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Kansas Agricultural Experiment Station Research Reports

2017

Articles 181 - 210 of 221

Full-Text Articles in Life Sciences

Irrigation And Tillage Management Effects On Canopy Formation In Corn, R. M. Aiken, F. Lamm, A. A. Aboukheira Jan 2017

Irrigation And Tillage Management Effects On Canopy Formation In Corn, R. M. Aiken, F. Lamm, A. A. Aboukheira

Kansas Agricultural Experiment Station Research Reports

Effects of canopy formation and function are frequently represented in irrigation management models by crop coefficients, which can be used to calculate expected crop water requirements. Soil tillage alters the micro-environment of a developing corn canopy. The objective of this study was to evaluate irrigation capacity and tillage effects on seasonal changes in maize canopy and above-ground biomass productivity. Leaf area index (LAI) and above-ground biomass (AGB) were quantified by non-destructive methods during four growing seasons for corn under two irrigation capacities (1 in./4 days or 1 in./8 days) and three tillage regimes (no-tillage (NT), strip tillage (ST), or conventional …

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Sudden Death Syndrome And Soybean Planting Date, Eric Adee, C. R. Little, I. A. Ciampitti Jan 2017

Sudden Death Syndrome And Soybean Planting Date, Eric Adee, C. R. Little, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

The effect of planting date on severity of sudden death syndrome (SDS) and yield was evaluated for the second year in two studies at the Kansas River Valley experiment fields in 2016. One study was established to promote SDS and the other to minimize SDS. In both studies the severity of SDS was greatest with the earlier planting dates. The yield was greatest with the earlier planting date, except for the most susceptible variety. The severity of SDS was not as great as had been observed in previous years. There is a very positive benefit to planting in early May …

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Closing Soybean Yield Gaps Via Improved Management: A Systems Approach, G. R. Balboa, I. A. Ciampitti Jan 2017

Closing Soybean Yield Gaps Via Improved Management: A Systems Approach, G. R. Balboa, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

Three soybean research trials were conducted during the 2016 growing season. Two studies were conducted at Scandia, KS, (dryland and irrigated) and one at Topeka, KS (dryland). The objective of this study was to investigate the contribution of different farming systems for closing soybean yield gaps. Each experiment consisted of five treatments: common practices (CP), comprehensive fertilization (CF), production intensity (PI), ecological intensification (CF + PI), and advanced plus (AD). The EI and AD treatments presented the maximum yields at both locations. Under irrigation conditions, yield gap was larger at Scandia relative to Topeka site. Across all three soybean experiments, …

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Planting Date By Maturity Group In Kansas: 2016 Season And Three-Year Summary, I. A. Ciampitti, O. Ortez, D. E. Shoup, Eric Adee, J. Kimball, Gretchen Sassenrath, G. Cramer Jan 2017

Planting Date By Maturity Group In Kansas: 2016 Season And Three-Year Summary, I. A. Ciampitti, O. Ortez, D. E. Shoup, Eric Adee, J. Kimball, Gretchen Sassenrath, G. Cramer

Kansas Agricultural Experiment Station Research Reports

Optimal planting should be timed to capture a favorable environment (e.g., fall rains and cooler temperatures during grain filling). Five field studies were conducted during the 2014 growing season (Manhattan, Topeka, Ottawa, Parsons, and Hutchinson); five in 2015 (Manhattan, Rossville, Ottawa, Parsons, and Hutchinson); and three in 2016 (Manhattan, Topeka, and Ottawa). This study explores the impact of planting date (early-, mid-, and late-planted) on yield for soybean cultivars from a range of maturity groups (early, medium, and late groups). For 2016, the overall main factor impacting yield across sites was planting date, which increased yields with early-planted soybeans. Based …

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Seed Yield And Biological Nitrogen Fixation For Historical Soybean Genotypes, S. Tamagno, I. A. Ciampitti Jan 2017

Seed Yield And Biological Nitrogen Fixation For Historical Soybean Genotypes, S. Tamagno, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

