Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 30 of 36
Full-Text Articles in Life Sciences
Effect Of Insecticide Impregnated Ear Tags On Horn Fly Populations And Suckling Calf Performance, D. Simms, T. Willman, R. Schalles
Effect Of Insecticide Impregnated Ear Tags On Horn Fly Populations And Suckling Calf Performance, D. Simms, T. Willman, R. Schalles
Kansas Agricultural Experiment Station Research Reports
Three trials were conducted to determine the effect of insecticide impregnated ear tags on horn fly counts and weight gain of suckling calves. In trials 1 and 2, cow calf pairs on two Kansas ranches were assigned to these treatments: 1) Control - no tag, 2) Cows Only - 1 tag per cow, 3) Calf Only - 1 tag per calf, and 4) Cow and Calf - 1 tag each. Each tag treatment was in a separate pasture. All insecticide tag treatments reduced (P<.05) horn flies on cows and calves in July and August; however, by September the tags were only reducing (P<.05) flies on cows. While the weight gain response to tags was variable, when trials were combined, all tag treatments increased (P<.05) calf gains over controls. Using a single tag per cow was better (P<.05) than a single tag per calf, while tagging both the cow and calf was no better than either single tag treatment. Average fly counts for each pasture were negatively correlated with calf weight gains indicating a strong relationship between fly populations and calf performance. In trial 3, apparent horn fly resistance to the insecticide in the tags resulted in terminating the trial mid-summer. Research in Kansas and other states indicates that horn fly resistance to pyrethroid insecticides is becoming a common problem which means that producers may need to revert to previously used methods of horn fly control.
Effect Of Oxytetracycline Hydrochloride Coating Added To Compudose Implants In Grazing Steers, Lyle W. Lomas
Effect Of Oxytetracycline Hydrochloride Coating Added To Compudose Implants In Grazing Steers, Lyle W. Lomas
Kansas Agricultural Experiment Station Research Reports
Adding an oxytetracycline coating to Compudose implants did not change their effectiveness. Implanting with Compudose significantly increased gain of grazing steers an average of 17% compared to non-implanted controls.
Effects Of Low Voltage Electrical Stimulation During Bleeding And Hot Boning On Beef Loin Eye And Top Round Muscles, J.B. Axe, Melvin C. Hunt, Donald H. Kropf, D.G. Gray, Curtis L. Kastner, Michael E. Dikeman
Effects Of Low Voltage Electrical Stimulation During Bleeding And Hot Boning On Beef Loin Eye And Top Round Muscles, J.B. Axe, Melvin C. Hunt, Donald H. Kropf, D.G. Gray, Curtis L. Kastner, Michael E. Dikeman
Kansas Agricultural Experiment Station Research Reports
Our study evaluated the effects of low voltage electrical stimulation (ES) during bleeding and hot boning at 1 hr postmortem on loin eye (LE) and top round (TR) muscles. Possibly because of relatively slow initial chilling rate used in our study, hot-boned (HB) muscles, even without ES, were comparable to conventionally chilled and boned counterparts. In fact, coupling ES with HB proved less desirable than HB only.
