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Kansas Agricultural Experiment Station Research Reports

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Full-Text Articles in Life Sciences

Determining Amino Acid Digestibility Of Soybean Meal From South Carolina Soybean Varieties Fed To Broilers, Kara M. Dunmire, Michaela B. Braun, Caitlin E. Evans, Benjamin D. Fallen, Charles R. Stark, Chad B. Paulk Jan 2021

Determining Amino Acid Digestibility Of Soybean Meal From South Carolina Soybean Varieties Fed To Broilers, Kara M. Dunmire, Michaela B. Braun, Caitlin E. Evans, Benjamin D. Fallen, Charles R. Stark, Chad B. Paulk

Kansas Agricultural Experiment Station Research Reports

At hatch, 240 male broilers (Ross 308, Aviagen, Sallisaw, OK) were placed in batteries (Petersime Brood Unit, Gettysburg, OH) for a 15-d study to evaluate amino acid digestibility of soybean meal (SBM) from specialty variety soybeans grown in South Carolina. There were 10 replicates per treatment and 6 broilers per cage. Broilers were given a common corn and soybean meal-based diet from d 0 to 9. On d 9, broilers were weighed, and cages were allotted to 1 of 4 dietary treatments within location block. Dietary treatments consisted of 1 of 4 soybean sources varying in quality determined by crude …

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Decreasing Corn Particle Size Increases Metabolizable Energy When Fed To Gestating Sows, Gage E. Nichols, Caitlin E. Evans, Julia P. Holen, Rachel N. Kort, Haley K. Wecker, Charles R. Stark, Chad B. Paulk Jan 2021

Decreasing Corn Particle Size Increases Metabolizable Energy When Fed To Gestating Sows, Gage E. Nichols, Caitlin E. Evans, Julia P. Holen, Rachel N. Kort, Haley K. Wecker, Charles R. Stark, Chad B. Paulk

Kansas Agricultural Experiment Station Research Reports

Previous research has demonstrated that reducing the particle size of corn improved metabolizable energy (ME) utilization in many phases of swine production. One phase that has had limited research thus far is the gestating phase for sows. The objectives of this paper were to determine the effects of corn particle size on the digestibility of gross energy (GE), and determine the digestible energy (DE) and ME in gestating sow diets. A total of 27 sows during the second phase of gestation (d 40 to 74) were chosen and fed a common diet with corn ground to 1 of 3 target …

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The Effect Of Live Yeast And Yeast Extracts Included In Lactation Diets On Antimicrobial Susceptibility Of Fecal Escherichia Coli In Sows, Jenna A. Chance, Jordan T. Gebhardt, Joel M. Derouchey, Raghavendra G. Amachawadi, Victor Ishengoma, T. G. Nagaraja, Mike D. Tokach, Jason C. Woodworth, Robert D. Goodband, Qing Kang, Joseph A. Loughmiller, Brian Hotze Jan 2021

The Effect Of Live Yeast And Yeast Extracts Included In Lactation Diets On Antimicrobial Susceptibility Of Fecal Escherichia Coli In Sows, Jenna A. Chance, Jordan T. Gebhardt, Joel M. Derouchey, Raghavendra G. Amachawadi, Victor Ishengoma, T. G. Nagaraja, Mike D. Tokach, Jason C. Woodworth, Robert D. Goodband, Qing Kang, Joseph A. Loughmiller, Brian Hotze

Kansas Agricultural Experiment Station Research Reports

A total of 27 sows (Line 241; DNA Genetics) were used in a study to evaluate the effect of feeding live yeast and yeast extracts to lactating sows on antimicrobial susceptibilities of fecalE. coli. Sows were blocked by BW and parity on d 110 of gestation and allotted to 1 of 2 dietary treatments. Dietary treatments consisted of a standard corn-soybean meal lactation diet or a diet that contained yeast-based pre- and probiotics (0.10% Actisaf Sc 47 HR+ and 0.025% SafMannan; Phileo by Lesaffre, Milwaukee, WI). Diets were fed from d 110 of gestation until weaning (approximately d …

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The Effect Of Live Yeast And Yeast Extracts On Antimicrobial Susceptibilities Of Fecal Escherichia Coli Of Nursery Pigs Weaned From Sows Fed Diets With Or Without Yeast Additives, Jenna A. Chance, Jordan T. Gebhardt, Joel M. Derouchey, R. G. Amachawadi, V. Ishengoma, T. G. Nagaraja, M. D. Tokach, Jason C. Woodworth, Robert D. Goodband, Qing Kang, Joseph A. Loughmiller Jan 2021

