Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Cattlemen's Day

1996

Articles 1 - 30 of 42

Full-Text Articles in Life Sciences

Natural Degradable Protein And Roughage Type For Implanted Finishing Steers Fed Dry-Rolled Corn Diets, C.T. Milton, Robert T. Brandt Jr., Gerry L. Kuhl, Evan C. Titgemeyer, James S. Drouillard Jan 1996

Natural Degradable Protein And Roughage Type For Implanted Finishing Steers Fed Dry-Rolled Corn Diets, C.T. Milton, Robert T. Brandt Jr., Gerry L. Kuhl, Evan C. Titgemeyer, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Three hundred eighty-four crossbred, yearling steers (810 lb) were used to evaluate soybean meal (SBM), sunflower meal (SFM), and combinations of the two as protein supplements and supplemental protein effects in diets containing silage or alfalfa as dietary roughage. All diets contained 1.0% urea (dry matter basis). An additional 2 percentage units of crude protein were either not provided or provided as SBM, SFM, or a 50:50 combination (protein basis) of SBM and SFM. Steers were implanted with Revalor-Sfi and fed experimental diets for 126 days. No interactions between protein supplementation and roughage source were observed. Daily feed ...


Sensory Traits, Color, And Shelf Life Of Low-Dose Irradiated Beef Steaks, S.E. Luchsinger, Donald H. Kropf, C.M. Garc A Zepeda, James L. Marsden, Melvin C. Hunt, M.E. Hollingsworth, Sally L. Stroda, Edgar Chambers, Curtis L. Kastner Jan 1996

Sensory Traits, Color, And Shelf Life Of Low-Dose Irradiated Beef Steaks, S.E. Luchsinger, Donald H. Kropf, C.M. Garc A Zepeda, James L. Marsden, Melvin C. Hunt, M.E. Hollingsworth, Sally L. Stroda, Edgar Chambers, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Irradiation had minimal effects on flavor and texture of frozen or chilled vacuum-packaged boneless beef steaks. A dose level of 3.5 kilograys (kGy) reduced beef aroma in chilled steaks. Irradiation did not influence internal or external cooked color, most raw color traits, cooking loss, pH, oxidative rancidity, or Warner-Bratzler shear force in chilled or frozen boneless steaks. PVC-wrapped controls were less red than irradiated steaks after 5 days of display. Exposure to oxygen by repackaging into oxygen-permeable film increased oxidative rancidity after display. Vacuum-packaging, in combination with irradiation, enables boneless beef steaks to be stored and/or displayed up ...


Bacterial Flora Of Liver Abscesses From Feedlot Cattle Fed With Or Without Tylosin, A.B. Beharka, L.H. Carroll, A.P. Raun, S.B. Laudert, J.C. Parrott, Tiruvoor G. Nagaraja, M. M. Chengappa Jan 1996

Bacterial Flora Of Liver Abscesses From Feedlot Cattle Fed With Or Without Tylosin, A.B. Beharka, L.H. Carroll, A.P. Raun, S.B. Laudert, J.C. Parrott, Tiruvoor G. Nagaraja, M. M. Chengappa

Kansas Agricultural Experiment Station Research Reports

Fusobacterium necrophorum was the predominant bacterial isolate from liver abscesses of feedlot cattle fed with or without tylosin. The major difference in the bacterial flora of liver abscesses between cattle groups was the higher incidence of Actinomyces pyogenes in the tylosin-fed cattle. Because the minimum inhibitory concentration of tylosin was not different between bacterial isolates from cattle in the two treatments, we concluded that continuous feeding of tylosin does not induce resistance. The source of A. pyogenes infection and significance of A. pyogenes interaction with F. necrophorum in tylosin-fed cattle are not known.


Effect Of Increasing Urea Level In Protein Supplements On Performance By Beef Cows Consuming Low-Quality Tallgrass-Prairie Forage, H.H. Kster, R.C. Cochran, E.S. Vanzant, K. C. Olson, Timothy J. Jones, Evan C. Titgemeyer Jan 1996

Effect Of Increasing Urea Level In Protein Supplements On Performance By Beef Cows Consuming Low-Quality Tallgrass-Prairie Forage, H.H. Kster, R.C. Cochran, E.S. Vanzant, K. C. Olson, Timothy J. Jones, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Ninety pregnant Angus Hereford cows consuming low-quality, tallgrass-prairie hay were used to evaluate the influence of changing the amount of supplemental degradable intake protein (DIP) derived from urea on body weight and body condition changes, pregnancy rate, and calf performance. Supplemental treatment groups were: 0, 20, and 40% of the supplemental DIP from urea. Supplements were formulated to contain 30% CP . When sufficient DIP was offered to prepartum cows to maximize DOMI, urea could replace up to 40% of the DIP in a high-protein (30%) supplement without causing problems of supplement palatability. However, trends in body weight and condition indicate ...


