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Horn Fly Control And Growth Implants Are Effective Strategies For Heifers Grazing Flint Hills Pasture, S. S. Trehal, J. L. Talley, K. D. Sherrill, T. Spore, R. N. Wahl, W. R. Hollenbeck, Dale Blasi Jan 2017

Horn Fly Control And Growth Implants Are Effective Strategies For Heifers Grazing Flint Hills Pasture, S. S. Trehal, J. L. Talley, K. D. Sherrill, T. Spore, R. N. Wahl, W. R. Hollenbeck, Dale Blasi

Kansas Agricultural Experiment Station Research Reports

Horn flies (Haematobia irritans (L.)) are considered the most important external parasite that negatively affects pasture-based beef systems with losses estimated to exceed $1 billion annually to the U.S. beef industry. Control strategies have relied heavily on insecticide applications to control horn flies and are implemented when the economic threshold of 200 flies/animal have been exceeded. When horn fly populations are maintained below 200 flies/animal by treating them with insecticides then the level of stress annoyance behaviors such as leg stomping, head throwing, and skin twitching decreases while grazing increases. While most stocker operators utilize some type ...


Zelnate On Arrival Could Decrease The Likelihood Of Subsequent Pulls In Suspect Bovine Respiratory Disease Complex Cases, T. Spore, S. P. Montgomery, G. A. Hanzlicek, W. R. Hollenbeck, R. N. Wahl, J. E. Sears, Dale Blasi Jan 2017

Zelnate On Arrival Could Decrease The Likelihood Of Subsequent Pulls In Suspect Bovine Respiratory Disease Complex Cases, T. Spore, S. P. Montgomery, G. A. Hanzlicek, W. R. Hollenbeck, R. N. Wahl, J. E. Sears, Dale Blasi

Kansas Agricultural Experiment Station Research Reports

Antimicrobial metaphylaxis is an important tool used for the prevention of Bovine Respiratory Disease Complex; a disease with a large economic impact that typically affects newly-weaned beef calves that are marketed and transported a distance from their origin.

There are questions involving the potential benefit of Zelnate, a novel non-antibiotic technology designed to activate an animal’s natural immunity to fight Bovine Respiratory Disease Complex, being used either solely or in combination with metaphylaxis at the time of initial processing of high risk calves. More knowledge is also needed regarding the possible effects of repeated use of Zelnate when subsequent ...


Route Of Mannheimia Haemolytica And Pasteurella Multocida Vaccine Administration Does Not Affect Health Or Performance Of Receiving Heifers, T. Spore, M. E. Corrigan, T. R. Parks, C. S. Weibert, M. L. Detray, W. R. Hollenbeck, R. N. Wahl, Dale Blasi Jan 2017

Route Of Mannheimia Haemolytica And Pasteurella Multocida Vaccine Administration Does Not Affect Health Or Performance Of Receiving Heifers, T. Spore, M. E. Corrigan, T. R. Parks, C. S. Weibert, M. L. Detray, W. R. Hollenbeck, R. N. Wahl, Dale Blasi

Kansas Agricultural Experiment Station Research Reports

Light weight stocker calves often experience health problems shortly after arrival to feeding facilities. Preventative health programs are routinely administered to calves upon arrival to reduce the incidence of Bovine Respiratory Disease. The major route of vaccine administration in cattle is via injection through either intramuscular or subcutaneous routes. Several products have been introduced that utilize the intranasal route of vaccine administration. There are several reasons why intranasal vaccine administration may be more beneficial: 1) Intranasal vaccine administration alleviates concerns that injections pose for Beef Quality Assurance programs. 2) Intranasal vaccine administration may be less stressful on the animal. 3 ...


Producer Opinions On Antibiotic Use In The Beef Industry, T. Lee, C. D. Reinhardt, E. F. Schwandt, D. U. Thomson Jan 2017

Producer Opinions On Antibiotic Use In The Beef Industry, T. Lee, C. D. Reinhardt, E. F. Schwandt, D. U. Thomson

Kansas Agricultural Experiment Station Research Reports

Antibiotic use in the beef industry is of increasing interest to consumers and has become a point of discussion for producers, veterinarians, and professional scientists in recent years. With the vast amount of information available on the internet and social media, consumers are becoming more knowledgeable about beef production practices and the use of antibiotics in the food animal industries. Furthermore, scientists have devoted a large amount of time and money to research to investigate consumer opinions and perspectives about management practices used in food animal production. However, many of these investigations fail to include the opinions and perspectives of ...


