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- 2012 is known as Cattlemen's Day (27)
- 2012; Kansas Agricultural Experiment Station contribution; no. 12-231-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1065; Beef Cattle Research (27)
- Cattlemen's Day (27)
- Dairy Day (5)
- 2012 (1)
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- 2012; Beef; Bedding material; Insulation; Heat stress (1)
- 2012; Beef; Bolus; Trace minerals; Performance (1)
- 2012; Beef; Corn steep liquor; Intake; Digestion; Sericea lespedeza (1)
- 2012; Beef; Corn steep liquor; Tallgrass prairie hay; Sericea lespedeza; Intake (1)
- 2012; Beef; Crude glycerin; E. coli O157:H7 (1)
- 2012; Beef; Dehorning; Performance; Feedlot (1)
- 2012; Beef; E. coli O157:H7; Coliform concentrations; Feedlot (1)
- 2012; Beef; E. coli O157:H7; Commerical feedlot; SRP Vaccine (1)
- 2012; Beef; E.coli; Feeder cattle; Performance; Health; Carcass characteristics (1)
- 2012; Beef; Feedlot heifers; Lactipro; Performance; Megasphaera elsdenii (1)
- 2012; Beef; Feedlot; Daily gain; Carcass traits; Angus steers (1)
- 2012; Beef; Implant; Health performance; Feedlot performance; Bovine respiratory disease (1)
- 2012; Beef; Ivermectin Pour-on; Feedlot; Anthelmintics (1)
- 2012; Beef; LED light; Shelf life; Fluorescent lighting; Temperature (1)
- 2012; Beef; Lameness; Feedlot; Performance (1)
- 2012; Beef; Linpro; Copper; Feedlot cattle performance; Carcass characteristics; Fatty acid (1)
- 2012; Beef; MGA; Heifers; Oocyte quality; In vitro embryo (1)
- 2012; Beef; Microbials; ProTernative stress formula; Growth; Feed intake; Health (1)
- 2012; Beef; Native tallgrass pastures; Lactating beef cows; Non-lactating beef cows (1)
- 2012; Beef; Necropsy; Feedlot; Feedlot diseases (1)
- 2012; Beef; ProTernative stress formula; Growth performance; Health performance; Microbials (1)
- 2012; Beef; Prostaglandin F2α; Timed A.I.; CO-Synch + CIDR (1)
- 2012; Beef; Protein; Calf performance; Breeding; Intake; Digestion (1)
- 2012; Beef; Quality grade; Temperature; Longissimus lumborum; Tenderness (1)
- 2012; Beef; Steam-generation cooking vs. dry heat convection; Roasts; Connective tissue (1)
Articles 1 - 30 of 79
Full-Text Articles in Life Sciences
Direct-Fed Microbials For Receiving Cattle Ii: Effects Of Proternative Stress Formula Fed In A Dry Suspension On Growth, Feed Intake, And Health Of Receiving Beef Heifers (2012), A.V. Siverson, M.E. Corrigan, James J. Higgins, Dale A. Blasi, Brandon E. Oleen
Direct-Fed Microbials For Receiving Cattle Ii: Effects Of Proternative Stress Formula Fed In A Dry Suspension On Growth, Feed Intake, And Health Of Receiving Beef Heifers (2012), A.V. Siverson, M.E. Corrigan, James J. Higgins, Dale A. Blasi, Brandon E. Oleen
Kansas Agricultural Experiment Station Research Reports
Enhanced preconditioning and nutritional management strategies are needed industrywide as a means of controlling stress and related health problems for freshly arrived stocker calves. Direct-fed microbials are feed additives that stimulate natural, nonpathogenic gut flora in an attempt to stimulate competition against potentially pathogenic gut flora. Previous research involving direct-fed microbials offered in a liquid suspension to lightweight stocker calves produced no effects on growth or health performance. Therefore, the objective of our study was to evaluate the effects of a directfed microbial offered as a dry suspension on feed intake, average daily gain, and morbidity of highly stressed beef …
Spring Burning Of Native Tallgrass Pastures Influences Diet Composition Of Lactating And Non-Lactating Beef Cows (2012), N.A. Aubel, G.J. Eckerle, L.A. Pacheco, M.J. Macek, L.R. Mundell, K. C. Olson, John R. Jaeger, Leigh W. Murray
