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Causes Of Diarrhea, Pneumonia, And Abortion In 1991 Cattle Submissions To The Ksu Veterinary Diagnostic Laboratory (1992), R.K. Frank, M.W. Vorhies, M. M. Chengappa
Causes Of Diarrhea, Pneumonia, And Abortion In 1991 Cattle Submissions To The Ksu Veterinary Diagnostic Laboratory (1992), R.K. Frank, M.W. Vorhies, M. M. Chengappa
Kansas Agricultural Experiment Station Research Reports
Causes of diarrhea, pneumonia, and abortion in Kansas cattle submissions to the Kansas State University Veterinary Diagnostic Laboratory during 1991 were summarized. Antimicrobial susceptibility results for Pasteurella haemolytica, Pasteurella multocida, Hemophilus somnus, and Salmonella spp., the common causes of pneumonia and/or diarrhea in cattle with increasing antibiotic resistance patterns, were also summarized. The most commonly diagnosed causes of diarrhea in young calves (under 1 month of age) were coronavirus, Escherichia coli, and Salmonella. The three most common causes of diarrhea in 1 to 18 month-old cattle were BVD virus, coccidia, and Salmonella. Most respiratory submissions were 7- to 18-month-old cattle. …
Production And Marketing Factors Influencing Fed Cattle Prices (1992), J. Mintert, R. Jones, F. Brazle, Ted C. Schroeder
Production And Marketing Factors Influencing Fed Cattle Prices (1992), J. Mintert, R. Jones, F. Brazle, Ted C. Schroeder
Kansas Agricultural Experiment Station Research Reports
An analysis of more than 1400 pens of cattle marketed during 1990 examined the influence of several cattle traits and marketing factors on fed cattle prices. Cattle quality grade had an important impact on packer bids and feedyard asking prices. However, both feedyard asking and packer purchase prices reflected less than 25%, on average, of estimated wholesale value differentials. Other factors, including estimated dressing percentage, finish uniformity, cattle weight, number of head purchased, presence of heiferettes, and cattle type had significant price impacts. Feedyards generally received what they asked for cattle; 65% of the pens sold for their asking prices. …
Effect Of 1174® Silage Inoculant On The Fermentation Of Corn Silages (1992), K.K. Bolsen, C. Lin, B.E. Brent, J.E. Bradford, A.M. Feyerherm
Effect Of 1174® Silage Inoculant On The Fermentation Of Corn Silages (1992), K.K. Bolsen, C. Lin, B.E. Brent, J.E. Bradford, A.M. Feyerherm
Kansas Agricultural Experiment Station Research Reports
The effect of 1174® Silage Inoculant on the ensiling process was studied using three Pioneer corn hybrids. All hybrids fermented rapidly, and 1174 did not significantly influence any of the fermentation characteristics during the 120 days. The epiphytic lactic acid bacteria (LAB) counts on the chopped corn plants were high; 14 times greater than the numbers of LAB provided by the inoculant. Although during fermentation, statistically significant differences occurred among the hybrids for fermentation end-products, no observed trends suggested that hybrid effects were real.
Effects Of Biomate® Inoculant And Dextrose On The Fermentation Of Alfalfa Silages (1992), C. Lin, K.K. Bolsen, J.E. Bradford, B.E. Brent, A.M. Feyerherm, W.R. Aimutis
Effects Of Biomate® Inoculant And Dextrose On The Fermentation Of Alfalfa Silages (1992), C. Lin, K.K. Bolsen, J.E. Bradford, B.E. Brent, A.M. Feyerherm, W.R. Aimutis
Kansas Agricultural Experiment Station Research Reports
This study documented once again that ensiling alfalfa is difficult and unpredictable. Adding 2% dextrose or Biomate® inoculant alone or in combination had little influence on the ensiling process but did improve fermentation efficiency somewhat. The pre-ensiling characteristics (i.e., dry matter (DM) and water soluble carbohydrate (WSC) values, buffering capacity, and epiphytic microflora) at the different cuttings and stages of maturity undoubtedly influenced the effectiveness of the two additives. Apparently, alfalfa often has too little WSC and too much buffering capacity to produce adequately preserved silage, especially when ensiled at a low DM content (less than 30 to 34%).
