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Cattlemen's Day

1986

Articles 1 - 30 of 46

Full-Text Articles in Life Sciences

Methods Of Tenderization For Value-Added, Hot-Boned, Restructured, Pre-Cooked Roasts From Cows, H.A. Flores, Donald H. Kropf, Melvin C. Hunt, Curtis L. Kastner Jan 1986

Methods Of Tenderization For Value-Added, Hot-Boned, Restructured, Pre-Cooked Roasts From Cows, H.A. Flores, Donald H. Kropf, Melvin C. Hunt, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Restructured, pre-cooked roasts were prepared from four hot-boned USDA Utility grade cow carcasses. Before forming the roasts, meat was either blade tenderized, manually trimmed of large connective tissue deposits, or both blade tenderized and trimmed. Control roasts received neither treatment. Although trimming minimized the negative effects of connective tissue, blade tenderization was frequently as effective, and sometimes superior, and minimized the high labor costs and shrink losses associated with manual trimming.


A Comparison Of Synovex-S® And Steer-Oid® Implants For Finishing Cattle, G. Goldy, Jack G. Riley, Ronald V. Pope Jan 1986

A Comparison Of Synovex-S® And Steer-Oid® Implants For Finishing Cattle, G. Goldy, Jack G. Riley, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

There were no significant differences in performance or carcass traits for finishing cattle implanted with either Synovex-S® or STEER-oid®. The 122-day trial used 180 steers, with each treatment having 15 replicates.


Effect Of Maturity At Harvest On Yield, Composition, And Feeding Value Of Hybrid Forage Sorghum Silages, J. Dickerson, K. Bolsen, S. Hamma, J. Hoover Jan 1986

Effect Of Maturity At Harvest On Yield, Composition, And Feeding Value Of Hybrid Forage Sorghum Silages, J. Dickerson, K. Bolsen, S. Hamma, J. Hoover

Kansas Agricultural Experiment Station Research Reports

Results from three trials showed the diversity among forage sorghum hybrids for both agronomic and nutritive characteristics. Later maturing and nonheading hybrids produced silages with low dry matter (DM) contents, low pH values, high levels of fermentation acids, and low voluntary intakes. Earlier maturing and moderate grain-producing hybrids, but their silages had high DM contents and higher voluntary intakes. Stage of maturity at harvest had surprisingly little influence on silage chemical composition, intake, or digestibility.


Effects Of Castration, Dehorning, Frame Size, And Gut Fill On The Long-Term Performance Of Feeder Calves, F.K. Brazle, R.R. Schalles Jan 1986

Effects Of Castration, Dehorning, Frame Size, And Gut Fill On The Long-Term Performance Of Feeder Calves, F.K. Brazle, R.R. Schalles

Kansas Agricultural Experiment Station Research Reports

In two experiments, calves purchased as steers gained substantially faster than calves purchased as bulls and then castrated, during both the starting period and the subsequent growing period. Large-framed calves gained .22 lb per day faster, and small-framed calves .21 lb per day slower, than medium-framed calves. Cattle appearing gaunt at the start of the trial gained 1.33 lb per day less than those with average gut fill.


Weight Changes And Estrous Cycles After Abortion In Beef Heifers, J.M. Wright, G.H. Kiracofe Jan 1986

Weight Changes And Estrous Cycles After Abortion In Beef Heifers, J.M. Wright, G.H. Kiracofe

Kansas Agricultural Experiment Station Research Reports

Ninety-one pregnant, crossbred Angus heifers aborted after receiving an injection of a prostaglandin analog at an average of 50, 75, 100, or 122 days of gestation. Weight change in the first 3 weeks after abortion and subsequent estrous cycles were observed. No detrimental effects were noted in those heifers aborting at 50 or 75 days of gestation, and growth rate was not altered. Those heifers aborting at 100 days of gestation exhibited a decreased growth rate; those aborted at 122 days lost weight. There was more udder development, vaginal discharge, and retained membranes in heifers aborted later in gestation. Typically ...


Effects Of Preweaning And Post Weaning Implants On Suckling, Growing, And Finishing Steer Performance, D.D. Simms, R.W. Lee, S.B. Laudert, James J. Higgins Jan 1986

Effects Of Preweaning And Post Weaning Implants On Suckling, Growing, And Finishing Steer Performance, D.D. Simms, R.W. Lee, S.B. Laudert, James J. Higgins

Kansas Agricultural Experiment Station Research Reports

One hundred and ninety-five crossbred steers were used to compare lifetime implant strategies and study the effects of implanting during the suckling period on performance in the growing and finishing periods. There were no differences in growing period gains when both groups were implanted in the suckling period and the growing period. However, steers implanted in the suckling period but not implanted in the growing period had significantly lower gains than all other treatments including controls. Steers implanted only in the growing period had better feed efficiency in the growing period than both controls and steers implanted only in the ...


