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

Life Sciences Commons

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

Journal

1997

Cattlemen's Day

Articles 1 - 30 of 38

Full-Text Articles in Life Sciences

Determinants Of Prices For Purebred Beef Bulls, D.D. Simms, R.P. Jr. Bolze, J. Geske, Kevin C. Dhuyvetter, Ted C. Schroeder Jan 1997

Determinants Of Prices For Purebred Beef Bulls, D.D. Simms, R.P. Jr. Bolze, J. Geske, Kevin C. Dhuyvetter, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

Animal characteristics and sale price data for 1651 bulls sold at 26 Kansas purebred beef sales during 1993 were collected and analyzed to determine which factors affected price differentials for beef bulls. Bull sale price varied, from $650 to $20,000 per head. Regression analysis was used to determine the price differential associated with bull traits and marketing factors. Black bulls in the Simmental, Gelbvieh, and Limousin breeds brought premium s of 15% to 53% compared to their nonblack peers. Conformation, disposition , and muscling affected sell prices. Bulls with lower birth weights and birth weight expected progeny differences (EPD) brought ...


Protein Requirements Of Growing Steers Limit-Fed Corn-Based Diets, R.H. Wessels, Evan C. Titgemeyer Jan 1997

Protein Requirements Of Growing Steers Limit-Fed Corn-Based Diets, R.H. Wessels, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Seven steers (513 lb) were used in an experiment to investigate optimal levels and sources of protein in diets limit-fed to allow gain of 2.2 lb/day. Treatments were: a negative-control diet (urea; supplemented, 11.7% crude protein) and six diets containing either 13.5, 15.4, or 17.2% crude protein with either solvent-extracted (SSBM) or expeller-processed (ESBM) soybean meal, in which the soybean meal replaced corn in the control diet. Diets provided 75, 87.5, 100, or 112.5% of estimated crude protein requirement for a gain of 2.2 lb/day. The basal diet contained 83 ...


Evaluation Of The Protein Characteristics Of Four Diverse Grasses, C.P. Mathis, I.E.O. Abdelgadir, R.C. Cochran, J.S. Heldt, B.C. Woods, E.S. Vanzant, K. C. Olson, Evan C. Titgemeyer Jan 1997

Evaluation Of The Protein Characteristics Of Four Diverse Grasses, C.P. Mathis, I.E.O. Abdelgadir, R.C. Cochran, J.S. Heldt, B.C. Woods, E.S. Vanzant, K. C. Olson, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Forage protein characteristics in four grasses were evaluated by the nylon bag method. All of the forages used (Bermudagrass hay, brome hay, forage sorghum hay, and prairie hay) were of relatively low quality, except the Bermudagrass, which was of average quality. The forages differed in the size of different protein fractions and in the rate and extent of protein degradation. Predicted extent of ruminal protein degradation (i.e., ruminal protein availability) was lowest for prairie hay, intermediate for Bermudagrass and forage sorghum hay, and highest for the brome hay.


Effects Of Supplemental Degradable Intake Protein On Intake And Digestibility Of Forage Sorghum Hay, C.P. Mathis, R.C. Cochran, B.C. Woods, J.S. Heldt, Gerald L. Stokka, E.S. Vanzant, K. C. Olson, Evan C. Titgemeyer Jan 1997

Effects Of Supplemental Degradable Intake Protein On Intake And Digestibility Of Forage Sorghum Hay, C.P. Mathis, R.C. Cochran, B.C. Woods, J.S. Heldt, Gerald L. Stokka, E.S. Vanzant, K. C. Olson, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Sixteen ruminally fistulated beef steers with ad libitum access to forage sorghum hay were used to evaluate the effect of increasing level of degradable intake protein (DIP) on forage intake and digestion. Forage OM intake and total OM intake were enhanced with increasing level of DIP supplementation. Similarly, increases in total OM digestibility and total digestible OM intake (TDOMI) were evident. Compared with the negative control, TDOMI was approximately doubled at the highest level of DIP supplementation.