Seed yield formation and biological nitrogen (N) fixation (BNF) were evaluated during the seed filling period (SFP) for historical soybean genotypes under contrasting N strategies. Overall, seed yield increased with the year of release, primarily associated with increments in the seed number component. The study showed that seed weight factor was maintained across decades regardless of the improvement in seed number. Nitrogen factor, evaluated as zero-N application via inorganic fertilizers versus high-N added, influenced seed yield via impacting seed weight factor. The latter plant trait improved with the high-N treatment, which was related to changes in the duration of the …

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Soybean: Evaluation Of Inoculation, T. M. Albuquerque, O. Ortez, G. I. Carmona, I. A. Ciampitti Jan 2017

Soybean: Evaluation Of Inoculation, T. M. Albuquerque, O. Ortez, G. I. Carmona, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

Most of the nitrogen (N) required by a soybean plant is supplied via biological nitrogen fixation (BNF). When BNF is adequately established in the soil, soybean can obtain up to 50 to 75% of its N from the air. This project aims to quantify the response to inoculation for soybean in its second year in a field without previous history of this crop. Due to this objective, a field study was conducted during the 2015 and 2016 growing seasons at Ottawa, KS (East Central experiment field location). The treatments consisted of five different N-management approaches: non-inoculated (NI), inoculated ×1 (I×1), …

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Soybean: Genetic Gain × Fertilizer Nitrogen Interaction, O. Ortez, F. Salvagiotti, Eric Adee, J. Enrico, I. A. Ciampitti Jan 2017

Soybean: Genetic Gain × Fertilizer Nitrogen Interaction, O. Ortez, F. Salvagiotti, Eric Adee, J. Enrico, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

The United States (US) and Argentina (ARG) account for more than 50% of the global soybean production. Soybean yields are determined by the genotype, environment, and management practices (G × E × M) interaction. Overall, 50-60% of soybean nitrogen (N) demand is usually met by the biological nitrogen fixation (BNF) process. An unanswered scientific question concerns the ability of BNF process to satisfy soybean N demand at varying yield levels. The overall objective of this project was to study the contribution of N via utilization of different N strategies, evaluating soybean genotypes released in different eras. Four field experiments were …

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Genotype By Seeding Rate Interaction In Wheat, A. J. Azevedo, S. Varela, R. Lollato, I. A. Ciampitti Jan 2017

Genotype By Seeding Rate Interaction In Wheat, A. J. Azevedo, S. Varela, R. Lollato, I. A. Ciampitti

Kansas Agricultural Experiment Station Research Reports

Genotype by seeding rate interaction can play a critical role in understanding wheat (Triticum aestivumL.) yield potential. The objective of this study was to quantify wheat yield response to seeding rates by contrasting genotypes (high- vs. low-tillering). One study was planted at two locations: Ashland Bottoms (dryland and conventional tillage) and at Topeka (irrigated and no-tillage) field research stations (Kansas). The two winter wheat varieties were sown at four different seeding rates (40, 80, 120, and 160 lb/a). Measurements consisted of stand counts, canopy coverage (estimated via imagery collection), determination of early-season gaps in the final stand (missing …

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Wheat Variety Response To Seed Cleaning Method And Pesticide Seed Treatment Following A Growing Season With Severe Infestation Of Fusarium Head Blight, R. Lollato, R. Maeoka, B. R. Jaenisch, A. De Oliveira Silva Jan 2017

Wheat Variety Response To Seed Cleaning Method And Pesticide Seed Treatment Following A Growing Season With Severe Infestation Of Fusarium Head Blight, R. Lollato, R. Maeoka, B. R. Jaenisch, A. De Oliveira Silva

Kansas Agricultural Experiment Station Research Reports

Fusarium head blight (scab) is a common concern in eastern and central Kansas. Wheat seed quality might be compromised following a growing season with severe infestation of scab. Our objectives were to evaluate the effects of variety, seed cleaning method, and seed treatment, on wheat stand establishment and yield following a growing season where scab was severe. A trial was established during the 2015-16 growing season using seed harvested from the 2014-15 growing season, which was characterized by severe infestation of scab. Three commonly grown wheat varieties with differing levels of scab resistance (Everest, SY Wolf, and WB Grainfield) were …

