Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons™

Open Access. Powered by Scholars. Published by Universities.®

Kansas Agricultural Experiment Station Research Reports

Animal Sciences

1999

Keyword

Articles 1 - 30 of 108

Full-Text Articles in Life Sciences

Roundup 1999 Jan 1999

Roundup 1999

Kansas Agricultural Experiment Station Research Reports

Roundup is the major beef cattle education and outreach event sponsored by the Agricultural Research Center-Hays. The purpose is to communicate timely, applicable research information to producers and extension personnel. The research program of the Agricultural Research Center-Hays is dedicated to serving the people of Kansas by developing new knowledge and technology to stabilize and sustain long-term production of food and fiber in a manner consistent with conservation of natural resources, protection of the environment, and assurance of food safety. Primary emphasis is on production efficiency through optimization of inputs in order to increase profit margins for producers in the …

Go to article

Effects Of Repetitive High Energy Pulsed Power (Rhepp) Irradiation On Sensory Attributes, Color, And Shelf Life Of Ground Beef, K.A. Hachmeister, Donald H. Kropf, V.S. Gill, R.J. Kaye, Melvin C. Hunt, James L. Marsden, Curtis L. Kastner Jan 1999

Effects Of Repetitive High Energy Pulsed Power (Rhepp) Irradiation On Sensory Attributes, Color, And Shelf Life Of Ground Beef, K.A. Hachmeister, Donald H. Kropf, V.S. Gill, R.J. Kaye, Melvin C. Hunt, James L. Marsden, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

We investigated the effects of packaging atmosphere and three levels of irradiation dose (Repetitive High Energy Pulsed Power, - RHEPP) on microbial populations, vitamin retention, and display color attributes of ground beef patties stored either chilled or frozen. Beef knuckles and beef fat were coarsely ground, sampled and analyzed to achieve 20% fat, mixed, ground through a 1/8 in. plate, and processed into 1/4-lb patties, which were sealed either aerobically or nitrogen-flushed. Patties were not irradiated or irradiated to 1.5 or 3.0 kGy, chilled, and displayed at 37 ± 4EF for 6 days under 150 foot-candles of Deluxe Warm White …

Go to article

Antibacterial Effectiveness Of A Second Generation Steam Pasteurization™ System For Beef Carcass Decontamination, A. Truax, S. Sporing, S.A. Rueger, M. Schafer, L.K. Bohra, L. Harris, Randall K. Phebus, Deanna D. Retzlaff Jan 1999

Antibacterial Effectiveness Of A Second Generation Steam Pasteurization™ System For Beef Carcass Decontamination, A. Truax, S. Sporing, S.A. Rueger, M. Schafer, L.K. Bohra, L. Harris, Randall K. Phebus, Deanna D. Retzlaff

Kansas Agricultural Experiment Station Research Reports

The original commercial Steam Pasteurization ™ System (SPS 400) involved a sealable moving car by which carcass sides were carried through the steam chamber at standard line speeds. A second generation "static chamber" system (SPS 400-SC) eliminates the mechanical moving car and has been installed in a large beef slaughter facility. We collected data to verify SPS 400-SC's effectiveness at chamber temperatures from 185 to 205EF in a batch process mode (only test carcasses passing through the unit at variable intervals to facilitate collection of research samples) and at 190EF with the system running continuously. Tissue samples were obtained from …

Go to article

Lactic Acid, Hot Water, And Microwave Treatment To Reduce Natural Microflora And Pathogens In Vacuum-Packaged Beef, D.H. Kang, B.A. Crozier-Dodson, G. Jiang, X. Shi, Daniel Y.C. Fung Jan 1999

Lactic Acid, Hot Water, And Microwave Treatment To Reduce Natural Microflora And Pathogens In Vacuum-Packaged Beef, D.H. Kang, B.A. Crozier-Dodson, G. Jiang, X. Shi, Daniel Y.C. Fung

Kansas Agricultural Experiment Station Research Reports

Combined lactic acid (2%), hot water, and microwave treatments were used to reduce natural microflora and the pathogens Escherichia coli O157:H7, Salmonella typhimurium, and Listeria monocytogenes in vacuum-packaged beef. Hot water at 158EF followed by vacuum packaging and 5 sec. of microwave were acceptable for microbial reduction. Dipping inoculated meat for 20 sec. into 2% room temperature lactic acid prior to that treatment at 158EF reduced E. coli O157:H7 by 1.05 log CFU/cm2, S. typhimurium by .7 log CFU/cm2, and L. monocytogenes by .85 log CFU/cm2 (CFU is colony forming unit). One log equals a 90% reduction, and 2 log …