Effect Of Urea Level In Protein Supplements On Performance By Beef Cows Consuming Low-Quality, Tallgrass-Prairie Forage, B.C. Woods, R.C. Cochran, C.P. Mathis, J.S. Heldt, K. C. Olson, Evan C. Titgemeyer, David M. Grieger Jan 1997

Effect Of Urea Level In Protein Supplements On Performance By Beef Cows Consuming Low-Quality, Tallgrass-Prairie Forage, B.C. Woods, R.C. Cochran, C.P. Mathis, J.S. Heldt, K. C. Olson, Evan C. Titgemeyer, David M. Grieger

Kansas Agricultural Experiment Station Research Reports

One hundred thirty two Hereford x Angus cows grazing tallgrass-prairie range during winter were used to evaluate the effects of varying the amount of supplemental degradable intake protein (DIP) derived from urea on cow and calf performance. Treatment groups were: 0, 15, 30, and 45% of the supplemental DIP from urea. Supplements were formulated to contain 30% crude protein (CP), with approximately 70% of the CP being DIP. Palatability was not a significant problem within the range of urea inclusion tested. In general, prepartum weight and condition losses were greater with increasing levels of urea, although the magnitude of condition ...


Economics Of Sealing Horizontal Silos, G.L. Huck, J.E. Turner, M.K. Siefers, B.E. Brent, K.K. Bolsen, Matthew A. Young, Ronald V. Pope Jan 1997

Economics Of Sealing Horizontal Silos, G.L. Huck, J.E. Turner, M.K. Siefers, B.E. Brent, K.K. Bolsen, Matthew A. Young, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

Determining the value of silage saved by effectively sealing a horizontal silo requires only a few simple calculations, but it is still a concept that is often overlooked by many livestock producers who store large amounts of silage in that manner. Kansas produces about 3.0 million tons of silage annually, primarily from corn and sorghum. A majority of this silage is made and stored in either bunker, trench, or "drive-over" pile silos . Only 20 to 30% of these silos are sealed after filling. Producers who do not seal need to take a second look at the economics of this ...


Rapid Nutrient Evaluation Of Sorghum Silages Using Two Types Of Near-Infrared Reflectance Spectroscopy, K.J. Budiongo, L.H. Harbers, B.W. Seabourn, K.K. Bolsen, B.E. Brent Jan 1997

Rapid Nutrient Evaluation Of Sorghum Silages Using Two Types Of Near-Infrared Reflectance Spectroscopy, K.J. Budiongo, L.H. Harbers, B.W. Seabourn, K.K. Bolsen, B.E. Brent

Kansas Agricultural Experiment Station Research Reports

This research was designed to develop a set of prediction equations to measure nutrient composition of Kansas sorghum silages using both a portable and a research type near-infrared spectrometer (NIRS). A robust set of equations for dry matter, crude protein, neutral detergent fiber, and acid detergent fiber was developed for a wide range of sorghum phenotypes . NIRS analysis of sorghum silages is feasible with both a tilting filter (portable) and research instrument with a grating monochrometer.


A Novel Estrus-Synchronization Program For Anestrous And Cycling, Suckled, Beef Cows, W.L. Forbes, L.R. Corah, K. E. Thompson, G.C. Lamb, David M. Grieger, Jeffrey S. Stevenson Jan 1997

A Novel Estrus-Synchronization Program For Anestrous And Cycling, Suckled, Beef Cows, W.L. Forbes, L.R. Corah, K. E. Thompson, G.C. Lamb, David M. Grieger, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

We used four herds at three Kansas ranches to evaluate the potential of two new estrus synchronization strategies to increase estrus expression and fertility of 911 crossbred suckled beef cows. The treatments included: 1) 100 μg of GnRH and a 6-mg norgestomet ear implant on day -7 and 25 mg of PG F2" and implant removal on day 0 (GnRH+NORG+PG F2"); 2) 100 μg of GnRH on day - 7 and 25 mg of PGF 2" on day 0 (GnRH+PG F2"); and 3 ) (control) 25- mg injections of PG F2" on days -14 and 0; (2xPGF2" control) . The ...