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Optimum Seeding Rate For Different Wheat Varieties In Kansas, R. Lollato, G. Cramer, A. K. Fritz, G. Zhang Jan 2017

Optimum Seeding Rate For Different Wheat Varieties In Kansas, R. Lollato, G. Cramer, A. K. Fritz, G. Zhang

Kansas Agricultural Experiment Station Research Reports

Seeding rate is an important management practice affecting wheat yield. Wheat varieties differ in their tillering capacity and therefore in their yield response to seeding rate. Our objectives were to evaluate the tillering and yield response of different modern wheat varieties to seeding rate. The study was conducted in Hutchinson and Manhattan, KS, during the 2015-16 growing season. Seven wheat varieties (Everest, KanMark, 1863, Joe, Tatanka, Larry, and Zenda) were sown at five different seeding rates (0.6, 0.95, 1.3, 1.65, and 2 million seeds per acre). Tiller number and grain yield were measured in the spring. Increasing plant population decreased …

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Timing And Positioning Of Simulated Hail Damage Effects On Wheat Yield In Kansas, R. Lollato, B. R. Jaenisch, R. Maeoka, A. De Oliveira Silva, C. Sciarresi Jan 2017

Timing And Positioning Of Simulated Hail Damage Effects On Wheat Yield In Kansas, R. Lollato, B. R. Jaenisch, R. Maeoka, A. De Oliveira Silva, C. Sciarresi

Kansas Agricultural Experiment Station Research Reports

Hail events often decrease wheat yields in Kansas; however, estimates of yield loss due to hail event timing and position relative to the flag leaf are only available for old varieties. Our objectives were to quantify wheat yield losses as affected by timing of hail event relative to the crop development and positioning of the damage relative to the flag leaf. A total of 12 hail damage treatments including six different timings during the growing season (boot, anthesis, milk, soft dough, hard dough, and ripe) and two different positionings relative to the flag leaf (above or below) were evaluated in …

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Note About 50th Anniversary, R. D. Goodband Jan 2017

Note About 50th Anniversary, R. D. Goodband

Kansas Agricultural Experiment Station Research Reports

This year marks the 50th Swine Industry Day and Report of Progress. We are deeply appreciative of the innovators who had the foresight to begin such a program of disseminating the latest swine research to the industry and the many people who have contributed along our 50-year history. K-State’s Swine Day is the oldest and longest-running swine day in the country. It provides us the opportunity to share the latest research with our K-State family, and could not have been done without the tremendous support of our producers, industry stakeholders, and students.

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Effect Of Parity And Stage Of Gestation On Growth And Feed Efficiency Of Gestating Sows, L. L. Thomas, R. D. Goodband, M. D. Tokach, J. C. Woodworth, J. M. Derouchey, S. S. Dritz Jan 2017

Effect Of Parity And Stage Of Gestation On Growth And Feed Efficiency Of Gestating Sows, L. L. Thomas, R. D. Goodband, M. D. Tokach, J. C. Woodworth, J. M. Derouchey, S. S. Dritz

Kansas Agricultural Experiment Station Research Reports

The effects of parity and stage of gestation on female growth criteria and reproductive performance were evaluated at a commercial sow farm. A total of 712 females (Camborough, PIC, Hendersonville, TN) were group-housed and individually fed with electronic sow feeders. Gilts (parity 1) and sows were offered 4.4 and 5.0 lb of feed per day (4.7 and 5.3 Mcal NE per d), respectively. Females were moved from the breeding stall to pens on d 5 of gestation. A scale was located in the alleyway to weigh sows as they left individual feeding stations. Feed intake and BW were recorded daily …