The Effects Of Slow-Release Copper Boluses On Cow Reproductive Performance And Calf Growth (1992), J.D. Arthington, Robert L. Larson, L.R. Corah
The Effects Of Slow-Release Copper Boluses On Cow Reproductive Performance And Calf Growth (1992), J.D. Arthington, Robert L. Larson, L.R. Corah
Kansas Agricultural Experiment Station Research Reports
Two Kansas cow/calf herds known to be copper deficient were utilized to examine the effect of slow-release copper boluses. In herd I, 34 spring-calving cows and calves were divided into a treated and control group at 3-4 months following calving. In herd II, 1106 fall-calving cows and 172 calves were divided into a treated and control group at 3-4 months following calving. In both herds, cow liver and serum samples were collected and assayed for copper and iron. Cows in herd II were also examined for various reproductive parameters. Calf ADG was monitored over a 42-day treatment period in herd …
Performance And Carcass Characteristics Of Cull Beef Cows Implanted With Growth Promotants And Fed A High Concentrate Ration (1992), C.D. Cranwell, D.D. Simms, J.R. Brethour, John A. Unruh
Performance And Carcass Characteristics Of Cull Beef Cows Implanted With Growth Promotants And Fed A High Concentrate Ration (1992), C.D. Cranwell, D.D. Simms, J.R. Brethour, John A. Unruh
Kansas Agricultural Experiment Station Research Reports
Open, cull beef cows fed a high concentrate ration for 28 or 56 days and implanted with Finaplix-H®, Synovex-H®, or both had improved gain and feed efficiency compared to controls (nonimplanted cows). Changes in ultrasound-measured backfat (12th rib) of implanted cows and controls were similar in both feeding periods. Marbling, fat color, and tenderness, as measured by Warner-Bratzler shear force, were not improved by feeding cows for 56 days compared to 28 days. However, lean color, dressing percent, and ribeye area were improved by feeding for 56 days. Numerical yield grade was lower (P<.05) in 28-day fed cows. Implanting with Synovex-H or Finaplix-H resulted in leaner carcasses with lower yield grades compared to controls. Ribeye area was increased by using Synovex-H compared to controls and Finaplix- H. These data indicate that the benefits in gain, feed efficiency, and carcass traits from implanting cull cows can be obtained by using either Synovex-H or Finaplix-H alone.
Evaluation Of 20 Corn Hybrids For Silage Agronomic Characteristics (1992), R.N. Sonon, B.S. Dalke, R. Suazo, L. Pfaff, K.K. Bolsen
Evaluation Of 20 Corn Hybrids For Silage Agronomic Characteristics (1992), R.N. Sonon, B.S. Dalke, R. Suazo, L. Pfaff, K.K. Bolsen
Kansas Agricultural Experiment Station Research Reports
Twenty corn hybrids were grown under irrigation and harvested at 90 % of the kernel milk line. Hybrid had a significant effect on plant height, whole-plant dry matter (DM) and DM yield, grain yield, stover yield, and plant part proportions. The highest whole-plant DM (45.9%) was for Cargill 7997, whereas the lowest was for Cargill 4327 (30.1%). Cargill 8427 and Pioneer 3245 had the highest wholeplant DM and grain yields, whereas Cargill 4327 was lowest. Grain yield and the percentage of grain in the whole-plant DM increased as the plant height increased.
