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Kansas Agricultural Experiment Station Research Reports

2007

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Articles 1 - 30 of 82

Full-Text Articles in Life Sciences

Ability Of Low Profile Cross-Ventilated Freestall Barns To Improve Environmental Conditions For Dairy Cattle, John F. Smith, Joseph P. Harner, Michael J. Brouk Jan 2007

Ability Of Low Profile Cross-Ventilated Freestall Barns To Improve Environmental Conditions For Dairy Cattle, John F. Smith, Joseph P. Harner, Michael J. Brouk

Kansas Agricultural Experiment Station Research Reports

Recently, there has been interest in constructing mechanical ventilation with evaporative pads to improve the environmental conditions for cows during periods of heat stress. Low profile cross-ventilated freestalls with evaporative pads (LPCV) have become a popular system. The purpose of this study was to evaluate how well these LPCV systems improve the temperature-humidity index (THI) under different ambient conditions. As ambient humidity increases, ability of the LPCV to reduce THI is decreased. Producers wishing to construct LPCV barns should carefully evaluate the climate in which they want to construct LPCV structures.; Dairy Day, 2007, Kansas State University, Manhattan, KS, 2007 ...


Field Day 2007, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service Jan 2007

Field Day 2007, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service

Kansas Agricultural Experiment Station Research Reports

Each Field Day report consists of individual research reports on topics specific to the region, including cultural methods for most of the major crops grown in Kansas, mitigating the effects of weeds, insects, and disease associated with those crops, and irrigation. Research is conducted and reports written by staff of the K-State Research and Extension Southwest Research Extension Center.


Field Research 2006, Kansas State University. Department Of Agronomy Jan 2007

Field Research 2006, Kansas State University. Department Of Agronomy

Kansas Agricultural Experiment Station Research Reports

No abstract provided.


Effects Of Srp Vaccine In Reducing E. Coli O157:H7 In Cattle, A. B. Thornton, D. U. Thomson, J. T. Fox, G. H. Loneragan, D. Burkhardt, T. G. Nagaraja Jan 2007

Effects Of Srp Vaccine In Reducing E. Coli O157:H7 In Cattle, A. B. Thornton, D. U. Thomson, J. T. Fox, G. H. Loneragan, D. Burkhardt, T. G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Cattle are the main reservoir of Escherichia coli O157:H7, which is a foodborne pathogen that causes bloody diarrhea in adults and kidney damage in children . E. coli O157 is shed in the feces of cattle, which can be a contamination source of water, ground beef, fresh vegetables, and unpasterized milk and fruit juices. In 2003, shiga-toxin producing E. coli O157:H7 caused 73,000 illnesses, which resulted in over 2,000 hospitalizations and 60 deaths in the United States. The estimated annual cost of this illness was $405 million, which included $370 million for premature deaths, $30 million for ...


Veterinarians Are Most Popular Source Of Information Utilized By Cow-Calf Producers, S.J. Breiner, S.A. Grau, B.B. Barnhardt, A.M. Bryant, Kris Boone, Dale A. Blasi, Ted C. Schroeder, Ryan M. Breiner Jan 2007

Veterinarians Are Most Popular Source Of Information Utilized By Cow-Calf Producers, S.J. Breiner, S.A. Grau, B.B. Barnhardt, A.M. Bryant, Kris Boone, Dale A. Blasi, Ted C. Schroeder, Ryan M. Breiner

Kansas Agricultural Experiment Station Research Reports

Sources and channels of information used among agriculturalists have long been important issues in Cooperative Extension. A source is an entity that originates a message. By understanding from whom producers receive messages, there exists a better framework to deliver information. Moreover, when considering the demographics of today's producers, as well as the sources of information utilized, the industry can work toward better educating and understanding the concerns of these individuals.