Decline In Brahman Breed Influence Of Beef Calf Lots Marketed By Video Auction From 1995 To 2015, E. D. Mccabe, M. E. King, K. E. Fike, K. L. Hill, G. M. Rogers, K. G. Odde Jan 2017

Decline In Brahman Breed Influence Of Beef Calf Lots Marketed By Video Auction From 1995 To 2015, E. D. Mccabe, M. E. King, K. E. Fike, K. L. Hill, G. M. Rogers, K. G. Odde

Kansas Agricultural Experiment Station Research Reports

Brahman cattle are widely known for their ability to tolerate hot and humid climates as well as for their insect and parasite resistance. An estimated 40% of all beef cows in the United States are located in the southern region, which has a relatively hot climate. Historically, many of these beef cows have had at least some Brahman influence. The opportunity to evaluate potential changes in the influence of the Brahman breed on beef calves produced in the United States was available through lots of beef calves marketed through a video auction service. The objective was to characterize the potential ...


Survey Of Cattle Feedlot Facilities In The High Plains Region Of The United States, J. C. Simroth, D. U. Thomson, E. F. Schwandt, S. J. Bartle, C. K. Larson, C. D. Reinhardt Jan 2017

Survey Of Cattle Feedlot Facilities In The High Plains Region Of The United States, J. C. Simroth, D. U. Thomson, E. F. Schwandt, S. J. Bartle, C. K. Larson, C. D. Reinhardt

Kansas Agricultural Experiment Station Research Reports

Defining the appropriate dimensions and type of feeding facilities for feedlot cattle fed in outdoor pens is important because the characteristics of these facilities have a significant impact on the performance, welfare, and health of cattle housed in those facilities, as well as a considerable impact on the final cost of the project. Although multiple sources can be found in the literature that provide recommendations with regard to design of facilities to be used in outdoor feeding facilities for feedlot cattle, there are no published data that describe the dimensions and type of feeding facilities currently used by the feedlot ...


Differences In Efficacy Between Gamithromycin, Tilmicosin, And Tulathromycin As Metaphylactic Treatments In High Risk Calves For Bovine Respiratory Disease, T. Miller, M. E. Hubbert, E. F. Schwandt, D. U. Thomson, C. D. Reinhardt Jan 2017

Differences In Efficacy Between Gamithromycin, Tilmicosin, And Tulathromycin As Metaphylactic Treatments In High Risk Calves For Bovine Respiratory Disease, T. Miller, M. E. Hubbert, E. F. Schwandt, D. U. Thomson, C. D. Reinhardt

Kansas Agricultural Experiment Station Research Reports

The cost of Bovine Respiratory Disease to the beef industry due to death, poorer conversions, and therapy is estimated to cost more than $3 billion per year. Identifying and mitigating Bovine Respiratory Disease in cattle can be difficult due to the increased susceptibility for Bovine Respiratory Disease in high risk cattle. One management option to minimize an outbreak of respiratory disease is the use of metaphylaxis, the mass treatment of a group of calves to reduce the incidence and adverse effects of respiratory disease on high risk animals. Criteria used to determine the necessity of metaphylactic treatment against Bovine Respiratory ...


Water Intake In Growing Beef Cattle, C. M. Ahlberg, K. Allwardt, A Broocks, K Bruno, A. Taylor, C. Krehbiel, C. Richards, S. Place, U. Desilva, D. Vanoverbeke, R. Mateescu, M. M. Rolf Jan 2017

Water Intake In Growing Beef Cattle, C. M. Ahlberg, K. Allwardt, A Broocks, K Bruno, A. Taylor, C. Krehbiel, C. Richards, S. Place, U. Desilva, D. Vanoverbeke, R. Mateescu, M. M. Rolf

Kansas Agricultural Experiment Station Research Reports

Water is an essential part of livestock and human diets and is often thought of as an inexpensive, readily available renewable natural resource. However, the amount of competition between humans, wildlife, feed production, and livestock for high-quality water is increasing, not only from the effects of drought but from the pressure of a growing global population (Nardone et al., 2010). With limited resources available for production agriculture, there is a need to identify and select for efficient animals that can produce more product with fewer inputs. Although some work has been done in dairy cattle, very little data is available ...