Supplementing Growing Holstein Steers Fed A Corn-Urea Diet With A Mixture Of Essential Amino Acids Increases Performance, R.H. Wessels, Evan C. Titgemeyer Jan 1996

Supplementing Growing Holstein Steers Fed A Corn-Urea Diet With A Mixture Of Essential Amino Acids Increases Performance, R.H. Wessels, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Six ruminally cannulated Holstein steers (550 lb) implanted with Revalor-S were infused abomasally with water or a mixture of six amino acids in a crossover experiment (two 14-day periods) to evaluate effects on nitrogen balance. The mixture was comprised of amino acids that potentially may be limiting in lightweight steers, namely (g/day): lysine (5.3), methionine (3.3), threonine (3.2), tryptophan (1 .0), histidine (2.1), and arginine (5.5). Steers were fed at levels just below ad libitum intake. The diet contained 86% rolled corn, 10% prairie hay, 3% mineral and vitamin premixes, and 1% urea (as-fed ...


Steam Pasteurization Of Beef Carcasses, D.E. Schafer, R.K. Prasai, Abbey L. Nutsch, Randall K. Phebus, John R. Wolf, John A. Unruh, Curtis L. Kastner Jan 1996

Steam Pasteurization Of Beef Carcasses, D.E. Schafer, R.K. Prasai, Abbey L. Nutsch, Randall K. Phebus, John R. Wolf, John A. Unruh, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

This research evaluated the effectiveness of a newly patented steam-pasteurization process for reducing bacterial populations on the surfaces of freshly slaughtered beef carcasses. The process was developed jointly by Frigoscandia Food Processing Systems (Bellevue, WA) and Excel Corp. (Wichita, KS), a division of Cargill (Minneapolis, MN). In laboratory studies, portions of prerigor beef carcasses inoculated with very high levels of three pathogens, Salmonella, Escherichia coli O157:H7, and Listeria, were treated in a prototype steam-pasteurization chamber, which effectively eliminated at least 99.9% of all three pathogens and was most effective when used in combination with other standard commercial decontamination ...


Sensory Traits, Color, And Shelf Life Of Low-Dose Irradiated, Raw, Ground Beef Patties, S.E. Luchsinger, Donald H. Kropf, C.M. Garc A Zepeda, James L. Marsden, Melvin C. Hunt, M.E. Hollingsworth, Sally L. Stroda, Edgar Chambers, Curtis L. Kastner Jan 1996

Sensory Traits, Color, And Shelf Life Of Low-Dose Irradiated, Raw, Ground Beef Patties, S.E. Luchsinger, Donald H. Kropf, C.M. Garc A Zepeda, James L. Marsden, Melvin C. Hunt, M.E. Hollingsworth, Sally L. Stroda, Edgar Chambers, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Irradiation of raw ground beef patties had minimal effects on flavor and aroma of patties after cooking. Oxidative rancidity increased when patties were irradiated in aerobic but not in vacuum packages. Irradiation of vacuum-packaged ground beef patties produced a more stable color. In both packaging types, irradiation significantly reduced microbial growth during storage.


Sensory Traits, Color, And Shelf Life Of Low-Dose Irradiated, Precooked, Ground Beef Patties, S.E. Luchsinger, Donald H. Kropf, C.M. Garc A Zepeda, James L. Marsden, Melvin C. Hunt, M.E. Hollingsworth, Sally L. Stroda, Edgar Chambers, Curtis L. Kastner Jan 1996