The Effect Of Live Yeast And Yeast Extracts On Antimicrobial Susceptibilities Of Fecal Escherichia Coli Of Nursery Pigs Weaned From Sows Fed Diets With Or Without Yeast Additives, Jenna A. Chance, Jordan T. Gebhardt, Joel M. Derouchey, R. G. Amachawadi, V. Ishengoma, T. G. Nagaraja, M. D. Tokach, Jason C. Woodworth, Robert D. Goodband, Qing Kang, Joseph A. Loughmiller

Kansas Agricultural Experiment Station Research Reports

A total of 340 weaned pigs (Line 241 × 600, DNA; initially 11.2 lb BW) were used in a 45-d study to evaluate previous sow treatment (control vs. yeast additives) and nursery diets with or without added yeast-based pre- and probiotics (Phileo by Lesaffre, Milwaukee, WI) on antimicrobial resistance (AMR) patterns of fecalEscherichia coli. At placement in the nursery, pigs were housed by pen based on sow treatment and randomly assigned to 1 of 2 dietary treatments with 5 pigs per pen and 17 pens per treatment. Treatments were arranged in a 2 × 2 factorial with main …

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Use Of O3 Trial Feed To Reduce Omega-6:3 Ratio In Prrs-Virus Challenged Nursery Pigs, Jenna J. Bromm, Mike D. Tokach, Jason C. Woodworth, Robert D. Goodband, Joel M. Derouchey, Chad W. Hastad, Zach B. Post, Jordan T. Gebhardt Jan 2021

Use Of O3 Trial Feed To Reduce Omega-6:3 Ratio In Prrs-Virus Challenged Nursery Pigs, Jenna J. Bromm, Mike D. Tokach, Jason C. Woodworth, Robert D. Goodband, Joel M. Derouchey, Chad W. Hastad, Zach B. Post, Jordan T. Gebhardt

Kansas Agricultural Experiment Station Research Reports

A total of 1,056 pigs (PIC TR4 × (Fast LW × PIC L02)), originating from an active PRRSV-positive sow farm, were used in a 46-d study to evaluate growth performance of nursery pigs fed diets containing increasing levels of O3 Trial Feed, a source of omega-3 fatty acids (alpha-linolenic acid). At placement in the nursery, pens of pigs were randomly assigned 1 of 4 dietary treatments with 22 pigs per pen and 12 replications per treatment. Treatments were arranged in a completely randomized design. Dietary treatments included increasing levels of O3 Trial Feed (0, 0.75, 1.5, and 3%) with pigs …

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Evaluation Of Selenium Source On Nursery Pig Growth Performance, Serum And Tissue Selenium Concentrations, And Serum Antioxidant Status, Zhong-Xing Rao, Mike D. Tokach, Jason C. Woodworth, Joel M. Derouchey, Robert D. Goodband, Michele De Marco, Steven Moreland, Jordan T. Gebhardt Jan 2021

Evaluation Of Selenium Source On Nursery Pig Growth Performance, Serum And Tissue Selenium Concentrations, And Serum Antioxidant Status, Zhong-Xing Rao, Mike D. Tokach, Jason C. Woodworth, Joel M. Derouchey, Robert D. Goodband, Michele De Marco, Steven Moreland, Jordan T. Gebhardt

Kansas Agricultural Experiment Station Research Reports

A total of 3,888 pigs (337 × 1050, PIC; initially 13.1 ± 0.10 lb) were used in a 42-d trial. At the time of placement, pens of pigs were weighed and allotted to 1 of 3 dietary treatments in a randomized complete block design with blocking structure including sow farm origin, date of entry into the facility, and average pen body weight. A total of 144 pens were used with 72 double-sided 5-hole stainless steel fence line feeders, with feeder serving as the experimental unit. For each feeder, 1 pen contained 27 gilts and 1 pen contained 27 barrows. There …

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Effects Of Standardized Ileal Digestible Lysine On Growth Performance And Economic Return Of 200 To 300 Lb Grow-Finish Pigs, Larissa L. Becker, Emily E. Scholtz, Joel M. Derouchey, Mike D. Tokach, Jason C. Woodworth, Robert D. Goodband, Jordan T. Gebhardt, Jon A. De Jong, Fangzhou Wu, Kiah M. Gourley, Joe P. Ward, Casey R. Neill Jan 2021