Effects Of Source And Level Of Energy Or Protein Supplementation On Nitrate Toxicity In Cattle (1992), M.W. Smith, M.R. Blanding, L.R. Corah, Dale A. Blasi
Effects Of Source And Level Of Energy Or Protein Supplementation On Nitrate Toxicity In Cattle (1992), M.W. Smith, M.R. Blanding, L.R. Corah, Dale A. Blasi
Kansas Agricultural Experiment Station Research Reports
Two experiments were conducted to investigate whether level or source of energy and protein supplementation would reduce the incidence or severity of clinical toxicity in cattle fed forages high in nitrate (NO3). Heavily fertilized sudan hay with 40,000 to 50,000 ppm NO3 was fed in both experiments. The percentage of total blood hemoglobin converted to methemoglobin by nitrate was used to compare treatment effectiveness. Energy supplementation at levels tested in Exp. 1 had no effect on methemoglobin concentration. In Exp. 2, all protein sources (wheat midds, urea, soybean meal) reduced the maximum methemoglobin levels and increased the rate of reconversion …
Comparison Of Feeding Calves Vs. Yearlings (1992), D.T. Hickok, R.R. Schalles, D.E. Franke, Michael E. Dikeman
Comparison Of Feeding Calves Vs. Yearlings (1992), D.T. Hickok, R.R. Schalles, D.E. Franke, Michael E. Dikeman
Kansas Agricultural Experiment Station Research Reports
Data from the 207 crossbred steers used in this study indicate that when calves are placed in the feedlot on a finishing ration at weaning, they will have better feed efficiencies, greater lifetime ADGs, lighter carcass weights, and equal carcass qualities compared to those placed as yearlings. In recent times, heavy carcass weights have been rather common in the industry. Every over-weight steer had a desirable weight at one time, and this study shows that they would have produced a desirable carcass if managed correctly.
Effect Of Castration Method On Stocker Health And Gain (1992), F.K. Brazle
Effect Of Castration Method On Stocker Health And Gain (1992), F.K. Brazle
Kansas Agricultural Experiment Station Research Reports
Two field trials were conducted to compare two different band-castration techniques with surgical castration of calves and yearlings. In Trial I, the bull calves were surgically castrated or banded with Elastrator® rubber rings and compared with calves purchased as steers. Purchased steers gained faster (P<.05) during the 33-day receiving trial than bulls castrated by either method, but no difference was observed in percentage of sick calves. In Trial II, yearling bulls were surgically castrated or banded with the EZE® Bloodless Castrator device. Yearlings purchased as steers gained faster (P<.05) than EZE-castrated bulls during the 110-day trial. Bulls castrated by either method required more medications (P<.07) than steers. In both trials, there was no advantage to banding compared with surgical castration of bulls in terms of gain or health.
Heritabilities And Genetic Correlations Of Ultrasound-Measured Ribeye Area With Other Performance Traits In Brangus Cattle (1992), M.Z. Johnson, R.R. Schalles, W. Olson, Michael E. Dikeman
Heritabilities And Genetic Correlations Of Ultrasound-Measured Ribeye Area With Other Performance Traits In Brangus Cattle (1992), M.Z. Johnson, R.R. Schalles, W. Olson, Michael E. Dikeman
Kansas Agricultural Experiment Station Research Reports
Heritabilities and genetic correlations for ultrasound-measured ribeye area and fat thickness, as well as growth traits and scrotal circumference, were determined using performance records of 1613 Brangus calves born from 1987 to 1990. Moderate heritabilities of .39 for weaning and .40 for yearling ultrasound- measured ribeye area indicate that selection to change these traits should be effective. The positive, and generally large, genetic correlations between ultrasound-measured ribeye areas and growth traits indicate that genetic change of these traits can be made in tandem. The low heritability (.14) of fat thickness, the small amount of fat, and the lack of variation …
Influence Of Level Of Supplemental Alfalfa Hay On The Performance Of Beef Cows Grazing Winter Bluestem Range (1992), E.S. Vanzant, R.C. Cochran
Influence Of Level Of Supplemental Alfalfa Hay On The Performance Of Beef Cows Grazing Winter Bluestem Range (1992), E.S. Vanzant, R.C. Cochran
Kansas Agricultural Experiment Station Research Reports
One hundred thirteen pregnant Hereford x Angus cows were used to study the effect of increasing levels of supplemental alfalfa hay on performance when grazing winter bluestem range. Although no differences were observed in reproductive performance, increasing the amount supplemental alfalfa from approximately .5% up to 1.0% of body weight resulted in increased weight gain and reduced condition loss in cows and increased weaning weight in calves. However, time spent grazing was significantly decreased in those groups receiving larger amounts of supplemental alfalfa.
