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Animal Sciences

Kansas Agricultural Experiment Station Research Reports

1999

Cattlemen's Day

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Full-Text Articles in Life Sciences

Sarcina Ventriculi As The Potential Cause Of Abomasal Bloat (1999), T.J. Schemm, B.M. Debey, Tiruvoor G. Nagaraja Jan 1999

Sarcina Ventriculi As The Potential Cause Of Abomasal Bloat (1999), T.J. Schemm, B.M. Debey, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Sarcina-like bacteria, possibly Sarcina ventriculi, have been seen upon histopathologic examination of the abomasums of calves that died of abomasal bloat. The ability of the organism to grow at a low pH and produce large amounts of gas suggests that it may be the cause of abomasal bloat.


Incidence Of Premature Browning During Cooking In Ground Beef Purchased At Retail (1999), Melvin C. Hunt, K.M. Killinger, R.E. Campbell Jan 1999

Incidence Of Premature Browning During Cooking In Ground Beef Purchased At Retail (1999), Melvin C. Hunt, K.M. Killinger, R.E. Campbell

Kansas Agricultural Experiment Station Research Reports

We measured the incidence of premature browning during cooking in ground beef that was purchased from retail supermarkets and prepared using common household procedures. Patties made from meat on the outer portion of the packages purchased in the morning had the highest incidence of premature browning (62.5%). Patties from inner portions of packages purchased in the afternoon, refrigerated, and prepared the next morning were more (P<0.05) purple and had the lowest incidence (25%) of premature browning. Overall incidence of premature browning averaged 47%. Because internal cooked color of ground beef is such an unreliable indicator of doneness, temperature measurements should be used to verify that safe endpoint temperatures have been reached.


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

An Efficiency Analysis Of Cattle Backgrounding Operations In Kansas (1999), 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, …


Evaluation Of Springtime Deworming Strategies For Beef Cow/Calf Pairs (1999), M.L. Pfeifer, J.C. Baker, J.T. Seeger, Dale A. Blasi, Glenn E. Newdigger Jr. Jan 1999

Evaluation Of Springtime Deworming Strategies For Beef Cow/Calf Pairs (1999), M.L. Pfeifer, J.C. Baker, J.T. Seeger, Dale A. Blasi, Glenn E. Newdigger Jr.

Kansas Agricultural Experiment Station Research Reports

A field study was conducted at three different locations in south central Kansas to determine the effects of Dectomax® (DECTO) or Ivomec PO® (IVO) compared to no treatment (CONT) on the liveweight gain and reproductive performance of beef cow/calf pairs. Across all three locations, no differences occurred among treatments in cow and calf live weight gain, cow body condition, pregnancy rate, or age of fetus (P>.05). Low egg counts suggest that the parasite load was too low for a response to parasite control.


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

Genetic Associations Of Growth And Lactation Curve Components In Polled Hereford Cattle (1999), 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) …


Effects Of Virginiamycin Or Monensin Plus Tylosin On Ruminal Fermentation Characteristics In Steers Fed Dry-Rolled Corn With Or Without Wet Corn Gluten Feed (1999), 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 (1999), 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.


Effects Of Cooked Molasses Blocks On Intake And Digestion By Steers Fed Brome Hay With Or Without Alfalfa (1999), J.W. Ringler, R.H. Greenwood, Evan C. Titgemeyer, James S. Drouillard Jan 1999

Effects Of Cooked Molasses Blocks On Intake And Digestion By Steers Fed Brome Hay With Or Without Alfalfa (1999), J.W. Ringler, R.H. Greenwood, Evan C. Titgemeyer, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

This study was conducted to determine how cattle fed medium to high quality forages respond to supplementation with cooked molasses blocks. Responses to blocks were measured for steers fed each of three different hays ad libitum: 1) brome containing 8.4% CP and 72% NDF, 2) alfalfa containing 19.2% CP and 52% NDF, and 3) brome fed ad lib and supplemented daily with 5 lb/day of the alfalfa (MIX). Eighteen steers (622 lb) were used for two periods. Six steers received each of the forages, and each steer was supplemented with the block in only one of the two periods. Blocks …