The Effect Of Vitamin E, Selenium, And Copper Supplementation Preweaning On The Performance And Immune Response Of Beef Calves, C.L. Wright, L.R. Corah, Gerald L. Stokka, Frank Blecha, G. Lynch Jan 1997

The Effect Of Vitamin E, Selenium, And Copper Supplementation Preweaning On The Performance And Immune Response Of Beef Calves, C.L. Wright, L.R. Corah, Gerald L. Stokka, Frank Blecha, G. Lynch

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the effect of vitamin E, selenium, and copper supplementation on the pre- and postweaning performance, immune responses, and serum metabolites o f crossbred beef calves. In experiment 1, 71 calves were blocked by weight and allotted to one of four individually fed treatments: 1) control supplement (2 lb grain creep ) (CS), 2) CS + .27 mg selenium + 500 IU vitamin E, 3) CS + 9.1 mg copper, and 4) combination of treatments 2 and 3. In experiment 2, 80 crossbred beef calves were blocked by weight and allotted to 5 individually fed treatments: 1) control ...


Summary Of Grazing Research On Kansas Crp Land, Michael R. Langemeier, P.D. Ohlenbusch, R.D. Jones Jan 1997

Summary Of Grazing Research On Kansas Crp Land, Michael R. Langemeier, P.D. Ohlenbusch, R.D. Jones

Kansas Agricultural Experiment Station Research Reports

Animal performance and n et return per acre were examined for four CRP research sites in Kansas in 1 994, 1995, and 1996. Both mowing and prescribed burning increased animal performance in 1994. Mowing was economically feasible on one of the four sites. Prescribed burning was economically feasible on three of four sites. Mowing and burning treatments were not repeated i n 1995 or 1996. Net returns per acre for the site that was grazed with cowcalf pairs ranged from -$8.55 to -$25.54. For the sites grazed with stockers, net returns per acre varied from -$18.67 to ...


Failure Of Precalving Supplementation Of Vitamin E And Dietary Fat To Alter Reproductive Performance Of First Lactation Cows Or The Health Of Their Calves, J.L. Coalson, L.R. Corah, Gerald L. Stokka, Frank Blecha Jan 1997

Failure Of Precalving Supplementation Of Vitamin E And Dietary Fat To Alter Reproductive Performance Of First Lactation Cows Or The Health Of Their Calves, J.L. Coalson, L.R. Corah, Gerald L. Stokka, Frank Blecha

Kansas Agricultural Experiment Station Research Reports

A study was conducted to determine the effect of precalving supplementation with vitamin E and fat on the reproductive performance of first lactation cows and the health of their calves. Approximately 50 days before the first expected calving, 48 crossbred heifers were allotted to four treatments: 1) basal diet that consisted of 13 lb of prairie hay, 7.3 lb of milo, and 1 lb of supplement per heifer per day; 2) basal diet+supplement bringing the diet to 4% fat; 3) basal diet+supplement providing 1000 IU supplemental vitamin E/day; and 4) basal diet plus both fat and ...


Effect Of Heifer Source On Reproductive Performance, Culling, Marketing And Profitability For A Commercial Heifer Development Program, J.M. Lynch, G.C. Lamb, L.R. Corah, David M. Grieger Jan 1997

Effect Of Heifer Source On Reproductive Performance, Culling, Marketing And Profitability For A Commercial Heifer Development Program, J.M. Lynch, G.C. Lamb, L.R. Corah, David M. Grieger

Kansas Agricultural Experiment Station Research Reports

A commercial heifer development operation purchased 483 weanling Angus x Hereford heifers from 11 sources. Heifers were fed a common silage-based diet through an initial developmental period and retained or culled based on average daily gain, pelvic area, and disposition . The percentage of heifers culled from each source ranged from 18.1% to 94.7% and were either sold directly through a local sale barn or sent to a feedlot with retained ownership . Estrus was synchronized, and heifers were artificially inseminated (AI) for 30 days followed by 15 days of natural mating. First service conception rates for each source ranged ...