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Effect Of Parity And Stage Of Gestation On Maternal Growth And Feed Efficiency Of Gestating Sows, L. L. Thomas, R. D. Goodband, M. D. Tokach, S. S. Dritz, J. C. Woodworth, J. M. Derouchey Jan 2017

Effect Of Parity And Stage Of Gestation On Maternal Growth And Feed Efficiency Of Gestating Sows, L. L. Thomas, R. D. Goodband, M. D. Tokach, S. S. Dritz, J. C. Woodworth, J. M. Derouchey

Kansas Agricultural Experiment Station Research Reports

The objective of this study was to evaluate the effect of parity and stage of gestation on maternal weight gain and efficiency of feed use in group-housed gestating sows from a commercial sow farm. A total of 712 females (Camborough, PIC, Hendersonville, TN) were group-housed from d 5 to 112 of gestation and individually fed with electronic sow feeders (ESF). Feed intake and BW were recorded daily throughout gestation via the ESF and a scale located in an alleyway just after sows exited the feeding station. Gilts (parity 1) and sows received 6.5 and 7.3 Mcal ME per d. Maternal …

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The Effects Of Feeding Benzoic Acid And Essential Oils On Sows And Litter Performance, M. T. Thayer, J. L. Nelssen, A. Langemeier, J. Morton, Z. Ou, J. R. Bergstrom Jan 2017

The Effects Of Feeding Benzoic Acid And Essential Oils On Sows And Litter Performance, M. T. Thayer, J. L. Nelssen, A. Langemeier, J. Morton, Z. Ou, J. R. Bergstrom

Kansas Agricultural Experiment Station Research Reports

A total of 48 sows (DNA Line 200 × 400) and their progeny were used in this study to determine if feeding sows and/or piglets benzoic acid (VevoVitall, DSM Nutritional Products, Parsippany, NJ) paired with an essential oil blend (CRINA, DSM Nutritional Products, Parsippany, NJ) enhances sow and pig performance during lactation, piglet weight gain in the nursery, and survivability to market. For sow and preweaned piglet performance in the farrowing house, adding benzoic acid and an essential oil blend to the maternal diet did not affect (P>0.05) litter performance or weaning weight of the piglets. Fecal swabbing litters …

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Quantifying Medium Chain Fatty Acid Mitigation Activity Over Time Against Porcine Epidemic Diarrhea Virus In Nursery Pig Diets, J. T. Gebhardt, J. C. Woodworth, M. D. Tokach, J. M. Derouchey, R. D. Goodband, C. K. Jones, S. S. Dritz Jan 2017

Quantifying Medium Chain Fatty Acid Mitigation Activity Over Time Against Porcine Epidemic Diarrhea Virus In Nursery Pig Diets, J. T. Gebhardt, J. C. Woodworth, M. D. Tokach, J. M. Derouchey, R. D. Goodband, C. K. Jones, S. S. Dritz

Kansas Agricultural Experiment Station Research Reports

Medium chain fatty acids (MCFA) are six to twelve carbon length molecules that have shown significant promise as potential mitigants of biological hazards in feed and feed ingredients. The use of residual duration of activity approaches, such as MCFA, have significant advantages compared to point-in-time mitigation strategies. The primary advantage of MCFA is the ability to mitigate the risks generated by post-processing contamination; however, the duration of mitigation activity has not been established. Therefore, the objective of this experiment was to characterize the mitigation properties of MCFA-treated swine feed 40 d following feed manufacturing. Treatments (n = 8) consisted of …

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Effects Of Crystalline Amino Acid Concentrations With Or Without Formaldehyde Treatment Of Diets On Nursery Pig Growth Performance And Fecal Bacterial Concentration, H. Williams, J. C. Woodworth, J. M. Derouchey, S. S. Dritz, M. D. Tokach, R. D. Goodband, T. E. Burkey, S. Li Jan 2017

Effects Of Crystalline Amino Acid Concentrations With Or Without Formaldehyde Treatment Of Diets On Nursery Pig Growth Performance And Fecal Bacterial Concentration, H. Williams, J. C. Woodworth, J. M. Derouchey, S. S. Dritz, M. D. Tokach, R. D. Goodband, T. E. Burkey, S. Li