Short-Run Impact Of Captive Supplies On Fed Cattle Prices (1992), J. Mintert, R. Jones, F. Brazle, Ted C. Schroeder
Short-Run Impact Of Captive Supplies On Fed Cattle Prices (1992), J. Mintert, R. Jones, F. Brazle, Ted C. Schroeder
Kansas Agricultural Experiment Station Research Reports
Factors affecting western Kansas fed cattle prices during May through November 1990 were investigated. In particular, the impact of changes in captive cattle supplies on cash prices was examined. The term captive cattle supplies refers to cattle procured by a packer well in advance of slaughter. Captive supplies take one of three forms: 1) packer-owned cattle, 2) cattle procured on forward contracts, and 3) cattle procured under formula price (or marketing) agreements. Captive supplies were defined as cattle procured under forward contracts or formula price agreements, because data on packer-owned cattle were unavailable. Over the May through November 1990 period …
Influence Of Fat And Monensin Levels On Performance Of Finishing Steers (1992), Robert T. Brandt Jr., Ronald V. Pope
Influence Of Fat And Monensin Levels On Performance Of Finishing Steers (1992), Robert T. Brandt Jr., Ronald V. Pope
Kansas Agricultural Experiment Station Research Reports
To evaluate effects and potential interaction of supplemental fat (0 to 4% tallow) and monensin (0, 20, 40 g/ton) in a corn-based finishing diet, 96 Continental crossbred steers (860 lb) were used in a 2x3 factorially arranged randomized complete block design. Consumption by steers fed the 0% fat diet decreased linearly (P<.0001) with increased monensin level, whereas consumption by steers fed 4% fat diets decreased curvilinearly (P<.08), indicating that monensin depressed intake much less when the diet contained fat. Daily gain decreased linearly (P<.02) with increased monensin level for steers fed no supplemental fat, but remained constant in steers fed 4% fat. Feed efficiency was improved (P<.025) by 4% fat across levels of monensin. This study provides further evidence of interactions between monensin and supplemental fat in effects on animal performance.
Effect Of Deworming With Ivomec® On Reproductive Performance Of Yearling Beef Heifers (1992), Robert L. Larson, L.R. Corah, M.F. Spire, R.C. Cochran
Effect Of Deworming With Ivomec® On Reproductive Performance Of Yearling Beef Heifers (1992), Robert L. Larson, L.R. Corah, M.F. Spire, R.C. Cochran
Kansas Agricultural Experiment Station Research Reports
To determine the effect of deworming fallborn yearling heifers on reproductive parameters, 78 heifers were allotted to a either Ivomec® or control treatments. The heifers were dewormed in June and October when they were approximately 7 and 11 months old, respectively. Ivomec effectively lowered fecal egg counts from treated heifers compared to controls. In these heifers that were maintained on a marginal plane of nutrition, deworming not only improved weight gains but also hastened onset of puberty and improved conception rate during a 60-day breeding season. The positive effect of Ivomec on these reproductive characteristics could not be explained by …
Effect Of Physical Form And Level Of Alfalfa In Corn-Based Diets For Finishing Steers (1992), Robert T. Brandt Jr., Ronald V. Pope
Effect Of Physical Form And Level Of Alfalfa In Corn-Based Diets For Finishing Steers (1992), Robert T. Brandt Jr., Ronald V. Pope
Kansas Agricultural Experiment Station Research Reports
One hundred-eighty British crossbred steers (760 lb) were used in a 3x2 factorially arranged experiment to evaluate the main effects of alfalfa form (chopped hay, dehydrated pellets, or a 50:50 mixture of hay:dehy) and level (5 or 10% of diet DM) on finishing steer performance. Alfalfa (third-cutting, 23.9% CP) was harvested in alternate rows from a common field. No interactions between alfalfa form and level were detected. Steers fed chopped hay or the 50:50 mixture gained faster (P<.05), consumed more feed (P<.05), and had heavier final and carcass weights (P<.05) than steers fed dehy pellets. Steers fed 10% alfalfa gained faster (P<.05), consumed more feed (P<.0003), and had heavier carcass weights (P<.02) vs those fed 5% alfalfa. Feed efficiency was unaffected by alfalfa form or level. Lower feed intakes and numerically higher incidences of liver abscesses indicated less ruminal tactile stimulation and more subacute acidosis for dehy pellets vs hay or the 50:50 mixture and for 5 vs 10% alfalfa, respectively. Positive associative responses of 5.1% (P = .07) on daily gain and 2.9% (P = .11) on dry matter intake suggested that the 50:50 mixture provided enough long particles for adequate rumen function at the alfalfa levels studied. Our results suggests more dehy pellets than chopped hay must be fed to provide similar roughage value.