Kansas Steer Futurities - The Record On Retained Ownership 1974-1983, C. Lambert, D. Simms, B. Schalles, L. Corah, Gerry L. Kuhl, M. Sands
Kansas Steer Futurities - The Record On Retained Ownership 1974-1983, C. Lambert, D. Simms, B. Schalles, L. Corah, Gerry L. Kuhl, M. Sands
Kansas Agricultural Experiment Station Research Reports
Spring born steer calves, weaned and delivered to custom feedlots by Kansas producers, were fed to slaughter weight. Gain and carcass information was gathered on over 5,000 head fed in 53 separate tests since the fall of 1974. Retaining ownership of steers through the feedlot phase has been profitable for producers in six of the last nine years, and in only two years have losses been large. Those same calves, if sold at weaning, would have been profitable in only three of the last nine years, using Kansas Farm Management Association average costs of production. The cattle averaged 59 percent …
Effects Of Low Voltage Electrical Stimulation On Quality Characteristics Of Young Bulls Fed To 14, 16 And 18 Months Of Age., D.G. Gray, John A. Unruh, Curtis L. Kastner, Michael E. Dikeman
Effects Of Low Voltage Electrical Stimulation On Quality Characteristics Of Young Bulls Fed To 14, 16 And 18 Months Of Age., D.G. Gray, John A. Unruh, Curtis L. Kastner, Michael E. Dikeman
Kansas Agricultural Experiment Station Research Reports
Low voltage electrical stimulation of young bulls at 30 to 45 min after bleeding resulted in a lower muscle pH, higher marbling score, lighter cherry red color and reduced incidence of heat ring formation when compared to non-stimulated controls. Ribeye steaks from electrically stimulated sides were more tender than non-stimulated controls, but bottom round steaks were not different. Our results indicate that low voltage electrical stimulation, incorporated into a continuous slaughter operation as late as 30 to 45 min after bleeding, can improve USDA quality characteristics and tenderness of meat from young bulls.
Medication Programs For Newly Received Calves, D. Axe, M. Spire, Jack G. Riley
Medication Programs For Newly Received Calves, D. Axe, M. Spire, Jack G. Riley
Kansas Agricultural Experiment Station Research Reports
Three medication programs for newly purchased feeder calves were compared and found to be similar in effectiveness. There was considerable variation in cost between the three medication programs which indicates a potential cost saving opportunity. Twenty-three percent of the calves received were diagnosed as sick at least once during the 56-day trial.
Effect Of Ralgro® Implantation Periods On Masculinity And Carcass Traits Of Young Bulls And Steers., D.G. Gray, L.R. Corah, John A. Unruh, Michael E. Dikeman
Effect Of Ralgro® Implantation Periods On Masculinity And Carcass Traits Of Young Bulls And Steers., D.G. Gray, L.R. Corah, John A. Unruh, Michael E. Dikeman
Kansas Agricultural Experiment Station Research Reports
Repeated Ralgro® implantation of young bulls from birth to slaughter resulted in gains and carcass characteristics traits intermediate between non-implanted bulls and steers, and meat palatability traits similar to steers. On the other hand, implanting bulls near birth reduced postweaning gains and both live and carcass masculinity. There is little advantages to implanting bulls from weaning to slaughter without initial implantation at birth.
Consumer Preference Of Beef Rib Steaks From Implanted Steers, Implanted And Non-Implanted Bulls., C.D. Pelton, Dell M. Allen, L.R. Corah, George A. Milliken
Consumer Preference Of Beef Rib Steaks From Implanted Steers, Implanted And Non-Implanted Bulls., C.D. Pelton, Dell M. Allen, L.R. Corah, George A. Milliken
Kansas Agricultural Experiment Station Research Reports
Our research showed that implanting bulls from birth to slaughter made steaks from bulls as acceptable as steers to consumer panels. Implanting bulls from weaning to slaughter resulted in the least desirable consumer panel ratings for all palatability traits measured.
Silo-Best® For Sorghum Silages, K. Bolsen, H. Ilg, M. Hinds
Silo-Best® For Sorghum Silages, K. Bolsen, H. Ilg, M. Hinds
Kansas Agricultural Experiment Station Research Reports
Silo-Best lowered the ensiling temperature and increased the dry matter recovered from the silo by over 5 percentage units (82.3 vs. 77.3%). Calves fed the control silage gained faster and consumed more feed, but those fed treated silage were slightly more efficient. The more efficient gain and lowered shrink loss for Silo-Best silage gave 6.4 extra pounds of calf gain per ton of crop ensiled.