Sensory Traits, Color, And Shelf Life Of Low-Dose Irradiated, Precooked, Ground Beef Patties, S.E. Luchsinger, Donald H. Kropf, C.M. Garc A Zepeda, James L. Marsden, Melvin C. Hunt, M.E. Hollingsworth, Sally L. Stroda, Edgar Chambers, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Irradiation did not influence bitter, bloody, burnt, chemical, fat-like, juiciness, liver-like, beef identity, metallic, rancid, sour, sweet, and toughness flavor/textural attributes, beef aroma, or off-odor in precooked ground beef patties. Irradiation slightly increased the animal hair flavor note, but intensity levels were <1 on the 15-point sensory scale. Except for 10% fat non-irradiated controls, reheated precooked patties had a slight sour, ammonia-like, top note. Irradiation at 3.5 kilograys (kGy) increased external redness in vacuum-packaged patties, but not in aerobic packages. Aerobic packaging with or without irradiation decreased external precooked redness. Oxidative rancidity increased when patties were irradiated in aerobic but not in vacuum packages. Reduction of oxygen in vacuum bags extended the shelf life of the precooked ground beef patties, at least in terms of oxidative rancidity. Precooking ground beef patties, irrespective of irradiation or packaging type, posed sensory disadvantages, and improvements to the precooking process are needed before irradiating at low-dose levels is appropriate.


Fate Of Fumonisins In Cattle Fed Contaminated Feed, R.A. Thakur, N. Wallace, J. Scott Smith, Tiruvoor G. Nagaraja Jan 1996

Fate Of Fumonisins In Cattle Fed Contaminated Feed, R.A. Thakur, N. Wallace, J. Scott Smith, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Fumonisins are water-soluble carcinogenic mycotoxins produced by many species of Fusarium molds. Fumonisins occur widely in corn, making them a problem in corn-based feed. Their toxicity has been established in many species. However, their effects on cattle and the potential of carryover to the human diet through beef has not been studied extensively. A 30-day cattle feeding study was conducted by feeding fumonisin-contaminated corn grits dosed at 400 g/g fumonisin B1 (FB1) and 130 g/g fumonisin B2 (FB2) to 3 steers averaging 480 lb. Premortem analysis involved urinalysis; tests for liver functionality; and analysis of the blood, urine ...


Variation In And Effects Of Prefabrication Fat Trimming On Yields And Prediction Equation Accuracies Of Retail Product And Fat Trim, L.V. Cundiff, K.E. Gregory, Kenneth E. Kemp, R.M. Koch, Michael E. Dikeman Jan 1996

Variation In And Effects Of Prefabrication Fat Trimming On Yields And Prediction Equation Accuracies Of Retail Product And Fat Trim, L.V. Cundiff, K.E. Gregory, Kenneth E. Kemp, R.M. Koch, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Carcass data from one side of 1,149 steers born from 1986 to 1990 were analyzed to develop means for carcass traits and retail product percentage by yield grades. Carcasses from 610 of these steers born from 1988 to 1990 were fabricated to two fat trim levels (.30 and .00 in.), with subcutaneous fat and intermuscular (internal) fat weighed separately. Subcutaneous fat from the primal round, loin, rib, chuck, brisket, and flank in excess of .30 in. plus the kidney knob were considered to constitute an industry "˜hot-fat trim equivalent' (HFTE). Quadratic regression curves were plotted for percent retail product ...


Calf Presence And Milking Twice Daily Prolongs Postpartum Anestrus, G.C. Lamb, L.M. Lynch, Jeffrey S. Stevenson Jan 1996

Calf Presence And Milking Twice Daily Prolongs Postpartum Anestrus, G.C. Lamb, L.M. Lynch, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Four treatments were initiated approximately 15 days after calving: 1) calf was weaned permanently from its dam (CW; n=6); 2) calf was present continuously with its dam (CPO; n=5); 3) calf was weaned permanently from its dam + dam was milked twice daily (CWM; n=6); 4) calf was present continuously with its dam but contact with the udder was prohibited + dam was milked twice daily (CRM; n=5). During the 4-week treatment period, cows in the CRM treatment produced about twice as much milk, milk fat, milk protein, milk lactose, and milk solids-not-fat (SNF) than CWM cows. After ...