Influence Of Limited Creep Feeding On Pre- And Post-Weaning Performance Of Spring Born Calves (1992), F.K. Brazle, Gerry L. Kuhl, C.E. Binns, K.O. Zoellner, L.R. Corah, R.R. Schalles
Influence Of Limited Creep Feeding On Pre- And Post-Weaning Performance Of Spring Born Calves (1992), F.K. Brazle, Gerry L. Kuhl, C.E. Binns, K.O. Zoellner, L.R. Corah, R.R. Schalles
Kansas Agricultural Experiment Station Research Reports
Spring-born suckling beef calves were offered salt-limited creep feeds containing either high protein, high energy, or energy plus Bovatec® from August 15 to October 15 in a 3- year study. Creep feeding improved (P<.01) daily gain over controls, but no differences were attributable to creep composition. Daily creep feed consumption was somewhat less for the protein fed group, resulting in improved feed conversion compared to the energy-based supplement, with the energy plus Bovatec creep feed intermediate in efficiency. Creep feeding improved 53-day postweaning gains (P<.01). Overall, limited creep feeding boosted both pre- and postweaning performance, with no difference in gain among the three types of creep rations studied.
Effect Of Long-Acting Penicillin And Levamisole® On Gain And Health Of Stressed Calves (1992), F.K. Brazle
Effect Of Long-Acting Penicillin And Levamisole® On Gain And Health Of Stressed Calves (1992), F.K. Brazle
Kansas Agricultural Experiment Station Research Reports
Two studies were conducted to determine the effect of long-acting penicillin and/or levamisole injected at arrival or levamisole injected on day 1 and/or day 7 on the health and gain of newly received, highly stressed, light weight calves. Levamisole injected at arrival reduced (P<.05) sickness of newly arrived calves during the first 5 days. However, it did not reduce overall sickness during the receiving period. Long-acting penicillin injected at arrival did not reduce sickness, but did improve (P<.05) gain of calves during the growing period. The combination of levamisole and long-acting penicillin or the combination of levamisole on day 1 and day 7 did not reduce morbidity in these highly stressed calves.
Effect Of Feed Additives On Shipping Shrinkage Of Yearling Heifers (1992), F.K. Brazle
Effect Of Feed Additives On Shipping Shrinkage Of Yearling Heifers (1992), F.K. Brazle
Kansas Agricultural Experiment Station Research Reports
Two studies were conducted to determine the effect of feed additives on the transit shrink of yearling cattle. In Trial I, 146 mixed-breed heifers were offered a mineral mixture containing either Terramycin® or Bovatec®, or without additive while grazing native grass pastures. Shrinkage after 300 miles in transit was lower (P.05). The small shrinkage differences observed in these two trials would not justify changes in the weighing practices of feeder cattle.