The Effects Of Ractopamine-Hcl (Optaflexx) On Finishing Feedlot Heifers, M.J. Quinn, E.R. Loe, M.E. Corrigan, James S. Drouillard, Brandon E. Depenbusch Jan 2007

The Effects Of Ractopamine-Hcl (Optaflexx) On Finishing Feedlot Heifers, M.J. Quinn, E.R. Loe, M.E. Corrigan, James S. Drouillard, Brandon E. Depenbusch

Kansas Agricultural Experiment Station Research Reports

Whether occurring naturally or synthetically, beta-agonists are classified as phenethanolamines based on their chemical structure. Other specificities of structure determine the exact behavior of the compound in animals. Beta-agonists bind to specific receptors on the cell membranes of skeletal muscle, adipose,and other tissues. Upon binding, these agents alter metabolic pathways, ultimately causing a repartitioning of nutrients to increase muscle and decrease fat accretion. In cattle, betaagonists such as cimaterol and clenbuterol improve feed efficiency, average daily gain, and longissimus muscle area. The proposed effects of ractopamine HCl are similar to those of other beta-agonists. The purpose of this study ...


Aging, Blade Tenderization, And Enzyme Injection Impacts Tenderness Of Muscles From Fed Cull Cows Of Known Age, Stacy L. Hutchinson, T.T. Marston, Melvin C. Hunt, John A. Unruh Jan 2007

Aging, Blade Tenderization, And Enzyme Injection Impacts Tenderness Of Muscles From Fed Cull Cows Of Known Age, Stacy L. Hutchinson, T.T. Marston, Melvin C. Hunt, John A. Unruh

Kansas Agricultural Experiment Station Research Reports

Approximately 16% of the 31 million head of cattle harvested in the United States in 2005 were aged cows. Cow meat is known to be tougher than meat from young steers and heifers, and it typically has a less desirable, darker color. It is generally assumed that cow meat needs to be ground or have some form of postmortem tenderization applied to be merchandized as a whole muscle product. The knuckle, top sirloin, and top blade muscles have been identified as muscles that potentially can be upgraded to medium-priced steaks. Most cow steaks are fabricated by food-service providers for their ...


Ammonia Ion Selective Electrode And Indophenol Methods Can Be Used Successfully To Evaluate Meat Contaminated By Ammonia, F. Hijaz, J. Scott Smith, Curtis L. Kastner Jan 2007

Ammonia Ion Selective Electrode And Indophenol Methods Can Be Used Successfully To Evaluate Meat Contaminated By Ammonia, F. Hijaz, J. Scott Smith, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Anhydrous ammonia is used as a refrigerant in large warehouses for cooling meats, fruits, vegetables, milk, and other products. Ammonia offers several advantages over other refrigerants; it does not harm the ozone layer and is a very efficient heat transfer agent. However, cold storage facilities sometimes have ammonia leaks. When this happens, products are held for an indeterminate period or are condemned because there is no official method to evaluate the degree of product contamination. In one case, a warehouse owner discarded a product because he could not prove that it was safe. His insurance company would not compensate him ...


Ultrasound Sorting Increases Feedlot Profitability, A. Garmyn, Daniel W. Moser Jan 2007

Ultrasound Sorting Increases Feedlot Profitability, A. Garmyn, Daniel W. Moser

Kansas Agricultural Experiment Station Research Reports

Feedlot managers often market entire pens as mixed groups, resulting in lower-quality, over-finished, or heavyweight carcasses. As the cattle industry has moved towards valuebased marketing systems, finding a costeffective tool that predicts future carcass merit and sorts cattle into outcome groups, thus producing a more uniform product at harvest, is of great interest to feedyard managers. The objective of this research was to determine the profitability of sorting feedlot cattle at reimplant time by using ultrasound and computer technology to group cattle into uniform market groups.


Supplementation Of Stocker Steers Grazing Native Flint Hills Pasture With A Protein And Mineral Supplement Increases Average Daily Gains, B.B. Barnhardt, M.P. Epp, A.M. Bryant, P.J. Guiroy, Dale A. Blasi Jan 2007

Supplementation Of Stocker Steers Grazing Native Flint Hills Pasture With A Protein And Mineral Supplement Increases Average Daily Gains, B.B. Barnhardt, M.P. Epp, A.M. Bryant, P.J. Guiroy, Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

Supplementation of range cattle with minerals is a common management practice that is used to maximize performance. Flint Hills grasses provide an adequate amount of protein for the diet through the first half of a doublestock grazing period, but declining protein content of native grasses during the latter parts of the grazing season typically cause decreases in forage digestibility and daily gains. The goal of this experiment was to measure differences in performance between steers that were supplemented with a) loose salt for the entire grazing period, b) a stocker mineral supplement for the entire grazing period, or c) a ...