High Carbon Dioxide, Modified-Atmosphere Packaging (Map) For Beef Steaks, S.E. Luchsinger, Melvin C. Hunt, Donald H. Kropf Jan 1997

High Carbon Dioxide, Modified-Atmosphere Packaging (Map) For Beef Steaks, S.E. Luchsinger, Melvin C. Hunt, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

To determine the effects of storage in a high-carbon dioxide, modified-atmosphere package (MAP) on shelf life, beef strip steaks were packaged under 30% CO2-70% N2 and stored for up to 42 days at 30 or 38 ÌŠF. Aerobic plate counts (APC) and lactic acid bacteria (LAB) counts in these ExtendPak™ packages were well below the threshold of spoilage even after 42 days of MAP storage. After 28 days of storage, steaks stored in vacuum packages had APC counts 1.0 log 10 greater than steaks in MAP. APCs increased during a 5-day display period in steaks store d in vacuum ...


A Survey Of Purchasers Of Wheat Middlings: Storage, Feeding Practices, And Problems, G.W. Warmann, Keith C. Behnke, Dale A. Blasi Jan 1997

A Survey Of Purchasers Of Wheat Middlings: Storage, Feeding Practices, And Problems, G.W. Warmann, Keith C. Behnke, Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

We surveyed 290 purchasers of wheat middlings (WM) from a single flour mill located in central Kansas to characterize the incidence of transport and storage problems and to determine intended animal us e and method of feeding. Over 30% of the 106 respondents had encountered storage problems with WM; mold, spoilage, and bridging in the storage structure were the most common. Over 75% of the respondents who reported no storage problems purchased WM during the winter months and avoided WM purchases at other times, especially during the summer.


Effect Of Bacterial Inoculants On The Fermentation And Preservation Efficiencies And Nutritive Value Of Alfalfa Silage For Growing Steers, K.K. Bolsen, G.L. Huck, M.K. Siefers, J.E. Turner, S.A. Anderson, J.S. Pendergraft, Matthew A. Young, Ronald V. Pope Jan 1997

Effect Of Bacterial Inoculants On The Fermentation And Preservation Efficiencies And Nutritive Value Of Alfalfa Silage For Growing Steers, K.K. Bolsen, G.L. Huck, M.K. Siefers, J.E. Turner, S.A. Anderson, J.S. Pendergraft, Matthew A. Young, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

Two silage bacterial inoculants from Pioneer Hi-Bred International, Inc. were evaluated using second-cutting alfalfa. The Pioneer brand 1174® inoculant and a Pioneer experimental inoculant each increased the rate and efficiency of the ensiling process in both farm-scale and laboratory-scale silos. The two inoculants increase d the DM recovery in the farm-scale silos compared to the untreated silage. Steers fed the experimental inoculant-treated silage gained faster (P<. 10) (2.56 vs. 2.37 lb per day), had a 4.0% higher DM intake, and were 4.3% more efficient than steers fed the untreated silage. The 1174-treated silage supported a numerically but not statistically better steer performance than the control silage. When the DM recovery results were combined with the feed per gain results, the silages with 1174 and experimental inoculant produced 5.3 and 10.5 lb more steer gain per ton of crop ensiled, respectively, than the control silage.


Influence Of Implanting Grazing Steers With Ralgro® Or Synovex-S® Followed By Synovex® Plus™ Or A Ralgro®/Synovex® Plus™ Reimplant Program In The Feedlot On Pasture/Finishing Performance And Carcass Merit, T.R. Fankhauser, Gerry L. Kuhl, D.D. Simms, Gerald L. Stokka, James S. Drouillard, Dale A. Blasi Jan 1997

Influence Of Implanting Grazing Steers With Ralgro® Or Synovex-S® Followed By Synovex® Plus™ Or A Ralgro®/Synovex® Plus™ Reimplant Program In The Feedlot On Pasture/Finishing Performance And Carcass Merit, T.R. Fankhauser, Gerry L. Kuhl, D.D. Simms, Gerald L. Stokka, James S. Drouillard, Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