Cow Size And Milk Level: Results Of A Simulation Program, R.R. Schalles, R.M. Bourdon Jan 1986

Cow Size And Milk Level: Results Of A Simulation Program, R.R. Schalles, R.M. Bourdon

Kansas Agricultural Experiment Station Research Reports

A simulation program was used to evaluate nine genotypes of cattle based on, cow size and milk production. Return per cow unit using current economics is given. The larger, heavy milking cows were more than twice as profitable on a ranch basis than the small, low milking cows.


The Manhattan Weather In 1984 And 1985, L.D. Bark Jan 1986

The Manhattan Weather In 1984 And 1985, L.D. Bark

Kansas Agricultural Experiment Station Research Reports

The charts that follow show graphically the daily weather in Manhattan during the last 2 years. Each chart has three smooth curves to represent the average weather conditions at Manhattan based on 70 years of records from the Experiment Station files. The two smooth curves near the top of the charts show the average maximum and minimum temperatures that occur throughout the year. They reach a low point in mid-,January and climb to a peak in mid-July. The smooth curve in the lower part of the chart indicates the average accumulative precipitation during the year. Starting at zero on ...


Effects Of Compudose® Implants From Birth To Slaughter On Carcass And Meat Traits Of Young Bulls And Steers, T.D. Hopkins, Michael E. Dikeman Jan 1986

Effects Of Compudose® Implants From Birth To Slaughter On Carcass And Meat Traits Of Young Bulls And Steers, T.D. Hopkins, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Implanting young bulls with Compudose® three times from birth to slaughter resulted in performance similar to that of nonimplanted bulls, but decreased masculinity development. Implanted bulls tended to have higher marbling scores, more tender meat, more youthful carcasses, and lighter lean color than nonimplanted bulls. Although both implanted and nonimplanted bulls were more efficient and gained faster in the feedlot than implanted steers, the steers showed very little carcass masculinity and had finer-textured lean. Implanted steers had more youthful carcasses and lower Warner-Bratzler shear values than nonimplanted bulls. However, nonimplanted bulls grew faster, were more efficient, had larger ribeyes and ...


Comparison Of 36 Mg And 72 Mg Ralgro® For Suckling Steer Calves, D.D. Simms Jan 1986

Comparison Of 36 Mg And 72 Mg Ralgro® For Suckling Steer Calves, D.D. Simms

Kansas Agricultural Experiment Station Research Reports

In a study in which 525 Simmental-cross steer calves were assigned to five implant treatments in four trials, 72 mg Ralgro® implants failed to increase performance significantly over' conventional 36 mg implants.


How Stems Of Sorghum Silage Are Digested, L.H. Harbers, R.A. Schweitzer Jan 1986

How Stems Of Sorghum Silage Are Digested, L.H. Harbers, R.A. Schweitzer

Kansas Agricultural Experiment Station Research Reports

Upper and lower portions of stem from three sorghum cultivars were ensiled and then subjected to rumen fermentation. The lower stems were readily digested, whereas the upper sections were poorly utilized. Several microscopic techniques were used to help explain the difference.


Heterosis In Simmental Angus Rotational-Cross Calves, L.A. Kriese, R.R. Schalles, Lyle W. Lomas Jan 1986

Heterosis In Simmental Angus Rotational-Cross Calves, L.A. Kriese, R.R. Schalles, Lyle W. Lomas

Kansas Agricultural Experiment Station Research Reports

Heterosis estimates were determined for gestation length, birth weight, and yearling weight using a two-breed rotational crossbreeding system with Angus and Simmental cattle. Heterosis for gestation length was -.3%; birth weight, 8.31%; weaning weight 5.05%, and yearling weight, 5.39%. Angus-sired calves from Simmental darns were significantly heavier at weaning and as yearlings than the reciprocal cross.