Go to article

Effects Of Post-Bleeding Vascular Infusion Of Cattle With A Solution Of Sugars, Sodium Chloride, And Phosphates Or With Calcium Chloride On Carcass Traits And Meat Palatability, T.E. Dobbels, Melvin C. Hunt, J.J. Schoenbeck, Michael E. Dikeman Jan 1999

Effects Of Post-Bleeding Vascular Infusion Of Cattle With A Solution Of Sugars, Sodium Chloride, And Phosphates Or With Calcium Chloride On Carcass Traits And Meat Palatability, T.E. Dobbels, Melvin C. Hunt, J.J. Schoenbeck, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

We evaluated the effects of postexsanguination vascular infusion at 10% of live weight of a solution of sugars, sodium chloride, and phosphates (MPSC) or of calcium chloride on carcass traits and meat palatability. Dressing percentages were 4% higher for carcasses infused with the MPSC and 2.5 % higher for carcasses infused with calcium chloride than for controls. USDA quality grades were not affected by vascular infusion. Infusion with calcium chloride caused undesirable intermuscular fluid accumulation and two-toned color in several muscles. It also caused higher Warner- Bratzler shear values and lower trained sensory panel scores (P<.05). MPSC infusion may offer financial benefits by increasing dressing percent, but it has no other major effects.

Go to article

Color Stability Of Steaks From Carcasses Vascularly Infused Immediately After Exsanguination, Melvin C. Hunt, J.J. Schoenbeck, T.E. Dobbels, Michael E. Dikeman, Sally L. Stroda Jan 1999

Color Stability Of Steaks From Carcasses Vascularly Infused Immediately After Exsanguination, Melvin C. Hunt, J.J. Schoenbeck, T.E. Dobbels, Michael E. Dikeman, Sally L. Stroda

Kansas Agricultural Experiment Station Research Reports

Hereford x Angus carcasses were infused with a solution of either sugar/phosphate or calcium chloride immediately after exsanguination to determine effects on color stability during retail display. A calcium chloride solution darkened the cuts and reduced color stability. A sugar/phosphate blend made steaks appear lighter red (more desirable), and their color stability was equal to that of the noninfused control.

Go to article

Effects Of Post-Bleeding Vascular Infusion Of Cattle With A Solution Of Sugars, Sodium Chloride, And Phosphates With Or Without Vitamin C On Carcass Traits, Warner-Bratzler Shear Forces, And Patalability, E.J. Yancey, T.E. Dobbels, E. Katasanidis, Michael E. Dikeman, Edgar Chambers Iv Jan 1999

Effects Of Post-Bleeding Vascular Infusion Of Cattle With A Solution Of Sugars, Sodium Chloride, And Phosphates With Or Without Vitamin C On Carcass Traits, Warner-Bratzler Shear Forces, And Patalability, E.J. Yancey, T.E. Dobbels, E. Katasanidis, Michael E. Dikeman, Edgar Chambers Iv

Kansas Agricultural Experiment Station Research Reports

Two groups of grain-finished, crossbred Charolais steers were utilized to determine the effects of post-bleeding vascular infusion on dressing percentages, USDA quality and yield grades, Warner-Bratzler shear force values, and flavor. Nine steers from one group of 18 were infused with a solution containing sugars, sodium chloride, and a phosphate blend (MPSC), and the remaining nine steers served as noninfused controls. Nine in the second slaughter group of 18 were MPSC-infused, and nine were infused with the MPSC solution plus 500 ppm vitamin C (MPSC+C). The MPSC cattle had a 2.9% higher mean dressing percentage (P<.05) than control cattle. Vascular infusion had no effect (P>.05) on Warner-Bratzler shear …

Go to article

Evaluations Of Beef Tenderness By Warner-Bratzler Shear Force, A Descriptive-Texture Profile Sensory Panel, And A Descriptive Attribute Sensory Panel, M.M. Otremba, Edgar Chambers Iv, Michael E. Dikeman, George A. Milliken, Sally L. Stroda, John A. Unruh Jan 1999