In an 84-day pasture/132-day finishing study using 480 crossbred steers (675 lb), Ralgro® increased (P<.05) pasture gains 9.3% compared to nonimplanted controls. Gains of Synovex-S®-implanted steers were intermediate. Pasture treatments were split into two finishing-phase implant treatments: Synovex® Plus™ or initial Ralgro with a Synovex Plus reimplant on day 56. No interactions occurred between pasture and finishing implants with respect to finishing performance or carcass traits. Steers on the Synovex Plus treatment gained 11.7% faster and 7.9% more efficiently (P<.01) during the first 56 days of the finishing phase than the Ralgro-implanted steers. However , when those steers were reimplanted with Synovex Plus, they gained 22.2% faster and 21.1% more efficiently (P<.01) during the last 76 days. Over the entire 132-day finishing phase, the feedlot reimplant program improved rate (4.0%; P<.06) and efficiency (7.5%; P<.01) of gain compared to Synovex Plus alone. Overall , gains and intakes during the finishing phase were similar for all pasture implant treatments. However, control pasture steers were 4.5% more efficient (P<.08) than Ralgro and Synovex steers during the finishing phase. Neither pasture or finishing implant treatment influenced carcass traits. This study indicates that implanting during grazing may reduce feed efficiency during the finishing phase, especially when a feedlot reimplant program is not used. However, this finding disagrees with several previous research studies where pasture implantation had no effect on feedlot performance.


Evaluation Of The Effects Of Carbohydrate Source And Level Of Degradable Intake Protein On The Intake And Digestion Of Tallgrass-Prairie Hay By Beef Steers, J.S. Heldt, R.C. Cochran, C.P. Mathis, B.C. Woods, Gerald L. Stokka, K. C. Olson, Evan C. Titgemeyer, Tiruvoor G. Nagaraja Jan 1997

Evaluation Of The Effects Of Carbohydrate Source And Level Of Degradable Intake Protein On The Intake And Digestion Of Tallgrass-Prairie Hay By Beef Steers, J.S. Heldt, R.C. Cochran, C.P. Mathis, B.C. Woods, Gerald L. Stokka, K. C. Olson, Evan C. Titgemeyer, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Thirteen ruminally fistulated steers were used to determine the effect of carbohydrate (CHO) source and degradable intake protein (DIP) on intake and digestion of tallgrass-prairie hay. In general, DIP supplementation had positive effects on intake and digestion, although response varied somewhat with CHO source. Increasing the amount of supplemental CHO generally decreased hay intake, but effects on digestion were dependent on CHO source.


Estimating The Undegradable Intake Protein Content Of Two Forages By Different Commercial Proteases, I.E.O. Abdelgadir, R.C. Cochran, E.S. Vanzant, Evan C. Titgemeyer Jan 1997

Estimating The Undegradable Intake Protein Content Of Two Forages By Different Commercial Proteases, I.E.O. Abdelgadir, R.C. Cochran, E.S. Vanzant, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

We evaluated the potential of several commercially available proteases for use in predicting the undegradable intake protein (UIP) concentrations o f alfalfa and prairie hay. Protease s differed in their estimates o f the rate of forage protein breakdown an d the amounts of different forage protein fractions . At least one protease appeared to yield acceptable predictions of UIP via a short-term, single time-point assay. Assays of this type deserve further consideration for commercial application.


Steam Pasteurization To Reduce Bacterial Populations On Commercially Slaughtered Beef Carcasses, D.E. Schafer, Curtis L. Kastner, Randall K. Phebus, Abbey L. Nutsch Jan 1997

Steam Pasteurization To Reduce Bacterial Populations On Commercially Slaughtered Beef Carcasses, D.E. Schafer, Curtis L. Kastner, Randall K. Phebus, Abbey L. Nutsch

Kansas Agricultural Experiment Station Research Reports

A steam pasteurization system (SPS) has been shown in laboratory and commercial evaluations to effectively reduce bacterial populations on freshly slaughtered beef. Our study evaluate d the bactericidal uniformity of SPS. Samples were collected from the five anatomical locations, one per carcass, 40 samples per location , so that 200 carcasses were evaluated before and 200 after pasteurization. Each carcass was sampled by wiping a 300 c m2 area of the specified location with a moist, sterile sponge. For all locations, the total aerobic plate count (APC) after pasteurization was lower (P#.01). Before pasteurization, the midline was contaminate d most ...