Wet Distiller’S Grains With Solubles In Beef Finishing Diets Comprised Of Steam-Flaked Or Dry-Rolled Corn, M.L. May, M.J. Quinn, James S. Drouillard, Charles E. Walker Jan 2007

Wet Distiller’S Grains With Solubles In Beef Finishing Diets Comprised Of Steam-Flaked Or Dry-Rolled Corn, M.L. May, M.J. Quinn, James S. Drouillard, Charles E. Walker

Kansas Agricultural Experiment Station Research Reports

The purpose of this experiment was to determine optimal levels of distiller's grains in finished diets with steam-flaked corn or dry rolled corn. Distiller's grains have been used extensively in regions of the country in which dry-rolled and high-moisture grains are prevalent. Production of fuel ethanol is now expanding into the High Plains, where feedlots more commonly use steam flaking. The cost to produce flaked corn is higher than the cost to produce dry rolled corn, and with rising energy costs (especially natural gas), this spread is becoming more dramatic. Comparing the use of wet distiller's grains ...


Dried Distiller’S Grains Improve The Performance Of Beef Cattle Intensively Grazing Early Summer Bluestem Pasture, M. Epp, B. Barnhardt, A. Bryant, Dale A. Blasi Jan 2007

Dried Distiller’S Grains Improve The Performance Of Beef Cattle Intensively Grazing Early Summer Bluestem Pasture, M. Epp, B. Barnhardt, A. Bryant, Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

Distiller's grains are byproducts of the production of ethanol from grains and are an excellent source of protein and energy for cattle. The most prevalent use of distiller's grains is in the finishing beef production sector. There is limited research available that has evaluated effectiveness of distiller's grains as a supplement for grazing beef cattle. Digestible protein content in grass begins to decrease in midsummer, resulting in lower average daily gains. The objective of this study was to measure the daily gain of yearling steers supplemented with different levels of dried distiller's grains while grazing doublestock ...


Optimizing Use Of Distiller’S Grains With Solubles (Dgs) In Finishing Cattle Diets, E.R. Loe, M.E. Corrigan, M.J. Quinn, Brandon E. Depenbusch, James S. Drouillard Jan 2007

Optimizing Use Of Distiller’S Grains With Solubles (Dgs) In Finishing Cattle Diets, E.R. Loe, M.E. Corrigan, M.J. Quinn, Brandon E. Depenbusch, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Rapid expansion of the fuel ethanol industry has increased availability of distillery byproducts. Distiller's grains with solubles (DGS) are the predominant byproduct of fermenting grains to fuel ethanol. During this process, the majority of starch is removed from the grain, and residual components of the grain are concentrated into the distiller's byproduct. Distiller's grains with solubles contain the bran, which is high in fiber; the germ, which is high in fat; and the protein. Given the relatively high fiber content of DGS, it is conceivable that DGS could serve as a replacement for roughage in finishing diets ...


Degermed Corn Distiller’S Grains With Solubles (Dgs) Have Feed Value Similar To Traditional Distiller’S Grains, E.R. Loe, M.J. Quinn, M.E. Corrigan, Brandon E. Depenbusch, James S. Drouillard Jan 2007

Degermed Corn Distiller’S Grains With Solubles (Dgs) Have Feed Value Similar To Traditional Distiller’S Grains, E.R. Loe, M.J. Quinn, M.E. Corrigan, Brandon E. Depenbusch, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Rapid expansion of the fuel ethanol industry has greatly increased availability of distillery byproducts. Distiller's grains with solubles (DGS) are the predominant byproduct of fermenting grains into fuel ethanol. During this process, starch is removed from the grain and the residual components of the grain are concentrated in the DGS. Improvements in the conversion of cereal grains to ethanol have been fueled by recent changes in the production process. Broin Companies (Sioux Falls, SD) have developed a technology that removes the germ before the fermentation process. The resulting byproduct contains more protein, less crude fat, and less phosphorus compared ...