Effect Of Single Ralgro® Implant During The Suckling Period On Reproductive Performance Of Replacement Heifers, T.B. Goehring, L.R. Corah, D.D. Simms Jan 1986

Effect Of Single Ralgro® Implant During The Suckling Period On Reproductive Performance Of Replacement Heifers, T.B. Goehring, L.R. Corah, D.D. Simms

Kansas Agricultural Experiment Station Research Reports

One hundred and seven spring-born, crossbred heifers were used to determine the effect of a single Ralgro® implant on their reproductive performance. Three implant treatments were used: 1) Non-implanted controls, 2)36 mg Ralgro® at birth, or 3) 36 mg Ralgro® at 2 to 3 months of age. Heifers implanted at birth had significantly lower first service conception rates and overall pregnancy rules than non-implanted controls or those implanted at 2 to 3 months of age. Pelvic areas of yearling were increased by implanting at birth or 2 to 3 months of age. Age at puberty and the percentage of ...


Effect Of Various Dosages Of Ralgro® In The Suckling Period On Weight Gain During The Growing Period, D.D. Simms, G. Boyd, James J. Higgins Jan 1986

Effect Of Various Dosages Of Ralgro® In The Suckling Period On Weight Gain During The Growing Period, D.D. Simms, G. Boyd, James J. Higgins

Kansas Agricultural Experiment Station Research Reports

We studied how implanting with various dosages of Ralgro® during the suckling period affected gains in the growing period. Preweaning performance was reported in the 1985 Cattlemen's Day Report. All calves, regardless of suckling period treatment, received 36 mg Ralgro® at the start of the growing period. Average daily gains during the growing period were similar for all treatments. Consequently, the added weight obtained from the suckling-period implants was still present at the end of the growing period.


Effect Of Combinations Of Rumen-Protected Methionine Plus Rumen-Protected Lysine On Performance Of Finishing Steers, G. Goldy, Jack G. Riley, Ronald V. Pope Jan 1986

Effect Of Combinations Of Rumen-Protected Methionine Plus Rumen-Protected Lysine On Performance Of Finishing Steers, G. Goldy, Jack G. Riley, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

Feed efficiency for finishing steers was significantly improved (7.4%) when rumen-protected methionine and lysine were added to a finishing ration.


Whole-Plant Grain Sorghum Silages For Growing Cattle, R. Smith, K. Bolsen, J. Hoover Jan 1986

Whole-Plant Grain Sorghum Silages For Growing Cattle, R. Smith, K. Bolsen, J. Hoover

Kansas Agricultural Experiment Station Research Reports

Four trails were conducted to determine the effects of processing (rolling before feeding, with rolls set to break 95% of the kernels) and stage of maturity at harvest on the nutritive value of whole-crop grain sorghum silages for growing cattle. Rolling mid-dough silages did not improve feeding value. However, rolling at later maturity stages increased cattle gains and feed efficiencies, with the more mature, hard-grain silages giving the greatest response. Only starch digestibility was consistently affected (increased) by processing. Silage dry matter (DM) intake tended to increase, but feed efficiencies tended to decrease with advancing maturity. Neither average daily gains ...


Evaluation Of Rumensin® In Late Season, Salt-Limited, Protein Supplements Fed To Grazing Steers And Heifers, L.R. Corah, F.K. Brazle Jan 1986

Evaluation Of Rumensin® In Late Season, Salt-Limited, Protein Supplements Fed To Grazing Steers And Heifers, L.R. Corah, F.K. Brazle

Kansas Agricultural Experiment Station Research Reports

Even though an average daily Rumensin® consumption of over 100 mg per was achieved in all three trials, it did not significantly improve daily gains of steers or heifers grazing late-season native range. Late-season protein supplementation improved average daily gain by over .2 lb per head.


Effect Of Salinomycin On Performance Of Grazing Stocker Heifers, Lyle W. Lomas Jan 1986

Effect Of Salinomycin On Performance Of Grazing Stocker Heifers, Lyle W. Lomas

Kansas Agricultural Experiment Station Research Reports

The effect of feeding 0, 25, 50, 100, or 150 mg of salinomycin per head daily on performance of stocker heifers grazing smooth bromegrass pasture was evaluated in a 126-day trial. Feeding 100 or 150 mg of salinomycin per head daily produced the fastest gain.


