. Derouchey, Michael D. Tokach, Steven S. Dritz, Robert D. Goodband, Jason C. Woodworth

Kansas Agricultural Experiment Station Research Reports

A total of 292 weanling pigs (PIC 327 × 1050; 13.3 ± 2.4 lb BW and 21 d of age) were used in a 31-d experiment evaluating the effects of alternative PepSoyGen processing methods for nursery pig diets. There were 11 replicate pens per treatment and 6 or 7 pigs per pen. At weaning, pigs were allotted to pens by initial weight to 1 of 4 treatments in a completely randomized design. A 3-phase diet series was used with treatment diets fed during Phase 1 (d 0 to 7) and Phase 2 (d 7 to 21), with a common diet …

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Preliminary Studies On In Situ Monitoring Of Lactose Crystallization Using Focused Beam Reflectance Measurement (2014), Karthik Pandalaneni, Jayendra K. Amamcharla Jan 2014

Preliminary Studies On In Situ Monitoring Of Lactose Crystallization Using Focused Beam Reflectance Measurement (2014), Karthik Pandalaneni, Jayendra K. Amamcharla

Kansas Agricultural Experiment Station Research Reports

Isothermal crystallization of lactose was studied at supersaturated concentrations (w/w) of 50%, 55%, and 60% at temperatures 20ºC and 30ºC using an in situ system, focused beam reflectance measurement (FBRM), and a refractometer. The FBRM data were compared with Brix readings taken over time using a refractometer during isothermal crystallization. Chord length distribution obtained from FBRM in the ranges of<50>μm (fine crystals) and 50 to 300 μm (coarse crystals) were observed and evaluated in relation to the extent of crystallization and rate constant results deduced from the refractometer measurements. The measured fine crystal counts increased with supersaturated concentration and …

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Effects Of Electrostatic Particle Ionization On Air Quality, Emissions, And Growth Performance Of Pigs Housed In A Thermo-Regulated Facility (2014), Jon A. De Jong, Korrin N. Card, Joel M. Derouchey, M Baumgartner, Peter J. Tomlinson Jan 2014

Effects Of Electrostatic Particle Ionization On Air Quality, Emissions, And Growth Performance Of Pigs Housed In A Thermo-Regulated Facility (2014), Jon A. De Jong, Korrin N. Card, Joel M. Derouchey, M Baumgartner, Peter J. Tomlinson

Kansas Agricultural Experiment Station Research Reports

Two identical 200-head nurseries at the Kansas State University Segregated Early Weaning Facility were used for 5 consecutive all-in, all-out groups to determine the effect of electrostatic particle ionization (EPI) on air quality, emissions, and growth performance of pigs housed in a thermo-regulated facility. During five 6-wk periods (13 to 51 lb BW), the EPI system was used in one barn for a complete group and then used in the other barn for the next group. At the beginning of each 6-wk trial period, pigs were randomly allotted to pens based on average pig weight. Air measurements and pig growth …

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Effects Of Pelleting And Diet Type On Growth Performance, Carcass Yield, And Iodine Value Of Finishing Pigs (2014), Jeremiah E. Nemechek, Michael D. Tokach, Steven S. Dritz, Robert D. Goodband, Joel M. Derouchey, Jason C. Woodworth Jan 2014

Effects Of Pelleting And Diet Type On Growth Performance, Carcass Yield, And Iodine Value Of Finishing Pigs (2014), Jeremiah E. Nemechek, Michael D. Tokach, Steven S. Dritz, Robert D. Goodband, Joel M. Derouchey, Jason C. Woodworth

Kansas Agricultural Experiment Station Research Reports

A total of 288 pigs (PIC 327 × 1050, initially 107.0 lb BW) were used in an 87-d trial to determine the effects of diet form and corn oil on growth performance, carcass yield, and iodine value (IV) of growing-finishing pigs. Treatments were arranged in a 2 × 3 factorial with the main effects of diet form and oil source. The 2 diet forms were meal or pellet. The 3 dietary formulations were: (1) corn-soybean meal—based control, (2) control with 30% dried distillers grains with solubles (DDGS) and 19% wheat middlings, and (3) control with 3% corn oil. No diet …