Supplementation With Degradable Intake Protein Increases Low-Quality Forage Utilization And Microbial Use Of Recycled Urea, T.A. Wickersham, R.C. Cochran, E.E. Wickersham, D.P. Gnad, Evan C. Titgemeyer Jan 2007

Supplementation With Degradable Intake Protein Increases Low-Quality Forage Utilization And Microbial Use Of Recycled Urea, T.A. Wickersham, R.C. Cochran, E.E. Wickersham, D.P. Gnad, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

A common production practice throughout the United States is to supplement protein to cattle consuming low-quality forage (forage with a crude protein content of less than 7%) in order to improve animal performance (i.e., maintain body condition score and body weight) during the winter. Protein supplementation increases forage utilization (intake and digestion) and cow performance by supplying ruminal microbes with protein that is essential for microbial growth. Increased microbial activity in turn provides sources of both protein and energy to the cow. In addition to the protein that is fed and degraded in the rumen, ruminants have the ability ...


An Evaluation Of An Enzyme Blend (Natuzyme®) In Diets For Weanling Pigs, J R. Bergstrom, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Steven S. Dritz Jan 2007

An Evaluation Of An Enzyme Blend (Natuzyme®) In Diets For Weanling Pigs, J R. Bergstrom, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to evaluate the effects of an enzyme blend (Natuzyme®) on nursery pig growth performance. In Exp. 1, a total of 210 pigs (initially 13.6 lb) were used in a 35-d experiment to evaluate the effect of increasing levels of Natuzyme® (0, 0.035, and 0.05%) on weanling pig performance. Natuzyme® was added to either a negative or positive control diet as a 2 × 3 factorial to form six dietary treatments. The negative control diet was a corn-soybean meal-based diet containing 12.5% soy hulls and no antibiotics. The positive control diet was a ...


Omega-3 Fatty Acid Supplementation And The Insulin-Like Growth Factor (Igf) System In Early Pregnancy In Pigs, A Brazle, Theresa J. Rathbun, B Johnson, Duane L. Davis Jan 2007

Omega-3 Fatty Acid Supplementation And The Insulin-Like Growth Factor (Igf) System In Early Pregnancy In Pigs, A Brazle, Theresa J. Rathbun, B Johnson, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

The IGF system of growth factors, receptors and binding proteins functions from early in pregnancy. Recent evidence indicates improved embryo survival in gilts fed supplemental omega-3 fatty acids beginning before conception. Here we report effects of supplementing a corn-soybean meal diet (control) with a marine source of protected omega-3 fatty acids (PFA, 1.5% of diet) on mRNA expression for IGF-I, IGF-II, IGF Binding Protein-3 (IGFBP-3) and IGFBP-5 in the porcine gravid uterus. The PFA (Gromageâ„¢) contained equal amounts of eicosapentanoic (EPA) and docosahexanoic (DHA) acids and replaced corn in the diet beginning when gilts were approximately 170 d old ...


Validation Of Flank-To-Flank Allometric Equations In Predicting Weight Of Lactating Sows And Lactation Weight Change, R C. Sulabo, Michael D. Tokach, E J. Wiedmann, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2007

Validation Of Flank-To-Flank Allometric Equations In Predicting Weight Of Lactating Sows And Lactation Weight Change, R C. Sulabo, Michael D. Tokach, E J. Wiedmann, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

