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Animal Sciences

Kansas State University Libraries

Kansas Agricultural Experiment Station Research Reports

1984

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Articles 31 - 60 of 74

Full-Text Articles in Life Sciences

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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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 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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Comparison Of Compudose, Ralgro And Synovex-S Implants For Growing Steer Calves, D. Simm, Gerry L. Kuhl, R. Schalles Jan 1984

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.

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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 Jan 1984

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 …

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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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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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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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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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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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Effect Of Ammonia Level And Treatment Temperature On Intake And Digestibility Of Wheat Straw By Lambs, A. Laytimi, K. Bolsen, B. Janicki Jan 1984

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 …

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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 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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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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Evaluation Of An Early Weaning Program For Dairy Calves (1984), J.L. Morrill, M.K. Schmidt, A.J. Cullen, M.B. Morrill Jan 1984

Evaluation Of An Early Weaning Program For Dairy Calves (1984), J.L. Morrill, M.K. Schmidt, A.J. Cullen, M.B. Morrill

Kansas Agricultural Experiment Station Research Reports

One experiment was conducted to compare an early weaning program, using a prestarter , when calves were weaned at 2 or 3 wk of age with programs using conventional feeds and weaning at 3 or 6 wk of age. Daily gains to 8 wk of age were 1.19 and 1.03 pound for calves fed a commercial starter and weaned at 6 and 3 weeks of age, respectively; and were 1.1 and .97 for calves on the early weaning program and weaned at 3 and 2 wk of age, respectively. Another experiment was conducted to test one variation of the early …

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Immunoglobulin Concentrations In Serum And Nasal Secretions Of Calves At The Onset Of Pneumonia (1984), L.B. Corbeil, B. Watt, R.R. Corbeil, T.G. Betzen Jan 1984

Immunoglobulin Concentrations In Serum And Nasal Secretions Of Calves At The Onset Of Pneumonia (1984), L.B. Corbeil, B. Watt, R.R. Corbeil, T.G. Betzen

Kansas Agricultural Experiment Station Research Reports

Immunoglobulin (Ig) concentrations in serurn and in nasal secretions were correlated with pneumonia and diarrhea during the first 12 wk of life of dairy calves. The peak onset of pneumonia occurred between 2 and 4 wk of age when the calves' serum Ig G1, Ig G2 and IgA concentrations were lowest. As IgG2 concentrations increased, fewer calves developed pneumonia. Peak onset of pneumonia was also correlated with the lowest IgG and IgA concentrations in the calves' nasal secretions. Diarrhea often preceded pneumonia.; Dairy Day, 1984, Kansas State University, Manhattan, KS, 1984;

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Gonadotropin-Releasing Hormone And Conception Of Holstein Cows (1984), Jeffrey S. Stevenson, M.K. Schmidt, Edward P. Call Jan 1984

Gonadotropin-Releasing Hormone And Conception Of Holstein Cows (1984), Jeffrey S. Stevenson, M.K. Schmidt, Edward P. Call

Kansas Agricultural Experiment Station Research Reports

To study the effects of gonadotropin-releasing hormone (GnRH) and timing of artificial insemination (Al) on fertility, 328 dairy cows were divided into four groups. Inseminations at first, second, or third service were done soon after detected estrus (0 hr) or 12 h later. One-half of the cows in each of the preceding groups received GnRH (100µg) or saline within 30 sec after AI. Conception at first service was not improved by GnRH. But conception rates at repeat services were improved by 21% when cows received GnRH after AI. Time of AI (0 vs 12 hr) had no effect on conception. …

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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 Supplemental Vitamin E On The Performance, Metabolic Profiles, And Immune Responses Of Dairy Calves (1984), P.G. Reddy, J.L. Morrill, H.C. Minocha, M.B. Morrill Jan 1984

Effect Of Supplemental Vitamin E On The Performance, Metabolic Profiles, And Immune Responses Of Dairy Calves (1984), P.G. Reddy, J.L. Morrill, H.C. Minocha, M.B. Morrill

Kansas Agricultural Experiment Station Research Reports

Forty-six Holstein heifer calves were used from birth to 3 rno to study the effect of supplemental vitamin E at 1400 or 2800 mg dl-a.-tocopherol acetate given orally at weekly intervals or 1400 mg dl-a-tocopherol by intramuscular injection. Weekly starter consumption was 10 to 27 % more (P=.12) and weekly weight gains were 9 to 25% more (P=.13) in supplemented calves. Creatine phosphokinase activity was negatively correlated with serurn tocopherol concentrations, indicating a subclinical muscular dystrophy in unsupplemented calves. Lymphocyte stimulation indices were positively correlated with serum tocopherol concentration. Calves given high level of oral supplementation had higher IgM antibody …