Evaluation Of Inoculant And Npn Silage Additives: A Summary Of 26 Trials And 65 Farm-Scale Silages (1992), K.K. Bolsen, R.N. Sonon, B. Dalke, Ronald V. Pope, Jack G. Riley, A. Laytimi
Evaluation Of Inoculant And Npn Silage Additives: A Summary Of 26 Trials And 65 Farm-Scale Silages (1992), K.K. Bolsen, R.N. Sonon, B. Dalke, Ronald V. Pope, Jack G. Riley, A. Laytimi
Kansas Agricultural Experiment Station Research Reports
Results from 26 trials comparing fermentation, dry matter (DM) recovery, and effects on cattle performance of inoculated or nonprotein nitrogen (NPN)-treated silages vs. controls were summarized using paired t-test analysis. Inoculants consistently improved fermentation efficiency, DM recovery, feed conversion, and gain per ton of crop ensiled in both corn and forage sorghum silages. The use of NPN, particularly urea or anhydrous ammonia, adversely affected fermentation efficiency, DM recovery, avg daily gain, and gain per ton of crop ensiled, particularly for the higher moisture forage sorghums.
Epiphytic Lactic Acid Bacteria Succession During The Pre-Ensiling And Ensiling Periods Of Alfalfa And Corn (1992), Chunjian Lin, B.E. Brent, K.K. Bolsen, Daniel Y.C. Fung
Epiphytic Lactic Acid Bacteria Succession During The Pre-Ensiling And Ensiling Periods Of Alfalfa And Corn (1992), Chunjian Lin, B.E. Brent, K.K. Bolsen, Daniel Y.C. Fung
Kansas Agricultural Experiment Station Research Reports
Twenty three species and 306 strains of epiphytic lactic acid bacteria (LAB) were found for two cuttings of alfalfa, each harvested at three stages of maturity, and three whole-plant corn hybrids. Epiphytic LAB counts were low and variable on the standing crops, particularly on alfalfa. Wilting increased LAB numbers slightly for alfalfa, but the chopping process increased counts dramatically for both crops. Lactobacillus plantarum, Pediococcus pentosaceus, Enterococcus faecium, and E. faecalis were predominant on both standing crops. The changes in LAB caused by wilting or chopping were mainly proportional changes in the four dominant species. Once the crops were ensiled, …
Interrelationship Between Copper And Bovine Health (1992), Robert L. Larson, J.D. Arthington, L.R. Corah
Interrelationship Between Copper And Bovine Health (1992), Robert L. Larson, J.D. Arthington, L.R. Corah
Kansas Agricultural Experiment Station Research Reports
Trace mineral nutrition is important to production efficiency and animal health. Trace mineral imbalances may be the roots of many diagnosed or undiagnosed problems in a herd. The low cost of a complete mineral analysis when compared to production losses encourages its use in the evaluation of any bovine herd in which trace mineral imbalances are suspected. A systematic gathering of information on mineral intake, antagonist intake, and serum and tissue values is necessary in order to make a diagnosis and a rational treatment decision. It is important to understand the complex interactions between minerals so that supplementation with one …
Evaluation Of Inoculant-Treated Corn Silages (1992), K.K. Bolsen, D.G. Tiemann, R.N. Sonon, R.A. Hart, B. Dalke, J.T. Dickerson, C. Lin
Evaluation Of Inoculant-Treated Corn Silages (1992), K.K. Bolsen, D.G. Tiemann, R.N. Sonon, R.A. Hart, B. Dalke, J.T. Dickerson, C. Lin
Kansas Agricultural Experiment Station Research Reports
Whole-plant corn silages treated with either Pioneer 1174® or Biotal® inoculants were preserved more efficiently than control silages. They had slightly higher dry matter (DM) recoveries; more lactic acid; higher lactic to acetic acid ratios; and less acetic acid, ethanol, and ammonia-nitrogen. Laboratory silo results showed that both inoculated silages produced lactic acid faster than control silages during the first 7 days and had more desirable fermentation profiles at the end of 90 days. Applying 5 or 10 times the recommended rate of Biotal inoculant had only a small and nonsignificant effect on rate and efficiency of fermentation. Yearling steers …