Effects Of Standardized Ileal Digestible Lysine On Growth Performance And Economic Return Of 200 To 300 Lb Grow-Finish Pigs, Larissa L. Becker, Emily E. Scholtz, Joel M. Derouchey, Mike D. Tokach, Jason C. Woodworth, Robert D. Goodband, Jordan T. Gebhardt, Jon A. De Jong, Fangzhou Wu, Kiah M. Gourley, Joe P. Ward, Casey R. Neill

Kansas Agricultural Experiment Station Research Reports

A total of 2,099 barrows and gilts (PIC 1050 × DNA 600; initially 198.6 ± 3.72 lb) were used in a 57-d study to determine the optimal dietary standardized ileal digestible (SID) Lys level for approximately 200 to 300 lb pigs in a commercial setting. Pigs were randomly allotted to 1 of 4 dietary treatments with 24 to 27 pigs per pen and 20 replications per treatment. A similar number of barrows and gilts were placed in each pen. Diets were fed over 2 phases (199 to 233 and 233 to 299 lb respectively). Dietary treatments were corn-soybean meal-based. Diets …

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Effects Of Standardized Ileal Digestible Lysine Level On Growth Performance In 120 To 170 Lb Dna Finishing Pigs, Rafe Q. Royall, Robert D. Goodband, Mike D. Tokach, Joel M. Derouchey, Jordan T. Gebhardt, Jason C. Woodworth Jan 2021

Effects Of Standardized Ileal Digestible Lysine Level On Growth Performance In 120 To 170 Lb Dna Finishing Pigs, Rafe Q. Royall, Robert D. Goodband, Mike D. Tokach, Joel M. Derouchey, Jordan T. Gebhardt, Jason C. Woodworth

Kansas Agricultural Experiment Station Research Reports

The objective of this study was to estimate the SID Lys requirement for growth and feed efficiency of 120- to 170-lb finishing pigs. A total of 700 barrows and gilts (600 × 241, DNA; initial BW of 117.2 ± 1.89 lb) were used in two separate studies, each lasting 21-d. Pens of pigs were blocked by BW and randomly allotted to 1 of 6 dietary treatments with 8 to 10 pigs per pen in a randomized complete block design. A similar number of barrows and gilts were placed in each pen. Dietary treatments were corn-soybean meal-based and formulated to 0.65, …

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Effects Of Reducing The Digestible Lysine And Tryptophan To Lysine Ratio On Growth Performance Of Grow-Finish Pigs, Andres F. Tolosa, Mike D. Tokach, Robert D. Goodband, Jason C. Woodworth, Joel M. Derouchey, Jordan T. Gebhardt, Craig Steck, Matt L. Wolfe Jan 2021

Effects Of Reducing The Digestible Lysine And Tryptophan To Lysine Ratio On Growth Performance Of Grow-Finish Pigs, Andres F. Tolosa, Mike D. Tokach, Robert D. Goodband, Jason C. Woodworth, Joel M. Derouchey, Jordan T. Gebhardt, Craig Steck, Matt L. Wolfe

Kansas Agricultural Experiment Station Research Reports

A total of 1,080 finishing pigs (327 × 1050, PIC; initially 71.3 ± 1.91 lb) were used in a 119-d growth trial to evaluate the effects of reducing the dietary SID Lys and SID Trp:Lys ratio on growth performance to find strategies to reduce growth rate of pigs during the grow-finish period. Pigs were allotted by initial BW and randomly assigned to 1 of 4 dietary treatments in a completely randomized block design with 27 pigs per pen and 10 pens per treatment. Dietary treatments were corn-soybean meal-based diets with DDGS. Three dietary regimes were formulated to contain either 100, …

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Quantification Of Semi-Truck Cab Decontamination, C. Grace Elijah, Cassandra K. Jones, Caitlin Evans, Haley K. Wecker, Charles R. Stark, Jianfa Bai, Elizabeth G. Poulsen-Porter, Allison K. Blomme, Jason C. Woodworth, Chad B. Paulk, Jordan T. Gebhardt Jan 2021