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Evaluation Of Specialty Soy Protein Sources On Nursery Pig Performance (2014), Kyle E. Jordan, Marcio Antonio Dornelles Goncalves, Michael D. Tokach, Steven S. Dritz, Robert D. Goodband, Joel M. Derouchey, Jason C. Woodworth Jan 2014

Evaluation Of Specialty Soy Protein Sources On Nursery Pig Performance (2014), Kyle E. Jordan, Marcio Antonio Dornelles Goncalves, Michael D. Tokach, Steven S. Dritz, Robert D. Goodband, Joel M. Derouchey, Jason C. Woodworth

Kansas Agricultural Experiment Station Research Reports

A 35-d growth trial was conducted to evaluate the effects of a new soy protein source, Nutrivance (TechMix, Stewart, MN), on nursery pig growth performance. Nutrivance is a modified soy protein produced via a proprietary process combining extraction and enzymatic treatment of soybeans. Pigs (n = 1,188, PIC 337 × 1050; initially 9.8 lb BW) were weaned at 21 d of age and allotted by weight to pens with 27 pigs per pen. Pigs were fed a common diet for 15 d before the start of the study. Pens of pigs (13.5 lb BW) were then allotted to 1 of …

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Determining The Optimal Sampling Method To Estimate The Mean And Standard Deviation Of Pig Body Weights Within A Population (2014), Chad B. Paulk, Michael D. Tokach, Steven S. Dritz, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband Jan 2014

Determining The Optimal Sampling Method To Estimate The Mean And Standard Deviation Of Pig Body Weights Within A Population (2014), Chad B. Paulk, Michael D. Tokach, Steven S. Dritz, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

The accuracy and precision of pig subsampling methods can determine the swine producer's ability to sell pigs at optimal market BW and reduce economic discounts. The first objective of this experiment was to determine the time required to weigh pigs for different sampling methods used to estimate the mean and SD of a population. The second objective was to define the optimal sampling method considering the time required to weigh pigs as well as the precision and accuracy of each sampling method. A total of 68 pens of pigs (359 × 1050, PIC, Hendersonville, TN; 169.8 lb BW) in 2 …

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Comparison Of Soybean Oil And Different Sources Of Corn Oil On Nursery Pig Growth Performance (2014), Kyle E. Jordan, Marcio Antonio Dornelles Goncalves, Jeremiah E. Nemechek, Jon A. Dejong, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz, Joel M. Derouchey, Jason C. Woodworth Jan 2014

Comparison Of Soybean Oil And Different Sources Of Corn Oil On Nursery Pig Growth Performance (2014), Kyle E. Jordan, Marcio Antonio Dornelles Goncalves, Jeremiah E. Nemechek, Jon A. Dejong, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz, Joel M. Derouchey, Jason C. Woodworth

Kansas Agricultural Experiment Station Research Reports

A total of 350 pigs (PIC 1050; initially 26.45 ± 0.09 lb and 45 d of age) were used in a 21-d study to compare the effects of soy oil and 2 sources of corn oil on nursery pig growth performance. The 7 dietary treatments consisted of a corn-soybean meal—based control diet with no added oil or the control diet with 2.5 or 5% soybean oil (NE = 3,422 kcal/lb) or corn oil from 2 different sources (NE = 3,383 kcal/kg for both sources). There were 5 pigs per pen and 10 pens per treatment. Pig weight and feed disappearance …

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Effects Of Wheat Source And Particle Size In Pelleted Diets On Finishing Pig Growth Performance, Caloric Efficiency, And Carcass Characteristics (2014), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Chad B. Paulk, Jason C. Woodworth, Cassandra K. Jones, Charles R. Stark, Steven S. Dritz Jan 2014

