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Kansas Agricultural Experiment Station contribution; no. 88-363-S; Cattlemen's Day
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Morning Versus Evening Supplementation For Heifers Grazing Winter Range (1988), E. Vanzant, B. Cochran, L. Corah, K. Zoellner
Morning Versus Evening Supplementation For Heifers Grazing Winter Range (1988), E. Vanzant, B. Cochran, L. Corah, K. Zoellner
Kansas Agricultural Experiment Station Research Reports
Supplementing developing heifers in the morning was compared with supplementation at sundown. No difference was evident among treatments in average daily gain, distance traveled, or time spent grazing.
Effect Of Medicated Mineral Mixtures And A Pinkeye Vaccine On The Gain And Health Of Steers Grazing Native Grass Pastures (1988), F. Brazle
Kansas Agricultural Experiment Station Research Reports
Feeding supplements containing an antibiotic or ionophore improved stocker gains by .06 to .26 lb per head daily. A combination of Bovatec and Aureomycin in the mineral mixture improved (P<.08) steer gains over feeding Aureomycin alone. Mineral intake was higher than expected for the steers grazing burned, double-stocked) native grass pastures in 1987. Vaccinating steers with Piliguard at turn-out had no effect on pinkeye incidence and reduced stocker gains slightly.
Influence Of Supplemental Grain Type On Forage Utilization By Beef Steers Consuming Early Summer Bluestem (1988), E.S. Vanzant, R.C. Cochran, A.A. Beharka, T.B. Avery
Influence Of Supplemental Grain Type On Forage Utilization By Beef Steers Consuming Early Summer Bluestem (1988), E.S. Vanzant, R.C. Cochran, A.A. Beharka, T.B. Avery
Kansas Agricultural Experiment Station Research Reports
Supplementation of early summer bluestem with low levels of corn, wheat, or sorghum grain had no effect on forage intake, forage digestibility, or total dry matter digestibility in beef steers, compared with a regimen of no supplementation. Increased total dry matter intakes for the supplemented steers reflected supplement consumption.
Horn Fly And Face Fly Control With The Dustacator® Combination Mineral Feeder And Livestock Dusting Device (1988), Donald E. Mock, R.R. Schalles
Horn Fly And Face Fly Control With The Dustacator® Combination Mineral Feeder And Livestock Dusting Device (1988), Donald E. Mock, R.R. Schalles
Kansas Agricultural Experiment Station Research Reports
Dustacators (combination mineral feeders and livestock dusting devices) were used for four beef herds at Kansas State University in 1985. Loose mineral was supplied in all four Dustacator tubs, which were adjusted to low settings. Permethrin dust had no apparent effect on horn flies. Co-Ral® from two sources and Rabon® provided approximately 65% horn fly reduction during the 53-day test period. The 1986 experiment compared the effects of Dustacator mineral tub height adjustments and loose vs. block mineral. Co-Hal 1% dust from a single source was used in all treatments on two Simmental herds and two Polled Hereford herds. Excellent …
Testing Feedstuffs Using Near-Infrared Reflectance Spectroscopy (Nirs) (1988), P.C. Dubois, L.H. Harbers
Testing Feedstuffs Using Near-Infrared Reflectance Spectroscopy (Nirs) (1988), P.C. Dubois, L.H. Harbers
Kansas Agricultural Experiment Station Research Reports
Over 16 years ago, an analytical instrument was developed that could rapidly determine the concentration of organic compounds from the spectra produced by the bonding between certain molecules. The instrument is based on the principle that those molecules absorb electromagnetic radiation in the infrared region. Compounds may be quantitated by using a computer to compare absorption bands in the near-infrared spectrum to those from a large calibration set of known composition. Peaks from compounds such as water, protein, fat, and carbohydrate may be translated into nutrient components such as moisture, crude protein, crude fat, acid detergent fiber, etc. all this …
Yield, Chemical Composition, And Feeding Value Of Winter Cereal Silages And Hays: A 3 Year Study (1988), S. Azimi, K. Bolsen, A. Laytimi, S.H.M. Esmail, J. Hoover, Q.K. Ye
Yield, Chemical Composition, And Feeding Value Of Winter Cereal Silages And Hays: A 3 Year Study (1988), S. Azimi, K. Bolsen, A. Laytimi, S.H.M. Esmail, J. Hoover, Q.K. Ye
Kansas Agricultural Experiment Station Research Reports