Kansas Agricultural Experiment Station Research Reports

A total of 1,235 nursery pigs (PIC 359 × 1050; initially 26.9 lb BW) were used in a 28-d study evaluating the effects of crystalline amino acid concentrations with or without formaldehyde treatment of diets on nursery pig growth performance, feed bacteria concentration, lysine content, and fecal microbial diversity. Sal CURB (Kemin Industries Inc., Des Moines, IA) is a commercial formaldehyde product that is commonly utilized in the poultry industry forSalmonellacontrol in feed but has also been shown to reduce PEDV infectivity in swine diets.

Pigs were weaned at approximately 21 d, fed a common starter diet for …

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Effects Of Monosodium Glutamate On 14- To 56-Lb Nursery Pigs, A. B. Clark, M. D. Tokach, J. M. Derouchey, S. S. Dritz, J. C. Woodworth, R. D. Goodband, K. J. Touchette Jan 2017

Effects Of Monosodium Glutamate On 14- To 56-Lb Nursery Pigs, A. B. Clark, M. D. Tokach, J. M. Derouchey, S. S. Dritz, J. C. Woodworth, R. D. Goodband, K. J. Touchette

Kansas Agricultural Experiment Station Research Reports

A total of 700 nursery pigs (PIC C-29 × 1050 × 1040, initially 13.6 lb BW) were used in a 42-d growth study to determine the effects of monosodium glutamate (MSG; Ajinomoto Heartland, LLC, Chicago, IL) on growth performance. Pigs were fed 1 of 5 dietary treatments: 0, 0.5, 1.0, 1.5, or 2.0% MSG. Experimental diets were fed in three phases from d 0 to 14, 14 to 28, and 28 to 42. Phase 1 was pelleted and phases 2 and 3 were fed in meal form. Diets were formulated to balance Na and Cl content with increasing MSG using …

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Effects Of Feeding Increasing Levels Of Hp 300 On Nursery Pig Performance, A. M. Jones, J. M. Derouchey, G. Fitzner, J. C. Woodworth, M. D. Tokach, R. D. Goodband, S. S. Dritz Jan 2017

Effects Of Feeding Increasing Levels Of Hp 300 On Nursery Pig Performance, A. M. Jones, J. M. Derouchey, G. Fitzner, J. C. Woodworth, M. D. Tokach, R. D. Goodband, S. S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,215 pigs (PIC 337 × 1050; initial BW 11.3 lb) were used in a 43-d growth trial evaluating the effects of feeding increasing HP 300 (Hamlet Protein, Findlay, OH) on nursery pig performance. Pigs were weaned at 16 to 19 d of age and placed in pens, with each pen containing a mix of barrows and gilts. Pens of pigs were weighed and allotted by BW to 1 of 5 dietary treatments in a randomized complete block design with 27 pigs per pen and 9 pens per treatment. The control diet was a standard cornsoybean meal-based diet …

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Evaluating The Effects Of Replacing Fish Meal With Hp 300 On Nursery Pig Performance, A. M. Jones, J. C. Woodworth, J. M. Derouchey, M. D. Tokach, R. D. Goodband, S. S. Dritz Jan 2017

Evaluating The Effects Of Replacing Fish Meal With Hp 300 On Nursery Pig Performance, A. M. Jones, J. C. Woodworth, J. M. Derouchey, M. D. Tokach, R. D. Goodband, S. S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 350 barrows (Line 200 × 400 DNA, Columbus, NE; initially 13.6 lb) were used in a 21-d growth trial with 5 pigs per pen and 14 pens per treatment. Pigs were weaned at approximately 21-d of age, placed in nursery pens according to BW and fed a common pelleted starter diet for 3 d, at which time, pigs were weighed and then pens were blocked by BW to 1 of 5 dietary treatments in a randomized complete block design. A composite sample of fish meal and HP 300 was collected and analyzed for AA content and proximate …