Spring Burning Of Native Tallgrass Pastures Influences Diet Composition Of Lactating And Non-Lactating Beef Cows (2012), N.A. Aubel, G.J. Eckerle, L.A. Pacheco, M.J. Macek, L.R. Mundell, K. C. Olson, John R. Jaeger, Leigh W. Murray
Kansas Agricultural Experiment Station Research Reports
Diet selection is a dynamic process because of seasonal changes in animal and plant characteristics. Nutrient requirements of grazing animals are a function of physiological state; moreover, plant characteristics may be altered with prescribed spring burning of native rangelands. Prescribed spring burning is used to improve the average quality of pasture forage by removing old growth and making new plant growth more accessible to grazing cattle. Microhistological analysis of fecal material has been a widely used method for quantifying the botanical composition of a grazing animal's diet since it was first described by Baumgartner and Martin in 1939. Little research …
Combined Microwave And Convection Cooking Increases Post-Cooking Temperature Rise Of Beef Biceps Femoris Muscles More Than Convection Cooking (2012), A. Gaschler, Michael E. Dikeman
Combined Microwave And Convection Cooking Increases Post-Cooking Temperature Rise Of Beef Biceps Femoris Muscles More Than Convection Cooking (2012), A. Gaschler, Michael E. Dikeman
Kansas Agricultural Experiment Station Research Reports
Combined microwave and convection cooking has gained popularity in the last 20 years because of more accurate heat control and more efficient use of energy. Combination microwave/convection cooking allows for more rapid cooking, but it does not have the same even heat distribution as convection cooking. Cooking is a critical stage when preparing meat. The main factors to consider during cooking are: temperature on the surface of meat, internal temperature throughout, and the method of heat transfer. Temperature on the surface and method of heat exchange primarily affect surface color and aroma, whereas internal temperature affects protein structure and flavor …
An Evaluation Of Dietary Natural Zeolite Or Humic Acid Substances And Sulfate Water On Nursery Pig Performance (2012), J R. Flohr, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Steven S. Dritz
An Evaluation Of Dietary Natural Zeolite Or Humic Acid Substances And Sulfate Water On Nursery Pig Performance (2012), J R. Flohr, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 350 nursery pigs (PIC 1050 barrows, initially 21 d of age) were used in a 21-d study to determine the effects of high-sulfate water, dietary natural zeolite, and dietary humic substances on growth performance and fecal consistency of nursery pigs. Ten treatments were arranged as a 2 × 5 factorial with 2 water treatments (control or water with 2,000 ppm sodium sulfate) and 5 dietary treatments (control, 1 or 2% zeolite, 1% humic acid substance [HA], or 1% humic and fulvic acid blended substance [HFB]). Water treatments remained the same from d 0 to 21 and all …
K-State Turfgrass Research 2012, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service
K-State Turfgrass Research 2012, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service
Kansas Agricultural Experiment Station Research Reports
Turfgrass Research 2012 contains results of projects conducted by K-State faculty and graduate students. Articles included in this Report of Progress present summaries of research projects that were completed recently or will be completed in the next year or two. Specifically, this year's report presents summaries of research on turf establishment and management, variety evaluations, pest management, and water issues and drought.