Three trials were conducted to compare silage and hay yields and feeding values of winter cereal foraged harvested in the boot and dough stages of maturity. Included were triticale; common rye; Kanby barley; and Centurk, Arkan, and Bounty 205 wheats. As expected, forage dry matter (DM) yields were higher at the dough stage then boot stage, and silage yields tended to be higher than those for hay. In Trials 2 and 3 (1986-87), barley and rye forage yields were lower than wheat yields. In all three years, wet weather conditions made hay-making difficult. In Trial 1, cattle performance from dough …
Influence Of Ralgro® On Suckling Calf Performance On Tall Fescue Pastures With Various Levels Of Endophyte Infestation (1988), F. Brazle, J. Whittier
Influence Of Ralgro® On Suckling Calf Performance On Tall Fescue Pastures With Various Levels Of Endophyte Infestation (1988), F. Brazle, J. Whittier
Kansas Agricultural Experiment Station Research Reports
Four hundred and ten cow-calf pairs were allotted to tall fescue pastures containing 40, 45, or 70% endophyte fungus infestation. One half of the calves in each pasture were implanted with Ralgro® initially and reimplanted about 110 days later. Calf gains on the 70% endophyte fungus pasture showed a greater (P<.05) response to implanting than those grazing the 40 and 45% endophyte-infested tall fescue pastures during the 165 day trial.
Glucose, Starch, And Dextrin Utilization In The Small Intestine Of Steers (1988), K.K. Kreikemeier, D.L. Harmon, T.B. Avery, Robert T. Brandt Jr.
Glucose, Starch, And Dextrin Utilization In The Small Intestine Of Steers (1988), K.K. Kreikemeier, D.L. Harmon, T.B. Avery, Robert T. Brandt Jr.
Kansas Agricultural Experiment Station Research Reports
Glucose infused into the abomasum of Holstein steers resulted in higher arterial glucose concentrations and increased net glucose absorption than either starch or dextrin infusions. Increasing infusion rates above 20 g/hr for both starch and dextrin resulted in no further increases in net glucose absorption. Even though the enzymatic starch and dextrin hydrolysis became saturated above 25 g/hr, the amount of starch and dextrin disappearing in the small intestine increased with higher infusion rates. This was accompanied by increased volatile fatty acid concentrations in the ileal fluid with starch and dextrin infusions, but not when glucose was infused. These data …
Serum Cholesterol Concentrations In Yearling Bulls (1988), G. Goldy, W. Olsen, Jack G. Riley
Serum Cholesterol Concentrations In Yearling Bulls (1988), G. Goldy, W. Olsen, Jack G. Riley
Kansas Agricultural Experiment Station Research Reports
A wide range in serum cholesterol concentrations was observed within and between all four breeds of yearling bulls studied. The significance of this observation is unknown at this time. Addition research is necessary to determine the heritability of serum cholesterol, and the relationship between serum cholesterol of sires and the tissue cholesterol of their progeny.
Effect Of Ralgro® On Performance Of Steers Grazing High And Low Endophyte Fungus-Infested Tall Fescue Pastures (1988), F.K. Brazle
Effect Of Ralgro® On Performance Of Steers Grazing High And Low Endophyte Fungus-Infested Tall Fescue Pastures (1988), F.K. Brazle
Kansas Agricultural Experiment Station Research Reports
Steers were either not implanted or implanted with 36 or 72 mg of Ralgro, then allowed to graze on both high and low endophyte fungus tall fescue pastures. Ralgro had a greater effect on improving gains of steers grazing high endophyte fungus pastures than on those grazing lowly infected fescue pastures.
The Effect Of Physical Characteristics On The Price Of Stocker And Feeder Cattle (1988), F. Brazle, J. Mintert, Ted C. Schroeder, O. Grunewald
The Effect Of Physical Characteristics On The Price Of Stocker And Feeder Cattle (1988), F. Brazle, J. Mintert, Ted C. Schroeder, O. Grunewald
Kansas Agricultural Experiment Station Research Reports
A survey of feeder cattle sales was conducted at seven Kansas cattle auctions during 1986 and 1987. A wide variety of physical characteristics was found to influence feeder cattle prices. The price impact resulting from changes in fill and condition varied seasonally. Although calves showing any signs of health problems received severe price discounts, the presence of other undesirable characteristics also resulted in discounts, but to lesser degrees.