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The Effects Of Feeding Benzoic Acid And Essential Oils On Growth Performance, Survivability And Fecal Characteristics Of Grower Pigs, M. T. Thayer, A. Langemeier, S. Scotten, J. L. Nelssen, Z. Ou, J. R. Bergstrom Jan 2017

The Effects Of Feeding Benzoic Acid And Essential Oils On Growth Performance, Survivability And Fecal Characteristics Of Grower Pigs, M. T. Thayer, A. Langemeier, S. Scotten, J. L. Nelssen, Z. Ou, J. R. Bergstrom

Kansas Agricultural Experiment Station Research Reports

A total of 200 pigs (DNA Line 200 × 400) with an initial body weight of 81 lb were used to determine the effects of feeding benzoic acid and an essential oil blend (Vevo- Vitall and CRINA Piglets AF, DSM Nutritional Products, Parsippany, NJ) to grower pigs. There were 10 pigs per pen and 10 pens per treatment in this 28-d grower trial. Pigs were allotted by BW and randomly assigned to 1 of 2 dietary treatments. Dietary treatments included a control diet, or the control diet with added benzoic acid (6.00 lb/ ton) paired with an essential oil blend …

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Evaluation Of Elarom Ses With Or Without Tri-Basic Copper Chloride On Nursery Pig Growth Performance, H. Williams, J. C. Woodworth, J. M. Derouchey, S. S. Dritz, M. D. Tokach, R. D. Goodband Jan 2017

Evaluation Of Elarom Ses With Or Without Tri-Basic Copper Chloride On Nursery Pig Growth Performance, H. Williams, J. C. Woodworth, J. M. Derouchey, S. S. Dritz, M. D. Tokach, R. D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 360 weanling pigs (DNA 200 × 400; initially 11.5 lb BW) were used in a 42-d study evaluating the effects of feeding Elarom SES in combination with increasing tri-basic copper chloride on nursery pig performance and fecal consistency. Elarom SES (Trouw Nutrition USA, Highland, IL) is a specialty feed ingredient containing a blend of active ingredients designed to enhance growth performance and gut health. Tri-basic copper chloride (TBCC, Intellibond C, Micronutrients USA, LLC., Indianapolis, IN) is a form of copper (Cu) that has the potential for improved bioavailability and enhanced growth performance. Pigs were weaned at approximately …

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Effects Of A Combination Of Essential Oils (Victus Liv), Increased Zinc Oxide And Copper Sulfate, Or Their Combination In Nursery Diets On Pig Performance, A. Langemeier, J. Morton, S. Scotten, M. T. Thayer, J. L. Nelssen Jan 2017

Effects Of A Combination Of Essential Oils (Victus Liv), Increased Zinc Oxide And Copper Sulfate, Or Their Combination In Nursery Diets On Pig Performance, A. Langemeier, J. Morton, S. Scotten, M. T. Thayer, J. L. Nelssen

Kansas Agricultural Experiment Station Research Reports

A total of 280 weaned pigs (Line 600 × 241; DNA, Columbus, NE; initially 11.4 lb) were used in a 35-d study to compare the effects of feeding growth promoting alternatives (added trace minerals, copper and zinc, or essential oils (Victus LIV; DSM Nutritional Products, Parsippany, NJ), alone or in combination, on nursery pig performance in comparison to Carbadox, (Mecadox, Phibro Animal Health, Teaneck, NJ). Pigs were allotted to 1 of 7 dietary treatments in pens of 5 at weaning in a randomized complete block design with 8 replications per treatment. Dietary treatments were arranged with a negative control diet …

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Impact Of Added Copper And Chlortetracycline On Growth Performance Of Nursery Pigs, M. B. Menegat, K. Capps, H. Williams, J. C. Woodworth, S. S. Dritz, R. G. Amachawadi, T. G. Nagaraja, M. D. Tokach, J. M. Derouchey, R. D. Goodband Jan 2017