Quantification Of Semi-Truck Cab Decontamination, C. Grace Elijah, Cassandra K. Jones, Caitlin Evans, Haley K. Wecker, Charles R. Stark, Jianfa Bai, Elizabeth G. Poulsen-Porter, Allison K. Blomme, Jason C. Woodworth, Chad B. Paulk, Jordan T. Gebhardt

Kansas Agricultural Experiment Station Research Reports

Evidence suggests that the inside of vehicle cabs used for feed delivery may serve as a potential source for disease, yet there are no standardized protocols or scientific evidence for methods of their disinfection. Therefore, the objective of this project was to evaluate commercially available disinfectants and disinfection application methods against PEDV and PRRSV on various surfaces within semi-truck cabs. Three different surface types common in vehicle cabs (fabric, plastic, and rubber) were cut into 4 × 4 inch coupons and inoculated with either PEDV or PRRSV. Once inoculated, surfaces were placed in one of 3 semi-truck cabs and the …

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Effect Of Benzoic Acid And Essential Oil Blends On Viral Load In Swine Feed And Vitamin Premix, Allison K. Blomme, Jordan T. Gebhardt, Cassandra K. Jones, Jason C. Woodworth, Elizabeth Poulsen Porter, Jianfa Bai, Chad B. Paulk Jan 2021

Effect Of Benzoic Acid And Essential Oil Blends On Viral Load In Swine Feed And Vitamin Premix, Allison K. Blomme, Jordan T. Gebhardt, Cassandra K. Jones, Jason C. Woodworth, Elizabeth Poulsen Porter, Jianfa Bai, Chad B. Paulk

Kansas Agricultural Experiment Station Research Reports

Feed has been shown to harbor viable virus of interest to swine producers over an extended period of time. The use of mitigants and kill steps have been investigated with variable results. This study investigated the use of benzoic acid (BA) and an essential oil blend (EO) to mitigate the presence of porcine epidemic diarrhea virus (PEDV), porcine reproductive and respiratory syndrome virus (PRRSV), and Senecavirus A (SVA) in a complete diet (Exp. 1) and a vitamin premix (Exp. 2). Four treatments consisting of 0.5% BA; 0.5% BA and 200 ppm EO; 0.3% BA and 120 ppm EO; and 0.25% …

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Prevalence And Distribution Of African Swine Fever Virus In Swine Feed After Mixing And Feed Batch Sequencing, C. Grace Elijah, Jessie D. Trujillo, Cassandra K. Jones, Taeyong Kwon, Charles R. Stark, Konner R. Cool, Chad B. Paulk, Natasha N. Gaudreault, Jason C. Woodworth, Igor Morozov, Carmen Gallardo, Jordan T. Gebhardt, Jurgen A. Richt Jan 2021

Prevalence And Distribution Of African Swine Fever Virus In Swine Feed After Mixing And Feed Batch Sequencing, C. Grace Elijah, Jessie D. Trujillo, Cassandra K. Jones, Taeyong Kwon, Charles R. Stark, Konner R. Cool, Chad B. Paulk, Natasha N. Gaudreault, Jason C. Woodworth, Igor Morozov, Carmen Gallardo, Jordan T. Gebhardt, Jurgen A. Richt

Kansas Agricultural Experiment Station Research Reports

As the United States maintains trade with countries where African swine fever virus (ASFV) is endemic, it is critical to have methods that can detect and mitigate the risk of ASFV in potentially contaminated feed or ingredients. Therefore, the objectives of this study were to 1) evaluate feed batch sequencing as a mitigation technique for ASFV contamination in a feed mill, and 2) determine if a feed sampling method could identify ASFV following experimental inoculation. Batches of feed were manufactured in a BSL-3Ag room at Kansas State University’s Biosafety Research Institute in Manhattan, KS. First, the pilot feed manufacturing system …

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Wheat And Grain Sorghum In Four-Year Rotations, A. Schlegel, J. Holman, A. Burnett Jan 2021

Wheat And Grain Sorghum In Four-Year Rotations, A. Schlegel, J. Holman, A. Burnett