Whole-Plant Forage And Grain Sorghums And Corn Silages For Growing Cattle (1988), B. Kirch, S. Hamma, K. Bolsen, J. Hoover, Jack G. Riley
Whole-Plant Forage And Grain Sorghums And Corn Silages For Growing Cattle (1988), B. Kirch, S. Hamma, K. Bolsen, J. Hoover, Jack G. Riley
Kansas Agricultural Experiment Station Research Reports
Two trials were conducted to determine the feeding value of whole-plant forage sorghum, grain sorghum, and corn silages, with and without 25% rolled grain sorghum added to the ration. In general, growing cattle fed corn or grain sorghum silages out-performed those fed forage sorghum silages. Only forage sorghums with moderate grain yields supported gains approaching those from grain sorghum silages. With the addition of 25% rolled grain sorghum, cattle performance from the low and medium grain-yielding forage sorghum silages was improved greatly (gains by 20 to 44%, dry matter intake by 12 to 17%, feed conversion by 4 to 25%). …
Effect Of Environmental Temperature And Inoculants On The Fermentation Of Alfalfa And Forage Sorghum Silages (1988), K. Bolsen, A. Laytimi, L. Nuzback, R. Hart
Effect Of Environmental Temperature And Inoculants On The Fermentation Of Alfalfa And Forage Sorghum Silages (1988), K. Bolsen, A. Laytimi, L. Nuzback, R. Hart
Kansas Agricultural Experiment Station Research Reports
The inoculants, TriLac ®and Ecosyl® increased the rate and efficiency of the ensiling process in both high (50%) and low (32.5%) dry matter alfalfa, regardless of temperature. In both alfalfa trials, the inoculated silages had significantly lower pH, acetic acid, ethanol, and ammonia-nitrogen values and higher lactic acid values than their control counterparts. The inoculants worked equally well when fermentation was at 60 or 90 F. Although similar effects were obtained with forage sorghum, the differences were not as pronounced as those for the alfalfa silages.
Effect Of Tetronasin On Frothy Bloat In Cattle Caused By High-Grain Diet (1988), L.R. Neibarger, Tiruvoor G. Nagaraja
Effect Of Tetronasin On Frothy Bloat In Cattle Caused By High-Grain Diet (1988), L.R. Neibarger, Tiruvoor G. Nagaraja
Kansas Agricultural Experiment Station Research Reports
Feeding Tetronasin reduced incidence of frothy bloat in cattle fed a high-grain diet. The effective dose was 0.25 mg/kg body weight when administered prior to the onset of frothy bloat. At 0.15 mg/kg body weight, the antibiotic was less effective but the degree of bloat was considerably less than that of steers fed no antibiotic. Tetronasin also reduced the severity of bloat in steers that were already bloating prior to its administration.
Experimental Induction And Monitoring Of Liver Abscesses In Cattle With Ultrasonography (1988), K.F. Lechtenberg, T.B. Avery, Tiruvoor G. Nagaraja
Experimental Induction And Monitoring Of Liver Abscesses In Cattle With Ultrasonography (1988), K.F. Lechtenberg, T.B. Avery, Tiruvoor G. Nagaraja
Kansas Agricultural Experiment Station Research Reports
We have demonstrated that ultrasonography can be used to visualize liver abscess in live cattle. We have also developed a nonsurgical method of catheterizing the bovine portal vein and experimentally inducing liver abscesses by inoculating the portal vein with Fusobacterium necrophorum bacteria.
Effect Of Cobactin On The Feedlot Performance And Carcass Traits Of Beef Steers (1988), L. Corah, Ronald V. Pope
Effect Of Cobactin On The Feedlot Performance And Carcass Traits Of Beef Steers (1988), L. Corah, Ronald V. Pope
Kansas Agricultural Experiment Station Research Reports
The addition of Cobactin to feedlot rations had no significant effect on average daily gain or feed efficiency, but did improve quality grade of steers fed for 110 days.