Pregnancy Rates In Heifers And Suckled Beef Cows After Synchronized Ovulation Using Pgf2", Gnrh, And Norgestomet, D.P. Hoffman, Jeffrey S. Stevenson, C.L. Krehbiel, David A. Nichols, R.M. Mckee Jan 1996

Pregnancy Rates In Heifers And Suckled Beef Cows After Synchronized Ovulation Using Pgf2", Gnrh, And Norgestomet, D.P. Hoffman, Jeffrey S. Stevenson, C.L. Krehbiel, David A. Nichols, R.M. Mckee

Kansas Agricultural Experiment Station Research Reports

Suckled cows and virgin heifers received a novel treatment that included PGF 2", GnRH, and norgestomet, with the objective of inducing estrus in prepubertal heifers and anestrous suckled cows, as well as synchronizing ovulation in estrus-cycling females. The treatment consisted of two injections of PGF 2" (day 14 and 0) plus 100 Fg of GnRH and a 6-mg norgestomet ear implant on day 7. The implant was removed 24 h after the second injection of PGF2" (day 0), and a second injection of GnRH was given 30 hours after implant removal. The treated females were inseminated 18 hours after the ...


Timing Of Gain Does Not Alter Puberty And Reproductive Performance Of Beef Heifers Fed A High-Roughage Diet, J.M. Lynch, G.C. Lamb, B.L. Miller, J. Ernest Minton, R.C. Cochran, Robert T. Brandt Jan 1996

Timing Of Gain Does Not Alter Puberty And Reproductive Performance Of Beef Heifers Fed A High-Roughage Diet, J.M. Lynch, G.C. Lamb, B.L. Miller, J. Ernest Minton, R.C. Cochran, Robert T. Brandt

Kansas Agricultural Experiment Station Research Reports

Eighty crossbred heifers (549 lb initial body weight) were developed in drylot and limit-fed a forage sorghum silage diet predicted to produce gains of either 1 lb/day for the entire developmental period (EVENGAIN) or .25 lb/day for the first two-thirds of the period followed by 2 lb/day during the last third (LATEGAIN). Treatments began on November 7, 1994 and continued until April 24, 1995 (onset of the breeding season). Actual daily gains over the entire feeding period averaged 1.18 and 1.10 lb/day for EVENGAIN and LATEGAIN heifers, respectively. Age and weight at puberty were ...


Effects Of Postweaning Management System And Breed On Growth And Carcass Traits, K.M. Andries, R.R. Schalles, D.E. Franke, Michael E. Dikeman Jan 1996

Effects Of Postweaning Management System And Breed On Growth And Carcass Traits, K.M. Andries, R.R. Schalles, D.E. Franke, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Data from 5 years of a long-term, rotational, crossbreeding project were used to calculate heritabilities and correlations and to make breed comparisons for growth rate and carcass traits in two different postweaning management systems. The traits studied were weight per day of age, hot carcass weight, ribeye area, marbling score, and days of age at slaughter. One group was placed on full feed after weaning. A second group underwent a backgrounding phase for 7 months at Louisiana State University before being placed on feed at KSU. The breeds involved were Angus, Brahman, Charolais, Hereford, Simmental, and Gelbvieh. Differences in heritabilities ...


Comparisons Among Crossbred Beef Cattle For Growth And Carcass Traits, K.M. Andries, R.R. Schalles, D.E. Franke, Michael E. Dikeman Jan 1996

Comparisons Among Crossbred Beef Cattle For Growth And Carcass Traits, K.M. Andries, R.R. Schalles, D.E. Franke, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Data from 5 years of a long-term, rotational crossbreeding project were used to compare breeds for growth and carcass traits. The traits of interest were direct and maternal birth and weaning weights, gain on feed, hot carcass weight, ribeye area, marbling score, and slaughter age. Angus, Brahman, Hereford, Charolais, Simmental, and Gelbvieh breeds were involved. Simmental and Gelbvieh were used as terminal breeds, so maternal effects were not calculated for them. Brahman breeding caused an increased direct birth weight of the calves, but the maternal influence of Brahman decreased birth weight. No difference occurred in maternal weaning weight among the ...


Genetic Parameters For Growth And Carcass Traits From Crossbreeding, K.M. Andries, R.R. Schalles, D.E. Franke, Michael E. Dikeman Jan 1996

Genetic Parameters For Growth And Carcass Traits From Crossbreeding, K.M. Andries, R.R. Schalles, D.E. Franke, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Growth and carcass data from 5 years of a long-term, rotational, crossbreeding project were used to calculate heritabilities and genetic and phenotypic correlations for direct and maternal birth and weaning weight, gain on feed, hot carcass weight, ribeye area, marbling score, and age at slaughter. Angus, Brahman, Hereford, Charolais, Simmental, and Gelbvieh breeds were involved. Heritabilities of traits ranged from low (maternal weaning weight 0.04) to moderate (direct weaning weight 0.41). Direct birth weight, direct weaning weight, gain on feed, and hot carcass weight had moderate to high genetic correlations. Marbling had negative genetic correlations with birth and ...


