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1984

Kansas Agricultural Experiment Station Research Reports

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Full-Text Articles in Life Sciences

Performance Of Young Pigs Fed Sorghum Grain Damaged By Lesser Grain Borer Or Fungal Invasion (1984), J C. Dietz, Keith C. Behnke, C W. Deyoe, G L. Allee Jan 1984

Performance Of Young Pigs Fed Sorghum Grain Damaged By Lesser Grain Borer Or Fungal Invasion (1984), J C. Dietz, Keith C. Behnke, C W. Deyoe, G L. Allee

Kansas Agricultural Experiment Station Research Reports

Nutritional quality and physical conditions were used to evaluate grain sorghum damaged by either the lesser grain borer Rhyzopertha dominica (F.) or by nontoxin-producing fungi. Experimental treatments were: 1) control 04.0% moisture), 2) lesser grain borer (LGB) (14% moisture with initial infestation of 4.5 adults/lb of grain) and 3) fungal (Fungal) (15.5% moisture). Control grain was used to formulate a 17% crude protein diet. The remaining dietary treatments were formulated by replacing the control grain with the two damaged grains on a weight basis. Forty-five female Yorkshire and 12 crossbred male pigs, with an average initial weight of 22 lb …

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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 Jan 1984

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.

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Effect Of Oxytetracycline Hydrochloride Coating Added To Compudose Implants In Grazing Steers, Lyle W. Lomas Jan 1984

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.

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Stocking Rate And Supplementation For Steers Grazing Bluestem Pasture In Early Summer, R. Held, Jack G. Riley, Clenton E. Owensby, E. Smith Jan 1984

Stocking Rate And Supplementation For Steers Grazing Bluestem Pasture In Early Summer, R. Held, Jack G. Riley, Clenton E. Owensby, E. Smith

Kansas Agricultural Experiment Station Research Reports

Native bluestem pastures were grazed from May 16 to July 14, 1983 by steers with an average beginning weight of 545lbs., at stocking rates of 1.82, 1.5, and 1.25 acres per steer. Daily gains for the high and low stocking rates were higher (P<.01) than for the medium stocking rate (2.22, 2.24 vs. 1.92 lb/day). Gains per acre were similar for the low and medium stocking rates, but was higher for the highest stocking rate (73, 75 vs 105 lb/acre). Half of the steers in each stocking rate were self-fed a salt-limiting sorghum grain- Rumensin® mixture at an average intake of 1.84 lb per head per day. Supplementation increased daily gain (P<.01) over non-supplemented (2.39 vs. 1.86 lb/day). Gain per acre was increased 22 lbs by supplementation. Herbage remaining following grazing decline with increased stocking rate. No regrowth occurred following livestock removal in mid July. Warm-season perennial grass composition and basal cover have not changed differentially in relation to stocking rate during the 3-year study period.

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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 Jan 1984

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.

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Feedlot Performance Of Angus And Brahman X Angus Steers During Cold Weather, S. Boyles, Jack G. Riley, Ronald V. Pope Jan 1984

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.

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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 Jan 1984

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.

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Toxicity Problems With Ammoniated Dry Roughages, D. Simms, Gerry L. Kuhl, J. Brethour Jan 1984

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, …

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Effect Of Actaplanin On Performance Of Grazing Steers, Lyle W. Lomas Jan 1984

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.

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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 Jan 1984

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.

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High Moisture Corn Ensiled With Urea For Cattle Finishing Rations, B. Young, R. Smith, K. Bolsen, H. Ilg Jan 1984

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.

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Time-Restricted Feeding Of Pigs: Social And Feeding Behavior (1984), J Vargas Vargas, J V. Craig, Robert H. Hines Jan 1984

Time-Restricted Feeding Of Pigs: Social And Feeding Behavior (1984), J Vargas Vargas, J V. Craig, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

Twenty finishing pigs were used to evaluate effects of time-restricted feeding on social interactions and feeding patterns of pigs at feeding time. Correlation analysis for pairs of traits, involving feeding activities, social interactions, and rate of gain indicate that more aggressive pigs went first to the feeder, fed more frequently, and gained faster. Although on continuous artificial lighting, timed-fed pigs displayed more feeding and aggressive behavior during day light hours.; Swine Day, Manhattan, KS, November 15, 1984

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Fat In Late Gestation Sow Diets: Effects On Pig Survival And Growth (1984), G L. Allee, George A. Milliken, Jim L. Nelssen Jan 1984

Fat In Late Gestation Sow Diets: Effects On Pig Survival And Growth (1984), G L. Allee, George A. Milliken, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

An on-farm experiment was conducted utilizing 140 sows to compare the effect of feeding either fat or additional corn during late gestation on subsequent pig performance. Beginning on day 100 of gestation and until the day of farrowing, sows were fed 6 lb daily of a corn-soybean meal diet top-dressed with either 1 lb of fat or 2.25 lb of corn. Litter size was equalized within 24 hr of farrowing. Feeding fat to sows during late gestation increased (P<.05) the number of pigs weaned per litter by .4 pig compared to feeding additional corn. Sows fed supplemental fat during late gestation weaned heavier litters (P=.06) compared to sows fed extra corn. These results indicate that feeding fat during late gestation to sows with a high energy intake increased pig survival over that obtained when the same calories were provided with corn.; Swine Day, Manhattan, KS, November 15, 1984

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1984 Report Of Agricultural Research, Southeast Kansas Branch Station, R. W. Dougherty, K. W. Kelley, L. W. Lomas, J. L. Moyer, D. W. Sweeney Jan 1984

1984 Report Of Agricultural Research, Southeast Kansas Branch Station, R. W. Dougherty, K. W. Kelley, L. W. Lomas, J. L. Moyer, D. W. Sweeney

Kansas Agricultural Experiment Station Research Reports

Through annual research reports the Southeast Kansas Branch Experiment Station attempts to keep the area's consumers and producers of agricultural products informed on the Station's research accomplishments. In serving the area, we conduct research at fields located at Parsons, site of headquarters; at Mound Valley, the original. location of the Branch Station; and at Columbus, which has been in the Kansas State University research system for over 60 years. This report for 1983 covers five areas of research emphasis: Beef Cattle, Crops, Forages, Soil and Water Management, and Crop Varietal Development. We sincerely hope that it will be useful to …

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Effect Of Reduced Nighttime Temperature On Nursery Pig Performance (1984), David A. Nichols, Frank Blecha, M Johnston, Robert H. Hines Jan 1984

Effect Of Reduced Nighttime Temperature On Nursery Pig Performance (1984), David A. Nichols, Frank Blecha, M Johnston, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

A total of 144 weaned pigs were used to evaluate the effect of reduced nighttime temperatures on pig performance. No differences were observed in average daily feed intake, daily gain, or feed efficiency regardless of temperature treatment. These results indicate that constant high temperature may not be required for nursery pigs.; Swine Day, Manhattan, KS, November 15, 1984

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Silage Additive Update: 1984, K. Bolsen, M. Hinds, J. Brethour Jan 1984

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 …

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Implant Comparisons For Finishing Steers, S. Laudert, Gerry L. Kuhl, M. Walker Jan 1984

Implant Comparisons For Finishing Steers, S. Laudert, Gerry L. Kuhl, M. Walker

Kansas Agricultural Experiment Station Research Reports

A one hundred and forty day field trial was conducted to evaluate the relative performance of steers implanted with Compudose, Ralgro and Synovex-S. Daily gains of cattle receiving a single initial implant were increased 8.0% with Compudose, 12.7% with Ralgro and 21.5% with Synovex-S compared to non-implanted controls. Steers on a reimplant program with Ralgro and/or Synovex-S gained 23.6 to 24.9% faster than controls, with no significant difference due to implant brand or sequence.

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Lecithin Addition To Starter Pig Diets With And Without Added Fat And Whey (1984), D Van Wormer, D S. Pollmann Jan 1984

Lecithin Addition To Starter Pig Diets With And Without Added Fat And Whey (1984), D Van Wormer, D S. Pollmann

Kansas Agricultural Experiment Station Research Reports

A total of 316 crossbred weanling pigs were used in two studies to evaluate the effect of the addition of edible-grade, unbleached soy lecithin on growth in starter pig diets with and without added fat and/or dried whey. Addition of fat to a corn-soybean meal diet improved (P<.05) feed efficiency but addition of lecithin did not affect performance. When lecithin and fat were added in combination, average daily gain was less (P<.05) than for diets without added fat. This may be due to a high level of undigestible fat having a limiting effect on intake and consequently decreasing gains. A low level of lecithin (1.5%) in diets without whey gave approximately the same response as a 4% fat diet without thus making lecithin a possible fat substitute should, it be economically feasible.; Swine Day, Manhattan, KS, November 15, 1984

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Effects Of Source And Level Of Supplemental Energy On Reproductive Performance Of Sows (1984), S Christianson, G L. Allee, D S. Pollmann, Jim L. Nelssen Jan 1984

Effects Of Source And Level Of Supplemental Energy On Reproductive Performance Of Sows (1984), S Christianson, G L. Allee, D S. Pollmann, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Three feeding trials utilizing 185 sows (149 primiparous and 36 multiparous) were conducted to evaluate the effects of feeding various levels and sources of supplemental energy during lactation and from weaning to rebreeding on sow reproductive performance. Sows fed tallow (5% or 10%) during lactation had reproductive performance similar to sows fed the basal milo-soybean meal diet. Ad libitum feed intake was not affected by the addition of tallow for either the last week of lactation or for the entire three week lactation. However, daily digestible energy (DE) intake was increased with the addition of tallow to diets. Survival rate …

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Effects Of Exposure To Boars And Other Gilts On The Estrous Response After Synchronization With Altrenogest (1984), Duane L. Davis, Jeffrey S. Stevenson Jan 1984

Effects Of Exposure To Boars And Other Gilts On The Estrous Response After Synchronization With Altrenogest (1984), Duane L. Davis, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Estrus was synchronized in gilts by feeding altrenogest for 18 days. All gilts were penned in gestation stalls. Beginning the day before the last altrenogest treatment and continuing until 3 days after treatment, gilts were either exposed to a boar for 2 hr /day, group-penned with other gilts for 2 hr /day, both exposed to a boar and group-penned, or given neither treatment. Boar exposure shortened the interval to estrus but group-penning had no effect. None of the treatments improved the synchrony of estrus.; Swine Day, Manhattan, KS, November 15, 1984

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Creep Feeding And Phytohemagglutinin Skin-Test Responses In Pigs (1984), Frank Blecha, D S. Pollmann, D M. Vanwormer Jan 1984

Creep Feeding And Phytohemagglutinin Skin-Test Responses In Pigs (1984), Frank Blecha, D S. Pollmann, D M. Vanwormer

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to determine the influence of creep feeding on cellular immunity in young pigs. Creep feeding from 10 days of age to weaning did not influence phytohemagglutinin skin-test responses.; Swine Day, Manhattan, KS, November 15, 1984

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Medication Programs For Newly Received Calves, D. Axe, M. Spire, Jack G. Riley Jan 1984

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.

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Comparison Of Compudose®, Ralgro® And Synovex-C® For Suckling Steer Calves, D.D. Simms, R. Schalles Jan 1984

Comparison Of Compudose®, Ralgro® And Synovex-C® For Suckling Steer Calves, D.D. Simms, R. Schalles

Kansas Agricultural Experiment Station Research Reports

The comparative growth-promoting value of Compudose, Ralgro, Ralgro + Ralgro reimplant, and Synovex-C + Synovex-C reimplant was evaluated on five Kansas ranches with 674 suckling steer calves in seven trials conducted during 1982 and 1983. The Ralgro + Ralgro reimplant program increased gain significantly (P<.05) over controls, with an average improvement of 3.9%. Either a single Ralgro or Compudose implant at branding increased gain about 2.6%. Implanting with Synovex-C produced 1% improvement in gain.