Kansas Custom Cattle Feeding Practices (1988), Ted C. Schroeder, Gerry L. Kuhl
Kansas Custom Cattle Feeding Practices (1988), Ted C. Schroeder, Gerry L. Kuhl
Kansas Agricultural Experiment Station Research Reports
A survey of Kansas custom cattle feedlots was conducted in the fall of 1987. This paper summarizes the survey and discusses some of the custom cattle feeding services and charges being offered.
The Effect Of Alfalfa Weevil Control On Alfalfa Hay Yield And Quality (1988), B. Ritter, B. Bauernfeind
The Effect Of Alfalfa Weevil Control On Alfalfa Hay Yield And Quality (1988), B. Ritter, B. Bauernfeind
Kansas Agricultural Experiment Station Research Reports
A 2-year-old, irriagated alfalfa field was left untreated or treated with ¼ lb, ½ lb, or 1 lb of Furadan® per acre on April 5, 1986. Alfalfa weevil populations were determined 2,9,16 and 23 days post-spraying. Forage samples were collected at about the 1/10 bloom stage of maturity. All three Furadan levels provided excellent weevil control up to 23 days post-spraying, and all resulted in an increase in dry matter yield. But only the yield of the 1 lb./A. treatment was significantly (P<.15) greater than the untreated forage (1.97 vs. 2.44 tons/A). There was no difference in nutrient composition between the untreated and treated forage. All Furadan treatment resulted in a net economic gain per acre. In this study, between ½ lb and 1 lb Furadan per acre resulted in the greatest weevil control and economic return per acre.
Effect Of Grain Source And Brewer's Grain On The Performance And Serum Cholesterol Concentration Of Finishing Steers (1988), G. Goldy, Jack G. Riley
Effect Of Grain Source And Brewer's Grain On The Performance And Serum Cholesterol Concentration Of Finishing Steers (1988), G. Goldy, Jack G. Riley
Kansas Agricultural Experiment Station Research Reports
The inclusion of brewer's grains at 20% of the ration dry matter increased dry matter intake, resulting in poorer feed efficiency. Brewer's grain appeared to increase serum cholesterol. Serum cholesterol increased as days on feed increased, similar to other reported studies. Steers fed grain sorghum had greater dry matter intakes and poorer feed efficiencies than those fed barley or wheat. Analysis of tissue samples has not been completed at this time, which prohibits drawing any conclusions as to the effect on tissue cholesterol concentrations.
An Analysis Of Weaning Weight Records In Kansas Cowherds From 1968 To 1985 (1988), R.C Perry, D.D. Simms, L.R. Corah, D.J. Patterson
An Analysis Of Weaning Weight Records In Kansas Cowherds From 1968 To 1985 (1988), R.C Perry, D.D. Simms, L.R. Corah, D.J. Patterson
Kansas Agricultural Experiment Station Research Reports
A data set of 33,208 individual weaning records (1968-1985) from producers within Kansas was analyzed to determine factors influencing weaning weight. In determining the effect of calving sequence (21 day periods), only data from larger cowherds with records from at least 5 years were included (n=18,400). On the average, for every 21 days later a calf is born, there is a 22.8 lb decline in weaning weight. During the 17-year period that these records encompassed, there has been an average annual weaning weight increase of 4.6 lbs. This study suggests that factors influencing weaning weight in Kansas are age at …
Comparison Of Feedlot Performance Of Steer Calves Produced By Angus X Hereford And Brahman X Hereford Cows (1988), J.R. Brethour, D. Patterson, K. Olson, L. Corah
Comparison Of Feedlot Performance Of Steer Calves Produced By Angus X Hereford And Brahman X Hereford Cows (1988), J.R. Brethour, D. Patterson, K. Olson, L. Corah
Kansas Agricultural Experiment Station Research Reports
Steer calves that were 75 percent Hereford and either 25 percent Angus (BWF) or Brahman (BRX) were compared in a feedlot study that involved either high-concentrate or high-silage finishing rations. The BRX steers gained significantly faster, but there was no concomitant response in feed efficiency. The ration energy utilization by BRX steers appeared to be less than that of BWF steers. Performance of both breeds was poorer on the high-silage ration than on the high-grain ration, and there was no breed by ration interaction. A greater proportion of BWF calves graded USDA choice, but there was little difference between breeds …
Influence Of Supplemental Protein Concentration On The Performance Of Beef Cows Grazing Dormant Bluestem Range (1988), T. Delcurto, B. Cochran, L. Corah
Influence Of Supplemental Protein Concentration On The Performance Of Beef Cows Grazing Dormant Bluestem Range (1988), T. Delcurto, B. Cochran, L. Corah
Kansas Agricultural Experiment Station Research Reports