Effects Of Mga And Pgf On Estrus Induction And Synchronization In Cows And Heifers, G.W. Boyd, D.J. Patterson, L.R. Corah, J.R. Brethour Jan 1986

Effects Of Mga And Pgf On Estrus Induction And Synchronization In Cows And Heifers, G.W. Boyd, D.J. Patterson, L.R. Corah, J.R. Brethour

Kansas Agricultural Experiment Station Research Reports

Three trials were conducted in the spring of 1985 to evaluate the effectiveness of MGA feeding and Prostaglandin (PGF) injection on estrus induction and synchronization. Trials 1 and 2 were both done on a Kansas ranch and involved 70 heifers and 86 cows, respectively. In both trials, all cycling and non-cycling females were fed MGA (7 days in trial 1, 9 days in trial 2) and half of the cows and heifers received a PGF injection. The estrus response was higher (P<.0l) for the cycling heifers with the combination treatment. Both treatments resulted in similar first service conception rates and both were effective in inducing estrus in noncycling heifers. Only a small percentage of the cows in trial 2 were cycling prior to the treatments and only a small percentage of the non-cycling cows responded to the MGA. In trial 3, half of the cycling heifers were fed MGA for 7 days and PGF was injected on day 7. Response to synchronization peaked 96 to 120 hr following MGA withdrawal. Among F1 Angus X Hereford heifers, the MGA-PGF treatment reduced (P<.0l) first service conception rates as compared to controls (55 vs 80%), although a reduction was not seen with F Brahman X Hereford heifers. Conversely, 45-day pregnancy rates tended to be higher among both groups of synchronized heifers (P>.05). The MGA treatment also initiated cyclicity in prepuberal females of both crosses.


Adding Fat And/Or Sodium Bicarbonate To Steer Finishing Rations That Contain Wheat, J.R. Brethour, B. Lee, Jack G. Riley Jan 1986

Adding Fat And/Or Sodium Bicarbonate To Steer Finishing Rations That Contain Wheat, J.R. Brethour, B. Lee, Jack G. Riley

Kansas Agricultural Experiment Station Research Reports

Adding .6 pound fat or .22 pound sodium bicarbonate (soda) to finishing rations containing rolled wheat significantly improved performance and appeared to increase the substitution value of wheat. Both fat and soda increased feed intake. The improved gains from adding fat corresponded to increased energy intake. However, soda seemed to enhance nutrient utilization. There was more response to fat when we fed 100 percent vs. 50 percent wheat, but feeding 100 percent wheat depressed performance, with or without fat, to unsatisfactory levels.


Beef Cattle Systems Analysis, R.R. Schalles Jan 1986

Beef Cattle Systems Analysis, R.R. Schalles

Kansas Agricultural Experiment Station Research Reports

For cattle producers to stay in business, they must apply the business management techniques used by sophisticated non-agricultural enterprises. Among these techniques is systems analysis, in which formulas representing interrelationships between various inputs are built into a computer program. The program simulates expected results, based on available information.


Effect Of Variety, Location, And Irrigation On Selected Criteria For Evaluating Wheat As A Feed For Ruminants, G. Goldy, Andrew William Lenssen, T. Walters, Jack G. Riley, Gerry L. Posler Jan 1986

Effect Of Variety, Location, And Irrigation On Selected Criteria For Evaluating Wheat As A Feed For Ruminants, G. Goldy, Andrew William Lenssen, T. Walters, Jack G. Riley, Gerry L. Posler

Kansas Agricultural Experiment Station Research Reports

There were no significant differences in in vitro digestibility between wheat varieties, but there was a trend for differences due to locations. Location differences were much wider for test weight, 1000 kernel weight, hardness score and crude protein level than variety differences. Wheat from irrigated plots had higher grain yields and crude protein content, but lower test weights, 1000 kernel weight, and hardness values than wheat from fallow plots at the same location. There were no differences in digestibilites between fallow and irrigated wheat.


Bacteriological And Histopathological Investigations Of Liver Abscesses, K.F. Lechtenberg, H.W. Leipold, Tiruvoor G. Nagaraja Jan 1986

Bacteriological And Histopathological Investigations Of Liver Abscesses, K.F. Lechtenberg, H.W. Leipold, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Fusobacterium necrophorum was the predominant bacterial isolate from 49 liver abscesses. Biotype A tended to occur in pure infections and produced a more severe tissue reaction than biotype B, which tended to occur as a mixed infection.


Comparative Nutritional Composition Of Selected Grain Sorghum Varieties, G. Goldy, T. Walters, Andrew William Lenssen, Jack G. Riley, Gerry L. Posler Jan 1986

Comparative Nutritional Composition Of Selected Grain Sorghum Varieties, G. Goldy, T. Walters, Andrew William Lenssen, Jack G. Riley, Gerry L. Posler

Kansas Agricultural Experiment Station Research Reports

For the 188 grain sorghum varieties studied, in vitro digestibilites were statistically similar, but there was a significant difference between the 12 production locations. Crude protein, calcium, and phosphorus levels indicated slight varietal differences; however, strong locational effects were evident.