Comparison Of Feedlot And Carcass Characteristics Of Angus, Hereford, Brahman, Charolais, And Gelbvieh Crossbred Steers (1992), D.T. Hickok, R.R. Schalles, D.E. Franke, Michael E. Dikeman
Comparison Of Feedlot And Carcass Characteristics Of Angus, Hereford, Brahman, Charolais, And Gelbvieh Crossbred Steers (1992), D.T. Hickok, R.R. Schalles, D.E. Franke, Michael E. Dikeman
Kansas Agricultural Experiment Station Research Reports
Feedlot performance of 207 steers with various percentages of Angus, Hereford, Charolais, Brahman, and Gelbvieh breeding were compared at a constant 1) days fed, 2) adjusted carcass backfat, and 3) slaughter weight. As the percentage of Angus, Hereford, or Brahman increased, growth rate decreased, whereas increasing the percentage of Charolais increased growth rate. Increasing the percentage of Gelbvieh increased weaning weight but had little effect on post-weaning gains. Increasing percentage of Charolais increased feed conversion efficiency, whereas the other breeds were similar, except that at a constant slaughter weight, greater percentage of Hereford improved feed conversion efficiency. Increasing the percentage …
Evaluation Of Interseeded Grain Sorghum And Soybeans As A Silage Crop (1992), L.H. Harbers, K.K. Bolsen, H. Hartadi
Evaluation Of Interseeded Grain Sorghum And Soybeans As A Silage Crop (1992), L.H. Harbers, K.K. Bolsen, H. Hartadi
Kansas Agricultural Experiment Station Research Reports
Dry matter yield of grain sorghum alone averaged more than 1.0 ton per acre higher than that of intercropped grain sorghum-soybeans in both 1988 and 1989. All silage yields were lower in 1989 because of drought. Grain sorghum silage had less NDF and ADF, but intercropped silages had over 4 percentage units more crude protein. Digestibility coefficients for crude protein, NDF, and ADF tended to favor intercropped silages, but yearling steer performance favored grain sorghum silage. Studies over 4 years (1986 to 1989) suggest that intercropping might be more beneficial for dairy cattle producers than beef producers.
Rate And Extent Of Losses From Top Spoilage In Pilot-Scale, Horizontal Silos, J.T. Dickerson, K.K. Bolsen, B.E. Brent, C. Lin, John E. Boyer
Rate And Extent Of Losses From Top Spoilage In Pilot-Scale, Horizontal Silos, J.T. Dickerson, K.K. Bolsen, B.E. Brent, C. Lin, John E. Boyer
Kansas Agricultural Experiment Station Research Reports
Corn and forage sorghum silages were stored in pilot-scale silos for 180 days, and dry matter (DM) and organic matter (OM) recoveries and estimated OM recovery were measured at three depths within the top 3 ft. of silage. The unsealed silages deteriorated badly in the top 12 in. Actual DM and OM losses in the top 24 in. were higher in unsealed than sealed silages at each successive storage period (7 to 180 days). The unsealed silages began to deteriorate immediately in the top 12 in. in both crops, and deterioration progressed to the second 12 in. by 90 days …
Effects Of Interactions Between Aspergillus Oryzae Extract (Amaferm) And Antimicrobial Compounds On The Growth Of Ruminal Bacteria (1992), A.A. Beharka, Tiruvoor G. Nagaraja
Effects Of Interactions Between Aspergillus Oryzae Extract (Amaferm) And Antimicrobial Compounds On The Growth Of Ruminal Bacteria (1992), A.A. Beharka, Tiruvoor G. Nagaraja
Kansas Agricultural Experiment Station Research Reports
The effect of Amaferm, with or without antimicrobial compounds, was determined on the growth rate of pure cultures of predominant ruminal bacteria. Adding Amaferm to media containing chlortetracyline or neomycin tended to diminish the negative effects of those compounds on the growth rate of some ruminal bacteria, even when they had shown no positive response to Amaferm alone. However, adding Amaferm to media containing tylosin decreased the growth rate of Selenomonas ruminantium D. These results indicate that Amaferm interacts both positively and negatively with certain antimicrobial compounds.