Effects Of Increasing Wheat Middlings And Net Energy Formulation On Nursery Pig Growth Performance, J A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Effects Of Increasing Wheat Middlings And Net Energy Formulation On Nursery Pig Growth Performance, J A. De Jong, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 210 pigs (PIC 327 × 1050, initially 15.15 lb) were used in a 29-d trial to evaluate the effects of dietary wheat middlings and NE formulation on nursery pig growth performance. Pens of pigs were balanced by initial BW and randomly allotted to 1 of 5 dietary treatments with 6 replications per treatment. The 5 corn-soybean meal—based diets were: (1) corn-soybean meal (positive control), (2) 10% added midds, (3) 20% added midds, (4) Treatment 2 with 1.4% added soybean oil, and (5) Treatment 3 with 2.8% added soybean oil. Treatments 4 and 5 were balanced on an …
Southwest Research-Extension Center Field Day 2012
Southwest Research-Extension Center Field Day 2012
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.
Effect Of Sampling Method On The Accuracy And Precision Of Estimating The Mean Pig Weight Of The Population (2012), C B. Paulk, G L. Highland, K D. Haydon, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz
Effect Of Sampling Method On The Accuracy And Precision Of Estimating The Mean Pig Weight Of The Population (2012), C B. Paulk, G L. Highland, K D. Haydon, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
Producers have adopted marketing strategies such as topping to help reduce economic losses from weight discounts at the processing plant. Despite adopting these strategies, producers are still missing target weights and incurring discounts. One contributing factor is the error of sampling methods that producers use to estimate the mean weight of the population to determine the optimal time to top pigs. The standard sample size that has been adopted by many producers is 30 pigs. Our objective was to determine the best method for selecting 30 pigs to improve the accuracy and precision of estimating the mean pig weight of …
Effects Of Added Zn In Diets With Ractopamine Hcl On Growth Performance And Carcass Quality Of Finishing Pigs In A Commercial Environment (2012), C B. Paulk, K J. Prusa, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Steven S. Dritz
Effects Of Added Zn In Diets With Ractopamine Hcl On Growth Performance And Carcass Quality Of Finishing Pigs In A Commercial Environment (2012), C B. Paulk, K J. Prusa, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
The experiment was conducted in a commercial facility to determine the effects of added Zn on the performance of finishing pigs fed Ractopamine HCl (RAC; Paylean®; Elanco Animal Health, Greenfield, IN). Pigs were randomly assigned to pens based on gender (14 barrow pens, 11 gilt pens, and 23 mixed-gender pens), with 25 to 28 pigs per pen. Previously, pens of pigs were assigned to treatments containing 0, 7.5, or 15% bakery by-product in a completely randomized design while balancing for initial BW and gender. On d 75, treatments were implemented to determine the effects of adding 50 ppm Zn from …
Effects Of Diet Form And Feeder Adjustment On Growth Performance Of Growing-Finishing Pigs (2012), J E. Nemechek, E Fruge, E Hansen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz
Effects Of Diet Form And Feeder Adjustment On Growth Performance Of Growing-Finishing Pigs (2012), J E. Nemechek, E Fruge, E Hansen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 252 pigs (PIC 327 × 1050, initially 125.2 lb BW) were used in a 69-d trial to determine the effects of diet form and feeder adjustment on growth performance of growing-finishing pigs. Treatments were arranged in a 2 × 3 factorial with the main effects of feeder adjustment and diet form. The 2 feeder adjustments were a narrow feeder adjustment (minimum gap opening of 0.50 in.) and a wide adjustment (minimum gap opening of 1.00 in.). The feeders were adjusted to the minimum gap setting, but the agitation plate could be moved upward to a maximum gap …
The Interactive Effects Of High-Fiber Diets And Ractopamine Hcl On Finishing Pig Growth Performance, Carcass Characteristics, Carcass Fat Quality, And Intestinal Weights (2012), A B. Graham, Terry A. Houser, Michael D. Tokach, Steven S. Dritz, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen
The Interactive Effects Of High-Fiber Diets And Ractopamine Hcl On Finishing Pig Growth Performance, Carcass Characteristics, Carcass Fat Quality, And Intestinal Weights (2012), A B. Graham, Terry A. Houser, Michael D. Tokach, Steven S. Dritz, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