Effect Of Sorghum Type And Harvest Date On Silage Feeding Value, R. Smith, K. Bolsen, H. Ilg, M. Hinds, J. Dickerson, J. Hoover, Ronald V. Pope
Effect Of Sorghum Type And Harvest Date On Silage Feeding Value, R. Smith, K. Bolsen, H. Ilg, M. Hinds, J. Dickerson, J. Hoover, Ronald V. Pope
Kansas Agricultural Experiment Station Research Reports
Five silages produced in 1982 were evaluated in two growing trials using 96 steer calves. Forage sorghum silage (heading) was assigned a feeding value of 100. Based on comparative rates and efficiencies of gain, feeding value for the grain sorghum silage averaged 107.5 in Trial 1. The non-heading forage sorghum silage had a value of 64.6 in Trial 1 but only 40.2 before freezing and 31.4 after freezing in Trial 2. The poor values for the non-heading silages were due, in part, to very low feed intakes. There was no advantage in harvesting the non-heading sorghum after a freeze. Rolling …
Feedlot Performance Of Angus And Brahman X Angus Steers During Cold Weather, S. Boyles, Jack G. Riley, Ronald V. Pope
Feedlot Performance Of Angus And Brahman X Angus Steers During Cold Weather, S. Boyles, Jack G. Riley, Ronald V. Pope
Kansas Agricultural Experiment Station Research Reports
Straightbred Angus steers gained .21 lb/day faster than Brahman x Angus steers during a 184-day winter feeding trial. Angus steers had a higher yield grade. more fat thickness at 12th rib, and graded 90% Choice. Brahman x Angus steers were 40 days younger at slaughter, had more carcass weight/day of age and larger loin eyes, but only graded 10% choice. There was no difference in feed efficiency.
Urea And Fermentrol® Additives For Forage Sorghum Silage, B. Janicki, K. Bolsen, M. Hinds, H. Ilg
Urea And Fermentrol® Additives For Forage Sorghum Silage, B. Janicki, K. Bolsen, M. Hinds, H. Ilg
Kansas Agricultural Experiment Station Research Reports
Adding urea to forage sorghum greatly increased the ensiling temperature, produced a more rapid and extensive fermentation, and resulted in more shrink loss in the silo. Fermentrol®, an enzyme-inoculant additive, had very little affect on the silage temperature or chemical composition, but it did reduce the shrink loss. Calves red urea-treated silage had the poorest performance. Control and Fermentrol® silages each produced about 90 lb of calf gain per ton of crop ensiled, however urea silage produced only 60 lb. All three silages had short bunk lives throughout the trial.
Comparison Of Synovex-S And Steer-Oid Implants For Feedlot Steers, B. Lee, S. Laudert
Comparison Of Synovex-S And Steer-Oid Implants For Feedlot Steers, B. Lee, S. Laudert
Kansas Agricultural Experiment Station Research Reports
Synovex-S and STEER-oid were compared in a 133-day finishing trial to evaluate their effects on growth and carcass traits of yearling steers. No significant differences in average daily gain, feed intake, feed to gain ratio, carcass weight, ribeye area, fat thickness, quality grade or yield grade were detected between the two implants at the end of the trial. However, significant differences in feed efficiency were detected during days 0-35 and 36-63, possibly due to different release rates of the implants.
Comparison Of Compudose, Ralgro And Synovex-S Implants For Growing Steer Calves, D. Simm, Gerry L. Kuhl, R. Schalles
Comparison Of Compudose, Ralgro And Synovex-S Implants For Growing Steer Calves, D. Simm, Gerry L. Kuhl, R. Schalles
Kansas Agricultural Experiment Station Research Reports
Four field trials were conducted to compare Ralgro, Synovex-S and Compudose implants for growing steer calves. All implant programs significantly increased (P<.01) average daily gain. Reimplanting with Ralgro or Synovex-S improved gain an additional 5.6% compared to the average of these implants used singly and 4.8% compared to Compudose.