Effects Of Wheat Source And Particle Size In Pelleted Diets On Finishing Pig Growth Performance, Caloric Efficiency, And Carcass Characteristics (2014), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Chad B. Paulk, Jason C. Woodworth, Cassandra K. Jones, Charles R. Stark, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 576 pigs (PIC 327 × 1050; initially 96 lb BW) from 2 consecutive finishing groups were used to determine the effects of wheat source and particle size of pelleted diets on finishing pig growth performance, caloric efficiency, and carcass characteristics. Pigs were allotted randomly to pens upon entry into the finisher. Pens of pigs were balanced by initial BW and randomly allotted to 1 of 6 dietary treatments with 12 replications per treatment and 8 pigs per pen in two groups of finisher pigs. The experimental diets all had the same wheat-soybean meal formulation, with the 6 …

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Formation Of Fines During The Pelleted Feed Manufacturing Process And The Resulting Differences In Nutrient Composition Of Fines And Pellets (2014), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jason C. Woodworth, Steven S. Dritz, Jake A. Erceg, L Mckinney, G Smith Jan 2014

Formation Of Fines During The Pelleted Feed Manufacturing Process And The Resulting Differences In Nutrient Composition Of Fines And Pellets (2014), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jason C. Woodworth, Steven S. Dritz, Jake A. Erceg, L Mckinney, G Smith

Kansas Agricultural Experiment Station Research Reports

A 3-wk study was conducted at a commercial feed mill in northwest Iowa to determine where the formation of fines occurs during pelleted feed manufacturing and if differences are present in nutrient composition between fines and pellets. During the study, 1,781pelleted feed samples were collected from 4 swine and 2 turkey diets. Samples were collected from 4 different locations throughout the mill to determine progression of fines formation during the manufacturing process. These locations included the pellet mill, pellet cooler, fat coater, and at load-out. Samples were taken on 7 to 10 different runs for each diet throughout the 3-wk …

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Effects Of Different Feed Mills And Conditioning Temperature Of Pelleted Diets On Nursery Pig Performance And Feed Preference From 14 To 50 Lb (2014), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 2014

Effects Of Different Feed Mills And Conditioning Temperature Of Pelleted Diets On Nursery Pig Performance And Feed Preference From 14 To 50 Lb (2014), 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 644 pigs (PIC 1050 or 327 × 1050, initial BW~14 lb) were used in 3 experiments to determine possible explanations for poorer pig performance in previous studies with pigs fed pelleted diets compared with those fed meal diets. Therefore, we examined feed pelleted from different mills as well as conditioning temperature as factors influencing our previous results. In Experiment 1, pens of pigs were randomly allotted to 1 of 3 dietary treatments with 10 pens per treatment and 7 pigs per pen. The 3 dietary treatments used the identical corn-soybean meal—based formulation and were mixed from the …

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Effects Of Hard Red Winter Wheat Particle Size In Meal Diets On Finishing Pig Growth Performance, Diet Digestibility, And Caloric Efficiency (2014), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jason C. Woodworth, Chad B. Paulk, Cassandra K. Jones, Charles R. Stark, Steven S. Dritz Jan 2014

Effects Of Hard Red Winter Wheat Particle Size In Meal Diets On Finishing Pig Growth Performance, Diet Digestibility, And Caloric Efficiency (2014), Jon A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jason C. Woodworth, Chad B. Paulk, Cassandra K. Jones, Charles R. Stark, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 288 pigs (PIC 327 × 1050; initially 96.4 lb) were used in an 83-d study to determine the effects of hard red winter wheat particle size on finishing pig growth performance, diet digestibility, and caloric efficiency. Pens of pigs were balanced by initial BW and randomly allotted to 1 of 3 treatments with 8 pigs per pen and 12 pens per treatment. The same wheat-soybean meal—based diets were used for all treatments. Diets were fed in three phases in meal form. The 3 dietary treatments were hard red winter wheat ground with a hammer mill to 730, …