In previous research, feeding pigs high amounts of dried distillers grains with solubles (DDGS) and wheat middlings (midds) has been shown to reduce carcass yield and negatively affect iodine value (IV). The influence of Ractopamine HCl (RAC; Paylean, Elanco Animal Health, Greenfield, IN) on this response is not known; therefore, a total of 575 finishing pigs (PIC 327 × 1050, initially 123 lb) were used in two consecutive 73-d trials to determine the effects of DDGS and midds (high fiber) withdrawal 24 d before harvest in diets with or without RAC on finishing pig growth performance, carcass characteristics, and fat …
The Effects Of Dietary Soybean Hulls, Particle Size, And Diet Form On Nursery Pig Performance (2012), D L. Goehring, B W. James, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz
The Effects Of Dietary Soybean Hulls, Particle Size, And Diet Form On Nursery Pig Performance (2012), D L. Goehring, B W. James, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 1,100 nursery pigs (PIC C-29 × 359, initially 15.0 lb BW) were used in a 42-d growth trial to determine the effects of increasing soybean hulls (10 or 20%) and soybean hull particle size (unground or ground) in nursery pig diets fed in both meal and pelleted forms. The average particle size of the unground and ground soybean hulls were 617 and 398 μ, respectively. Pens of pigs (5 barrows and 5 gilts) were balanced by initial BW and randomly allotted to 1 of 8 treatments with 11 replications per treatment. A 2-phase diet series was used …
Effects Of Av-E Digest And Xfe Liquid Energy On Nursery Pig Performance (2012), W Ying, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Effects Of Av-E Digest And Xfe Liquid Energy On Nursery Pig Performance (2012), W Ying, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 347 nursery pigs (PIC 1050, initially 11.0 lb) were used in a 44-d trial. Pens of pigs were balanced by initial BW and randomly allotted to 1 of 8 dietary treatments with 9 replications per treatment. Pigs were fed in 3 dietary phases (Phase 1, d 0 to 9; Phase 2, d 9 to 23; and Phase 3, d 23 to 44). The 8 dietary treatments included: (1) control diet containing no specialty protein sources; (2) 7.1% PEP2+ in Phase 1 and no specialty protein sources in Phase 2 or Phase 3; (3) 7.1% PEP2+ and 3.75% …
The Interactive Effects Of Easyzyme And Phytase In Diets Containing High-Fiber Co-Products On Growth Performance Of Nursery Pigs (2012), A B. Graham, S Nitikanchana, Jong J.A. De, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
The Interactive Effects Of Easyzyme And Phytase In Diets Containing High-Fiber Co-Products On Growth Performance Of Nursery Pigs (2012), A B. Graham, S Nitikanchana, Jong J.A. De, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
Two experiments were conducted to determine the effects of a dietary non-starch polysaccharide enzyme (Easyzyme, Archer Daniels Midland Co., Decatur, IL) or phytase (Phyzyme, Danisco Animal Nutrition, St. Louis, MO) addition in corn-soybean meal or high-fiber diets on nursery pig growth performance. In Exp. 1, 192 nursery pigs (PIC 327 × 1050, initially 21.8 lb) were allotted to 1 of 4 dietary treatments arranged in a 2 × 2 factorial. Main effects were diet type (corn-soybean meal or corn-soybean meal plus 30% wheat middlings) with or without added dietary enzyme (Easyzyme Mixer 1, 1 lb/ton). Each experiment involved 6 pigs …
An Evaluation Of Supplemental Vitamin D3 On Growth Performance Of Pigs Pre- And Postweaning, Nursery Feed Preference, And Serum 25(Oh)D3 (2012), J R. Flohr, Steven C. Henry, M L. Potter, N S. Shelton, L Greiner, J Conner, C W. Hastad, D Murray, R Cain, K Frerichs, E L. Hansen, E Fruge, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz
An Evaluation Of Supplemental Vitamin D3 On Growth Performance Of Pigs Pre- And Postweaning, Nursery Feed Preference, And Serum 25(Oh)D3 (2012), J R. Flohr, Steven C. Henry, M L. Potter, N S. Shelton, L Greiner, J Conner, C W. Hastad, D Murray, R Cain, K Frerichs, E L. Hansen, E Fruge, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
Three experiments were conducted to evaluate the effects of supplementing different concentrations and sources of vitamin D3 on pig performance, feed preference, and serum 25(OH)D3. In Exp. 1, a total of 398 barrows from 80 litters (PIC 1050, initially 7 d of age) were used in a 38-d study in a 2 × 2 factorial to determine the effects of vitamin D3 supple¬mentation from either a single oral dose or from high levels of vitamin D3 in early nurs¬ery diets on pig performance and serum 25(OH)D3. On d 7 after birth, matched sets of pigs within litters were allotted to …
2012 Agricultural Research Southeast Agricultural Research Center, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service
2012 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.