Kansas Agricultural Experiment Station Research Reports

In 1996, an effort began to quantify soil water storage, crop water use, and crop productivity on dryland systems in western Kansas. Research on 4-year crop rotations with wheat and grain sorghum was initiated at the Southwest Research-Extension Center near Tribune, KS. Rotations were wheat-wheat-sorghum-fallow (WWSF), wheat-sorghum-sorghum-fallow (WSSF), and continuous wheat (WW). Soil water at wheat planting averaged about 9 in. following sorghum, which is about 3 in. more than the average for the second wheat crop in a WWSF rotation. Soil water at sorghum planting was only about 1.5 in. less for the second sorghum crop compared with sorghum …

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Weed Control With Imazamox Rates And Timings In Herbicide-Tolerant Grain Sorghum, R. S. Currie, P. W. Geier Jan 2021

Weed Control With Imazamox Rates And Timings In Herbicide-Tolerant Grain Sorghum, R. S. Currie, P. W. Geier

Kansas Agricultural Experiment Station Research Reports

The objective of this trial was to evaluate weed control and crop response using imazamox (KFD-365-02) in herbicide-resistant grain sorghum. Palmer amaranth control was 80% or less late in the season due to the herbicide-resistant weed biotype in the experiment. Both velvetleaf and shattercane control exceeded 90% with most herbicides late in the year. Using KFD-365-02 at the 9.0 oz/a rate applied preemergence alone or with atrazine or Moccasin II Plus controlled green foxtail and puncturevine the best. Most early postemergence treatments caused minor sorghum necrosis 6 days after treatments, but sorghum recovered fully within one week.

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Evaluation Of Supplemental Fat Sources And Pre-Farrow Essential Fatty Acid Intake On Lactating Sow Performance And Essential Fatty Acid Composition Of Colostrum, Milk, And Adipose Tissue, Julia P. Holen, Jason C. Woodworth, Mike D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jordan T. Gebhardt Jan 2021

Evaluation Of Supplemental Fat Sources And Pre-Farrow Essential Fatty Acid Intake On Lactating Sow Performance And Essential Fatty Acid Composition Of Colostrum, Milk, And Adipose Tissue, Julia P. Holen, Jason C. Woodworth, Mike D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jordan T. Gebhardt

Kansas Agricultural Experiment Station Research Reports

A total of 91 sows (Line 241, DNA Genetics) were used to evaluate the effects of supplemental fat sources and essential fatty acid intake on lactating sow farrowing performance, litter growth performance, and essential fatty acid composition of colostrum, milk, and adipose tissue. At approximately d 107 of gestation, sows were blocked by body weight and parity, then allotted to 1 of 5 experimental treatments as part of a 2 × 2 + 1 factorial arrangement. Experimental diets were corn-soybean meal-based with a control diet that contained no added fat, or diets with 3% added fat as either beef tallow …

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Effects Of Live Yeast And Yeast Extracts With And Without Pharmacological Levels Of Zinc On Nursery Pig Growth Performance And Fecal Consistency, Jenna A. Chance, Jordan T. Gebhardt, Joel M. Derouchey, Hilda I. Calderón, Mike D. Tokach, Jason C. Woodworth, Robert D. Goodband, Joseph A. Loughmiller Jan 2021

Effects Of Live Yeast And Yeast Extracts With And Without Pharmacological Levels Of Zinc On Nursery Pig Growth Performance And Fecal Consistency, Jenna A. Chance, Jordan T. Gebhardt, Joel M. Derouchey, Hilda I. Calderón, Mike D. Tokach, Jason C. Woodworth, Robert D. Goodband, Joseph A. Loughmiller

Kansas Agricultural Experiment Station Research Reports

A total of 360 weanling barrows (Line 200 × 400, DNA Genetics; initial BW 12.4 ± 0.05 lb) were used in a 42-d study to evaluate yeast-based pre- and probiotics (Phileo by Lesaffre, Milwaukee, WI) in diets with or without pharmacological levels of Zn on growth performance and fecal dry matter (DM). Pens were assigned to 1 of 4 dietary treatments with 5 pigs per pen and 18 pens per treatment. Dietary treatments were arranged in a 2 × 2 factorial with main effects of live yeast-based pre- and probiotics (none vs. 0.10% ActiSaf Sc 47 HR+, 0.05% SafMannan, and …

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Foxtail Management In Smooth Brome Hay Meadows, S. R. Lancaster, S. R. Duncan Jan 2021