Liquid Smoke Effects On Escherichia Coli O157:H7 In Beef Trimmings And Ground Beef Patties, R. Estrada-Munoz, Elizabeth A.E. Boyle, James L. Marsden Jan 1997

Liquid Smoke Effects On Escherichia Coli O157:H7 In Beef Trimmings And Ground Beef Patties, R. Estrada-Munoz, Elizabeth A.E. Boyle, James L. Marsden

Kansas Agricultural Experiment Station Research Reports

Liquid smoke (LS) reduce d Escherichia coli O157:H7 counts in inoculated beef trimmings and ground beef patties. The counts were reduced (P<.05) by .5 log 10 cfu/g immediately after beef trimmings were treated with 8% LS and by 1.2, 2.0, 1.6, and 2.3 log 10 cfu/g after the trimmings were formed into patties and tested or stored under refrigeration for 1, 2, and 3 days, respectively (2 log10 reduction represents 99%) Thus, LS could make beef-containing products safer with respect to foodborne pathogens.


Antioxidant Properties Of Liquid Smoke In Precooked Beef Patties, R. Estrada-Munoz, Elizabeth A.E. Boyle, James L. Marsden Jan 1997

Antioxidant Properties Of Liquid Smoke In Precooked Beef Patties, R. Estrada-Munoz, Elizabeth A.E. Boyle, James L. Marsden

Kansas Agricultural Experiment Station Research Reports

Liquid smoke (LS) effectiveness in controlling lipid oxidation and warmed-over flavor (WOF) in beef was investigated. Aroma scores, "α-thiobarbituri c acid (TBA) numbers, and pH values were lower (P<.05) in LS-treated beef patties than in patties without LS. LS has useful antioxidative properties in precooked ground beef patties at the normally recommended percentage of 1.5%. That should reduce undesirable flavor development and product loss.


Ultrasound Versus Convection Cooking Of Beef Longissimus And Pectoralis Muscles, F.W. Pohlman, J.F. Zayas, Michael E. Dikeman, John A. Unruh Jan 1997

Ultrasound Versus Convection Cooking Of Beef Longissimus And Pectoralis Muscles, F.W. Pohlman, J.F. Zayas, Michael E. Dikeman, John A. Unruh

Kansas Agricultural Experiment Station Research Reports

Longissimus and pectoralis muscles were removed from 10 steer carcasses at 4 days postmortem , aged for 14 days at 4 ÌŠF, then assigned to either ultrasound (ULS) or convection (Conv) cooking to either 144 or 15 8 ÌŠF internal temperature. Ultrasound cooking was faster (P<.05), had greater (P<.05) moisture retention and less (P<.05) cooking loss, and used less energy (P<.05). It also produced muscle samples that required less (P<.05) peak force to shear than those from Conv cooking and resulted in superior (P<.05) myofibrillar tenderness. No significant interactions occurred among cooking method, muscle, or endpoint temperature. As expected, longissimus (ribeye) muscles cooked faster (P< .05) and required less (P<.05) energy and were superior (P<.05) in instrumentally measured texture and sensory tenderness than pectoralis muscles. Cooking to 158EF caused greater (P<.05) moisture and cooking losses, required more (P<.05) time and energy, and degraded (P<.05) instrumental textural and sensor y characteristics. Ultrasound offers a new cooking mode that could increase cooking speed, improve energy efficiency and improve some textural characteristics, compared to conventional cooking.


Use Of Video Image Analysis, Ribeye Grids, And Linear Ribeye Measurements To Predict And Compare Ribeye Areas From Carcass Left And Right Sides, A.T. Waylan, R.E. Campbell, John A. Unruh Jan 1997

Use Of Video Image Analysis, Ribeye Grids, And Linear Ribeye Measurements To Predict And Compare Ribeye Areas From Carcass Left And Right Sides, A.T. Waylan, R.E. Campbell, John A. Unruh