Reinsemination Intervals After Timed Artificial Insemination Or Estrus-Detected Inseminations (2012), Jeffrey S. Stevenson
Reinsemination Intervals After Timed Artificial Insemination Or Estrus-Detected Inseminations (2012), Jeffrey S. Stevenson
Kansas Agricultural Experiment Station Research Reports
The objective was to quantify the reinsemination intervals of lactating dairy cows that were either inseminated at estrus or received a timed AI (TAI) at first service. Cows in Experiment 1 were enrolled in a TAI program before first AI after calving. Cows detected in estrus after 50 days in milk (DIM) were inseminated, whereas the remainder continued in the TAI program and were inseminated as scheduled. Cows in Experiment 2 also were enrolled in a TAI program and were inseminated accordingly at first service after calving. On day 7 after TAI, cows were assigned randomly to receive either saline …
Direct-Fed Microbials For Receiving Cattle I: Effects Of Proternative Stress Formula Fed In A Liquid Suspension On Growth And Health Performance Of Receiving Beef Heifers (2012), A.V. Siverson, M.E. Corrigan, James J. Higgins, Dale A. Blasi, Brandon E. Oleen
Direct-Fed Microbials For Receiving Cattle I: Effects Of Proternative Stress Formula Fed In A Liquid Suspension On Growth And Health Performance Of Receiving Beef Heifers (2012), A.V. Siverson, M.E. Corrigan, James J. Higgins, Dale A. Blasi, Brandon E. Oleen
Kansas Agricultural Experiment Station Research Reports
Lightweight stocker calves experience variable degrees of physiological stress resulting from weaning, transport, food and water deprivation, diet changes, inclement weather, and infectious diseases. Consequently, preconditioning and specialized nutrition that include direct-fed microbials may become more common in the beef industry as a means of controlling disease and minimizing the effects of stress.