Three milo/soybean meal mixtures representing three supplemental crude protein concentrations (13, 26, and 39%) were evaluated in terms of pregnant beef cow performance. Cow weight and body condition changes responded in a linear fashion to increasing protein. Cattle fed the high protein (39% Crude Protein) supplement lost the least weight and body condition, whereas cattle supplemented with the low protein treatment lost the most. Although there was little difference between treatment groups in terms of reproductive efficiency and subsequent calf performance, moderate (26% Crude Protein) and high protein supplements appear to offer the most benefit in maintaining cow\weight and body …
Farm, Wholesale, And Retail Beef Price Relationship (1988), Ted C. Schroeder
Farm, Wholesale, And Retail Beef Price Relationship (1988), Ted C. Schroeder
Kansas Agricultural Experiment Station Research Reports
Analysis of weekly retail, wholesale, and farm beef price data indicated that a time lag exists between price changes at the various market levels. Farm-level slaughter cattle price changes typically lead wholesale beef price changes by 2 to 3 weeks. Similarly, wholesale beef price changes typically lead price changes at the retail level by 3 to 4 weeks.
Relationship Between Agronomic And Silage Quality Traits Of Forage Sorghum Cultivars (1988), J. White, K. Bolsen, B. Kirch
Relationship Between Agronomic And Silage Quality Traits Of Forage Sorghum Cultivars (1988), J. White, K. Bolsen, B. Kirch
Kansas Agricultural Experiment Station Research Reports
Results from two trials evaluating 11 forage sorghums as silage crops indicated that silage quality traits of voluntary intake, digestibility, and crude protein content were linearly associated with the agronomic characteristics of days to half bloom and plant height. Intake was negatively associated with plant height (r = -.49); digestibility was negatively associated with days to half bloom (r = -.39) and plant height (r = -.49); and crude protein was negatively associated with days to half bloom (r = - .51) and plant height (r = -. 71). Within the same cultivar, but between years, voluntary intake varied by …
Effect Of Enzyme And Inoculant Additives On Preservation And Feeding Value Of Wheat And Forage Sorghum Silages (1988), A. Laytimi, K. Bolsen, J. Schurhammer, B. Kirch
Effect Of Enzyme And Inoculant Additives On Preservation And Feeding Value Of Wheat And Forage Sorghum Silages (1988), A. Laytimi, K. Bolsen, J. Schurhammer, B. Kirch
Kansas Agricultural Experiment Station Research Reports
Enzyme and inoculant additives produced more efficiently preserved wheat and forage sorghum silages and improved their feeding value. In general, treated silages had lower pH, acetic acid, and ammonia-nitrogen values and higher lactic acid and lactic to acetic acid ratios than untreated silages. In two of the three trials, cell wall and acid detergent fiber fractions were lower in treated than untreated silages. In Trial 2, the treated sorghum silages were extremely unstable in air and cattle performance was similar for control and treated silages. In Trial 3, gains and feed conversions in steers were improved for those fed treated …
Effect Of Hay Quality And Breed On The Onset Of Puberty And Subsequent Reproductive Performance In Beef Heifers (1988), R.C. Perry, L.R. Corah, R.C. Cochran, J.R. Brethour
Effect Of Hay Quality And Breed On The Onset Of Puberty And Subsequent Reproductive Performance In Beef Heifers (1988), R.C. Perry, L.R. Corah, R.C. Cochran, J.R. Brethour
Kansas Agricultural Experiment Station Research Reports
The effect of hay quality on the onset of puberty and subsequent reproductive performance was evaluated in 51 3/4 Hereford x 1/4 Angus (HA) heifers and 47 3/4 Hereford x 1/4 Brahman (HB) heifers. Two qualities of alfalfa hay were fed ad libitum. along with an average of 3.1 lbs/hd/day of ground sorghum grain. HB heifers were heavier and carrying more backfat and body condition (P<.05) at the start of the experiment and they maintained their weight advantage through out the experiment. A higher (P<.05) percent of the UB heifers reached puberty by 14 and 15 months of age and became pregnant during a 45 day artificial insemination breeding period. HA heifers reached puberty at a lighter (P<.05) average weight. Heifers fed high quality alfalfa hay were heavier (P<.05) by the start of the breeding season and were carrying more (P<.05) backfat and body condition. A higher percent (P=.08) of the heifers receiving higher quality hay reached puberty by 16 months of age and a higher (P=.10) percent became pregnant during the breeding period. Heifers inseminated at their pubertal estrus had lower (P=.04) first service conception rates than heifers inseminated at their second or later estruses (52% vs. 88%).