Kansas Agricultural Experiment Station Research Reports

Ribeye tracings from 265 beef carcasses were used to compare ribeye areas from right and left sides. When video image analysis (VIA) was used to determine ribeye area, no difference (P=.48) was observed between right and left sides. However, when ribeye area was determine d by using USDA grids, those on the left side were slightly larger (P<.01) than those on right side. This difference is negligible considering the wide rang e in variation (SD=.68 in2) between right and left side ribeye areas. Ribeye area correlations between VIA and grid result s were high for both right (.96) and left (.95) sides. Linear measures (length, midwidth, and widest width) of ribeyes predicted ribeye area with reasonable accuracy ( R2=.90 and .91). These methods provide several options to determine ribeye area. However, data collectors need to realize that the difference between right and left side ribeye areas may be a greater variable than the sensitivity of the method used.


Characterization Of Different Biological Types Of Steers (Cycle Iv): Retail Product Yields, T.L. Wheeler, L.V. Cundiff, R.M. Koch, J.D. Crouse, Michael E. Dikeman Jan 1997

Characterization Of Different Biological Types Of Steers (Cycle Iv): Retail Product Yields, T.L. Wheeler, L.V. Cundiff, R.M. Koch, J.D. Crouse, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Retail product (RP) yields of 888 steers were obtained from mating Hereford (H) and Angus (A) dams to H or A (HA), Charolais (Ch), Gelbvieh (G b), Pinzgauer (Pz), Shorthorn (Sh), Galloway (Gw), Longhorn (Lh), Nellore (Ne), Piedmontese (Pm), and Salers (Sa) sires. The yields were measured at two trim levels (.30 and .00 in.). Data were evaluated at constant age (426 d), carcass weight (714 lb), and marbling (Small00) endpoints. At a constant age of 426 d, RP% was greater in carcasses from steers sired by Continental European breeds (Gb, Ch, Sa, Pz; 63.3 to 65.5 % at ...


Economic Impact Of Preweaning Vaccinations On Health And Performance Of Weaned Feeder Cattle, J.M. Lynch, P.L. Houghton, L.R. Corah, Gerald L. Stokka Jan 1997

Economic Impact Of Preweaning Vaccinations On Health And Performance Of Weaned Feeder Cattle, J.M. Lynch, P.L. Houghton, L.R. Corah, Gerald L. Stokka

Kansas Agricultural Experiment Station Research Reports

In October, 1995, 3,565 head of freshly weaned, British-breed calves were received into a weaning facility in southwest Nebraska. Calves were determined to be preconditioned if they had received both viral an d Pasteurella vaccines prior to weaning (PREWEAN; n = 2,315), and all other calves were considered to have no preconditioning (CRTL; n = 1,250). Cattle were processed within 24 hours of arrival, and booster vaccinations were given when appropriate. Average days on feed at the weaning facility were similar between PREWEAN and CTRL calves (52.4 and 50.3 days, respectively), but average daily gain (2.24 ...


Delineation Of Geographic Markets For Fed Cattle, Ted C. Schroeder Jan 1997

Delineation Of Geographic Markets For Fed Cattle, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

Determining the extent of geographic markets for fed cattle is important for monitoring performance of the industry. The ability of packing plants to influence prices is determined in part by their ability to segment the market for fed cattle and isolate themselves from plants in other regions. This study analyzed transaction data from 43 U.S. steer and heifer slaughter plants collected by the Grain Inspection Packers and Stockyards Program for approximately a 1-year period during 1992-93. Beef packers procured an average of 64% of their cattle within 75 miles of packing plants, 82 % within 150 miles, and 92% within ...


Effect Of Revalor-G On The Performance Of Stocker Heifers Grazing Irrigated, Smooth Bromegrass Pasture For A Full Season, Gerry L. Kuhl, M.D. Reynolds, Robert T. Brandt Jr., Dale A. Blasi Jan 1997

Effect Of Revalor-G On The Performance Of Stocker Heifers Grazing Irrigated, Smooth Bromegrass Pasture For A Full Season, Gerry L. Kuhl, M.D. Reynolds, Robert T. Brandt Jr., Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