Evaluations Of Beef Tenderness By Warner-Bratzler Shear Force, A Descriptive-Texture Profile Sensory Panel, And A Descriptive Attribute Sensory Panel, M.M. Otremba, Edgar Chambers Iv, Michael E. Dikeman, George A. Milliken, Sally L. Stroda, John A. Unruh

Kansas Agricultural Experiment Station Research Reports

his study examined interrelationships among Warner-Bratzler shear force (WBSF), evaluation by a highly trained descriptive-texture- profile (DTP) sensory panel, and evaluation by a trained descriptive attribute (DA) sensory panel as affected by muscle fiber orientation of samples. Eighteen longissimus lumborum and 18 semitendinosus muscles from Choice and Select carcasses were cut into 1- inch steaks and cooked to 150EF. Cores were obtained by two methods (parallel to the muscle fiber orientation and perpendicular to the cut steak surface) for WBSF determinations. Cubes ½ x ½ x 1 in. were presented to the DTP and DA sensory panels. Cores taken parallel …

Go to article

Runoff Compliance For Kansas Cattle Feedlots, James P. Murphy, Joseph P. Harner Jan 1999

Runoff Compliance For Kansas Cattle Feedlots, James P. Murphy, Joseph P. Harner

Kansas Agricultural Experiment Station Research Reports

As the demand grows for cleaner water, feedlots will need to reduce and control the nutrient and sediment loading of runoff. Existing confined feedlots will need to evaluate their runoff potential. Costs of controlling the runoff must be weighed against new lot construction on an alternate location. New feedlot facilities will need to address current regulations and be designed for compliance with future regulations.

Go to article

Sources Of Variability In Fed-Cattle Grid Pricing, J.L. Graff, Ted C. Schroeder Jan 1999

Sources Of Variability In Fed-Cattle Grid Pricing, J.L. Graff, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

Price variability among carcasses increases with a change from live-weight to dressedweight to grid pricing. Grid pricing has the largest price variability, because the price for each carcass is influenced by all of the components of the grid, rather than all cattle selling for the same live or dressed price. Therefore, producers selling on a grid need to have knowledge about the expected carcass merit of their cattle. We used data on 11,703 head of cattle to determine which grid pricing components influence price variability the most and to measure how much price variability increases from grid pricing, relative to …

Go to article

An Efficiency Analysis Of Cattle Backgrounding Operations In Kansas, L. Gow, Michael R. Langemeier Jan 1999

An Efficiency Analysis Of Cattle Backgrounding Operations In Kansas, L. Gow, Michael R. Langemeier

Kansas Agricultural Experiment Station Research Reports

As the structure of the beef industry changes, understanding its efficiency, cost, and profitability relationships is important. This study evaluates the relative efficiency of a sample of Kansas farm backgrounding and backgrounding/finishing operations for 1995- 1997. No commercial feeders were included. On average, backgrounding operations were 71% technically efficient, 68% allocatively efficient, 83% scale efficient, and 39% overall efficient. The results suggest that Kansas backgrounding operations could reduce their cost by 61%, if all farms were producing at the lowest possible cost. On average, backgrounding/finishing operations were 84% technically efficient, 79% allocatively efficient, 90% scale efficient, and 60% overall efficient, …

Go to article

Vegetative Filters For Improving Environmental Quality, P.K. Kalita, Joseph P. Harner Jan 1999

Vegetative Filters For Improving Environmental Quality, P.K. Kalita, Joseph P. Harner

Kansas Agricultural Experiment Station Research Reports

Nonpoint source pollution from agricultural areas has been recognized as a major contributor of surface and groundwater quality problems. Sediments, pesticide and nutrient runoffs, and microbial pathogens from farmlands may severely affect quality of water resources. A majority of Kansas river basins contains high concentrations of fecal coliforms, nitrogen, phosphorus, and sediments. The use of vegetative filters strips (VFS) has been identified as one of the best management practices to reduce pollutant concentrations in surface water sources. Vegetation planted between pollutant sources and receiving water accomplishes this by filtration, deposition, infiltration, adsorption, volatilization, plant uptake, and decomposition processes. The effectiveness …

Go to article

Genetic Associations Of Growth And Lactation Curve Components In Polled Hereford Cattle, J.B. Jr. Glaze, R.R. Schalles Jan 1999