Foxtail Management In Smooth Brome Hay Meadows, S. R. Lancaster, S. R. Duncan

Kansas Agricultural Experiment Station Research Reports

Three different herbicides were applied at early bromegrass greenup and at post hay harvest to assess their effectiveness in controlling foxtail at two producer hay meadow sites in Pottawatomie (PT) and Dickinson (DK) counties. Pendimethalin applied early resulted in the greatest foxtail control, but control did not extend through the season to reduce late-summer infestations. Metsulfuron applied early resulted in approximately 30% visible brome injury. The injury was associated with 77 and 48% brome hay losses when compared to the untreated check, at the PT and DK sites, respectively. Injury from the early spring treatments was exacerbated by six freeze …

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Wheat Stubble Height On Subsequent Corn And Grain Sorghum Crops, A. Schlegel, A. Burnett, L. Haag Jan 2021

Wheat Stubble Height On Subsequent Corn And Grain Sorghum Crops, A. Schlegel, A. Burnett, L. Haag

Kansas Agricultural Experiment Station Research Reports

A field study initiated in 2006 at the Southwest Research-Extension Center near Tribune, KS, was designed to evaluate the effects of three wheat stubble heights on subsequent grain yields of corn and grain sorghum. Corn and sorghum yields in 2020 were near the long-term average despite lower than normal precipitation. When averaged across years from 2007 through 2020, corn grain yields were 8 bu/a greater when planted into either high or strip-cut wheat stubble than into low-cut stubble. Average grain sorghum yields were 5 bu/a greater in high-cut stubble than low-cut stubble. Similarly, water use efficiency was greater for high …

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Testing Irrigated Cotton Production, J. Aguilar, R. S. Currie, D. Tomsicek, L. Haag, S. Duncan Jan 2021

Testing Irrigated Cotton Production, J. Aguilar, R. S. Currie, D. Tomsicek, L. Haag, S. Duncan

Kansas Agricultural Experiment Station Research Reports

Cotton research was initiated in Garden City, KS, which is the northern rim of the typical cotton production area. Initial results showed that with specific seed varieties and strategic irrigation management, cotton could be grown and provide decent yield in this region. There is still additional research that needs conducted, particularly with regards to germination and seeding rates.

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Novel Sorghum Herbicides For Grass Control In Fallow, R. S. Currie, P. W. Geier Jan 2021

Novel Sorghum Herbicides For Grass Control In Fallow, R. S. Currie, P. W. Geier

Kansas Agricultural Experiment Station Research Reports

This study was conducted to compare herbicides for use in herbicide-tolerant grain sorghum for grass control in fallow. Imazamox applied preemergence (PRE) was generally the most effective herbicide regardless of weed species or evaluation date. Postemergence (POST) treatments did not control green foxtail more than 78% late in the season. Imazamox, Assure II (quizalofop), and Accent (nicosulfuron) applied PRE or early POST controlled shattercane and crabgrass 90% or more late in the season. Assure II applied late POST also controlled shattercane 93 to 95% late in the year.

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Pixxaro Alone And In Combination For Weed Control In Fallow, R. S. Currie, P. W. Geier Jan 2021

Pixxaro Alone And In Combination For Weed Control In Fallow, R. S. Currie, P. W. Geier

Kansas Agricultural Experiment Station Research Reports

The objective of this study was to compare Pixxaro (halauxifen/fluroxypyr) alone and in combinations for weed control in fallow. Pixxaro alone was equal to or better than Banvel, Starane Ultra, or glyphosate alone for kochia control. However, the best kochia control occurred when these herbicides were mixed in various combinations. Similarly, Pixarro controlled flixweed equally as well as Banvel, Starane Ultra, or glyphosate at 7 days after treatment but flixweed control was complete regardless of herbicide later in the season.

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Weather Information For Garden City, 2020, J. Elliott Jan 2021

Weather Information For Garden City, 2020, J. Elliott

Kansas Agricultural Experiment Station Research Reports

Summary of 2020 weather for research conducted at the Garden City Kansas Agricultural Experiment Station field location.