Effects Of Rapid And Delay Silo Filling And 1177® Silage Inoculant On Performance Of Growing Cattle Fed Corn And Sorghum Silages., K. Bolsen, H. Ilg, M. Hinds, George A. Milliken, J. Hoover
Effects Of Rapid And Delay Silo Filling And 1177® Silage Inoculant On Performance Of Growing Cattle Fed Corn And Sorghum Silages., K. Bolsen, H. Ilg, M. Hinds, George A. Milliken, J. Hoover
Kansas Agricultural Experiment Station Research Reports
Eight concrete stave silos (10 x 50 ft) were used in two trials to evaluate rapid (24 to 36 hr) and delay (15 days) filling, each with our without 1177® silage inoculant. Corn silage was used in Trial 1; forage sorghum in Trial 2. The delay-fill silages had a dry matter (DM) range of 34.4 to 39.9% in Trial 1 and 24.2 to 29.6% in Trial 1. All eight silages were well preserved with the four delay-fill silos having lower total fermentation acids than their rapid-fill counterparts. With corn silage, the rapid-fill silos had higher silage DM recoveries than the …
Silage Additive Update: 1984, K. Bolsen, M. Hinds, J. Brethour
Silage Additive Update: 1984, K. Bolsen, M. Hinds, J. Brethour
Kansas Agricultural Experiment Station Research Reports
Numerous commercial silage additives, whose manufacturers claim will improve silage quality, are available to Kansas farmers and ranchers. We believe that these claims must ultimately be documented with farm-scale research. To date, Manhattan and Ft. Hays farm-scale silo results clearly indicate that a few silage additives do improve silage quality and are cost-effective. Several of them have consistently reduced "in silo" losses. But results probably will not be favorable with all additives under every farm condition. Nor will research results obtained with one commercial product in our trials also apply to other products on the market, however similar in ingredient …
High Moisture Corn Ensiled With Urea For Cattle Finishing Rations, B. Young, R. Smith, K. Bolsen, H. Ilg
High Moisture Corn Ensiled With Urea For Cattle Finishing Rations, B. Young, R. Smith, K. Bolsen, H. Ilg
Kansas Agricultural Experiment Station Research Reports
Dry rolled corn, ensiled high moisture corn, and high moisture corn that was rolled and ensiled with urea or left whole and ensiled with urea were compared in two cattle trials. Dry corn gave the poorest cattle performance; rolled, ensiled high moisture corn gave the best. When corn was left whole, adding urea prior to ensiling increased dry matter losses in the silo and produced a butyric acid fermentation. Urea increased the bunk life of the ensiled high moisture corn.
The Weather In 1982 And 1983, L. Dean Bark
The Weather In 1982 And 1983, L. Dean Bark
Kansas Agricultural Experiment Station Research Reports
The 1983 weather in Kansas upset carefully laid plans and confounded the best management techniques. Yet the averages for 1982 and 1983 appear very similar. In Manhattan, the average temperatures were 54.04 F for 1982 and 54.06 for 1983. Precipitation totals were 32.88 in. for 1982 and 35.74 in. for 1983. However, those who watched their crops dry up in the summer of 1983 after delayed planting because of wet fields, and suffered with their livestock through heat stress in July and August and cold stress during December know differently. Neither our crops nor our livestock ever experience "average" weather. …
Single Vs. Reimplant Programs For Finishing Steers, Jack G. Riley, Ronald V. Pope
Single Vs. Reimplant Programs For Finishing Steers, Jack G. Riley, Ronald V. Pope
Kansas Agricultural Experiment Station Research Reports
Finishing yearling beef steers were used to compare various implant programs in a 167-day trial. All implant programs increased daily gain ranging from 6.6 to 25.4% over non-implanted controls and improved feed efficiency ranging from .5 to 13.9%. Steers implanted with Ralgro® initially and reimplanted 75 days later with Synovex-S gained the fastest and most
Sodium Bicarbonate And Feed Flavor Supplements For Calves Fed Forage Sorghum Silage, K. Bolsen, D. Axe
Sodium Bicarbonate And Feed Flavor Supplements For Calves Fed Forage Sorghum Silage, K. Bolsen, D. Axe
Kansas Agricultural Experiment Station Research Reports
High-moisture forage sorghum silage was fed to 108 steer calves to measure the effect of sodium bicarbonate and feed flavor (Omniflavor®) on calf performance. Overall performance was similar for all three rations by the end of the 94-day trial, but at days 29 to 56, when weather conditions were extremely cold, bicarbonate and Omniflavor each gave improved rate and efficiency of gains.