The objectives of this study were to validate the use of flank-to-flank measurement in predicting weight of lactating sows and to determine the accuracy of the developed models in estimating lactation weight change. A total of 70 lactating sows (PIC Line 1050) were used in this study. Flank-to-flank measurement and body weight were measured on each individual sow after farrowing and at weaning. Flank-to-flank measurement and weight of lactating sows was positively correlated (R2 = 0.61; P<.0001) with the following equation: BW0.33, kg = 0.0371 x Flank-to-flank (cm) + 2.161. Weights of sows post-farrowing and at weaning were lower (P<0.03) when predicted with the previous allometric model developed from growing pigs and sows than their actual weights or weights predicted using the lactating sow model. Likewise, absolute residuals for post-farrowing and weaning weights using a previous allometric model developed from growing pigs and gestating sows were greater (P<0.02) than those of the lactating sow model. There were no differences (P<0.89) between the predicted weights using the lactating sow model and their actual weights. There also were no differences between the actual average weight loss (P<0.14) and the predicted loss using the lactating sow model. Using the model previously developed with growing pigs and gestating sows resulted in 15.5 lb (P<0.007) greater than the actual average weight loss. In conclusion, flank-to-flank measurement can be used as a predictor of weight of lactating sows, with the relationship having less accuracy than those used for growing-finishing pigs, gestating sows, and boars. The pig allometric equation cannot be used to estimate weights of lactating sows and lactation weight change. The developed lactating sow model was more appropriate in estimating weights and weight loss at the herd level, but needs to be validated on other sows before use can be recommended.; Swine Day, 2007, Kansas State University, Manhattan, KS, 2007


Evaluation Of A Pcv2 Vaccine On Finishing Pig Growth Performance And Mortality Rate, J Y. Jacela, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2007

Evaluation Of A Pcv2 Vaccine On Finishing Pig Growth Performance And Mortality Rate, J Y. Jacela, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 2,553 pigs (PIC L337 × C22) were used in two experiments in a commercial research barn to evaluate the effects of a commercially available Porcine Circovirus Type 2 (PCV2) vaccine on finisher pig growth rate, feed efficiency, and mortality rate. Pigs in Exp. 1 were vaccinated at 9 and 11 wk of age while pigs in Exp. 2 were vaccinated earlier at 5 and 7 wk of age. In Exp. 1, 1,300 pigs were individually weighed and the vaccine treatment administered 15 and 1 d before being placed on test in the finisher. In Exp ...


Effects Of Adding Beef Tallow To Diets With Sorghum-Based Dried Distillers Grains With Solubles On Growth Performance And Carcass Characteristics In Finishing Pigs, C Feoli, S Issa, Terry L. Gugle, S D. Carter, N A. Cole, Joe D. Hancock Jan 2007

Effects Of Adding Beef Tallow To Diets With Sorghum-Based Dried Distillers Grains With Solubles On Growth Performance And Carcass Characteristics In Finishing Pigs, C Feoli, S Issa, Terry L. Gugle, S D. Carter, N A. Cole, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

A total of 112 barrows (average weight of 158 lb) were used in a 65-d growth assay to determine the effects of adding beef tallow (a source of saturated fat) into diets with high inclusion of dried distillers grains with solubles (DDGS). The pigs were sorted by ancestry and blocked by weight with seven pigs/pen and four pens/treatment. Treatments were a corn-soybean, meal-based control and diets having 40% DDGS (US Energy Partners, Rus-sell, KS) with none, 2.5, and 5% added tallow. Feed and water were consumed on an ad libitum basis until the pigs were slaughtered (average ...


Nutritional Strategies For A Healthy Transition To Lactation: An Update, Barry J. Bradford Jan 2007

Nutritional Strategies For A Healthy Transition To Lactation: An Update, Barry J. Bradford

Kansas Agricultural Experiment Station Research Reports

Reducing cull rates and improving fertility in early lactation has a dramatic effect on the profitability of many dairies. Continuing research on transition cow nutrition has led to the development of an array of nutritional strategies to prevent disorders during the transition period. It is important, however, to realize that some of these strategies have similar modes of action, and as such, their effects are not likely to be additive. Producers should work with their nutritionist and veterinarian to identify the most prevalent transition problems in the herd and review options for preventing those disorders.; Dairy Day, 2007, Kansas State ...