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Effects Of Feeding Different Dietary Net Energy Levels To Growing-Finishing Pigs When Dietary Lysine Is Adequate (2014), Sureemas Nitikanchana, Steven S. Dritz, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Bradley J. White Jan 2014

Effects Of Feeding Different Dietary Net Energy Levels To Growing-Finishing Pigs When Dietary Lysine Is Adequate (2014), Sureemas Nitikanchana, Steven S. Dritz, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Bradley J. White

Kansas Agricultural Experiment Station Research Reports

A total of 543 pigs (PIC 1050 × 327: PIC Hendersonville, TN) were used in 2 consecutive experiments with initial BW of 105 and 125 lb in Experiments 1 and 2, respectively. The objective was to validate the regression equations predicting growth rate and feed efficiency of growing-finishing pigs based on dietary NE content by comparing actual and predicted performance. Thus, the 5 treatments included diets with: (1) 30% dried distillers grains with solubles (DDGS), 20% wheat middlings, and 4 to 5% soybean hulls (low-energy); (2) 20% wheat middlings and 4 to 5% soybean hulls (low-energy); (3) a corn-soybean meal …

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Effects Of 30% Dried Distillers Grains With Solubles And 5% Added Fat Prior To Slaughter On Growth Performance, Carcass Characteristics, And Economics Of Finishing Pigs (2014), Kyle F. Coble, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jason C. Woodworth, Steven S. Dritz Jan 2014

Effects Of 30% Dried Distillers Grains With Solubles And 5% Added Fat Prior To Slaughter On Growth Performance, Carcass Characteristics, And Economics Of Finishing Pigs (2014), Kyle F. Coble, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jason C. Woodworth, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two groups of pigs (n = 1,258, initially 233.2 lb; group 1 PIC 337 × 1050; group 2 PIC 327 × 1050) were used in a 20-d experiment to determine the effects of 30% dried distillers grains with solubles (DDGS) and 5% added fat prior to slaughter on growth performance, carcass characteristics, and economics of finishing pigs. There were a total of 20 replications per treatment. All pigs were fed a common diet with 30% DDGS until 20 d prior to slaughter, at which point they were weighed and allotted to dietary treatments. The dietary treatments were arranged in a …

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Effects Of Copper Sources (Copper Sulfate And Mintrex Cu) On Growth Performance, Carcass Characteristics, Barn Cleaning, And Economics In Finishing Pigs (2014), Kyle F. Coble, Joel M. Derouchey, Michael D. Tokach, Steven S. Dritz, B V. Lawrence, J Escobar, Jason C. Woodworth, Robert D. Goodband, N Boettger Jan 2014

Effects Of Copper Sources (Copper Sulfate And Mintrex Cu) On Growth Performance, Carcass Characteristics, Barn Cleaning, And Economics In Finishing Pigs (2014), Kyle F. Coble, Joel M. Derouchey, Michael D. Tokach, Steven S. Dritz, B V. Lawrence, J Escobar, Jason C. Woodworth, Robert D. Goodband, N Boettger

Kansas Agricultural Experiment Station Research Reports

A total of 1,196 mixed-sex pigs (PIC 337 × 1050, initially 56.7 lb) were used in a 111-d study. Pens of pigs were allotted to 1 of 6 dietary treatments in a randomized incomplete block design, with 26 pigs per pen (similar number of barrows and gilts) and 7 to 8 pens per treatment. All diets contained 17 ppm copper from copper sulfate (CuSO4) in the premix and were formulated on a standardized ileal digestible (SID) lysine basis at 0.05% below the estimated requirement of the average pig weight during each feeding phase. Treatments included a control diet with no …

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Effects Of Added Zinc During The Grower And/Or Finisher Phase On Growth Performance And Carcass Characteristics Of Finishing Pigs Fed Diets With Or Without Ractopamine Hcl (2014), Chad B. Paulk, Michael D. Tokach, Steven S. Dritz, John M. Gonzalez, Joel M. Derouchey, Robert D. Goodband Jan 2014