Inheritance Of The "Rat-Tail" Syndrome, R.R. Schalles Jan 1996

Inheritance Of The "Rat-Tail" Syndrome, R.R. Schalles

Kansas Agricultural Experiment Station Research Reports

A form of congenital hypotrichosis, commonly known as rat-tail, is characterized by the colored hair anywhere on the body being short, curly, malformed, and sometimes sparse and an abnormal tail switch. The "rat-tail" syndrome is controlled by interaction between two loci. Cattle that express this syndrome must have at least one gene for black color and be heterozygous at the other locus involved.


Effect Of Increasing Urea Level In Protein Supplements On Intake And Digestion Of Low-Quality Tallgrass-Prairie Forage By Beef Steers, H.H. Kster, R.C. Cochran, E.S. Vanzant, G. St Jean, Evan C. Titgemeyer Jan 1996

Effect Of Increasing Urea Level In Protein Supplements On Intake And Digestion Of Low-Quality Tallgrass-Prairie Forage By Beef Steers, H.H. Kster, R.C. Cochran, E.S. Vanzant, G. St Jean, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Twelve ruminally fistulated steers were used to evaluate the effect of changing the proportion of supplemental degradable intake protein (DIP) derived from urea on forage intake and digestion. Steers had ad libitum access to a low-quality tallgrass-prairie hay. Supplemental treatment groups were: 1) 0% of the supplemental DIP from urea, 2) 20% of the supplemental DIP from urea, and 3) 40% of the supplemental DIP from urea. Supplements were formulated to contain 30% CP and were fed with prairie hay once daily. Results from this study indicated that urea can replace up to 40% of the supplemental DIP without affecting ...


The Influence Of Various Levels Of Supplemental Starch And Degradable Intake Protein On Prairie Hay Intake And Digestion By Beef Steers, R.C. Cochran, E.S. Vanzant, Evan C. Titgemeyer, Timothy J. Jones, K. C. Olson Jan 1996

The Influence Of Various Levels Of Supplemental Starch And Degradable Intake Protein On Prairie Hay Intake And Digestion By Beef Steers, R.C. Cochran, E.S. Vanzant, Evan C. Titgemeyer, Timothy J. Jones, K. C. Olson

Kansas Agricultural Experiment Station Research Reports

A study was conducted to determine the effect of varying the amount of supplemental degradable intake protein (DIP) and starch on prairie hay intake and digestibility. In general, DIP increased forage intake, whereas starch decreased intake. Diet digestibility also improved with increasing DIP; however, the effect of starch on digestion depended on the level of feeding. Digestible dry matter intake (which estimates total energy input) responded dramatically to DIP but not to starch. These results illustrate the positive effect of DIP on forage intake and digestibility; however, supplying additional starch within a DIP level appeared to have minimal effect on ...


Assessing Nutrient Composition And Digestibility Of Tallgrass-Prairie Hay, R.C. Cochran, K. C. Olson, Evan C. Titgemeyer, Timothy J. Jones Jan 1996

Assessing Nutrient Composition And Digestibility Of Tallgrass-Prairie Hay, R.C. Cochran, K. C. Olson, Evan C. Titgemeyer, Timothy J. Jones

Kansas Agricultural Experiment Station Research Reports

Thirteen steers were used in a 4 13 incomplete Latin square to determine chemical composition and digestibility for 13 samples of tallgrass prairie hay. Hays were collected from a variety of locations in east-central Kansas and represented a wide array of harvest dates and storage conditions. Steers were fed prairie hay and soybean meal at 1.5% and .2% of body weight, respectively, to equalize intakes relative to body weight and prevent degradable intake protein (DIP) from limiting extent of digestion. Prairie hay samples were analyze d for N, ADIN, ADF, NDF, ADIA, monosaccharides (sugars), and alkali-labile phenolic acids (lignin ...