Human Chorionic Gonadotropin And Gnrh Effects On Pregnancy Survival In Pregnant Cows And Resynchronized Pregnancy Rates, B.S. Buttery, M.G. Burns, Jeffrey S. Stevenson Jan 2007

Human Chorionic Gonadotropin And Gnrh Effects On Pregnancy Survival In Pregnant Cows And Resynchronized Pregnancy Rates, B.S. Buttery, M.G. Burns, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Experiments have shown human chorionic gonadotropin (hCG) to be more effective than gondadotropin releasing hormone (GnRH) as a means to ovulate follicles. Experiment 1 determined the effects of replacing the first injection of GnRH (day 7) with hCG or saline in a Resynch-Ovsynch protocol on pregnancy rates in cows subsequently diagnosed not pregnant and pregnancy survival in cows subsequently diagnosed pregnant (day 0). A second study determined the ovulation potential of hCG compared with GnRH and saline (Exp. 2). In Exp. 1, cows in 4 herds were assigned randomly based on lactation number, number of previous AI, and last test-day ...


Times Artifical Insemination Conception Rates In Response To A Progesterone Insert In Lactating Dairy Cows, C.A Martel, B.S. Buttery, M.G. Burns, W.E. Brown Jan 2007

Times Artifical Insemination Conception Rates In Response To A Progesterone Insert In Lactating Dairy Cows, C.A Martel, B.S. Buttery, M.G. Burns, W.E. Brown

Kansas Agricultural Experiment Station Research Reports

Our objective was to determine the effectiveness of exogenous progesterone in the form of an intravaginal insert (controlled internal drug release, CIDR) in conjunction with an ovulation synchronization protocol in lactating dairy cows. Cows received a Presynch protocol (two injections of prostaglandin F2α[PGF2α] 14 days apart) beginning 30 and 36 days in milk, respectively, in two herds. Cows were inseminated after the second Presynch injection when estrus was detected. Remaining cows were treated with the Ovsynch protocol, and alternate cows were assigned randomly to receive a progesterone insert(CIDR). Blood was collected, and body condition scores (BCS) were assigned ...


Impact Of Slope And Pipe Diameter On Flush Plume Design, Joseph P. Harner, John F. Smith, Michael J. Brouk Jan 2007

Impact Of Slope And Pipe Diameter On Flush Plume Design, Joseph P. Harner, John F. Smith, Michael J. Brouk

Kansas Agricultural Experiment Station Research Reports

Manning's equation provides a method to evaluate the flow characteristics of a flush plume system used to move a diluted, sandladen manure stream from a freestall building to sand or solid separation equipment. Evaluation of a 16, 18, and 24-inch plume showed pipe slope is critical in maintaining a 5 feet per second water velocity through the pipe. A 24 inch or larger plume placed on a 0.5% slope is able to obtain water velocity of 5 feet per second if the pump capacity exceeds 3,600 gpm. The flow velocity never reached or exceeded 5 feet per ...


Neonatal Fc Receptor Mrna Expression In Gastrointestinal Tissues From Pigs Fed Meal Or Pelleted Diets With Or Without Irradiated And Non-Irradiated Spray-Dried Animal Plasma, C N. Groesbeck, T E. Burkey, J Ernest Minton, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2007

Neonatal Fc Receptor Mrna Expression In Gastrointestinal Tissues From Pigs Fed Meal Or Pelleted Diets With Or Without Irradiated And Non-Irradiated Spray-Dried Animal Plasma, C N. Groesbeck, T E. Burkey, J Ernest Minton, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

The neonatal Fc receptor (FcRn) participates in intracellular trafficking of IgG and the maintenance of circulating IgG. The relationship between the FcRn and IgG may also augment host defense immunosurveillance. The current studies evaluated FcRn mRNA from intestinal tissues in fetal pigs and FcRn mRNA in weaned pigs fed meal or pelleted diets with or without irradiated or non-irradiated spray-dried animal plasma. In Exp. 1, fetal pigs were obtained at d 55 and 70 of gestation (n = 5 fetuses/gestational age) and total RNA was isolated from intestinal tissues for quantitative real-time PCR (qPCR) to determine mRNA for FcRn. The ...