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

Effects Of Half- Vs Three-Quarter-Season Grazing Of Native Grass Pastures (1999), 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 …


Modeled, Multistage Convection Cooking Of Beef Semitendinosus Roasts To Denature Collagen And To Optimize Tenderness (1999), T.H. Powell, Melvin C. Hunt, Michael E. Dikeman Jan 1999

Modeled, Multistage Convection Cooking Of Beef Semitendinosus Roasts To Denature Collagen And To Optimize Tenderness (1999), T.H. Powell, Melvin C. Hunt, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

In order to predict and establish cooking times and temperatures of beef to optimize tenderness and cooked yield, a computer model was developed utilizing heat and mass transfer theories. We cooked beef semitendinosus (eye of round) roasts in a forced-air convection oven using conventional or modeled, multistaged cooking. Conventional cooking was defined as cooking at 325EF to a core endpoint of 150EF. The model method was developed using a computer algorithm that predicted heat and moisture (mass) transfer during a three-stage cooking process that included preheating, holding, and finishing. The model was accurate in predicting actual cooking times and temperatures …


Fixed-Time Insemination Of Suckled Beef Cows. 2. Cosynch And Progesterone (1999), G.C. Lamb, J.A. Cartmill, B.A. Hensley, T.J. Marple, Jeffrey S. Stevenson Jan 1999

Fixed-Time Insemination Of Suckled Beef Cows. 2. Cosynch And Progesterone (1999), G.C. Lamb, J.A. Cartmill, B.A. Hensley, T.J. Marple, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

The Cosynch protocol (GnRH 7 days before and again 48 h after PGF2" with AI at the second GnRH injection) produced pregnancy rates in suckled beef cows that exceeded 50% without heat detection and with only three handlings of all cows. The addition of an intravaginal progesterone insert to the Cosynch protocol improved pregnancy rates in two of the three breeds of cows studied.


Effect Of Level Of Non-Enzymatically Browned Soybean Meal In Limit-Fed, Grain Sorghum Diets For Growing Heifers (1999), R.D. Hunter, James S. Drouillard, Evan C. Titgemeyer Jan 1999

Effect Of Level Of Non-Enzymatically Browned Soybean Meal In Limit-Fed, Grain Sorghum Diets For Growing Heifers (1999), R.D. Hunter, James S. Drouillard, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Grain sorghum-based diets were fed in a limit-feeding trial involving 72 heifers for 100 days. Heifers were fed one of four diets designed to provide 12.5%, 14.9%, 17.3%, and 19.6% crude protein. Protein levels in the diets were altered by providing up to 20% of the diet as non-enzymatically browned soybean meal (Soypassâ) at the expense of dry-rolled grain sorghum. Performance of heifers (gain and feed efficiency) tended (P=.15) to improve linearly as protein concentration of the diets was increased. The greatest improvements were observed at concentrations up to 17.3%.


Nutritional Evaluation Of Corn And Sorghum Crop Residues (1999), R.K. Taylor, Gary L. Kilgore, James J. Higgins, Dale A. Blasi, Stewart R. Duncan Jan 1999

Nutritional Evaluation Of Corn And Sorghum Crop Residues (1999), R.K. Taylor, Gary L. Kilgore, James J. Higgins, Dale A. Blasi, Stewart R. Duncan

Kansas Agricultural Experiment Station Research Reports

Crop residue samples from 22 grazed and nongrazed corn and sorghum residue fields across Kansas were collected every 2 weeks during the 1997/98 winter feeding season to evaluate quality and yield. Corn residue averaged about 2 ½ tons of total dry matter (DM)/acre, with the leaf fraction (attached and unattached) constituting about 60% of that residue. Unattached leaves represented 85% of the total leaf DM. Yield estimates for sorghum residue averaged over 2 tons/ acre. The stem component represented 55 to 60% of the total DM collected, and about 58% of the leaves remained attached to the stem.