A 150-day field study was conducted to evaluate single vs. reimplant strategies for stocker heifers grazing irrigated smooth bromegrass . Three hundred forty-three previously nonimplanted British crossbred heifers averaging 494 lb were assigned to one of seven treatments: 1) no implant-control (NC), 2) Revalor-G® (REVG), 3) Ralgro® (RAL), 4) Synovex-H® (SYNH), 5) REVG/REVG, 6) RAL/RAL, and 7) SYNH/SYNH. Reimplanting (Treatments 5, 6 , and 7) was done on day 75 of the trial. In the first 75 days, all implants increased (P<.05) average daily gain (ADG) compared to NC. For the last 75 days (days 75 through 150), heifers implanted with REVG, REVG/REVG, RAL/RAL, and SYNH gained faster (P<.05) than NC or those implanted with RAL, and SYNH/SYNH. No significant differences occur red among the latter three treatments. Over the entire trial, there was no advantage to reimplanting heifers with REVG or RAL. SYNH/ SYNH heifers gained less (P<.05) than their single -implanted counterparts.


Effect Of Grain Sorghum Particle Size And Digest “M” Enzyme Treatment On Performance Of Growing Steers, T.J. Kessen, D.D. Simms, Gerry L. Kuhl, James S. Drouillard Jan 1997

Effect Of Grain Sorghum Particle Size And Digest “M” Enzyme Treatment On Performance Of Growing Steers, T.J. Kessen, D.D. Simms, Gerry L. Kuhl, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

A 73-day growing study utilizing 203 crossbred steers (681 lb) and a digestion trial examined the effect o f sorghum grain particle size on rumen fermentation, ration digestibility, and performance of growing steers fed 37% grain and 63% ground alfalfa. Dry-rolled grain sorghum p article sizes in both trials were about 2000, 1500, and 1000 microns, for the coarse- (CR), medium- (MR), and fine-rolled (FR) treatments , respectively. Coarsely rolled corn (2000 microns) was included as a positive control. In the growing study, half of sorghum was treated at feeding time with an enzyme product, Digest "M". The rations were 35 ...


Effects Of Various Supplemental Starch And Protein Levels On Ruminal Fermentation And Liquid Passage Of Beef Steers Fed Tallgrass-Prairie Hay, R.C. Cochran, E.S. Vanzant, K. C. Olson, Timothy J. Jones, Evan C. Titgemeyer Jan 1997

Effects Of Various Supplemental Starch And Protein Levels On Ruminal Fermentation And Liquid Passage Of Beef Steers Fed Tallgrass-Prairie Hay, R.C. Cochran, E.S. Vanzant, K. C. Olson, Timothy J. Jones, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

The effect of supplements containing various proportions of degradable intake protein (DIP) and starch on ruminal digestion characteristics of forage-fed beef steers was evaluated. Fluid passage rates, ruminal ammonia (N H), 3 and total volatile fatty acid (VFA) concentrations increased as the amount of supplemental DIP increased. Starch infused at .3% of BW increased molar proportion s of propionate and butyrate and decreased acetate, compared to feeding DIP alone. However, proportions of branched-chain VFA increased with DIP at all levels of starch infusion. Total digestible organic matter intake (TDOMI) was increased with each addition of DIP; however, infusing starch within ...


Effect Of Supplement Strategy On Intake And Digestion Of Prairie Hay By Beef Steers, R.H. Greenwood, C.A. Loest, Evan C. Titgemeyer, James S. Drouillard Jan 1997

Effect Of Supplement Strategy On Intake And Digestion Of Prairie Hay By Beef Steers, R.H. Greenwood, C.A. Loest, Evan C. Titgemeyer, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

The effects of supple mental corn (4 lb/day), rumen-protected methionine (4.25 grams DL-methionine per day), or a cooked molasses block (1 lb/day) on intake and digestion of prairie hay were measured i n beef steers. Steers that consumed the cooked molasses block ate more forage than control steers, whereas forage intake was decreased by supplemental corn. Total tract organic matter digestion, expressed as a percent of intake, was numerically greatest for steers consuming the cooked molasses block. Digestible organic matter intake, a rough estimate of energy available to the steers, was unaffected by methionine but was increased ...