In Vitro Estimation Of Ruminal Protein Degradability Of Forages, I.E.O. Abdelgadir, R.C. Cochran, E.S. Vanzant, Evan C. Titgemeyer Jan 1996

In Vitro Estimation Of Ruminal Protein Degradability Of Forages, I.E.O. Abdelgadir, R.C. Cochran, E.S. Vanzant, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Ruminal degradation of alfalfa and prairie hay protein was estimated using a proteolytic enzyme from Streptomyces griseus with or without pretreatment with cellulase or a broad spectrum carbohydrase (driselase). Estimates of the undegradable intake protein (UIP) as a percentage of total protein derived from the protease alone were higher than that measured in the animal (i.e., in vivo). Pretreatment of hay samples with cellulase (48 h incubation) or driselase improved the accuracy of UIP predictions compared with those determined using the protease alone.


Effect Of Annual Fire On Tallgrass Prairie Legumes, G. Towne, A.K. Knapp Jan 1996

Effect Of Annual Fire On Tallgrass Prairie Legumes, G. Towne, A.K. Knapp

Kansas Agricultural Experiment Station Research Reports

Total legume density was significantly higher in annually burned prairie (8.0 stems/m2) than in unburned prairie (3.0 stems/ m2). Densities of six species were higher (P<.05) in burned than in unburned prairie, whereas only one legume species decreased from annual fire. Total legume biomass did not differ between burned (11.3 g/m2) and unburned prairie (10.5 g/m2). Most legume species either are favored by fire or are fire tolerant, and their persistence in annually burned grassland suggests that they may play an important role in the nitrogen budget of tallgrass prairie.


Improving Silage Quality, K.K. Bolsen, B.E. Brent, M.K. Siefers, G.L. Huck, J.E. Turner, Matthew A. Young Jan 1996

Improving Silage Quality, K.K. Bolsen, B.E. Brent, M.K. Siefers, G.L. Huck, J.E. Turner, Matthew A. Young

Kansas Agricultural Experiment Station Research Reports

Results at Kansas State University from over 200 laboratory-scale trials and 28 farm-scale trials showed that bacterial inoculants consistently improved preservation efficiency and nutritive value of the ensiled material. In contrast, anhydrous ammonia or urea decreased dry matter recovery and production per ton of crop ensiled. Economic analysis also favored the use of bacterial inoculants over nonprotein nitrogen additives. Research conducted using corn, sorghum, and alfalfa silages showed that sealing the exposed surface dramatically reduced top spoilage losses in bunker, trench, or stack silos.


Effect Of Grain Content On The Nutritive Value Of Whole-Plant Grain Sorghum Silage, B.S. Dalke, R.N. Jr. Sonon, D.L. Holthaus, K.K. Bolsen, Matthew A. Young Jan 1996

Effect Of Grain Content On The Nutritive Value Of Whole-Plant Grain Sorghum Silage, B.S. Dalke, R.N. Jr. Sonon, D.L. Holthaus, K.K. Bolsen, Matthew A. Young

Kansas Agricultural Experiment Station Research Reports

This experiment was conducted to determine the effect of grain content on the nutritive value of whole-plant grain sorghum silage. Silage dry matter (DM), organic matter (OM), and crude protein (CP) contents increased with increasing levels of grain in the reconstituted, whole-plant silages, whereas neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents decreased as the level of grain increased from 0 to 48%. When fed to sheep (used as a model), voluntary DM intake and DM and OM digestibilities increased in a linear manner, whereas ADF digestibility decreased with increasing level of grain. Crude protein and NDF digestibilities ...


Agronomic And Silage Quality Traits Of Winter Cereals, M.K. Siefers, G.L. Huck, J.E. Turner, J.S. Pendergraft, K.K. Bolsen, Matthew A. Young Jan 1996

Agronomic And Silage Quality Traits Of Winter Cereals, M.K. Siefers, G.L. Huck, J.E. Turner, J.S. Pendergraft, K.K. Bolsen, Matthew A. Young

Kansas Agricultural Experiment Station Research Reports

Agronomic and silage quality traits were examined for 12 winter cereals harvested at two stages of maturity. Forage dry matter (DM) yields were higher at the mid-dough than the early-heading stage. Post 90 barley had the highest whole-plant DM yield at the early-heading stage, and Presto triticale had the highest yield at the mid-dough stage. Newton wheat had the lowest whole-plant DM yield at both stages of maturity. The first cutting of all varieties originally was intended to be at the late-boot stage, but harvest was delayed by frequent rainfall and wet soils in May, and field-wilting conditions were less ...