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Evaluation Of Soil Parameters After Long-Term Subsurface Drip Irrigation Under Minimum Tillage System, E. B. Rutter, D. A. Ruiz Diaz Jan 2021

Evaluation Of Soil Parameters After Long-Term Subsurface Drip Irrigation Under Minimum Tillage System, E. B. Rutter, D. A. Ruiz Diaz

Kansas Agricultural Experiment Station Research Reports

The objective of this study was to evaluate soil parameters after the long-term use of sub-surface drip irrigation under no-till, with the use of high pH irrigation water. Results from this study showed that stratification of soil pH and soil test phosphorus (P) was more prominent when compared to other soil parameters. However, the stratification of pH and soil test P is likely the combined effect of surface fertilizer application and sub-surface irrigation water. The stratification of other parameters, such as soil calcium (Ca) and sodium (Na) and electrical conductivity (EC), was less clear. Soil test potassium (K) showed some …

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The Effects Of Coarse Corn Inclusion In Broiler Diets On Pellet Quality, Aundria M. Ogles, Caitlin E. Evans, Haley K. Wecker, Courtney N. Truelock, Charles R. Stark, Chad B. Paulk Jan 2021

The Effects Of Coarse Corn Inclusion In Broiler Diets On Pellet Quality, Aundria M. Ogles, Caitlin E. Evans, Haley K. Wecker, Courtney N. Truelock, Charles R. Stark, Chad B. Paulk

Kansas Agricultural Experiment Station Research Reports

Previous research has demonstrated the benefits of including large grain particle size in poultry diets on gizzard and gastrointestinal tract development. However, including these larger particles may decrease pellet integrity. Therefore, the objective of this study was to evaluate the effect of coarse corn inclusion level on pellet quality. A corn soybean meal-based finisher broiler diet with 1.5% mixer added fat was used in this experiment. Treatments were created by replacing 600 μm corn with 1,200 μm coarse rolled corn at 0, 10, 20, or 30% of the diet. Mash treatments were pelleted using a 30-horsepower pellet mill (Model 1012-2 …

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Effect Of Benzoic Acid And Essential Oil Blends On Viral Load In Swine Feed And Vitamin Premix, Allison K. Blomme, Jordan T. Gebhardt, Cassandra K. Jones, Jason C. Woodworth, Elizabeth G. Poulsen Porter, Jianfa Bai, Chad B. Paulk Jan 2021

Effect Of Benzoic Acid And Essential Oil Blends On Viral Load In Swine Feed And Vitamin Premix, Allison K. Blomme, Jordan T. Gebhardt, Cassandra K. Jones, Jason C. Woodworth, Elizabeth G. Poulsen Porter, Jianfa Bai, Chad B. Paulk

Kansas Agricultural Experiment Station Research Reports

Feed has been shown to harbor viable virus of interest to swine producers over an extended period of time. The use of mitigants and kill steps have been investigated with variable results. This study investigated the use of benzoic acid (BA) and an essential oil blend (EO) to mitigate the presence of porcine epidemic diarrhea virus (PEDV), porcine reproductive and respiratory syndrome virus (PRRSV), and Senecavirus A (SVA) in a complete diet (Exp. 1) and a vitamin premix (Exp. 2). Four treatments consisting of 0.5% BA; 0.5% BA and 200 ppm EO; 0.3% BA and 120 ppm EO; and 0.25% …

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Evaluation Of Mixing Efficacy Of Carriers For Supplemental Nutrient Premixes In Animal Feed, Dalton Holt, Charles G. Aldrich Jan 2021

Evaluation Of Mixing Efficacy Of Carriers For Supplemental Nutrient Premixes In Animal Feed, Dalton Holt, Charles G. Aldrich

Kansas Agricultural Experiment Station Research Reports

Animal feed is commonly formulated with vitamin and mineral premixes to supply the micronutrient requirements of the animal. Premixes typically require carriers which act as a delivery system for micronutrients to aid in uniformity, dilution, and dispersibility across the entire mix. However, little information is available regarding how different carriers might influence the dispersion of nutrients throughout a premix. Therefore, the main objective was to develop a method to systematically evaluate the mixing efficacy of different carriers in a premix formulation. A currently established analysis of mixer uniformity was adapted and repurposed for the evaluation of the premix carriers, rice …

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Effect Of Soybean Meal From Different Midwest Soybean Varieties On Growth Performance Of Broilers, Kara M. Dunmire, Michaela B. Braun, Caitlin E. Evans, Charles R. Stark, Chad B. Paulk Jan 2021

Effect Of Soybean Meal From Different Midwest Soybean Varieties On Growth Performance Of Broilers, Kara M. Dunmire, Michaela B. Braun, Caitlin E. Evans, Charles R. Stark, Chad B. Paulk