Effects Of Added Zinc During The Grower And/Or Finisher Phase On Growth Performance And Carcass Characteristics Of Finishing Pigs Fed Diets With Or Without Ractopamine Hcl (2014), Chad B. Paulk, Michael D. Tokach, Steven S. Dritz, John M. Gonzalez, Joel M. Derouchey, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 1,197 pigs (PIC 337 × 1050) were used in a 72-d study to determine the effects of added zinc from zinc oxide (ZnO) fed in grower (d 0 to 45; initially 129.6 lb) and finisher (d 45 to 72; initially 218.3 lb) pig diets with or without ractopamine HCl (RAC; Paylean; Elanco Animal Health, Greenfield, IN) on growth performance and carcass characteristics. Pens were randomly assigned to a 2 × 2 × 2 factorial arrangement in a split-plot design. The whole plot consisted of diets with or without 75 ppm added Zn from d 0 to 45, …

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Effects Of Standardized Ileal Digestible Lysine Level And Added Tribasic Copper Chloride On Growth Performance, Carcass Characteristics, And Economics In Finishing Pigs (2014), Kyle F. Coble, Steven S. Dritz, J Usry, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jason C. Woodworth Jan 2014

Effects Of Standardized Ileal Digestible Lysine Level And Added Tribasic Copper Chloride On Growth Performance, Carcass Characteristics, And Economics In Finishing Pigs (2014), Kyle F. Coble, Steven S. Dritz, J Usry, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jason C. Woodworth

Kansas Agricultural Experiment Station Research Reports

A total of 1,267 pigs (PIC 337 × 1050; initially 58.3 lb) were used in a 120-d study. Before initiating the trial, pigs were fed a common diet for 9 d containing 188 ppm Cu from tribasic copper chloride (TBCC). On d 0, pens of pigs were allotted to 1 of 8 dietary treatments in a randomized complete block design with 26 to 27 pigs (similar number of barrows and gilts) per pen and 6 pens per treatment. Treatments were arranged in a split-plot design. Whole-plot treatments were 2 levels of the estimated standardized ileal digestible lysine (SID Lys) requirement …

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Effects Of A Novel Protease Enzyme (Cibenza Dp100) On Finishing Pig Growth Performance And Carcass Characteristics (2014), Ethan W. Stephenson, Joel M. Derouchey, J Escobar, Jason C. Woodworth, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 2014

Effects Of A Novel Protease Enzyme (Cibenza Dp100) On Finishing Pig Growth Performance And Carcass Characteristics (2014), Ethan W. Stephenson, Joel M. Derouchey, J Escobar, Jason C. Woodworth, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,170 pigs (PIC 337 × 1050; initial BW 56.3 lb) were used in a 131-d study to determine the effects of a protease enzyme on growth performance and carcass characteristics of finishing pigs. Dietary treatments consisted of: (1) a positive control diet formulated to provide 90% of the standardized ileal digestible (SID) lysine requirement for these pigs; (2) a negative control diet formulated to provide 90% of the SID lysine requirement minus the expected nutrient release (both amino acids and dietary energy) from the protease enzyme (CIBENZA DP100, Novus International, Inc., St. Charles, MO), and (3) the …

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Effects Of Increasing Crystalline Amino Acids In Sorghum- Or Corn-Based Diets On Nursery Pig Growth Performance (2014), Kyle E. Jordan, Jeremiah E. Nemechek, Marcio Antonio Dornelles Goncalves, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz, Joel M. Derouchey, Jason C. Woodworth Jan 2014

Effects Of Increasing Crystalline Amino Acids In Sorghum- Or Corn-Based Diets On Nursery Pig Growth Performance (2014), Kyle E. Jordan, Jeremiah E. Nemechek, Marcio Antonio Dornelles Goncalves, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz, Joel M. Derouchey, Jason C. Woodworth