Feeding Crude Glycerin Decreases Fecal Shedding Of E. Coli O157:H7 In Growing Cattle (2012), C. Aperce, James S. Drouillard
Feeding Crude Glycerin Decreases Fecal Shedding Of E. Coli O157:H7 In Growing Cattle (2012), C. Aperce, James S. Drouillard
Kansas Agricultural Experiment Station Research Reports
Crude glycerin is a byproduct of ethanol production and is used as a carbohydrate source for cattle feed. Glycerin levels in previous studies have ranged from 0 to 20% of diet dry matter, and concentrations of 8% or less generally improve feedlot performance. At even low levels of glycerin, however, the activity of cellulolytic bacteria is depressed, ultimately leading to poorer fiber digestion. This observation suggests that glycerin may affect a specific population of bacteria in the gut. Crude glycerin can account for 8 to 10% of the weight of dried distillers grains with solubles, because it is one of …
The Effects Of Corn- Or Sorghum-Based Diets With Or Without Sorghum Dried Distillers Grains With Solubles On Lactating Sow And Litter Performance (2012), K M. Sotak, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz
The Effects Of Corn- Or Sorghum-Based Diets With Or Without Sorghum Dried Distillers Grains With Solubles On Lactating Sow And Litter Performance (2012), K M. Sotak, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 140 sows (PIC 1050) and their litters were used to determine the effects of corn- or sorghum-based diets with or without 20% sorghum dried distillers grains with solubles (DDGS) on lactating sow and litter performance. On d 110 of gestation, sows were allotted to 1 of 4 dietary treatments arranged in a 2 × 2 factorial with main effects of grain source (corn vs. sorghum) and sorghum DDGS (0 vs. 20%; 32.1% CP and 9.2% crude fat as-fed). All diets were formulated to 0.97% standardized ileal digestible lysine but were not balanced for energy. Litters were equalized …
Comparative Efficacy Of Two Ivermectin Pour-On Anthelmintics In Beef Steers In A Commercial Feedyard (2012), A.J. Tarpoff, T. Guichon, Daniel U. Thomson, Benjamin W. Wileman, Christopher D. Reinhardt
Comparative Efficacy Of Two Ivermectin Pour-On Anthelmintics In Beef Steers In A Commercial Feedyard (2012), A.J. Tarpoff, T. Guichon, Daniel U. Thomson, Benjamin W. Wileman, Christopher D. Reinhardt
Kansas Agricultural Experiment Station Research Reports
Generic products generally have a cost advantage for beef producers over brand-name products. Recently, many beef producers have debated whether to utilize generic anthelmintics in cow/calf herds and feeder cattle. If generics are to be justified, the products must be proven to have efficacy similar to the brand-name product. Previous studies have indicated that generic macrocyclic lactones are less effective in controlling gastrointestinal parasites of cattle than the original brand-name products. The objective of this study was to compare the efficacy of Vetrimec (Norbrook Laboratories Limited, Newry, Co. Down, Northern Ireland) pour-on and Ivomec (Merial Animal Health, Duluth, GA) pour-on …
Relationships Between Feedlot Health, Average Daily Gain, And Carcass Traits Of Angus Steers (2012), M.L. Hands, T.T. Marston, L.R. Corah, Christopher D. Reinhardt, Justin W. Waggoner
Relationships Between Feedlot Health, Average Daily Gain, And Carcass Traits Of Angus Steers (2012), M.L. Hands, T.T. Marston, L.R. Corah, Christopher D. Reinhardt, Justin W. Waggoner
Kansas Agricultural Experiment Station Research Reports
Morbidity reduces performance and quality grade, but the effects of morbidity on quality grade independent of its effect on carcass fatness are rarely documented. As feedlot cattle fatten, a greater proportion of their daily carcass gain goes to fat deposition, and greater carcass fat is consistent with greater marbling score. Higher-grading cattle are often assumed to have reduced feedlot performance. Objectives of this research were to document the impacts of various animal and non-animal factors on feedlot average daily gain, health, and carcass traits in Angus steers and to correlate quality and yield grade components of carcass with live performance.