Feeding A Novel Trace Mineral At Lower Levels To Grazing Stocker Cattle Does Not Impair Performance, C. S. Weibert, W. R. Hollenbeck, S. B. Laudert, J. D. Kubick, Dale Blasi Jan 2017

Feeding A Novel Trace Mineral At Lower Levels To Grazing Stocker Cattle Does Not Impair Performance, C. S. Weibert, W. R. Hollenbeck, S. B. Laudert, J. D. Kubick, Dale Blasi

Kansas Agricultural Experiment Station Research Reports

When grazing stocker cattle on native Flint Hills pasture, optimizing growth rate is important in determining overall profitability. The correct selection of mineral supplements is an important decision that can be used to help promote overall productivity during a grazing season.


Feeding Nucleotides With Corn Germ Meal Or Dried Corn Distillers Grains Does Not Promote Growth Performance Of Receiving And Growing Calves, M. L. Detray, S. P. Montgomery, E. Titgemeyer, A. E. Wertz-Lutz, Christopher Vahl, A. T. Schilling, W. R. Hollenbeck, Dale Blasi Jan 2017

Feeding Nucleotides With Corn Germ Meal Or Dried Corn Distillers Grains Does Not Promote Growth Performance Of Receiving And Growing Calves, M. L. Detray, S. P. Montgomery, E. Titgemeyer, A. E. Wertz-Lutz, Christopher Vahl, A. T. Schilling, W. R. Hollenbeck, Dale Blasi

Kansas Agricultural Experiment Station Research Reports

Corn germ meal is often used in swine and poultry diets, but very little information exists on the effects on beef cattle and on newly arrived stressed cattle. When formulating receiving and growing diets, calf health and stress are important factors to consider. Including nucleotides, an immune-boosting feed additive may aid in gastrointestinal health of an animal and furthermore improve growth performance. The objective of these experiments was to determine: 1) the effects of corn germ meal in comparison to dried corn distillers grains on growth performance and 2) the effects of nucleotides on growth performance, by receiving and growing ...


High Energy Digestible Fiber-Based Diets Improve Efficiency In Growing Heifers, T. Spore, S. P. Montgomery, G. A. Hanzlicek, K. T. Cavalli, W. R. Hollenbeck, R. N. Wahl, E. Titgemeyer, Christopher Vahl, Dale Blasi Jan 2017

High Energy Digestible Fiber-Based Diets Improve Efficiency In Growing Heifers, T. Spore, S. P. Montgomery, G. A. Hanzlicek, K. T. Cavalli, W. R. Hollenbeck, R. N. Wahl, E. Titgemeyer, Christopher Vahl, Dale Blasi

Kansas Agricultural Experiment Station Research Reports

An inherent challenge of long hauled, highly stressed calves is decreased feed intake upon destination arrival. Highly stressed, newly received stocker calves not consuming adequate amounts of energy are prone to a variety of disorders such as Bovine Respiratory Disease Complex and decreased performance throughout the feeding period. One mechanism that can be used to increase energy intake upon arrival is to make the diet more energy dense. Often times, this is accomplished by the addition of cereal grains high in fermentable carbohydrate including starch. Unfortunately, this has also been linked to increasing morbidity due to metabolic disorders. The goal ...