Kansas Agricultural Experiment Station Research Reports

A total of 300 pigs (PIC 1050; initially 23.3 lb BW) were used in a 21-d study to compare the effects of increasing crystalline amino acids in sorghum- and corn-based diets on nursery pig growth performance. Treatments with 5 pigs per pen and 10 pens per treatment were arranged in a 2 × 3 factorial with main effects of grain source (sorghum vs. corn) and crystalline amino acid supplementation (low, medium, or high). Amino acid ratios to lysine as well as standardized ileal digestibility coefficients used were set by NRC (20123). Because replacing increasing amounts of soybean meal with crystalline …

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Effects Of Dietary Zinc Oxide And Chlortetracycline On Nursery Pig Growth Performance (2014), Julie Ann Feldpausch, Jon A. Dejong, Michael D. Tokach, Steven S. Dritz, Jason C. Woodworth, Harvey M. Scott, Jim L. Nelssen, Robert D. Goodband, Raghavendra G. Amachawadi Jan 2014

Effects Of Dietary Zinc Oxide And Chlortetracycline On Nursery Pig Growth Performance (2014), Julie Ann Feldpausch, Jon A. Dejong, Michael D. Tokach, Steven S. Dritz, Jason C. Woodworth, Harvey M. Scott, Jim L. Nelssen, Robert D. Goodband, Raghavendra G. Amachawadi

Kansas Agricultural Experiment Station Research Reports

A total of 240 weaned pigs (PIC 1050; initially 13.4 lb) were used in a 47-d study to compare the effects of added Zn from zinc oxide (ZnO), alone or in combination with a low or high dose of chlortetracycline (CTC), on nursery pig performance. Pigs were allotted to pens at weaning (d 0) and fed a common starter diet with no antimicrobial for 5 d before the start of the experiment. On d 5, pens of 5 pigs were allotted to 1 of 6 dietary treatments in a randomized complete block design with 8 replications per treatment. Dietary treatments …

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Yeast Product Supplementation Influences Feeding Behavior And Measures Of Immune Function In Transition Dairy Cows (2014), Kai Yuan, Mary Beth Muckey, Luis Mendonca, Lindsey E. Hulbert Jan 2014

Yeast Product Supplementation Influences Feeding Behavior And Measures Of Immune Function In Transition Dairy Cows (2014), Kai Yuan, Mary Beth Muckey, Luis Mendonca, Lindsey E. Hulbert

Kansas Agricultural Experiment Station Research Reports

Yeast supplementation has been shown to increase feed intake and production in some studies with early lactation dairy cows, but the mechanisms underlying this effect remain unknown. The objective of this study was to assess the effects of supplementing a yeast product derived from Saccharomyces cerevisiae on production, feeding behavior, and immune function in cows during the transition to lactation. When fed for 3 weeks before calving through 6 weeks after calving, supplementation altered feeding behavior as well as responsiveness to vaccination and gut immunoglobulin secretion. Results suggest that yeast products can modulate several aspects of immune function and promote …

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Effects Of Postpartum Treatment With Non-Steroidal Anti-Inflammatory Drugs On Milk Production And Culling Risk In Dairy Cattle (2014), Abigail J. Carpenter, Caroline M. Ylioja, Claudio F. Vargas, Laman K. Mamedova, L. Mendonca, Johann F. Coetzee, L. Hollis, R. Gehring, B. Bradford Jan 2014

Effects Of Postpartum Treatment With Non-Steroidal Anti-Inflammatory Drugs On Milk Production And Culling Risk In Dairy Cattle (2014), Abigail J. Carpenter, Caroline M. Ylioja, Claudio F. Vargas, Laman K. Mamedova, L. Mendonca, Johann F. Coetzee, L. Hollis, R. Gehring, B. Bradford