Use Of Low-Level Grain Supplementation In An Intensive-Early Stocking Program: Influence On Daily Gain And Forage Production (1992), R.C. Cochran, E.S. Vanzant, Robert T. Brandt Jr., Clenton E. Owensby, Lisa M. Auen
Use Of Low-Level Grain Supplementation In An Intensive-Early Stocking Program: Influence On Daily Gain And Forage Production (1992), R.C. Cochran, E.S. Vanzant, Robert T. Brandt Jr., Clenton E. Owensby, Lisa M. Auen
Kansas Agricultural Experiment Station Research Reports
A 4-year experiment was conducted to evaluate the effect of increasing amounts of grain supplementation on steer gains and forage production in pastures managed under an intensive-early stocking system. Average daily gain tended to increase in direct proportion to increasing level of sorghum grain supplementation (2.19, 2.43 and 2.59 lb/day for the control, 2 and 4 lb/day supplement levels, respectively). The amount of grass remaining in the pastures at the end of the grazing season (approximately July 15) also increased in direct proportion to increasing sorghum grain supplementation. Forage remaining in the pastures at the end of the growing season …
Effect Of Supplemental Grain Sorghum And Overseeding With Ladino Clover On Grazing And Subsequent Feedlot Performance Of Steers Early-Intensively Grazed On Acremonium Coenophialum - Infected Tall Fescue Pastures (1992), K.P. Coffey, Joseph L. Moyer, Lyle W. Lomas, F.K. Brazle
Effect Of Supplemental Grain Sorghum And Overseeding With Ladino Clover On Grazing And Subsequent Feedlot Performance Of Steers Early-Intensively Grazed On Acremonium Coenophialum - Infected Tall Fescue Pastures (1992), K.P. Coffey, Joseph L. Moyer, Lyle W. Lomas, F.K. Brazle
Kansas Agricultural Experiment Station Research Reports
Eighty mixed breed steers (avg. wt. 560 lb.) were used to evaluate the effect on grazing gain and subsequent feedlot performance of different management options for steers early-intensively grazing Acremonium coenophialuminfected tall fescue pastures. Steers were allotted to pastures of infected fescue pastures or infected fescue overseeded with ladino clover and received no supplement or were offered grain sorghum at .25% of their body weight. Neither supplementation nor overseeding affected grazing or feedlot performance. However, grain supplementation on overseeded pastures reduced subsequent feedlot feed efficiency (P<.10). These management options did not substantially affect grazing or subsequent feedlot performance by steers early-intensively grazing infected fescue pastures.
Synchronization Of Estrus In Yearling Beef Heifers With The Mga®/Prostaglandin System: I. Effect On Inducement Of Puberty And Conception Rates (1992), L.R. Corah, J.R. Yaeger, J.C. Whittier, J.C. Meiske, D.J. Patterson, K. C. Olson
Synchronization Of Estrus In Yearling Beef Heifers With The Mga®/Prostaglandin System: I. Effect On Inducement Of Puberty And Conception Rates (1992), L.R. Corah, J.R. Yaeger, J.C. Whittier, J.C. Meiske, D.J. Patterson, K. C. Olson
Kansas Agricultural Experiment Station Research Reports
We evaluated the estrous response and fertility of yearling beef heifers after treatment with melengestrol acetate (MGA) and prostaglandin F2" (PG). The 304 heifers, at three locations, were allotted to two treatments: nonsynchronized controls and those receiving .5 mg MGA per head daily for 14 days followed by a 25 mg PG injection 17 days after the end of MGA feeding (MGA/PG). Heifers in the control and MGA/PG groups were artificially inseminated 12 hours after observed estrus for 21 days or 6 days after PG, respectively. Conception rate at first service and overall pregnancy rate did not differ (P>.10) …