Effects Of Starting Weight, Body Condition, And Age On Gain Of Cattle Grazing Native Grass (1999), F.K. Brazle, James J. Higgins Jan 1999

Effects Of Starting Weight, Body Condition, And Age On Gain Of Cattle Grazing Native Grass (1999), F.K. Brazle, James J. Higgins

Kansas Agricultural Experiment Station Research Reports

In 29 trials over 10 years, 6,614 head of cattle (heifers - 11 trials, 2,862 hd; steers - 18 trials, 3,752 hd) were used to determine the effect of starting weight on gain while grazing burned, native-grass pastures. The heifers grazed for an average of 81 days (70 to 93) and steers for an average of 86 days (75 to 99) from April to July. Stocking rate was one animal per 2 acres. The cattle were sorted by starting weight into groups as follows: below 399 lb, 400 to 499 lb, 500 to 599 lb, 600 to 699 lb, and …


Effects Of Repetitive High Energy Pulsed Power (Rhepp) Irradiation On Sensory Attributes, Color, And Shelf Life Of Ground Beef (1999), 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 (1999), 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 …


Lactic Acid, Hot Water, And Microwave Treatment To Reduce Natural Microflora And Pathogens In Vacuum-Packaged Beef (1999), 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 (1999), 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 …


Limiting Amino Acids For Growing Cattle Fed Diets Based On Soybean Hulls (1999), H. Greenwood, C.A. Löest, Evan C. Titgemeyer Jan 1999

Limiting Amino Acids For Growing Cattle Fed Diets Based On Soybean Hulls (1999), H. Greenwood, C.A. Löest, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Ruminally cannulated Holstein steers were used in three nitrogen balance experiments to determine the sequence of limiting amino acids for growing steers fed soybean hull-based diets. The steers in all experiments were fed the same basal diet (73% soybean hulls, 19% alfalfa, DM basis; formulated to minimize rumen undegradable intake protein and thus maximize microbial protein postruminally) and were given the same intraruminal infusions (400 grams per day acetate; to increase energy supply without increasing microbial protein supply). In experiment 1, treatments consisted of abomasal infusions of: water (control, no amino acids); Lmethionine; and a mixture of 10 essential amino …


The Effect Of Decreasing Sorghum Amylose Content On Steam-Flaking Production Characteristics (1999), 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 (1999), 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.


Comparison Of Revalor®-S And Synovex® Plus™ Implants For Heavyweight, Short-Fed, Yearling Steers (1999), 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 (1999), 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.


Dehydrated Paunch And Vegetable By-Products For Growing Beef Cattle (1999), T.A. Nutsch, R.D. Hunter, James S. Drouillard Jan 1999

Dehydrated Paunch And Vegetable By-Products For Growing Beef Cattle (1999), T.A. Nutsch, R.D. Hunter, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Crossbred beef heifers (avg wt 653 lb) were used in a feeding experiment to determine the relative feed value of dried paunch content, two separate vegetable processing by-products, and combinations of by-products with dryrolled corn. Consumption of the vegetable byproduct diets, both of which contained a high percentage of fat, was less than expected. Performance of cattle fed the by-product diets was less than that of cattle fed high-energy diets comprised of corn. However, when combined with corn, the vegetable by-product yielded performance similar to that of corn alone.


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

Selection Response For Feed Conversion And Growth Traits In Polled Hereford Cattle (1999), 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.