Comparison Of Compudose With Ralgro Or Synovex-S Reimplant Programs For Finishing Steers, S.B. Laudert, G.V. Jr. Davis
Comparison Of Compudose With Ralgro Or Synovex-S Reimplant Programs For Finishing Steers, S.B. Laudert, G.V. Jr. Davis
Kansas Agricultural Experiment Station Research Reports
Finishing yearling steers reimplanted with Synovex-S or Ralgro gained 6.8 and 4.2% faster, respectively, than those implanted with Compudose. However, feed efficiency was not significantly different among treatments. Steers implanted with Compudose gained 5.1% faster and more efficiently than those implanted with a single Ralgro.
Effect Of Ammonia Level And Treatment Temperature On Intake And Digestibility Of Wheat Straw By Lambs, A. Laytimi, K. Bolsen, B. Janicki
Effect Of Ammonia Level And Treatment Temperature On Intake And Digestibility Of Wheat Straw By Lambs, A. Laytimi, K. Bolsen, B. Janicki
Kansas Agricultural Experiment Station Research Reports
Replicate, covered wheat straw (WS) stacks were treated with 1.5 or 3.0% anhydrous ammonia in three environmental chambers at 37, 68, or 95 F, for 23 days. Then digestibility was measured (wethers). Rations were 88% wheat straw and 12% supplement. The control wheat straw was non-ammoniated but contained 5% urea in the supplement. Stack temperatures increased rapidly within 2.5 hours post-ammoniation, and equilibrated at chamber temperatures for the rest of the treatment period. Both crude protein (CP) and in vitro matter digestibility of the WS increased with ammonia level and treatment temperature. Percent of the ammonia recovered increased with temperature …
Toxicity Problems With Ammoniated Dry Roughages, D. Simms, Gerry L. Kuhl, J. Brethour
Toxicity Problems With Ammoniated Dry Roughages, D. Simms, Gerry L. Kuhl, J. Brethour
Kansas Agricultural Experiment Station Research Reports
In two trials conducted at the Fort Hays Experiment Station, symptoms of toxicity (hyperexcitability, circling, convulsions, death) were observed in several newborn calves (l to 14 days of age) nursing cows consuming ammoniated forage sorghum hay. None of these symptoms was observed in calves nursing cows consuming untreated hay. No toxicity symptoms were observed in the cows on any treatment. However, several instances of similar symptoms in cattle consuming ammoniated forages have been reported in growing calves and adult cattle in Kansas, Texas, California, and Kentucky. The primary forages involved in these incidents were forage sorghum, hybrid sudan, cereal grain, …
Effect Of Lasalocid On The Sexual Development Of Beef Heifers, L. Corah, Jack G. Riley
Effect Of Lasalocid On The Sexual Development Of Beef Heifers, L. Corah, Jack G. Riley
Kansas Agricultural Experiment Station Research Reports
Lasalocid (Bovatec®) improved daily gain of replacement heifers by .20 lb per day and reduced the time to first heat in heifers fed on a lower level of energy, but had no significant affect in the higher energy group. Feeding Lasalocid did not affect conception rates.