Impact Of Added Copper And Chlortetracycline On Growth Performance Of Nursery Pigs, M. B. Menegat, K. Capps, H. Williams, J. C. Woodworth, S. S. Dritz, R. G. Amachawadi, T. G. Nagaraja, M. D. Tokach, J. M. Derouchey, R. D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 320 nursery pigs (DNA 200 × 400 barrows; initially 16.3 lb BW) were used in a 28-d trial to determine the effect of copper (Cu) and chlortetracycline (CTC), fed alone or in combination, on growth performance of weanling pigs. Pigs were weaned at approximately 21 d of age and fed a common pelleted starter diet (non-medicated) for 7 d after weaning. Pigs were allotted to dietary treatments based on BW and location in a randomized complete block design. Dietary treatments were arranged as a 2 × 2 factorial with main effects of added Cu (0 vs. 200 …

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Effects Of Increasing Copper From Tri-Basic Copper Chloride Or A Copper-Chelate On Growth Performance Of Nursery Pigs, C. Carpenter, J. C. Woodworth, J. M. Derouchey, M. D. Tokach, R. D. Goodband, S. S. Dritz, J. L. Usry Jan 2017

Effects Of Increasing Copper From Tri-Basic Copper Chloride Or A Copper-Chelate On Growth Performance Of Nursery Pigs, C. Carpenter, J. C. Woodworth, J. M. Derouchey, M. D. Tokach, R. D. Goodband, S. S. Dritz, J. L. Usry

Kansas Agricultural Experiment Station Research Reports

A total of 1,452 pigs [Group 1; 350 barrows (DNA 200 × 400; initially 13.2 lb)] and [Group 2; 1,102 barrows and gilts (PIC 1050 × 280; initially 13.3 lb)] were used to determine the effects of added Cu source and level on nursery pig performance. There were 5 pigs per pen and 10 replications per treatment in group 1, and 24 to 27 pigs per pen and 6 replications per treatment in group 2. Pens of pigs were allotted by BW to 1 of 7 dietary treatments arranged as a 2 × 3 factorial plus a control diet, with …

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Determination Of The Optimum Standardized Ileal Digestible Lysine Concentration For Finishing Pigs From 225 To 280 Lb, J. Soto, M. D. Tokach, S. S. Dritz, J. C. Woodworth, J. M. Derouchey, R. D. Goodband Jan 2017

Determination Of The Optimum Standardized Ileal Digestible Lysine Concentration For Finishing Pigs From 225 To 280 Lb, J. Soto, M. D. Tokach, S. S. Dritz, J. C. Woodworth, J. M. Derouchey, R. D. Goodband

Kansas Agricultural Experiment Station Research Reports

The objective of this study was to determine the standardized ileal digestible (SID) Lys requirement for growth and carcass performance of 225- to 280-lb finishing pigs. A total of 253 pigs (DNA 600 × 241, initially 224.9 lb BW) were used in a 23-d trial. Pens were blocked by BW and were randomly assigned to diets with 7 or 8 pigs per pen and 8 pens per treatment in a randomized complete block design. Diets were corn and soybean meal-based and fed in meal form. Dietary treatments consisted of 0.45, 0.55, 0.65, or 0.75% SID Lys. Increasing SID Lys increased …

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Optimum Level Of Dietary Crude Protein For Growth Performance And Carcass Characteristics Of Finishing Pigs From 245 To 300 Lb, J. Soto, M. D. Tokach, S. S. Dritz, J. C. Woodworth, J. M. Derouchey, R. D. Goodband Jan 2017

Optimum Level Of Dietary Crude Protein For Growth Performance And Carcass Characteristics Of Finishing Pigs From 245 To 300 Lb, J. Soto, M. D. Tokach, S. S. Dritz, J. C. Woodworth, J. M. Derouchey, R. D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 238 pigs (DNA 600 × 241, initially 246.4 lb) were used in a 26-d trial to determine the optimum dietary CP concentration for growth performance and carcass characteristics of finishing pigs. Pens of 7 or 8 pigs were allotted by BW and randomly assigned to 1 of 5 dietary treatments with 6 replications per treatment. Dietary treatments included 5 levels of CP (9, 10, 11, 12, and 13%) that were formed by reducing the amount of feed-grade amino acids and increasing soybean meal in a corn-based diet. At d 26, pigs were transported to a packing plant …