Effect Of Bacterial Inoculants On The Fermentation Of Alfalfa Silages, K.K. Bolsen, D.R. Bonilla, R.A. Hart-Thakur, Matthew A. Young Jan 1996

Effect Of Bacterial Inoculants On The Fermentation Of Alfalfa Silages, K.K. Bolsen, D.R. Bonilla, R.A. Hart-Thakur, Matthew A. Young

Kansas Agricultural Experiment Station Research Reports

The efficacy of 13 commercial bacterial silage inoculants was evaluated on 3rd and 4th cutting alfalfa. All inoculants supplied at least 100,000 colony-forming units (cfu) of lactic acid bacteria (LAB) per gram of ensiled crop, and each inoculant increased the rate and efficiency of the ensiling process. Inoculated alfalfa silages had lower pH values; higher lactic acid contents; and lower acetic acid, ethanol, and ammonia-nitrogen contents than control (untreated) silages. The addition of dextrose (fermentable substrate) in combination with a bacterial inoculant improved the quality of the fermentation phase in both cuttings of alfalfa.


Implant Strategies For Finishing Calves, C.T. Milton, Robert T. Brandt Jr., Gerry L. Kuhl, P.T. Anderson Jan 1996

Implant Strategies For Finishing Calves, C.T. Milton, Robert T. Brandt Jr., Gerry L. Kuhl, P.T. Anderson

Kansas Agricultural Experiment Station Research Reports

Two hundred-sixteen Angus and Angus-cross steer calves (690 lb) were used in a 129- day finishing study to evaluate different implant strategies, including an experimental new implant for feedlot cattle that contains 28 mg of estradiol benzoate and 200 mg of trenbolone acetate (EBTBA). Treatments were 1) nonimplanted control, 2) implanted and reimplanted with Synovex-Sfi, 3) single initial implant with EBTBA, 4) single initial implant with Revalor-Sfi, 5) implanted with Synovex-S and reimplanted with EBTBA, and 6) implanted and reimplanted with EBTBA. Initial implants and reimplants were administered on day 0 and 63, respectively. All implant treatments increased feed intake ...


Performance Of Finishing Steers Offered Magnesium-Mica In The Feedlot Ration, K.P. Coffey, F.K. Brazle Jan 1996

Performance Of Finishing Steers Offered Magnesium-Mica In The Feedlot Ration, K.P. Coffey, F.K. Brazle

Kansas Agricultural Experiment Station Research Reports

Forty-eight mixed-breed steers from two sources were used in a 141-day feedlot study to compare a control ration (C) with a ration containing magnesium-mica (MM; 9 lb/ton). No diet cattle source interactions were detected. Steer gain, efficiency, and cost of gain did not differ (P>.10) between diets. Marbling score tended (P<.10) to be greater and the percentage of cattle grading USDA Choice and net carcass value were greater (P<.05) for steers fed MM. Feeding MM in a feedlot ration may have a substantial economic impact on feedlot cattle.


Effect Of Magnesium-Mica During Grazing And/Or Feedlot Phases On Performance Of Steers, K.P. Coffey, F.K. Brazle, Lyle W. Lomas Jan 1996

Effect Of Magnesium-Mica During Grazing And/Or Feedlot Phases On Performance Of Steers, K.P. Coffey, F.K. Brazle, Lyle W. Lomas

Kansas Agricultural Experiment Station Research Reports

Seventy-two mixed breed steers (679 lb avg BW) grazing smooth bromegrass pastures for 112 days were fed 2.2 lb/day of either a control supplement (PC) or one containing .075 lb/day of magnesium-mica (PMM). Following the grazing period, steers were placed in a feedlot with pasture groups split such that two of the groups fed each pasture supplement were fed a control supplement (FC) and two groups were fed a supplement containing 10% magnesium-mica (FMM). Steers fed PMM tended to gain faster than those fed PC during the pasture phase (2.41 vs. 2.32 lb/day). Steers ...


Financial Performance Measures For Kansas Beef Cow Farms, Michael R. Langemeier Jan 1996

Financial Performance Measures For Kansas Beef Cow Farms, Michael R. Langemeier

Kansas Agricultural Experiment Station Research Reports

Financial performance measures assist managers in making strategic plans and tracking progress in relationship to a farm's goals. Kansas Farm Management Association data were used to compute average financial performance measures by herd size for beef cow farms. Farms with over 200 cows derived a larger percent of their income from beef cow production, tended to be large r in terms of gross farm income and total assets, were more profitable, and had lower debt ratios. Differences in financial performance among beef cow farms suggest that comparisons should be made only with herds that are similar in size.