Evaluation Of Mga And Prostaglandin As An Estrous Synchronization Procedure Under Field Conditions (1988), P.L. Houghton, L.R. Corah, T.B. Goehring
Evaluation Of Mga And Prostaglandin As An Estrous Synchronization Procedure Under Field Conditions (1988), P.L. Houghton, L.R. Corah, T.B. Goehring
Kansas Agricultural Experiment Station Research Reports
When fed MGA (0.5 mg.hd/day) for 14 days, followed by a prostaglandin injection 17 days later, a total of 736 out of 1112 heifers at 11 locations expressed signs of estrus within 5 days following the PG injection for a 66.2% response to synchronization. Response rates between locations ranged from 33 to 95% (P<.05). In a comparison of prostaglandin forms at 5 locations, using 789 heifers, response to synchronization was similar (P=.66) between Lutalyse® (62.7% response) and Bovilene® (59.6% response). First-service conception rate was compared in 411 heifers at two locations and was higher for Lutalyse (68.996) than Bovilene (59.996) (P<.08). First-service conception rate varied by technician (P<.05) and ranged from 48.7 to 83.6%.
Limit Versus Full Creep For Calves Grazing Late Summer Bluestem (1988), B. Cochran, Gerry L. Kuhl, T. Delcurto, L. Corah, E. Vanzant
Limit Versus Full Creep For Calves Grazing Late Summer Bluestem (1988), B. Cochran, Gerry L. Kuhl, T. Delcurto, L. Corah, E. Vanzant
Kansas Agricultural Experiment Station Research Reports
Limit-feeding a soybean meal/milo creep supplement (1696 crude protein, average 3.096 salt) was compared with ad libitum consumption of the same supplement without salt or with no supplementation. Little difference was evident in average daily gain of calves among treatments. However, poor supplement consumption may have affected results.
The Influence Of Stage Of Pregnancy On Digestion Characteristics In Beef Cows (1988), A. Beharka, B. Cochran, D. Harmon, T. Avery
The Influence Of Stage Of Pregnancy On Digestion Characteristics In Beef Cows (1988), A. Beharka, B. Cochran, D. Harmon, T. Avery
Kansas Agricultural Experiment Station Research Reports
Feed intake during the final trimester of gestation did not appear to vary significantly until 2 weeks before calving, after which it decreased dramatically. Measurements during two periods in the final trimester suggested that passage rate increased and digestibility decreased, as pregnancy proceeded.
Influence Of Limited-Creep Feeding On Pre And Postweaning Performance Of Spring Born Calves (1988), P. Houghton, F. Brazle, Gerry L. Kuhl, B. Schalles, K. Zoellner
Influence Of Limited-Creep Feeding On Pre And Postweaning Performance Of Spring Born Calves (1988), P. Houghton, F. Brazle, Gerry L. Kuhl, B. Schalles, K. Zoellner
Kansas Agricultural Experiment Station Research Reports
Two limited-creep feeding trials were conducted in Northwest and Southeast Kansas using spring-born, suckling calves to evaluate the effect of available forage supply on creep-fed calf performance. Energy vs. protein creep feeds were compared at each location. Creep feed intake was limited with salt to achieve an average daily intake of about 1.5 lb per head. Calves consuming the limited energy and protein creep feeds gained from 0.1 to 0.6 lb more per head daily preweaning, and required 2.3 to 7.6 lb of creep per lb of extra weaning weight. Postweaning gains of the noncreep-fed calves were .12 to .27 …