Genetic Associations Of Growth And Lactation Curve Components In Polled Hereford Cattle, J.B. Jr. Glaze, R.R. Schalles

Kansas Agricultural Experiment Station Research Reports

Weight and milk production records of Polled Hereford cows born from 1967 to 1979 were used to fit growth and lactation curves. A multiple-trait, derivative-free, restricted maximum likelihood (MTDFREML) procedure, utilizing a full animal model, was used to estimate variances and covariances for the components of the growth and lactation curves. For the growth curve, W=A+B(1-e-kt) components A, B, and k each had moderate to high heritabilities ranging from .35 to .72. The genetic correlation between growth curve components A and B was positive (.42), whereas the genetic correlations between A and K (-.34) and between B and K (-.74) …

Go to article

Selection Response For Feed Conversion And Growth Traits In Polled Hereford Cattle, J.B. Jr. Glaze, R.R. Schalles Jan 1999

Selection Response For Feed Conversion And Growth Traits In Polled Hereford Cattle, J.B. Jr. Glaze, R.R. Schalles

Kansas Agricultural Experiment Station Research Reports

Direct and correlated responses to selection for improved feed conversion were estimated from performance records of 1459 Polled Hereford cattle born from the spring of 1967 through the spring of 1979. Data were analyzed using a multiple-trait, derivative-free, restricted maximum likelihood (MTDFREML) procedure. A full animal model was used to calculate genetic and phenotypic (co)variances. The withinherd breeding values that resulted from the solution of the mixed model equations were regressed on year to create selection response curves. Feed conversion was shown to respond favorably to direct selection, with feed/gain changing -.005 per year.

Go to article

Effects Of Virginiamycin Or Monensin Plus Tylosin On Ruminal Fermentation Characteristics In Steers Fed Dry-Rolled Corn With Or Without Wet Corn Gluten Feed, S.E. Ives, A. Del Barrio, D.J. Bindel, Evan C. Titgemeyer, Tiruvoor G. Nagaraja Jan 1999

Effects Of Virginiamycin Or Monensin Plus Tylosin On Ruminal Fermentation Characteristics In Steers Fed Dry-Rolled Corn With Or Without Wet Corn Gluten Feed, S.E. Ives, A. Del Barrio, D.J. Bindel, Evan C. Titgemeyer, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

A study was conducted to evaluate effects of virginiamycin and monensin plus tylosin on ruminal fermentation characteristics in steers fed dry rolled corn-based finishing diets with or without wet corn gluten feed. Ruminal pH was higher, concentrations of volatile fatty acids were lower, and ciliated protozoal numbers were higher in steers fed diets with wet corn gluten feed. Including virginiamycin or monensin plus tylosin had few effects on the ruminal fermentation characteristics we measured. Including wet corn gluten feed appeared to stabilize the ruminal fermentation.

Go to article

The Effect Of Decreasing Sorghum Amylose Content On Steam-Flaking Production Characteristics, J.R. Froetschner, Joe D. Hancock, Keith C. Behnke, Leland J. Mckinney Jan 1999

The Effect Of Decreasing Sorghum Amylose Content On Steam-Flaking Production Characteristics, J.R. Froetschner, Joe D. Hancock, Keith C. Behnke, Leland J. Mckinney

Kansas Agricultural Experiment Station Research Reports

This experiment demonstrated no advantage in using a waxy sorghum over a conventional sorghum for steam flaking. Even though the waxy variety had a slight increase in in-vitro gas production after flaking, the benefit was outweighed by the significant increase in energy requirement and significant decrease in production rate during processing.

Go to article

Effects Of Supplemental Carnitine On Nitrogen Balance And Blood Metabolites Of Growing Beef Steers Fed A High-Protein, Corn-Based Diet, R.H. Greenwood, Gerald L. Stokka, Evan C. Titgemeyer Jan 1999

Effects Of Supplemental Carnitine On Nitrogen Balance And Blood Metabolites Of Growing Beef Steers Fed A High-Protein, Corn-Based Diet, R.H. Greenwood, Gerald L. Stokka, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Seven Angus-cross steers (475 lbs initial body weight) were used in a 7 x 4 incomplete Latin square experiment to evaluate the effects of supplemental L-carnitine on nitrogen balance and blood metabolites. Steers were fed the same high-protein, corn-based diet near ad libitum intake. Treatments were control and .25, .5, 1.0, 1.5, 2.0, and 3.0 grams/day of supplemental carnitine. Experimental periods were 18 days with 13 days for adaptation and 5 days for collection of feces and urine. Blood was collected at feeding and 3 and 6 hours after feeding on day 18 of each period. Supplementing steers with carnitine …