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

Vegetative Filters For Improving Environmental Quality (1999), 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 …


Estimates Of Heritabilities And Genetic Correlations In Polled Hereford Cattle Selected For Feed Conversion (1999), J.B. Jr. Glaze, R.R. Schalles Jan 1999

Estimates Of Heritabilities And Genetic Correlations In Polled Hereford Cattle Selected For Feed Conversion (1999), J.B. Jr. Glaze, R.R. Schalles

Kansas Agricultural Experiment Station Research Reports

Performance records of 1459 Polled Hereford cattle were analyzed to estimate heritabilities and genetic correlations of beef cattle traits from birth to maturity. Estimates of heritability (h2) for birth weight (BWT), weaning weight (WWT), yearling weight (YWT), scrotal circumference (SC), yearling height (YHT), mature height (MHT), and mature weight (MWT) were moderate to high, with the exception of WWT (h2 = .14), and ranged from .38 to .72. The traits associated with feed conversion, daily feed intake (INT), average daily gain (ADG), and feed conversion (CONV) had heritabilities of .24, .25, and .14, respectively. Genetic correlations (rg) between the growth …


Effects Of Supplemental Carnitine On Nitrogen Balance And Blood Metabolites Of Growing Beef Steers Fed A High-Protein, Corn-Based Diet (1999), 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 (1999), 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 …


Performance Of Growing Heifers Fed Prairie Hay And Supplemented With Alfalfa And(Or) Cooked Molasses Blocks Of Different Protein Concentrations (1999), D.J. Bindel, R.D. Hunter, T. Nutsch, Evan C. Titgemeyer, James S. Drouillard Jan 1999

Performance Of Growing Heifers Fed Prairie Hay And Supplemented With Alfalfa And(Or) Cooked Molasses Blocks Of Different Protein Concentrations (1999), D.J. Bindel, R.D. Hunter, T. Nutsch, Evan C. Titgemeyer, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Crossbred heifers (683 lb; n = 175; 30 pens) were used to evaluate alfalfa and cooked molasses block supplementation to prairie hay. Treatments were arranged in a 2x3 factorial with the factors being 0 or 5 lbs of alfalfa supplementation, and supplementation with no block or with low or high protein blocks (analyzed to contain 14.4 and 27.5% crude protein, respectively). Heifers had ad libitum access to prairie hay and salt. The experiment was 89 days, with heifers fed blocks for 84 days. During days 5 to 19, heifers had ad libitum access to blocks. Thereafter, access was restricted to …


Wheat Bran And Second Clears As Supplemental Energy Sources For Beef Cows Grazing Winter Pasture (1999), C.G. Farmer, R.C. Cochran, D.D. Simms, J.S. Heldt, C.P. Mathis Jan 1999

Wheat Bran And Second Clears As Supplemental Energy Sources For Beef Cows Grazing Winter Pasture (1999), C.G. Farmer, R.C. Cochran, D.D. Simms, J.S. Heldt, C.P. Mathis

Kansas Agricultural Experiment Station Research Reports

Ninety spring-calving Hereford x Angus cows grazing low-quality, tallgrass-prairie forage during the winter were fed 5 lb/day of a supplement containing combinations of wheat bran (high in digestible fiber) and second clears (high in starch). The by-product combinations accounted for 47 to 49% of each supplement, as follows: 1) 100% wheat bran; 2) 67% wheat bran, 33% second clears; and 3) 33% wheat bran, 67% second clears. Cow performance was measured by changes in body weight and body condition score. The combinations of wheat bran and second clears had no significant effects on cow performance, calf birth weights, calf performance, …


Impacts Of Wheat Milling By-Products In Supplements On The Intake And Digestion Of Steers Consuming Low-Quality Forage (1999), C.G. Farmer, R.C. Cochran, D.D. Simms, J.S. Heldt, C.P. Mathis Jan 1999

Impacts Of Wheat Milling By-Products In Supplements On The Intake And Digestion Of Steers Consuming Low-Quality Forage (1999), C.G. Farmer, R.C. Cochran, D.D. Simms, J.S. Heldt, C.P. Mathis