Vaccinating With Srp E. Coli Does Not Affect Feeder Cattle Performance, Health, Or Carcass Characteristics (2012), D.J. Rezac, B.A. Butler, Daniel U. Thomson, Benjamin W. Wileman, Christopher D. Reinhardt
Vaccinating With Srp E. Coli Does Not Affect Feeder Cattle Performance, Health, Or Carcass Characteristics (2012), D.J. Rezac, B.A. Butler, Daniel U. Thomson, Benjamin W. Wileman, Christopher D. Reinhardt
Kansas Agricultural Experiment Station Research Reports
Siderophore-receptor and porin-based (SRP) Escherichia coli vaccine technology functions by starving the E. coli organism via competitive exclusion for proteins that scavenge iron, an essential nutrient for E. coli viability. Vaccination with SRP E. coli technology decreased the prevalence of E. coli O157:H7 in artificially inoculated cattle and in cattle naturally shedding the organism. Examination of the effects that SRP E. coli vaccines exert on performance parameters has yet to be attempted in a commercial setting. The use of SRP E. coli vaccine technology effectively decreases the prevalence of E. coli O157:H7 in feeder cattle and may improve beef safety; …
Time Of Onset, Location, And Duration Of Lameness In Beef Cattle In A Commercial Feedyard (2012), T.M. Green, P.T. Guichon, Daniel U. Thomson, Benjamin W. Wileman, Christopher D. Reinhardt
Time Of Onset, Location, And Duration Of Lameness In Beef Cattle In A Commercial Feedyard (2012), T.M. Green, P.T. Guichon, Daniel U. Thomson, Benjamin W. Wileman, Christopher D. Reinhardt
Kansas Agricultural Experiment Station Research Reports
Bovine lameness presents itself in a variety of forms. A number of predisposing factors have been reported, such as increased amounts of wet feces and mud from high rainfall; limb trauma from rocks, sticks, or handling facilities; inappropriate animal handling; or improper facility design. Trauma causes lameness directly and often provides an avenue for bacterial agents to enter and colonize a wound. Performance of lame cattle is diminished due to impaired ambulation, resulting in decreased feed intake and decreased body weight. The objective of this study was to determine the timing of the onset of lameness in feeder cattle and …
Delaying Implant In High-Risk Calves Has No Benefit For Health Or Feedlot Performance (2012), R.D. Munson, Daniel U. Thomson, Christopher D. Reinhardt
Delaying Implant In High-Risk Calves Has No Benefit For Health Or Feedlot Performance (2012), R.D. Munson, Daniel U. Thomson, Christopher D. Reinhardt
Kansas Agricultural Experiment Station Research Reports
Bovine respiratory disease is the most common and costly disease in the beef industry. Calves affected by bovine respiratory disease have a 53-lb decrease in finished weights and decreased quality grades compared with healthy cattle. Many stressors influence post-arrival health and nutrient intake, including weaning, marketing, transportation, co-mingling, genetics, previous nutrition, and health history. These stressors can negatively affect the immune system at a time when the animal is more likely to be exposed to infectious agents within the bovine respiratory disease complex. Feed intake by stressed calves is low, and low nutrient intake likely increases the negative effects of …
Comparison Of The Effects Of Three Different Dehorning Techniques On Behavior And Performance In Feeder Cattle In A Western Kansas Feedlot (2012), C.D. Neely, C.A. Kerr, David E. Anderson, Daniel U. Thomson, Christopher D. Reinhardt
Comparison Of The Effects Of Three Different Dehorning Techniques On Behavior And Performance In Feeder Cattle In A Western Kansas Feedlot (2012), C.D. Neely, C.A. Kerr, David E. Anderson, Daniel U. Thomson, Christopher D. Reinhardt
Kansas Agricultural Experiment Station Research Reports
Removing the horns of cattle when they arrive at feeding facilities is a common practice to reduce injury to other cattle. Bruising on carcasses of cattle that have been housed in pens containing horned cattle increases noticeably. Horned feeder cattle marketed in Arkansas regional livestock auction barns received average discounts of $3.23/cwt in 2005, giving producers the incentive to dehorn their cattle before marketing. Three common techniques (tipping, dehorning, and banding) are utilized in the field to remove or reduce horn length in beef cattle. Tipping is the practice of removing the tip of the horn such that the diameter …
Effect Of Transportation On E. Coli O157:H7 Prevalence And Coliform Concentrations In Feces Of Feedlot Cattle (2012), C. Aperce, James S. Drouillard
