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Kansas Agricultural Experiment Station Research Reports

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1997

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Articles 61 - 80 of 80

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

Delineation Of Geographic Markets For Fed Cattle (1997), 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 …

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Economic Impact Of Preweaning Vaccinations On Health And Performance Of Weaned Feeder Cattle (1997), 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 (1997), 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 vs 1.87 kb) and …

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

Determinants Of Prices For Purebred Beef Bulls (1997), 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 …

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Characterization Of Different Biological Types Of Steers (Cycle Iv): Retail Product Yields (1997), 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 (1997), 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 .00 …

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

Summary Of Grazing Research On Kansas Crp Land (1997), 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 $31 .39. Net …

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The Effect Of Vitamin E, Selenium, And Copper Supplementation Preweaning On The Performance And Immune Response Of Beef Calves (1997), 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 (1997), 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 …

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Evaluation Of The Protein Characteristics Of Four Diverse Grasses (1997), 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 (1997), 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.

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Roundup 1997 Jan 1997

Roundup 1997

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 …

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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.

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Agronomic And Silage Quality Traits Of Forage Sorghum Cultivars In 1995, M.K. Siefers, J.E. Turner, G.L. Huck, S.A. Anderson, K.K. Bolsen, Matthew A. Young, Ronald V. Pope Jan 1997

Agronomic And Silage Quality Traits Of Forage Sorghum Cultivars In 1995, M.K. Siefers, J.E. Turner, G.L. Huck, S.A. Anderson, K.K. Bolsen, Matthew A. Young, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

Agronomic and silage quality traits were measure d for 37 forage sorghum cultivars and three grain sorghum hybrids. The 1995 growing season was characterized by above average rainfall in the spring and early summer, and a hard freeze on September 22. At the time of the freeze, 20 cultivars had reached the early-milk to early-dough stage, 12 were in the bloom stage, and the remaining eight were still in the early- to late-boot stage . The late planting date and low plant populations resulted in below-normal whole-plant D M and grain yields. Plant height s for the grain sorghums were …

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The Effect Of Stage Of Maturity On The Nutritive Value Of Smooth Bromegrass And Eastern Gamagrass Silages, J.E. Turner, M.K. Siefers, G.L. Huck, S.A. Anderson, K.K. Bolsen, Matthew A. Young Jan 1997

The Effect Of Stage Of Maturity On The Nutritive Value Of Smooth Bromegrass And Eastern Gamagrass Silages, J.E. Turner, M.K. Siefers, G.L. Huck, S.A. Anderson, K.K. Bolsen, Matthew A. Young

Kansas Agricultural Experiment Station Research Reports

Early- and late-harvested smooth bromegrass and eastern gamagrass silages and fourthcutting alfalfa silage were compared in two, 20- day voluntary intake and digestion trials. Visual appraisal and pH values indicated that all five forages were well preserved as silage. Voluntary intake tended to be higher for sheep fed bromegrass and alfalfa silages compared to those fed gamagrasssil ages. The late-harvested gamagrass silage had the lowest DM intake in both periods. Dry matter, crude protein, and neutral detergent fiber digestibilities were generally similar for the two grasses within the early- and late-harvested silages. Chemical analyses indicated that the two bromegrass silages …

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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.

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Feathermeal/Bloodmeal Liquid Suspensions For Calves Grazing Winter Wheat Pasture, Gerry L. Kuhl, G.E. Jr. Levalley, G.D. Mccormack, Dale A. Blasi, James S. Drouillard, Glenn E. Newdigger Jan 1997

Feathermeal/Bloodmeal Liquid Suspensions For Calves Grazing Winter Wheat Pasture, Gerry L. Kuhl, G.E. Jr. Levalley, G.D. Mccormack, Dale A. Blasi, James S. Drouillard, Glenn E. Newdigger

Kansas Agricultural Experiment Station Research Reports

A field study was conducted over 2 years at four different locations in south central Kansas to compare a feathermeal/bloodmeal (ESCAPE) liquid suspension to a molasses-based liquid supplement (ENERGY) and a dry mineral supplement (CONTROL) on the liveweight gain of 768 calves grazing wheat pasture. No significant differences occurred in supplement intake between ESCAPE and ENERGY across years (P=.88). Offering a liquid supplement containing either ES CAPE or ENERGY did not improve (P=.91) growth performance relative to CONTROL calves.

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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.

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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 vitamin E. Supplementation of …

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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 …

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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 …

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Estrus Detection, First Service Conception, And Embryonic Death In Beef Heifers Synchronized With Mga And Prostaglandin, G.C. Lamb, B.L. Miller, V. Traffas, L.R. Corah Jan 1997

Estrus Detection, First Service Conception, And Embryonic Death In Beef Heifers Synchronized With Mga And Prostaglandin, G.C. Lamb, B.L. Miller, V. Traffas, L.R. Corah

Kansas Agricultural Experiment Station Research Reports

In April, 1996, 1501 yearling crossbred heifers located on seven different ranches were estrus-synchronized and artificially inseminated (AI) 12 hours after they were detected in estrus. Herd size ranged from 82 to 43 9 head. Of the 1501 heifers, 86.1% were detected in estrus. First service conception rates of those 1292 heifers averaged 58.4% (40.3 to 68.8%). In three herds, ultrasonography was used to diagnose 525 heifers as pregnant at 30 days after AI. At 60 to 90 days after the breeding season, palpation of the uterus confirmed that embryonic death had occurred in 4.2% (4.0 to 4.8%). First service …

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Milking Twice Daily In The Presence Of A Cow’S Own Calf Fails To Prolong Postpartum Anestrus, G.C. Lamb, J.M. Lynch, B.L. Miller, David M. Grieger, Jeffrey S. Stevenson Jan 1997

Milking Twice Daily In The Presence Of A Cow’S Own Calf Fails To Prolong Postpartum Anestrus, G.C. Lamb, J.M. Lynch, B.L. Miller, David M. Grieger, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Six treatment s were initiated approximately 15 days after calving: 1) calf was weaned permanently from its dam (calf weaned; CW); 2) calf was present continuously with its dam but contact with the udder was prohibited (calf restricted; CR); 3) calf was present continuously with its dam (calf present; CP); 4) CR dam was suckled twice daily by her own calf (CR+S2x); 5) CW dam was milked twice daily (CW+M2x); 6) CR dam was milked twice daily (CR+ M2x). During the 4-week treatment period , cows in the CR+M2x treatment had twofold greater yield milk and milk components than CW+M2x …

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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 …

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