Kansas Agricultural Experiment Station Research Reports

Sixteen ruminally fistulated steers were used to evaluate the effects of feeding supplements containing combinations of two wheat-milling by-products on forage intake, digestibility, and ruminal characteristics. The by-products accounted for 47 to 49% of each supplement and were as follows: 1) 100% wheat bran; 2) 67% wheat bran, 33% second clears; and 3) 33% wheat bran, 67% second clears. All supplements contained about 30% CP. Compared with unsupplemented controls, forage intake and digestibility were significantly higher for supplemented steers. However, no differences occurred among by-product treatments. In conclusion, if the protein content is adequate, the choice of bran (high digestible …


Effect Of Interseeding Legumes Into Endophyte-Infected Tall Fescue Pastures On Forage Production And Steer Performance (1999), Lyle W. Lomas, Joseph L. Moyer, Gary L. Kilgore Jan 1999

Effect Of Interseeding Legumes Into Endophyte-Infected Tall Fescue Pastures On Forage Production And Steer Performance (1999), Lyle W. Lomas, Joseph L. Moyer, Gary L. Kilgore

Kansas Agricultural Experiment Station Research Reports

A total of 135 steers grazed high-endophyte tall fescue pasture interseeded with either lespedeza, red clover, or ladino clover during 1995, 1996, and 1997. Legume cover, forage dry matter production, grazing steer performance, and subsequent feedlot performance were measured. Legume treatment caused no differences in forage availability. Grazing gains corresponded to the amount of legume coverage present. Results of this study indicate that interseeding high endophyte fescue pastures with ladino clover produced higher stocker gains during the grazing phase than interseeding with lespedeza or red clover. Legume treatment had no effect on subsequent finishing gains.


Effects Of Supplementing Limit-Fed, Wheat Middling-Based Diets With Either Soybean Meal Or Non-Enzymatically Browned Soybean Meal On Growing Steer Performance (1999), C.M. Coetzer, E. Coetzer, R.H. Wessels, James S. Drouillard Jan 1999

Effects Of Supplementing Limit-Fed, Wheat Middling-Based Diets With Either Soybean Meal Or Non-Enzymatically Browned Soybean Meal On Growing Steer Performance (1999), C.M. Coetzer, E. Coetzer, R.H. Wessels, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Seventy two individually fed Angus x Hereford steers (660 lb) were limit-fed, 16.7% CP wheat middling-based diets with 1.9 or 3.8 percentage units of additional CP from either soybean meal (SBM) or non-enzymatically browned soybean meal (NEBSBM). A limitfed, rolled corn-based diet (16.7% CP) also was included. Steers were fed once daily for 70 days at 2.25% of BW. The SBM provided 30% bypass protein, and NEBSBM provided 68%. Average daily gain and efficiency improved linearly with increasing level of NEBSBM (P<.05; ADG=2.482 + .106 (increase in % CP); feed to gain=6.26 - .22(increase in % CP)), but not with increasing levels of SBM. Steers fed the wheat middling diets had lower ADG and efficiency than those fed the corn control diet. These data suggest that bypass protein may be first limiting in highconcentrate, limit-fed growing diets composed predominantly of wheat middlings.


Inhibition Of Heterocyclic Amine Formation In Ground Beef (1999), B.G. Abdulkarim, J. Scott Smith Jan 1999

Inhibition Of Heterocyclic Amine Formation In Ground Beef (1999), B.G. Abdulkarim, J. Scott Smith

Kansas Agricultural Experiment Station Research Reports

he natural antioxidant carnosine, moisture retention by covered cooking, and low temperature cooking were evaluated as ways to inhibit heterocyclic amine (HCA) formation in fried ground beef. Samples were fried at 375EF for 5 min/side, 300EF for 5 min/side, or 250EF for 8 min/side, with surface browning enhanced by applying a caramel solution (Maillose®) near the end of cooking times. Analysis for HCAs was performed on both the crust and the whole patties. Carnosine reduced 4,8-DiMelQx, a major HCA, to below its detection limit (.31 ng/g). HCAs were reduced when the cooking temperature was lowered from 375 to 300 or …


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 …