An Evaluation Of Dextrose, Lactose, And Whey Sources In Phase 2 Starter Diets For Weanling Pigs, J R. Bergstrom, C N. Groesbeck, J M. Benz, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Steven S. Dritz Jan 2007

An Evaluation Of Dextrose, Lactose, And Whey Sources In Phase 2 Starter Diets For Weanling Pigs, J R. Bergstrom, C N. Groesbeck, J M. Benz, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to evaluate the effects of various dextrose, lactose, and whey sources on weanling pig performance. In Exp. 1, a total of 228 pigs (initially 17.1 lb) were used in a 14-d experiment. There were six treatments consisting of a control (corn-soybean meal diet) or the control diet with 7.2% lactose, 7.2% dextrose anhydrous, 7.2% dextrose monohydrate, 10% feed-grade whey, or 10% food-grade whey. Pigs were blocked by weight and randomly allotted to treatment after being fed SEW and Transition diets for the first seven days post-weaning. Overall, ADG and d 14 weight ...


2007 Agricultural Research Southeast Agricultural Research Center, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service Jan 2007

2007 Agricultural Research Southeast Agricultural Research Center, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service

Kansas Agricultural Experiment Station Research Reports

No abstract provided.


Value Of Animal Traceability Systems In Managing A Foot-And-Mouth Disease Outbreak In Southwest Kansas, D.L. Pendell, Ted C. Schroeder Jan 2007

Value Of Animal Traceability Systems In Managing A Foot-And-Mouth Disease Outbreak In Southwest Kansas, D.L. Pendell, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

Concerns regarding management of animal disease and related perceptions about food safety have escalated substantially in recent years. Terrorist attacks of September 2001, discovery of bovine spongiform encephalopathy (BSE) in a dairy cow in December 2003 in Washington, subsequent discoveries of BSEinfected animals in Texas in 2005 and Alabama in 2006, and recent worldwide outbreaks of highly contagious animal diseases (i.e., foot-and-mouth disease [FMD] and Avian influenza) have made apparent the need for animal traceability in U.S. livestock production and marketing. In addition, animal identification systems are rapidly developing throughout the world, effectively increasing international trading standards. One ...


Altered Insemination Timing Improves Pregnancy Rates After A Co-Synch + Cidr Protocol, C. A. Dobbins, D. E. Tenhouse, D. R. Eborn, Sandra K. Johnson, Keith R. Harmoney, Jeffrey S. Stevenson Jan 2007

Altered Insemination Timing Improves Pregnancy Rates After A Co-Synch + Cidr Protocol, C. A. Dobbins, D. E. Tenhouse, D. R. Eborn, Sandra K. Johnson, Keith R. Harmoney, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Our objective was to determine the optimal time to inseminate lactating beef cows after applying the CO-Synch + CIDR protocol [injection of GnRH given seven days before and 48 to 72 hr after an injection of prostaglandin F2α(PGF2α) concurrent with AI, with a controlled internal drug release (CIDR) insert containing progesterone placed intravaginally for seven days between the first GnRH injection and PGF2α.]. Using 605 beef cows located at three Kansas locations, the CO-Synch + CIDR protocol was administered as follows: an injection of GnRH was given concurrent with a vaginally placed, progesterone-releasing CIDR insert, seven days later the insert was ...


Evaluation Of Human Chorionic Gonadotropin As A Replacement For Gnrh In An Ovulation Synchronization Protocol Before Fixed-Time Insemination, M.G. Burns, B.S. Buttrey, D.R. Eborn, J.E. Larson, B.J. Lovaas, G.C. Lamb, Jeffrey S. Stevenson, K. C. Olson Jan 2007

Evaluation Of Human Chorionic Gonadotropin As A Replacement For Gnrh In An Ovulation Synchronization Protocol Before Fixed-Time Insemination, M.G. Burns, B.S. Buttrey, D.R. Eborn, J.E. Larson, B.J. Lovaas, G.C. Lamb, Jeffrey S. Stevenson, K. C. Olson

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to evaluate the difference between gonadotropinreleasing hormone (GnRH) and human chorionic gonadotropin (hCG) given at the beginning of a timed AI protocol and their effects on fertility. In Experiment 1, beef cows (n = 672) at six different locations were assigned randomly to treatments based on age, body condition, and days postpartum. On day −10, cattle were treated with GnRH or hCG and a progesterone-releasing controlled internal drug release (CIDR) insert was placed in the vagina. An injection of PGF2αwas given and CIDR inserts were removed on day −3. Cows were inseminated at one fixed timed at ...