Effect Of Bovatec, Oxytetracycline (Otc), Bovalec Plus Otc And Rumensin-Tylan Combination On Feedlot Performance And Liver Abscess Control In Finishing Steers, B. Lee, S. Laudert
Effect Of Bovatec, Oxytetracycline (Otc), Bovalec Plus Otc And Rumensin-Tylan Combination On Feedlot Performance And Liver Abscess Control In Finishing Steers, B. Lee, S. Laudert
Kansas Agricultural Experiment Station Research Reports
Adding Bovatec, OTC, Bovalec plus OTC or Rumensin-Tylan to finishing steer diets did not significantly improve average daily gain in the 133 day feeding period, but did improve (P<.05) feed to gain ratios. The Rumensin-Tylan combination was the only treatment that reduced (P<.05) liver abscess incidences.
Relationship Of Cow Weight, Cow Condition And Dosage Of Prostaglandin On Synchronized Heat, D. Simms, L. Corah
Relationship Of Cow Weight, Cow Condition And Dosage Of Prostaglandin On Synchronized Heat, D. Simms, L. Corah
Kansas Agricultural Experiment Station Research Reports
Simmental cows on two Kansas ranches received either 2 or 3 ml injections of prostaglandin cloprostenol (Estrumate). Dose levels had little effect on response rate in either small or large cows. However, for each unit increase in body condition score, 12% more cows expressed heat.
Effect Of Actaplanin On Performance Of Grazing Steers, Lyle W. Lomas
Effect Of Actaplanin On Performance Of Grazing Steers, Lyle W. Lomas
Kansas Agricultural Experiment Station Research Reports
Feeding actaplanin in a loose mineral mix or twice weekly in a supplement significantly improve gains of grazing steers. The greatest improvement in performance was found with average daily actaplanin intakes of 255 or 257 mg per head in the two trials.
Performance And Profitability Of Calves And Yearlings In Southeast Kansas Steer Futurities (Seven Year Summary), C. Lambert, F. Brazle, L. Corah, R. Schalles
Performance And Profitability Of Calves And Yearlings In Southeast Kansas Steer Futurities (Seven Year Summary), C. Lambert, F. Brazle, L. Corah, R. Schalles
Kansas Agricultural Experiment Station Research Reports
Since the fall of 1976, 370 calves and 330 yearlings have been fed through the Southeast Kansas Steer Futurities. In four of the last seven years, both age categories have shown profits through the feedlot phase, using incoming market values assigned by professional market managers, actual feedlot performance and expenses, and slaughter value based on grade and yield date. Calves have been more profitable than yearlings in each of the seven years.
Feeding Bulls-A Practical Evaluation, D. Simms, L. Corah, Gerry L. Kuhl, R. Schalles
Feeding Bulls-A Practical Evaluation, D. Simms, L. Corah, Gerry L. Kuhl, R. Schalles
Kansas Agricultural Experiment Station Research Reports
Bull calves on nine Kansas ranches were either castrated and implanted with Ralgro, left intact and not implanted, or left intact and implanted with Ralgro, with performance evaluated through slaughter. Bulls produced leaner carcasses and gained slightly faster and more efficiently than steers. However, based on actual prices received, bulls returned $16.09 less to their owners than steers. Implanting with Ralgro during the suckling phase did not influence any of the traits measured. It is evident that marketing is a major problem which makes bull feeding risky
Culbac® And Add-F® (Formic Acid) Additives For Sudangrass And High Moisture Shelled Corn Silages, K. Bolsen, M. Hinds, H. Ilg
Culbac® And Add-F® (Formic Acid) Additives For Sudangrass And High Moisture Shelled Corn Silages, K. Bolsen, M. Hinds, H. Ilg
Kansas Agricultural Experiment Station Research Reports
Laboratory silos were used in three trials to evaluate sudangrass (slightly or moderately wilted) and high moisture corn silages, each receiving the following treatments: (1) control (no additive); (2) CULBAC® dry; (3) CULBAC® liquid; and (4) ADD-F® (formic acid). Although the 12 silages were well preserved visually, there were differences in their chemical compositions. Silages treated with CULBAC dry had the highest DM recoveries and probably the most efficient fermentations. As expected, formic acid restricted the amount of fermentation, but surprisingly, it did not improve DM recovery.