Go to article

Comparison Of Revalor®-S And Synovex® Plus™ Implants For Heavyweight, Short-Fed, Yearling Steers, Gerry L. Kuhl, A.S. Flake, James S. Drouillard Jan 1999

Comparison Of Revalor®-S And Synovex® Plus™ Implants For Heavyweight, Short-Fed, Yearling Steers, Gerry L. Kuhl, A.S. Flake, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

One hundred four Hereford x Angus steers averaging 897 lb were implanted with Revalor®- S or Synovex® Plus™ and fed a high concentrate diet for 82 days. Feed efficiencies and daily gains were not different between the two implant groups. Although most carcass characteristics were similar, Revalor-S tended (P<.09) to yield a higher percentage of carcasses that graded USDA Choice or better.

Go to article

Implant Quality Assurance: Detection Of Abscessed Implants And Their Effect On Feedlot Performance Of Beef Heifers, M.F. Spire, J.M. Sargeant, Dale A. Blasi, James S. Drouillard Jan 1999

Implant Quality Assurance: Detection Of Abscessed Implants And Their Effect On Feedlot Performance Of Beef Heifers, M.F. Spire, J.M. Sargeant, Dale A. Blasi, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Infrared thermography (IRT) can be used successfully to differentiate abscessed implanted ears from nonimplanted ears 8 days postimplanting. Abscessed ears averaged 5.7EF warmer than nonimplanted ears when ambient temperature was 60 to 63EF. Average daily gain and feed efficiency were reduced 8.9% and 8.3%, respectively, over the 91-day feeding period for cattle with abscessed implants compared to cattle with normal implants. Dry matter intake was not affected by an abscessed implant and averaged nearly 18.0 lb/head/day for both treatment groups. Abscessed implants reduced economic return by $17.70 per head.

Go to article

Effect Of Ruminal Versus Postruminal Administration Of Degradable Protein On Utilization Of Low-Quality Forage By Beef Steers, C.A. Bandyk, R.C. Cochran, T.A. Wickersham, C.G. Farmer, Evan C. Titgemeyer Jan 1999

Effect Of Ruminal Versus Postruminal Administration Of Degradable Protein On Utilization Of Low-Quality Forage By Beef Steers, C.A. Bandyk, R.C. Cochran, T.A. Wickersham, C.G. Farmer, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Twelve ruminally fistulated steers were used to evaluate the effects of supplying a highly degradable protein source (casein) both ruminally and postruminally on intake and digestibility of low-quality native hay. Both protein supplementations substantially increased voluntary intake, organic matter digestion, rate of passage, ruminal ammonia, and blood urea concentrations, but intakes were considerably greater when protein was given ruminally as opposed to postruminally.

Go to article

Effect Of Date Of Harvest On The Yield And Nutritional Quality Of Native Grass Hay, J.C. Baker, S.R. Tonn, S.I. Paisley, David E. Kehler, Dale A. Blasi Jan 1999

Effect Of Date Of Harvest On The Yield And Nutritional Quality Of Native Grass Hay, J.C. Baker, S.R. Tonn, S.I. Paisley, David E. Kehler, Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

Native grass hay meadows in three Kansas Flint Hills counties were sampled at 2-week intervals during the 1997 and 1998 growing seasons to determine the effect of harvest date on forage quality and dry matter (DM) yield. Each sample was weighed and analyzed for crude protein (CP), acid detergent fiber (ADF), and phosphorus (PHOS). The CP and PHOS contents declined, whereas ADF and DM yield increased as harvest date progressed. Although CP, ADF and DM yield were related highly to harvest date, the association for PHOS content was only moderate. Because harvest date of native grass hay can significantly influence …

Go to article

Effects Of Half- Vs Three-Quarter-Season Grazing Of Native Grass Pastures, F.K. Brazle, Gary L. Kilgore, M.R. Fausett Jan 1999

Effects Of Half- Vs Three-Quarter-Season Grazing Of Native Grass Pastures, F.K. Brazle, Gary L. Kilgore, M.R. Fausett