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Factors Affecting Estrus And Fertility Of Holstein Heifers After Prostaglandin F2Α (1984), Jeffrey S. Stevenson, M.K. Schmidt, Edward P. Call Jan 1984

Factors Affecting Estrus And Fertility Of Holstein Heifers After Prostaglandin F2Α (1984), Jeffrey S. Stevenson, M.K. Schmidt, Edward P. Call

Kansas Agricultural Experiment Station Research Reports

Stage of the estrous cycle, time of insemination, and season of the year were examined for their influence on estrus and fertility of 223 Holstein heifers after prostaglandin F2α(PGF). Heifers given PGF early in the estrous cycle (days 5 to 8 where estrus = day 0) had shorter intervals (by 11 hr) to heat than heifers given PGF later in the cycle (days 14 to 16). Heats also were more closely synchronized for heifers treated early in the cycle. Season of the year had no effects on the interval to estrus or on proportion of heifers observed in heat. Conception …

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Effect Of Niacin Supplementation On Milk Production And Ketosis Of Dairy Cattle (1984), G. Dufva, E. Bartley, A. Dayton, D. Riddell Jan 1984

Effect Of Niacin Supplementation On Milk Production And Ketosis Of Dairy Cattle (1984), G. Dufva, E. Bartley, A. Dayton, D. Riddell

Kansas Agricultural Experiment Station Research Reports

Two lactation trials were undertaken to evaluate the effect of a niacin supplement on milk production and 'the physiological symptoms of ketosis. Blood ketone and non-esterified fatty acid levels were lower and blood glucose concentrations higher in niacin-supplemented cows. These trends were exhibited regardless of whether supplementation began 2 wk prepartum or immediately after calving. A 6 g daily dose was found to be of equal or higher benefit than a 12 g supplement. Cows gi ven niacin consistently produced more milk than controls, though the difference was small.; Dairy Day, 1984, Kansas State University, Manhattan, KS, 1984;

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Relationship Between Production And Reproduction In 5,480 Holstein Herds Enrolled In The Midstates Processing Center (1984), Edward P. Call, Jeffrey S. Stevenson Jan 1984

Relationship Between Production And Reproduction In 5,480 Holstein Herds Enrolled In The Midstates Processing Center (1984), Edward P. Call, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Reproductive parameters were evaluated in 5,480 Holstein herds involving 335,673 cows to determine the reported negative genetic effect of production on reproduction. While higher producing herds had a slight decline in days to first bred, this effect was offset by a similar increase in services per conception. The greatest effect was seen in the percent of cows open and the average days open. It was concluded that managers of higher producing herds are more aware of the need to get cows bred back after calving and implement the necessary practices to minimize the percent of cows not yet serviced and …

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Effects Of Various Feeding, Breeding And Management Practices On Milk Production (1984), James R. Dunham Jan 1984

Effects Of Various Feeding, Breeding And Management Practices On Milk Production (1984), James R. Dunham

Kansas Agricultural Experiment Station Research Reports

The March 1984 DHI summary of Kansas Holstein herds shows some interesting correlations of various feeding, breeding, and management factors to production (Table 1). The Rolling Herd Average (RBA) is an excellent evaluation of the efficiency of dairy herds since RHA and income-over-feed-cost are closely related. Although income-over-feed-cost is not profit, it provides the income for paying the other costs of producing milk. The goal of every dairy producer should be to increase the RHA in order to improve profitability.; Dairy Day, 1984, Kansas State University, Manhattan, KS, 1984;

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Development Of An Early Weaning Program For Dairy Calves (1984), J.L. Morrill, A.D. Dayton, A.J. Zmolek, M.A. Vitcenda Jan 1984

Development Of An Early Weaning Program For Dairy Calves (1984), J.L. Morrill, A.D. Dayton, A.J. Zmolek, M.A. Vitcenda

Kansas Agricultural Experiment Station Research Reports

After preliminary experiments, four trials were conducted to develop and test a new feeding program for calves. The program involves the use of a special feed (a prestarter) to encourage calves to eat dry feed and to provide high quality nutrients during the time of initial rumen development. Using this plan, calves were weaned at 2 weeks of age with good results.; Dairy Day, 1984, Kansas State University, Manhattan, KS, 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 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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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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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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