Kansas Agricultural Experiment Station Research Reports

Inflammation during early lactation is common in dairy cattle, and a high degree of inflammation during this time has recently been associated with both lower productivity and greater risk of disease during that lactation. Early lactation treatments with two non-steroidal anti-inflammatory drugs were compared with a placebo treatment to evaluate effects on whole-lactation productivity and retention in the herd. Both meloxicam and sodium salicylate increased whole-lactation milk and milk protein yields by 6 to 9%, despite being administered for only 1 or 3 days in early lactation, respectively. In addition, meloxicam treatment tended to decrease the risk of cows leaving …

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Milking Time During Periods Of Heat Stress: Part Of The Solution Or Part Of The Problem? (2014), L. Rocha, Lindsey E. Hulbert, Filippe Scortegagna, Benjamin Voelz, L. Mendonca Jan 2014

Milking Time During Periods Of Heat Stress: Part Of The Solution Or Part Of The Problem? (2014), L. Rocha, Lindsey E. Hulbert, Filippe Scortegagna, Benjamin Voelz, L. Mendonca

Kansas Agricultural Experiment Station Research Reports

Milking time may be a stressful event for lactating dairy cows during summer. Increases in body temperatures because of crowding in the milk parlor holding pen may contribute to increased heat stress. The objective of this extension project was to evaluate the effectiveness of heat stress abatement in milking facilities from two Kansas commercial dairies. Vaginal temperatures at milking were lower than vaginal temperatures before milking in one of the dairies. The lower vaginal temperatures at milking, however, were not observed in the other dairy at all milkings, likely because of differences in efficacy of heat abatement strategies. Milking facilities …

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Luteolysis And Pregnancy Outcomes After Change In Dose Delivery Of Prostaglandin F2Α In A 5-Day Timed Artificial Insemination Program In Dairy Cows (2014), Jeffrey S. Stevenson, Stephanie Leeann Pulley, Scott L. Hill Jan 2014

Luteolysis And Pregnancy Outcomes After Change In Dose Delivery Of Prostaglandin F2Α In A 5-Day Timed Artificial Insemination Program In Dairy Cows (2014), Jeffrey S. Stevenson, Stephanie Leeann Pulley, Scott L. Hill

Kansas Agricultural Experiment Station Research Reports

Three experiments were conducted to determine if a larger dose of prostaglandin F2α (PG) administered on day 6 of a 5-day Ovsynch timed artificial insemination (AI) program would induce regression of the corpus luteum to facilitate AI and pregnancy outcomes similar to a traditional 5-day program with two doses of PG. When applying a 5-day program, cows that ovulate in response to the first GnRH injection have a new corpus luteum (CL) that is 2 days younger when PG is administered in a 5- versus 7-day program. To regress successfully the younger CL, a second injection of PG must be …

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Genetic Relationships Among Temperament, Immune Function, And Carcass Merit (2014), Kerri E. Bates, Robert L. Weaber, Jennifer M. Bormann, Daniel W. Moser, J. L. Salak-Johnson, C. C.L. Chase, R. K. Peel, H. Van Campen, G. H. Loneragan, J. J. Wagner Jan 2014

Genetic Relationships Among Temperament, Immune Function, And Carcass Merit (2014), Kerri E. Bates, Robert L. Weaber, Jennifer M. Bormann, Daniel W. Moser, J. L. Salak-Johnson, C. C.L. Chase, R. K. Peel, H. Van Campen, G. H. Loneragan, J. J. Wagner

Kansas Agricultural Experiment Station Research Reports

Cattle producers historically have selected for docile temperaments simply for management convenience because calmer animals are conducive to safe environments for their peers as well as their handlers. As many producers would acknowledge, there seems to be a relationship between temperament and health, and calmer cattle tend to frequent the working chute for treatment of disease less often. Positive correlations have been found in cattle between temperament traits (chute scores, pen scores, and chute exit velocities) and cortisol concentration in the blood, suggesting that more excitable cattle are easily stressed (Curley et al., 2006; Cooke et al., 2009). In addition, …

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