Effect Of Transportation On E. Coli O157:H7 Prevalence And Coliform Concentrations In Feces Of Feedlot Cattle (2012), C. Aperce, James S. Drouillard
Kansas Agricultural Experiment Station Research Reports
Foodborne illness from Escherichia coli O157:H7 is a major concern for the food industry. Contamination of food products can occur at slaughter by contact with hide or feces. Limiting E. coli O157:H7 shedding is important to prevent outbreaks. Previous studies have demonstrated a relationship between stress and levels of pathogens shed in feces. During transport to the slaughterhouse, animals are subjected to large amounts of stress. This stress could increase shedding of E. coli O157:H7 prior to slaughter, and in so doing increase the risk of contamination of beef products by contact with hides or feces. Our objective in this …
Presynchronizing Prostaglandin F2Α Injection Before Timed Artificial Insemination Co-Synch + Cidr Program (2012), Scott L. Hill, Stephanie Leeann Pulley, H.I. Jr. Mellieon, K. C. Olson, John R. Jaeger, Ryan M. Breiner, G.A. Perry, G.C. Lamb, Jeffrey S. Stevenson
Presynchronizing Prostaglandin F2Α Injection Before Timed Artificial Insemination Co-Synch + Cidr Program (2012), Scott L. Hill, Stephanie Leeann Pulley, H.I. Jr. Mellieon, K. C. Olson, John R. Jaeger, Ryan M. Breiner, G.A. Perry, G.C. Lamb, Jeffrey S. Stevenson
Kansas Agricultural Experiment Station Research Reports
Fixed-time artificial insemination is an effective management tool that reduces the labor associated with more conventional programs that require detection of estrus. The 7-day CO-Synch + controlled internal drug release (CIDR) insert protocol has been shown to effectively initiate estrus and ovulation in cycling and non-cycling suckled beef cows, producing pregnancy rates at or greater than 50% in beef cows. The gonadotropin- releasing hormone (GnRH) injection that begins the CO-Synch + CIDR program initiates ovulation in a large proportion of cows, particularly anestrous cows. The CIDR, which releases progesterone intravaginally, prevents short estrous cycles that usually follow the first postpartum …
Mga And Growth Promotants Administered To Beef Feedlot Heifers Have No Effect On Subsequent Oocyte Quality Or In Vitro Embryo Production (2012), N. Miller, David M. Grieger, Karol E. Fike
Mga And Growth Promotants Administered To Beef Feedlot Heifers Have No Effect On Subsequent Oocyte Quality Or In Vitro Embryo Production (2012), N. Miller, David M. Grieger, Karol E. Fike
Kansas Agricultural Experiment Station Research Reports
Beef feedlot heifers have the potential to serve as viable donors of oocytes post-slaughter for in vitro embryo production. Oocyte quality is a critical factor affecting the success of in vitro embryo production and can be influenced by factors such as age and reproductive status, ovarian follicle size, and nutritional status of the donor female. In a conventional feedlot setting, heifers are typically administered steroid-based growth promotants and fed melengestrol acetate (MGA) for suppression of estrus, which increases circulating concentrations of reproductive steroids, particularly estradiol. The effects of these management practices on oocyte quality and numbers are unknown. The purpose …
Increasing Protein Supply To Pregnant Beef Cows When Energy Is Limited Does Not Improve Cow Or Calf Performance (2012), E.A. Bailey, Evan C. Titgemeyer, R.C. Cochran, Timothy J. Jones, K. C. Olson
Increasing Protein Supply To Pregnant Beef Cows When Energy Is Limited Does Not Improve Cow Or Calf Performance (2012), E.A. Bailey, Evan C. Titgemeyer, R.C. Cochran, Timothy J. Jones, K. C. Olson
Kansas Agricultural Experiment Station Research Reports
Pre- and postpartum deficiencies of metabolizable protein have been identified as potentially limiting to productivity of beef cows and calves. Pre-partum supplementation of forage-based diets with ruminally undegraded protein has increased weight gain and breeding performance in prior studies, but the level of ruminally degraded protein fed was not known. Feeding adequate ruminally degraded protein to beef cows maximizes the productivity of microbes in the rumen, so any benefits shown in prior work could have been attributed to increased ruminal fermentation. Our objectives were (1) to determine the value of supplementing ruminally undegraded protein when dietary ruminally degraded protein supply …