Kansas Agricultural Experiment Station Research Reports

Mixed-breed steers (563 lbs) grazed burned, native-grass pastures (1990 to 1998). Steers were allotted randomly to graze native grass pastures for either 1/2 season (1/2) from April to July 15 (81 days, at 1 steer to 2 acres) or for 3/4 season (3/4) from April to August 15 (112 days, at 1 steer per 3 acres). The grass composition was measured in the first, fourth, and eighth years of the study. The economics of steers grazing the two systems were determined by calf and feeder cattle prices at Dodge City adjusted to southeast Kansas. The steers grazing 1/2 gained more …

Go to article

Effects Of Spray-Dried Animal Plasma Source On Weanling Pig Performance (1999), M U. Steidinger, P R. O'Quinn, J C. Woodworth, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz Jan 1999

Effects Of Spray-Dried Animal Plasma Source On Weanling Pig Performance (1999), M U. Steidinger, P R. O'Quinn, J C. Woodworth, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Three studies were conducted to evaluate the effects of different spray-dried animal plasma (SDAP) sources on weanling pig performance. For this study, different sources of SDAP were obtained from each of the four largest marketers. In each experiment, a different lot of each of the four plasma sources was used. Pigs were fed either a control diet or one of four diets containing different plasma sources added at 5.0 % of the total diet. The results of these experiments suggest that larger differences occur between lots or batches of SDAP then between sources of SDAP, when weanling pig performance is …

Go to article

Influence Of Dietary Supplementation Of Modified Tall Oil, Chromium Nicotinate, And L-Carnitine On Pork Chop Display Color Stability, Warner-Bratzler Shear, And Sensory Panel Traits (1999), A T. Waylan, P R. O'Quinn, J C. Woodworth, K Q. Owen, John A. Unruh, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach Jan 1999

Influence Of Dietary Supplementation Of Modified Tall Oil, Chromium Nicotinate, And L-Carnitine On Pork Chop Display Color Stability, Warner-Bratzler Shear, And Sensory Panel Traits (1999), A T. Waylan, P R. O'Quinn, J C. Woodworth, K Q. Owen, John A. Unruh, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Eighty crossbred (PIC) gilts were used to determine the influence of feeding modified tall oil (MTO, 0 or .5% of diet), chromium nicotinate (0 or 50 ppb), and L-carnitine (0 or 50 ppm) on display color stability, Warner-Bratzler shear, and sensory panel traits of pork chops. Dietary additions of MTO, chromium nicotinate, and L-camitine to growing and finishing swine diets had minimal effects on quality characteristics and display color stability of pork chops. Therefore, producers probably can take advantage of any production or carcass cutability improvement from these feed supplements without affecting muscle quality of pork chops.; Swine Day, Manhattan, …

Go to article

Effects Of Increasing Lysine:Calorie Ratio And Dietary Fat Addition On Growth Performance And Carcass Characteristics Of Growing-Finishing Barrows (1999), M De La Llata, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 1999

Effects Of Increasing Lysine:Calorie Ratio And Dietary Fat Addition On Growth Performance And Carcass Characteristics Of Growing-Finishing Barrows (1999), M De La Llata, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,200 growing-finishing barrows was used to determine the effects of increasing lysine:calorie ratio and dietary fat addition. Dietary treatments were arranged in a 2 x 4 factorial with two levels of fat (0 and 6%) and four lysine:calorie ratios in each of the four phases. The appropriate lysine: calorie ratios to maximize performance were: 3.01,2.25 to 2.50, 1.78 to 1.98, and 1.42 to 1.62 from 75 to 130, 130 to 175, 175 to 220, and 220 to 260 lb, respectively. These ratios equate to approximate total lysine levels of 1.00, .80, 65, and .53%, respectively, in corn-soybean …

Go to article

Effects Of Pelleting And Pellet Conditioning Temperatures On Weanling Pig Performance (1999), M U. Steidinger, Michael D. Tokach, P R. O'Quinn, J C. Woodworth, Leland J. Mckinney, B S. Borg, J M. Campbell, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 1999