Supplemental Zinc Sulfate Interacts With Optaflexx In Feedlot Heifers, C. L. Van Bibber-Krueger, R. G. Amachawadi, H. M. Scott, J. M. Gonzalez, J. S. Drouillard Jan 2017

Supplemental Zinc Sulfate Interacts With Optaflexx In Feedlot Heifers, C. L. Van Bibber-Krueger, R. G. Amachawadi, H. M. Scott, J. M. Gonzalez, J. S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Optaflexx is a beta-adrenergic agonist, and is fed to cattle during the final 28 to 42 days on feed to improve growth rate and feed efficiency. Beta-adrenergic agonists are repartitioning agents that stimulate muscle deposition at the expense of fat deposition. Zinc is a trace mineral element that functions as an important component of many enzyme systems, including those associated with nucleic acid synthesis and metabolism of proteins and carbohydrates, thus making it an essential nutrient for growth. The purpose of this study was to evaluate growth, carcass characteristics, and plasma urea nitrogen concentrations in finishing heifers supplemented with Optaflexx ...


Particle Size Of Dry-Rolled Corn Affects Starch Digestibility But Not Feedlot Performance, E. F. Schwandt, J. Wagner, T. Engle, S. J. Bartle, D. U. Thomson, C. D. Reinhardt Jan 2017

Particle Size Of Dry-Rolled Corn Affects Starch Digestibility But Not Feedlot Performance, E. F. Schwandt, J. Wagner, T. Engle, S. J. Bartle, D. U. Thomson, C. D. Reinhardt

Kansas Agricultural Experiment Station Research Reports

Dry-rolling corn is a common practice in feedlots located in the Midwestern and Northern Plains regions of the United States. Optimizing total digestive tract starch utilization in diets containing dry-rolled corn is essential for maximizing efficiency. However, recommendations often suggest that grain be coarsely cracked to avoid producing an excessive amount of fine material that could potentially increase the rate of fermentation, reduce rumen pH, and cause digestive disturbances.

Wet distillers byproducts may be effectively used as a protein and energy source for feedlot finishing cattle and can replace a portion of the dry-rolled corn in the diet. The average ...


A Survey Of Dry Processed Corn Particle Size And Fecal Starch In Midwestern U.S. Feedlots, E. F. Schwandt, D. U. Thomson, S. J. Bartle, C. D. Reinhardt Jan 2017

A Survey Of Dry Processed Corn Particle Size And Fecal Starch In Midwestern U.S. Feedlots, E. F. Schwandt, D. U. Thomson, S. J. Bartle, C. D. Reinhardt

Kansas Agricultural Experiment Station Research Reports

Optimizing grain processing practices in cattle feeding operations is critical to reaching maximum feed utilization efficiency. An increased degree of grain processing has consistently shown improved dry matter and starch digestibility; however, it exists with conflicting results on improving performance in finishing cattle. These inconsistencies are likely due to diet composition, such as roughage and co-product level, that could offset the effects of reduced particle size on rate of fermentation thus reducing the risk of digestive dysfunction.

Finishing diets are commonly formulated with processed grain to increase utilization of starch and improve animal performance. Processing methods including steam-flaking, grinding, or ...


Brahman Genetics Negatively Impact Protein Degradation And Tenderness Of Longissimus Lumborum Steaks, But Do Not Influence Collagen Cross-Linking, K. J. Phelps, D. D. Johnson, M. A. Elzo, C. B. Paulk, J. M. Gonzalez Jan 2017

Brahman Genetics Negatively Impact Protein Degradation And Tenderness Of Longissimus Lumborum Steaks, But Do Not Influence Collagen Cross-Linking, K. J. Phelps, D. D. Johnson, M. A. Elzo, C. B. Paulk, J. M. Gonzalez

Kansas Agricultural Experiment Station Research Reports

Beef tenderness is an important factor contributing to consumer eating satisfaction of beef products. Tenderness is dependent on several factors including: breed-type, postmortem age time, myofibrillar muscle protein degradation, and collagen content. During the past 30 years, numerous studies have indicated steaks from cattle with a greater percentage of Brahman genetics are tougher than steaks from Bos taurus cattle. The cause of tougher steaks is commonly attributed to Brahman cattle having a greater calpastatin activity which inhibits calpains, the enzymes responsible for myofibrillar protein degradation during the postmortem aging process. Some researchers have reported calpastatin activity was poorly correlated to ...


