Cattlemen's Day, 1974
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Item Open Access Effect of sound stress on ovulation, estrus, and conception in beef heifers(Kansas State University. Agricultural Experiment Station, 2011-03-11) Heersche, G. Jr.; Kiracofe, G.; McKee, M.; Ames, D.R.Thirty of the 50 heifers used in estrous synchronization studies and that received prostaglandin and Syncro-Mate B to synchronize estrus were subjected to sound stress for 48 hours after prostaglandin was injected. Fifty-nine percent of 29 sound-stressed heifers that showed estrus within 5 days conceived when artificially inseminated compared with 72 percent of 18 nonstressed heifers.Item Open Access Synchronizing estrus in heifers with prostaglandin and Syncro-mate B(Kansas State University. Agricultural Experiment Station, 2011-03-08) Heersche, G. Jr.; Kiracofe, G.; McKee, M.; Davis, Duane L.; Brower, G.R.Forty-seven of 50 heifers were in estrus 1 to 5 days after an injection of prostaglandin given when an ear implant of Synchro-mate B was removed. The implant had been in place one week. Thirty of the 47 (63.8%) heifers with synchronized estrus conceived on first artificial insemination. Twenty untreated heifers were in estrus in 27 days; 13 (65%) conceived on first artificial insemination.Item Open Access Protein levels for bulls on 140-day, gain test(Kansas State University. Agricultural Experiment Station, 2011-03-08) McKee, M.; Schalles, R.R.; Zoellner, K.O.Three trials with Angus, Hereford, and Shorthorn bulls produced in the University teaching herd were conducted to determine effects of 10, 12, or 14% calculated crude protein levels in grain rations. In trial 1, the 10% crude protein grain rations resulted in significantly (P<.0l) lower gains than did either 12 or 14% crude protein grain rations. The 10% ration was not tested in trials 2 and 3. Rates of gain and feed per pound of gain did not differ significantly between bulls fed 12% or 14% protein rations.Item Open Access Weaning calves early(Kansas State University. Agricultural Experiment Station, 2011-03-08) McKee, M.; Bolsen, K.K.; Conway, K.L.; Fink, G.; Riley, Jack G.An 85-day, post weaning growth rate for 30 calves weaned at an average age of 110.5 days was compared with the growth rate of 30 calves nursing their mothers the same period. Average age of the nursing calves at the start of the test was 106.2 days. All calves received creep feed free-choice. The early weaned calves were divided into two groups; one group (A) received direct-cut alfalfa wilted with rolled milo free-choice; the other (B), field-wilted haylage plus rolled milo free-choice. Twenty-four of the later weaned calves were confined to dry lot with their mothers, and 6 (D) nursed their mothers on pasture. Average daily gains (lbs.) and feed costs per pound of gain for the calves in groups A through D, respectively, were: 2.97. $0.232; 2.50, $0.254; 3.03, $0.309 and 2.87, $0.229. Feed cost per pound of gain was computed by combining 85 day feed cost of cow and calf and dividing by the calves gain.Item Open Access Milo stover for growing heifers(Kansas State University. Agricultural Experiment Station, 2011-03-08) Bolsen, K.K.; Boyett, G.; Riley, Jack G.Five rations (involving 4 forage treatments) were compared: (1) forage sorghum silage, (2) forage sorghum silage ensiled with organic acids , (3) milo stover pellets, (4) milo stover silage and (5) milo stover silage plus rolled milo. Each ration was fed to 13 heifer calves for 114 days. No differences were observed in gain, intake or feed efficiency between heifers fed untreated and organic acid-treated forage sorghum silage. Pelleting milo stover increased dry matter consumption over milo stover silage but resulted in a poorer feed conversion. Adding rolled milo to stover silage improved gain and feed conversion compared to stover silage or pellets . Results indicate that growing heifers can make substantial winter gains on properly supplemented milo stover rations. The feeding value of forage sorghum silage was not improved by adding organic acids.Item Open Access Yield and composition of grain sorghum stover(Kansas State University. Agricultural Experiment Station, 2011-03-08) Vanderlip, R. L.; Schneider, L.R.; Bolsen, K.K.Last year in Kansas approximately 3.8 million acres produced 243 million bushels of grain sorghum plus a large amount of forage left in the field as a potential source of feed for livestock. The objective of this report is to indicate the quantity of forage available after normal and early (high-moisture) harvest of sorghum grain.Item Open Access Influence of alfalfa harvesting and storing methods on steer performance(Kansas State University. Agricultural Experiment Station, 2011-03-08) Bolsen, K.K.; Berger, Larry Lyle; Riley, Jack G.Three alfalfa treatments were evaluated in a steer performance trial: (1) direct-cut and ensiled with dry milo, (2) field-wilted and ensiled, with milo added at feeding and (3) baled, with milo added at feeding. The rations contained 45.4, 50.9 and 48.1 percent milo, respectively. During the 84-day trial, yearling steers made similar gains on the three rations. Direct-cut and ensiled alfalfa produced the most efficient gain; hay the least efficient. Potential beef gain per acre of alfalfa was lowest from baled hay.Item Open Access Corn silage, wheat head silage and milage for finishing cattle(Kansas State University. Agricultural Experiment Station, 2011-03-08) Bolsen, K.K.; Conway, K.L.; Henry, P.; Riley, Jack G.Six finishing rations were compared: (1) 10% corn silage, (2) 20% corn silage, (3) 10% wheat head silage, (4) 20% wheat head silage, (5) unprocessed (whole) milage and (6) processed (rolled) milage. Each ration was fed to 18 yearling steers for 123 days. Rate of gain was not affected by ration. Feed consumption and feed required per lb. of gain were higher for steers receiving whole milage than for steers receiving any of the other five rations. Although steers fed rolled milage consumed less feed, they were 11.4 percent more efficient than steers fed whole milage.Item Open Access Wheat head silage and corn silage for growing steers(Kansas State University. Agricultural Experiment Station, 2011-03-08) Bolsen, K.K.; Conway, K.L.; Riley, Jack G.Two trials were conducted to evaluate two varieties of wheat head silage (Parker and Blue Boy) and whole-plant corn silage in growing rations for steers. Each silage was fed to 21 steers for 122 days. All steers were full-fed a 12.5% crude protein ration containing 86% silage and 14% supplement. Steers fed corn silage gained faster, consumed more dry matter and were more efficient than steers fed either wheat head silage ration. Gain and feed consumption were greater for steers fed Blue Boy than for those fed Parker. Ration dry matter digestibility was higher for the corn silage ration than for either wheat head silage ration.Item Open Access Protein supplements for feedlot rations compared(Kansas State University. Agricultural Experiment Station, 2011-03-04) Shiawoya, E.L.; Harbers, L.H.; Bolsen, K.K.; Riley, Jack G.; Dikeman, Michael E.; mdikemanProtein supplements composed of either soybean meal, a combination of soybean meal and urea, or milo Starea improved gain 5% and feed efficiency 4% over supplements of either urea or wheat Starea (P<.25). Cost of gain favored the nonprotein nitrogen compounds; thus, choice of supplement was related to relative cost of supplements.Item Open Access Soybean meal and Starea (R) blocks compared by wintering cows on bluestem pasture: effects on birth and weaning weights of calves(Kansas State University. Agricultural Experiment Station, 2011-03-04) Harbers, L.H.; