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Kansas Agricultural Experiment Station Research Reports

Animal Sciences

1984

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Articles 1 - 30 of 74

Full-Text Articles in Life Sciences

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 Jan 1984

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.

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Feeding Bulls-A Practical Evaluation, D. Simms, L. Corah, Gerry L. Kuhl, R. Schalles Jan 1984

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

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Comparison Of Synovex-S And Steer-Oid Implants For Feedlot Steers, B. Lee, S. Laudert Jan 1984

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.

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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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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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Culbac® And Add-F® (Formic Acid) Additives For Sudangrass And High Moisture Shelled Corn Silages, K. Bolsen, M. Hinds, H. Ilg Jan 1984

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.

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Comparison Of Compudose With Ralgro Or Synovex-S Reimplant Programs For Finishing Steers, S.B. Laudert, G.V. Jr. Davis Jan 1984

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.

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Relationship Of Cow Weight, Cow Condition And Dosage Of Prostaglandin On Synchronized Heat, D. Simms, L. Corah Jan 1984

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.

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Efficacy Of Ectrin® (Fenvalerate) For Sarcoptic Mange Control In Swine (1984), E L. Wooten, A B. Broce, D S. Pollmann Jan 1984

Efficacy Of Ectrin® (Fenvalerate) For Sarcoptic Mange Control In Swine (1984), E L. Wooten, A B. Broce, D S. Pollmann

Kansas Agricultural Experiment Station Research Reports

A trial was conducted to determine the efficacy of fenvalerate (Ectrin®) for control of sarcoptic mange mites in swine. Artificially infested pigs were treated with two sprayings of Ectrin at 0.05% concentration with 1 wk interval between sprayings. One week after the first spraying, mite numbers and clinical signs of mange had decreased in treated animals but remained elevated in infested-nontreated pigs. Four weeks after the first spraying (3 wk after the second spraying), no mites were found in scrapings from the Ectrin-treated pigs and the amount of scratching and rubbing in those pigs decreased compared with the infested- nontreated …

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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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Cellular Immune Responses In Artificially Reared Pigs (1984), Frank Blecha, D S. Pollmann, E F. Kluber Iii Jan 1984

Cellular Immune Responses In Artificially Reared Pigs (1984), Frank Blecha, D S. Pollmann, E F. Kluber Iii

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to determine the influence of artificial rearing on the cellular immune response of young pigs. Artificially reared pigs had lower cellular immune reactivity than sow-reared controls. These results indicate that artificial rearing may result in immunosuppression in young pigs.; Swine Day, Manhattan, KS, November 15, 1984

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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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Limiting Amino Acids In Sorghum Grain Protein For Adult Female Swine (1984), A J. Thulin, G L. Allee, D S. Pollman Jan 1984

Limiting Amino Acids In Sorghum Grain Protein For Adult Female Swine (1984), A J. Thulin, G L. Allee, D S. Pollman

Kansas Agricultural Experiment Station Research Reports

Two 4 x 4 Latin square designs were used with 16 gilts at 10 mo of age and weighing 341 lb (gravid) and 301 lb (nongravid) to determine the limiting nitrogenous factors in sorghum grain protein for adult gravid (70th day postcoitum) and nongravid swine. Supplementation of the fortified sorghum grain diet with lysine increased (P<.05) nitrogen retention in both nongravid and gravid gilts. A further addition of threonine also increased (P>.05) nitrogen retention in both nongravid and gravid gilts. However, addition of both lysine and threonine to the sorghum diet failed to result in nitrogen retention equal to that observed for the control diet. Percentage of nitrogen digested was higher (P<.05) for the control diet than for the basal diet or the two diets with lysine and threonine added. Blood urea nitrogen was reduced (P<.05) when lysine was added to the basal diet with an additional reduction when threonine also was added to the diet. However, the control diet caused higher blood urea values when compared to both supplemented diets. These results suggest that another amino acid may be limiting in the sorghum grain diet supplemented with both lysine and threonine. These data and other published data demonstrate that lysine and threonine are the first and second limiting amino acids in sorghum grain for adult gravid and nongravid swine.; Swine Day, Manhattan, KS, November 15, 1984

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Prostaglandin F2Α For Lactating Dairy Cows With Silent Estrus (1984), S.S. Plunkett, Jeffrey S. Stevenson, Edward P. Call Jan 1984

Prostaglandin F2Α For Lactating Dairy Cows With Silent Estrus (1984), S.S. Plunkett, Jeffrey S. Stevenson, Edward P. Call

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted in 17 dairy herds in NE Kansas to determine the effectiveness of prostaglandin F2α(PGF) for reducing intervals to conception for cows with silent or unobserved estrus. Cows that failed to be seen in heat so they could be inseminated after calving (Exp. 1) and cows that did not return to estrus after AI and were not pregnant when presented to veterinarian for pregnancy examination (Exp. 2) were assigned alternately to be given PGF or to receive no treatment after detection of a palpable corpus luteum. Cows were inseminated at 72 and 96 hr after PGF treatment …

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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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Kansas Steer Futurities - The Record On Retained Ownership 1974-1983, C. Lambert, D. Simms, B. Schalles, L. Corah, Gerry L. Kuhl, M. Sands Jan 1984

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 …

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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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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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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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Single Vs. Reimplant Programs For Finishing Steers, Jack G. Riley, Ronald V. Pope Jan 1984

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

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Urea And Fermentrol® Additives For Forage Sorghum Silage, B. Janicki, K. Bolsen, M. Hinds, H. Ilg Jan 1984

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.

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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 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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Effects Of Compudose® Implants On Performance Carcass, Meat Quality Traits And Serum Testosterone In Young Boars (1984), T Timmis, Michael E. Dikeman, Melvin C. Hunt, G Highfill, Jeffrey S. Stevenson, Robert H. Hines Jan 1984

Effects Of Compudose® Implants On Performance Carcass, Meat Quality Traits And Serum Testosterone In Young Boars (1984), T Timmis, Michael E. Dikeman, Melvin C. Hunt, G Highfill, Jeffrey S. Stevenson, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

Implanting boar pigs at 100 lb with 24 mg of Compudose 200® (estradiol 17β) had no significant effect on "boar odor" in meat, rate of gain, feed efficiency, carcass leanness or meat quality traits. The presence of a 7 to 8 mo old gilt in the pen decreased rate of growth in both control and implanted boars, but contrary to our expectations did not increase the incidence of "boar odor".; Swine Day, Manhattan, KS, November 15, 1984

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Comparison Of Feeding Systems For Finishing Swine (1984), J Vargas Vargas, Robert H. Hines Jan 1984

Comparison Of Feeding Systems For Finishing Swine (1984), J Vargas Vargas, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

Two feeding trials using 240 finishing pigs were conducted to evaluate meal feeding and ad libitum dry and wet feeding. Growth rate was significantly improved by wet feeding in trial 1. Overall, a 5% improvement in growth rate occurred by wet feeding in both trials when compared with meal-feeding or ad libitum dry feeding. Feed efficiency was similar for pigs fed meals, and ad libitum dry or wet diets.; Swine Day, Manhattan, KS, November 15, 1984

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

Lecithin Addition To Starter Pig Diets With And Without Added Fat And Whey (1984), D M. 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 whey thus making lecithin a possible fat substitute should, it be economically feasible.; 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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Successful Induction Of Estrus During Lactation For Sows Separated From Their Litters (1984), Jeffrey S. Stevenson, Duane L. Davis Jan 1984

Successful Induction Of Estrus During Lactation For Sows Separated From Their Litters (1984), Jeffrey S. Stevenson, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

Our objective was to determine the effectiveness of inducing estrus during lactation by temporarily separating the litter from the sow during the last week of lactation. Lactating sows were removed daily from their litters for either 1) 3 hr /day (n=20), 2) 6 hr /day (n=39), or 3) 12 hr /day (n=10) during the last 8 days of lactation and exposed to an intact boar for at least 1 hr during the separation period. Litters were weaned from control sows at either 2 (n=13) or 4 (n=15) weeks for comparison of intervals to estrus following complete weaning or temporary separation. …

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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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