Tenderness, Juiciness, And Flavor Contribute To The Overall Consumer Beef Eating Experience, L. N. Drey, T. G. O'Quinn Jan 2017

Tenderness, Juiciness, And Flavor Contribute To The Overall Consumer Beef Eating Experience, L. N. Drey, T. G. O'Quinn

Kansas Agricultural Experiment Station Research Reports

Overall beef palatability can be attributed to three primary traits, tenderness, juiciness, and flavor, as well as the interaction among these traits (Smith and Carpenter, 1974). Multiple authors have worked to identify which of these palatability traits contributes the most to overall eating satisfaction and have historically identified tenderness as the most important palatability trait (Savell et al., 1987; Miller et al., 1995a; Savell et al., 1999; Egan et al., 2001). Overall eating quality of beef steaks may excel at one or even two of these traits, yet fail to meet consumer eating expectations due to the unsatisfactory level of ...


Marbling Texture Does Not Affect Consumer Preference Of Beef Strip Loin Steaks, K. R. Vierck, J. M. Gonzalez, T. A. Houser, E. A. Boyle, T. G. O'Quinn Jan 2017

Marbling Texture Does Not Affect Consumer Preference Of Beef Strip Loin Steaks, K. R. Vierck, J. M. Gonzalez, T. A. Houser, E. A. Boyle, T. G. O'Quinn

Kansas Agricultural Experiment Station Research Reports

In the beef industry, U.S. Department of Agriculture quality grades and marbling levels have long been associated with beef palatability and eating experience. Marbling score and maturity are the two major components of USDA quality grade. Traditionally, marbling texture has not been considered a factor of marbling score; however, there are often discernments at both the packer and retail level, as more than 75% of branded beef programs supervised by USDA-AMS have a specification of fine or medium textured marbling (USDA, 2015). Additionally, in some cases, fine and medium textured steaks are graded higher than their coarse counterparts, which ...


Coarse Marbled Beef Is Juicier And More Flavorful Than Fine Or Medium Marbled Beef, K. R. Vierck, J. M. Gonzalez, T. A. Houser, E. A. Boyle, T. G. O'Quinn Jan 2017

Coarse Marbled Beef Is Juicier And More Flavorful Than Fine Or Medium Marbled Beef, K. R. Vierck, J. M. Gonzalez, T. A. Houser, E. A. Boyle, T. G. O'Quinn

Kansas Agricultural Experiment Station Research Reports

Beef palatability and eating experience is driven primarily by U.S. Department of Agriculture quality grade and marbling levels. Beef USDA quality grade consists of both marbling levels and maturity. Conventionally, marbling texture has not been a consideration of quality grades. Currently, only one study has assessed the effects of marbling texture on beef palatability. Despite this, preferences for fine or medium marbling exist with both packers and retailers, as approximately 75% of branded beef programs under the supervision of USDA-AMS require fine or medium textured marbling, which equates to losses of premiums for packers and producers (USDA, 2016). The ...


Angus Ground Beef Has Higher Overall Consumer Acceptability Than Grass-Fed Ground Beef, F. Najar, E. A. Boyle, T. G. O'Quinn, R. Danler, S. Stroda, L. N. Drey, K. R. Vierck, G. D. Mccoy Jan 2017

Angus Ground Beef Has Higher Overall Consumer Acceptability Than Grass-Fed Ground Beef, F. Najar, E. A. Boyle, T. G. O'Quinn, R. Danler, S. Stroda, L. N. Drey, K. R. Vierck, G. D. Mccoy

Kansas Agricultural Experiment Station Research Reports

Ground beef is considered one of the major sources of animal protein in the U.S., accounting for approximately 40% of beef consumption per capita (USDA, 2011). Consumers’ concern about animal welfare, sustainable production, and low fat products has influenced purchasing decisions, resulting in an increased demand for grass-fed ground beef (U.S. Department of Agriculture, Agricultural Marketing Service, 2007). Grass-fed cattle are fed natural based forages or grass-hay, thus resulting in a higher deposition of omega-3 fatty acids in meat. Meat from grain-fed cattle has a lower omega-3 content due to the saturated and monounsaturated fatty acid profile found ...