Kansas Agricultural Experiment Station Research Reports

At hatch, 360 one-d old Cobb500 male broilers were placed in battery cages to determine the effect of soybean meal (SBM) from different Midwest soybean varieties on growth performance of broilers. There were 6 broilers per cage and 15 replicates per treatment. Dietary treatments cons0isted of 1 of 4 soybean sources varying in quality determined by crude protein (CP) content and processed into SBM. Two sources consisted of soybeans from a similar region and processed either commercially solvent extracted or experimentally solvent extracted at Texas A&M University. Additional sources included a low quality and high quality soybean, experimentally solvent extracted …

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The Effect Of Two Combinations Of Direct Fed Microbials On Growth Performance Of Nursery Pigs Weaned From Sows Fed Diets With Or Without Yeast Additives, Jenna A. Chance, Jordan T. Gebhardt, Joel M. Derouchey, Mike D. Tokach, Jason C. Woodworth, Robert D. Goodband, Joseph A. Loughmiller Jan 2021

The Effect Of Two Combinations Of Direct Fed Microbials On Growth Performance Of Nursery Pigs Weaned From Sows Fed Diets With Or Without Yeast Additives, Jenna A. Chance, Jordan T. Gebhardt, Joel M. Derouchey, Mike D. Tokach, Jason C. Woodworth, Robert D. Goodband, Joseph A. Loughmiller

Kansas Agricultural Experiment Station Research Reports

A total of 330 weaned pigs (Line 241 × 600, DNA; initially 12.7 lb BW) were used in a 38-d nursery study to evaluate previous sow treatment (control vs. yeast additives) and nursery diets with different combinations of direct fed microbials (DFMs; Phileo by Lesaffre, Milwaukee, WI) on nursery pig growth performance. Pigs were placed in pens across two nursery rooms at weaning then pens were assigned to 1 of 3 dietary treatments with 6 pigs per pen and 8 to 10 replications per treatment. Treatments were arranged in a 2 × 3 factorial with main effects of sow treatment …

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Effect Of Dietary Salt And Zinc Level On Growth Performance And Fecal Dry Matter Of Nursery Pigs, Ethan B. Stas, Mike D. Tokach, Jason C. Woodworth, Joel M. Derouchey, Robert D. Goodband, Jordan T. Gebhardt Jan 2021

Effect Of Dietary Salt And Zinc Level On Growth Performance And Fecal Dry Matter Of Nursery Pigs, Ethan B. Stas, Mike D. Tokach, Jason C. Woodworth, Joel M. Derouchey, Robert D. Goodband, Jordan T. Gebhardt

Kansas Agricultural Experiment Station Research Reports

A total of 360 pigs (Line 600 × 241, DNA; initially 12.6 ± 0.5 lb) were used to determine the effect of feeding different levels of dietary Na alone or in combination with pharmacological levels of Zn on growth performance and fecal dry matter of nursery pigs. At weaning, pigs were randomly allotted to pens (6 pigs per pen) and fed a common diet for 7 days. On d 7 after weaning (d 0 of the trial), pigs were assigned to 1 of 6 dietary treatments with 10 replications per treatment. Dietary treatments were arranged in a 2 × 3 …

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Evaluation Of Vegetable Protein Sources On Nursery Pig Performance In A Commercial Environment, Rafe Q. Royall, Joel M. Derouchey, Mike D. Tokach, Jason C. Woodworth, Robert D. Goodband, Jordan T. Gebhardt, Keith D. Haydon Jan 2021

Evaluation Of Vegetable Protein Sources On Nursery Pig Performance In A Commercial Environment, Rafe Q. Royall, Joel M. Derouchey, Mike D. Tokach, Jason C. Woodworth, Robert D. Goodband, Jordan T. Gebhardt, Keith D. Haydon

Kansas Agricultural Experiment Station Research Reports

This experiment was conducted to determine the effect of vegetable protein sources on growth and economic performance of nursery pigs in a commercial research environment. A total of 2,592 pigs (L337 × 1050, PIC; initial BW of 11.8 ± 0.11 lb) were used in a 42-d study. Pens of pigs were blocked by BW and weaning date and allotted to 1 of 6 dietary treatments in a randomized complete block design with 27 pigs per pen and 16 replications per treatment across 2 rooms. Similar numbers of barrows and gilts were placed in each pen. There were six dietary treatments …

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