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Effects Of Dietary Soybean Meal Concentration With Dietary Crude Protein Fixed At 12% On Growth And Carcass Performance Of Finishing Pigs From 250 To 300 Lb, J. Soto, M. D. Tokach, S. S. Dritz, J. C. Woodworth, J. M. Derouchey, R. D. Goodband Jan 2017

Effects Of Dietary Soybean Meal Concentration With Dietary Crude Protein Fixed At 12% On Growth And Carcass Performance Of Finishing Pigs From 250 To 300 Lb, J. Soto, M. D. Tokach, S. S. Dritz, J. C. Woodworth, J. M. Derouchey, R. D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 280 pigs (DNA 600 × 241, initially 251.8 lb) were used in a 23-d trial to determine the effects of dietary soybean meal (SBM) concentration with dietary crude protein, fixed at 12%, on growth performance of finishing pigs from 250 to 300 lb. Pens of 7 or 8 pigs were allotted by BW and randomly assigned to 1 of 6 dietary treatments with 6 replications per treatment. Treatments consisting of 5 levels of SBM (10.6, 7.7, 4.9, 2.7, and 0%) with 12% CP and a negative control treatment with 4.0% SBM and 10% CP. Corn gluten meal …

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Evaluation Of Dietary Phytogenics On Growth Performance And Carcass Characteristics Of Pigs During The Growing-Finishing Phase, J. Soto, M. D. Tokach, S. S. Dritz, J. C. Woodworth, J. M. Derouchey, R. D. Goodband Jan 2017

Evaluation Of Dietary Phytogenics On Growth Performance And Carcass Characteristics Of Pigs During The Growing-Finishing Phase, J. Soto, M. D. Tokach, S. S. Dritz, J. C. Woodworth, J. M. Derouchey, R. D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 317 pigs (DNA 600 × 241, initially 108.6 lb) were used in a 87-d trial to determine the effects of two essential oil mixtures tested individually and in combination on growth performance and carcass characteristics of growing-finishing pigs from 108 to 285 lb. Pens of 9 or 10 mixed-gender pigs were allotted by BW and randomly assigned to 1 of 4 dietary treatments with 8 replications per treatment. Pigs were fed a nutritional program with 4 dietary phases with the same treatments fed in all 4 phases. Experimental treatments included a control diet with no feed additives …

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Further Investigation Evaluating The Effect Of Dietary Chromium Propionate And Yucca Schidigera Supplementation In Finishing Pig Diets, J. T. Gebhardt, J. C. Woodworth, M. D. Tokach, J. M. Derouchey, R. D. Goodband, J. A. Loughmiller, A. L. De Souza, M. J. Rincker, S. S. Dritz Jan 2017

Further Investigation Evaluating The Effect Of Dietary Chromium Propionate And Yucca Schidigera Supplementation In Finishing Pig Diets, J. T. Gebhardt, J. C. Woodworth, M. D. Tokach, J. M. Derouchey, R. D. Goodband, J. A. Loughmiller, A. L. De Souza, M. J. Rincker, S. S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 2,430 pigs (PIC 359 × 1050; initial BW = 64.6 lb) were used to evaluate the effects of dietary chromium propionate (Cr; KemTRACE Cr, Kemin Industries, Des Moines, IA) and aYucca schidigera-based extract (Micro-Aid; DPI Global, Porterville, CA) on growth performance of finishing pigs housed in commercial conditions. Pigs were placed in balanced, mixed-gender pens (27 pigs per pen), blocked by average pen BW, and randomly assigned to treatment. Diets were corn-soybean meal-based and were formulated in 5 dietary phases to meet or exceed NRC6 requirement estimates. Dietary treatments were fed for the full duration …

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