Relationship Between Trauma Sustained At Unloading And Carcass Bruise Prevalence In Finished Cattle At Commercial Slaughter Facilities, T. Lee, C. D. Reinhardt, S. J. Bartle, Christopher Vahl, M. Siemens, E. F. Schwandt, D. U. Thomson Jan 2017

Relationship Between Trauma Sustained At Unloading And Carcass Bruise Prevalence In Finished Cattle At Commercial Slaughter Facilities, T. Lee, C. D. Reinhardt, S. J. Bartle, Christopher Vahl, M. Siemens, E. F. Schwandt, D. U. Thomson

Kansas Agricultural Experiment Station Research Reports

Bruising in cattle can be an indicator of poor animal welfare, as well as a significant cause of economic loss due to decreased carcass value. Previous literature suggests sources of trauma causing bruising in beef carcasses include horn prevalence, rough transport conditions, cattle handling techniques, cattle temperament, and vehicle design; however, evidence of correlations between such trauma and actual carcass bruising is limited. The objective of this study was to evaluate the relationship between trauma sustained at unloading and carcass bruise prevalence in finished cattle at commercial slaughter facilities.


Liver Abscess Severity At Slaughter Does Not Affect Meat Tenderness And Sensory Attributes In Commercially Finished Beef Cattle Fed Without Tylosin Phosphate, E. J. Mccoy, T. G. O'Quinn, E. F. Schwandt, C. D. Reinhardt, D. U. Thomson Jan 2017

Liver Abscess Severity At Slaughter Does Not Affect Meat Tenderness And Sensory Attributes In Commercially Finished Beef Cattle Fed Without Tylosin Phosphate, E. J. Mccoy, T. G. O'Quinn, E. F. Schwandt, C. D. Reinhardt, D. U. Thomson

Kansas Agricultural Experiment Station Research Reports

Liver abscesses are a significant problem in the United States’ cattle feeding industry, costing the industry an estimated $15.9 million annually in liver condemnation, trim losses, and reduced carcass weights and quality grades. Recent reported incidence rates of liver abscesses at slaughter range from 10 to 20%. Liver abscess incidence may be influenced by a number of factors including: breed, gender, diet, days on feed, cattle type, season, and geographical location. Liver abscesses typically occur secondary to rumen insults caused by acidosis or rumenitis. It has been proposed that pathogens associated with liver abscess formation enter the blood stream ...


Cattlemen’S Day 2017, Full Report Jan 2017

Cattlemen’S Day 2017, Full Report

Kansas Agricultural Experiment Station Research Reports

Full Cattlemen's Day 2017 publication, including research articles on beef cattle management, nutrition, and meat science.


Effects Of Supplementation With Corn Or Dried Distillers Grains On Gains Of Heifer Calves Grazing Smooth Bromegrass Pastures, L. W. Lomas, J. L. Moyer Jan 2017

Effects Of Supplementation With Corn Or Dried Distillers Grains On Gains Of Heifer Calves Grazing Smooth Bromegrass Pastures, L. W. Lomas, J. L. Moyer

Kansas Agricultural Experiment Station Research Reports

A total of 90 heifer calves grazing smooth bromegrass pastures were used to compare supplementation with 0.5% of body weight per head daily of corn or dried distillers grains (DDG) in 2014, 2015, and 2016. Daily gains of heifers supplemented with corn or DDG were similar (P > 0.05).


Evaluation Of Supplemental Energy Source For Grazing Stocker Cattle, L. W. Lomas, J. K. Farney, J. L. Moyer Jan 2017

Evaluation Of Supplemental Energy Source For Grazing Stocker Cattle, L. W. Lomas, J. K. Farney, J. L. Moyer

Kansas Agricultural Experiment Station Research Reports

A total of 108 steers grazing smooth bromegrass pastures were used to evaluate the effects of supplemental energy source on available forage, grazing gains, subsequent finishing gains, and carcass characteristics in 2014, 2015, and 2016. Supplementation treatments evaluated were: no supplement, a supplement with starch as the primary source of energy, and a supplement with fat as the primary source of energy. Supplements were formulated to provide the same quantity of protein and energy per head daily. Supplementation with the starch-based or fat-based supplement during the grazing phase resulted in higher (P < 0.05) grazing gains than feeding no supplement during all three years. In 2014 and 2016, grazing gains of steers supplemented with the starch-based or fat-based supplement were similar (P > 0.05). In 2015, steers supplemented with the ...