Effects Of Pelleting And Pellet Conditioning Temperatures On Weanling Pig Performance (1999), M U. Steidinger, Michael D. Tokach, P R. O'Quinn, J C. Woodworth, Leland J. Mckinney, B S. Borg, J M. Campbell, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to evaluate" the effects of pelleting and pellet conditioning temperature of diets containing 5% spray-dried animal plasma (SDAP) on weanling pig growth performance. In Exp. 1, conditioning temperatures evaluated were 140, 150, 160, and 170°F. In Exp. 2, pellet conditioning temperatures were 140, 155, 170, 185, and 200°F. The results suggest that pellet conditioning temperatures above 170°F decrease weanling pig performance from d 0 to 7 after weaning. Pellet conditioning temperature should not exceed 170OF (exit temperature of 180°F) for nursery diets containing 5% SDAP.; Swine Day, Manhattan, KS, November 18, 1999

Go to article

Effects Of Modified Tall Oil On Growth And Body Composition In Adult Ovariectomized Rats (1999), P R. O'Quinn, S I. Koo, S K. Noh, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach Jan 1999

Effects Of Modified Tall Oil On Growth And Body Composition In Adult Ovariectomized Rats (1999), P R. O'Quinn, S I. Koo, S K. Noh, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

A trial was conducted to evaluate the effects of modified tall oil (MTO) on growth and body composition of adult ovariectomized rats. This trial was targeted as a model for postmenopausal women; thus, only data applicable to swine production are presented herein. Feeding MTO decreased adiposity, increased concentrations of certain lipids in tissues, increased vitamin E (octocopherol) levels in the adipose, and increased actual lean content. These data lend support to the carcass leanness and meat quality improvements routinely seen in swine from feeding MTO.; Swine Day, Manhattan, KS, November 18, 1999

Go to article

The Interactive Effects Of Zinc Source And Feed Grade Medication On Weanling Pig Growth Performance (1999), J C. Woodworth, J T. Sawyer, K A. Maxwell, T M. Fakler, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband Jan 1999

The Interactive Effects Of Zinc Source And Feed Grade Medication On Weanling Pig Growth Performance (1999), J C. Woodworth, J T. Sawyer, K A. Maxwell, T M. Fakler, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

Two hundred eight-eight weanling pigs (initially 12.31bs and 18 d of age) were used in a 27-d growth assay to determine the interactive effects of Zn source and feed grade medication on growth performance. Experimental treatments were arranged in a 2 x 3 factorial with main effects of medication (none or 50 g/ton of carbadox) and Zn source (none, 250 ppm of Zn from a Zn amino acid complex, or 3,000 ppm of Zn from ZnO). The results suggest that dietary Zn improved growth performance primarily from d °to 14 and feed grade medication improved growth performance from d 14 …

Go to article

Effects Of Different Zinc Oxide Sources On Weanling Pig Growth Performance (1999), J C. Woodworth, J T. Sawyer, C A. Maxwell, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband Jan 1999

Effects Of Different Zinc Oxide Sources On Weanling Pig Growth Performance (1999), J C. Woodworth, J T. Sawyer, C A. Maxwell, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 192 pigs (initially 13.61b and 18 d of age) were used in a 27-d growth assay to determine the effects of different ZnO sources on weanling pig growth performance. The four experimental treatments consisted of a control diet or three diets containing Zn from ZnO from one of three different sources. For the entire trial, no differences occurred in growth performance of pigs fed the different ZnO sources; however, all sources increased ADG and ADFI compared to pigs fed the control diet. Economics and ingredient availability should dictate which ZnO source to use in weanling pig diets …

Go to article

A New Treatment For Neonatal Scours (1999), R L. Sedlacek, E K. O'Donnell, A K. Singh, R J. Bridges, Metre D.C. Van, Bruce D. Schultz Jan 1999

A New Treatment For Neonatal Scours (1999), R L. Sedlacek, E K. O'Donnell, A K. Singh, R J. Bridges, Metre D.C. Van, Bruce D. Schultz

Kansas Agricultural Experiment Station Research Reports

Scours account for significant losses to the US swine industry every year. A common treatment for scours is the administration of broad-spectrum antibiotics, a practice with increasing unpopularity in the eyes of consumers. Currently, no treatment is available to reduce or eliminate the fluid losses associated with scours that is both inexpensive and easy to use. In the present study, a variety of prospective drugs were used to determine if a single compound might inhibit the effects of bacterial toxins in a laboratory setting. The results indicate that a new class of drugs, which we call DASUs, likely will prove …

Go to article

Next Last