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Effect Of Lasalocid On The Sexual Development Of Beef Heifers, L. Corah, Jack G. Riley Jan 1984

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.

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Effect Of A Single Ralgro Implant On Conception Rates And Calving Difficulty In First Calf Beef Heifers, R.P. Bolze, L.R. Corah, R.J. Pruitt Jan 1984

Effect Of A Single Ralgro Implant On Conception Rates And Calving Difficulty In First Calf Beef Heifers, R.P. Bolze, L.R. Corah, R.J. Pruitt

Kansas Agricultural Experiment Station Research Reports

Three hundred and seventy four heifers from two Kansas ranches were used to determine if a single Ralgro implant given either at two months of age or at weaning would influence pelvic development and subsequent calving difficulty or conception rates. The study involved two hers of Simmental (spring and fall calving) and one herd of fall calving Angus cattle. Ralgro did not influence conception rates as yearlings, or percentages of heifers requiring assistance with their first calf. Implanted heifers had larger pelvic areas as yearlings, but the advantage disappeared by two years of age. Pelvic area in assisted vs unassisted …

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Silo Guard Ii® For Alfalfa, Corn, And Forage Sorghum Silages, K. Bolsen, H. Ilg, M. Hinds Jan 1984

Silo Guard Ii® For Alfalfa, Corn, And Forage Sorghum Silages, K. Bolsen, H. Ilg, M. Hinds

Kansas Agricultural Experiment Station Research Reports

In the first trial, calves fed Silo Guard II®-treated forage sorghum silage were 4.2% more efficient than those fed the control silage. Silo Guard II reduced the amount of heat produced during the ensiling process, and increased the dry matter recovered from the silo by nearly 7 percentage units (84.1 vs. 77.2%). The more efficient gain and reduced shrink loss for the treated silage gave 8.3% extra pounds of calf gain per ton of crop ensiled when compared with the control silage. In the second trial, laboratory silos were used to evaluate three levels of Silo Guard II (.5, 1.0, …

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Sodium Bicarbonate And Feed Flavor Supplements For Calves Fed Forage Sorghum Silage, K. Bolsen, D. Axe Jan 1984

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.

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The Weather In 1982 And 1983, L. Dean Bark Jan 1984

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. …

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Performance And Profitability Of Calves And Yearlings In Southeast Kansas Steer Futurities (Seven Year Summary), C. Lambert, F. Brazle, L. Corah, R. Schalles Jan 1984

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.

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Effects Of Low Voltage Electrical Stimulation During Bleeding On Characteristics Of Beef Loin Eye Top Round Muscles, Donald H. Kropf, Melvin C. Hunt, John A. Unruh, Curtis L. Kastner, Michael E. Dikeman Jan 1984

Effects Of Low Voltage Electrical Stimulation During Bleeding On Characteristics Of Beef Loin Eye Top Round Muscles, Donald H. Kropf, Melvin C. Hunt, John A. Unruh, Curtis L. Kastner, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Low voltage electrical stimulation (ES) during bleeding and subsequent carcass chilling at 36 to 46° F resulted in 1) a more rapid pH decline 2) initial lighter red color, but more rapid discoloration during display 3) softer and coarser textured lean 4) reduced water holding capacity and juiciness and 5) decreased tenderness of the loin eye longissimus (LE) muscle when compared to the non-stimulated control (C) LE muscle. ES effects on top round semimembranosus (TR) muscle were limited to a more rapid pH decline and lower water holding capacity. Our results indicate that ES soon after slaughter, coupled with relatively …

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