Effects Of Interseeding Ladino Clover Into Tall Fescue Pastures Of Varying Endophyte Status On Grazing Performance Of Stocker Steers, L. W. Lomas, J. L. Moyer Jan 2017

Effects Of Interseeding Ladino Clover Into Tall Fescue Pastures Of Varying Endophyte Status On Grazing Performance Of Stocker Steers, L. W. Lomas, J. L. Moyer

Kansas Agricultural Experiment Station Research Reports

Sixty-four yearling steers grazing tall fescue pastures were used to evaluate the effects of fescue cultivar and interseeding ladino clover on grazing gains and available forage. Fescue cultivars evaluated were high-endophyte ‘Kentucky 31,’ low-endophyte ‘Kentucky 31,’ ‘HM4,’ and ‘MaxQ.’ Steers that grazed pastures of low-endophyte ‘Kentucky 31,’ ‘HM4,’ or ‘MaxQ’ gained significantly more (P < 0.05) and produced more (P < 0.05) gain/a than those that grazed high-endophyte ‘Kentucky 31’ pastures. Gains of cattle that grazed low-endophyte ‘Kentucky 31,’ ‘HM4,’ or ‘MaxQ’ were similar (P > 0.05). High-endophyte ‘Kentucky 31’ pastures had more (P < 0.05) available forage than lowendophyte ‘Kentucky 31,’ ‘HM4,’ or ‘MaxQ’ pastures.


Comparison Of Two Organic Trace Mineral Supplements For Cows Grazing Tall Fescue, J. K. Farney Jan 2017

Comparison Of Two Organic Trace Mineral Supplements For Cows Grazing Tall Fescue, J. K. Farney

Kansas Agricultural Experiment Station Research Reports

The purpose of this study was to determine the effects of two sources of organic trace mineral and two sources of magnesium supplementation on cow performance of springcalving cows on K31 endophyte-infected fescue. The two treatments were organic trace minerals (zinc (Zn), copper (Cu), and manganese (Mn)) offered free choice as an amino-acid chelate with magnesium (Mg) as an amino acid chelate (CHEL) or organic trace mineral supplement with amino-acid complex with magnesium supplied as magnesium oxide (COMP). Mineral was offered free-choice beginning 30 days before breeding season on 4 ranches with 6 pastures per treatment (cows n = 203). Blood ...


Searc Agricultural Research 2017, L. W. Lomas Jan 2017

Searc Agricultural Research 2017, L. W. Lomas

Kansas Agricultural Experiment Station Research Reports

Southeast Agricultural Research Center, Agricultural Research 2017. Topics include grazing and supplemental feed for beef cattle, forage, pasture, hay, grasses, legumes, tillage, fertilizer, corn, soybeans, wheat, and soil health and variability.


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.


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 ...


Effects Of Increasing Dietary Lysine On Performance Of Lactating Sows In Commercial Conditions, K. M. Gourley, J. C. Woodworth, J. M. Derouchey, M. D. Tokach, S. S. Dritz, R. D. Goodband, S. J. Kitt, E. W. Stephenson Jan 2017

Effects Of Increasing Dietary Lysine On Performance Of Lactating Sows In Commercial Conditions, K. M. Gourley, J. C. Woodworth, J. M. Derouchey, M. D. Tokach, S. S. Dritz, R. D. Goodband, S. J. Kitt, E. W. Stephenson

Kansas Agricultural Experiment Station Research Reports

A total of 710 mixed parity sows (Line 241; DNA, Columbus, NE) were used in a 21-d study to determine the effect of standardized ileal digestible (SID) lysine (Lys) intake during lactation on sow and litter performance and subsequent reproductive performance of primiparous and multiparous sows housed in a commercial production system. On d 112 of gestation, females were weighed and blocked by BW within expected farrowing date and parity (1 to 7) and randomly assigned to 1 of 4 dietary treatments within blocks. Dietary treatments were corn-soybean meal-based and consisted of increasing SID Lys (0.75, 0.90, 1 ...