Effects Of Monensin And Sodium Propionate On Net Nutrient Absorption In Steers Fed High-Grain Diets, D.L. Harmon, T.B. Avery Jan 1986

Effects Of Monensin And Sodium Propionate On Net Nutrient Absorption In Steers Fed High-Grain Diets, D.L. Harmon, T.B. Avery

Kansas Agricultural Experiment Station Research Reports

Adding either monensin or sodium propionate alone or in combination to the diet of steers fed high-grain diets resulted in increased net absorption of glucose. Monensin reduced ammonia output and gut uptake of urea. We propose that increased propionate availability reduces the utilization of glucose by gut tissues. allowing more glucose to reach the portal system. These changes may contribute to the increased feed efficiency seen when monensin is fed.


The Feeding Value Of Wheat And High Moisture Sorghum Grain Fed Singly And In Combination To Finishing Steers, D. Axe, K. Bolsen, R. Lee, George M. Herron Jan 1986

The Feeding Value Of Wheat And High Moisture Sorghum Grain Fed Singly And In Combination To Finishing Steers, D. Axe, K. Bolsen, R. Lee, George M. Herron

Kansas Agricultural Experiment Station Research Reports

Wheat and high moisture sorghum grain were fed singly and in two combinations in a 121-day feedlot trial at the Garden City Branch Experiment Station. Feed efficiency improved with increasing proportions of wheat in the ration. However, rates of gain were similar for the three wheat-containing rations. Results showed that at least 33% sorghum grain can be substituted for wheat in finishing rations with little influence on performance. The combination rations produced rates of gain that were above predicted values, indicating positive associative effects.


Influence Of Ionophore Addition To High-Grain Diets On Net Nutrient Absorption, D.L. Harmon, T.B. Avery Jan 1986

Influence Of Ionophore Addition To High-Grain Diets On Net Nutrient Absorption, D.L. Harmon, T.B. Avery

Kansas Agricultural Experiment Station Research Reports

Adding ionophores to a high grain diet increased glucose absorption and decreased the transport of urea back into the gut. These changes are consistent with the antibiotic effects of these compounds. Decreased microbial activity in the gut and shifts in the pattern of absorbed nutrients may help explain the improvements in feed efficiency seen with ionophore addition.


Effect Of Maturity At Harvest On Yield And Composition Of Hybrid Grain And Forage Sorghum Silages, R. Smith, K. Bolsen, T. Walter, B. Kirch Jan 1986

Effect Of Maturity At Harvest On Yield And Composition Of Hybrid Grain And Forage Sorghum Silages, R. Smith, K. Bolsen, T. Walter, B. Kirch

Kansas Agricultural Experiment Station Research Reports

Results from two trials indicate that grain sorghums can produce high, whole-crop dry matter yields in a short time. Although grain sorghum whole-crop silage may yield less tonnage than forage sorghum, its higher crude protein and grain-to-forage ratio could more than compensate for the difference. Maximum yields, both whole-crop and grain, were obtained at late-dough maturity in both years. However, since high quality silages were made at each harvest stage, grain sorghums had a relatively long harvest season. Grain sorghums had a dry matter content suitable for ensiling over the range of maturities studied. In addition, their yield and nutrient ...


Additive-Treated Corn Silage For Growing Cattle, K. Bolsen, R. Smith, H. Ilg, D. Axe Jan 1986

Additive-Treated Corn Silage For Growing Cattle, K. Bolsen, R. Smith, H. Ilg, D. Axe

Kansas Agricultural Experiment Station Research Reports

The response of corn silage to the additive, Silo-Best Soluble®, was not consistent for the farm silo criteria measured. Ensiling temperatures and chemical compositions were similar for control and treated silages, except for ethanol, which was lower in the treated silage. Dry matter recovery favored the treated silage in both the top and bottom halves of the silos and in buried bags. Although daily gains were similar for calves fed control and treated silages, feed conversion was slightly better for those fed control silage.


Effect Of Sodium Bicarbonate On Gains Of Stocker Cattle Fed Grain On Tall Fescue Pastures, F. Brazle Jan 1986

Effect Of Sodium Bicarbonate On Gains Of Stocker Cattle Fed Grain On Tall Fescue Pastures, F. Brazle

Kansas Agricultural Experiment Station Research Reports

Adding sodium bicarbonate to the grain supplement of steers grazing lush, low endophyte, tall fescue pasture had no effect on cattle performance.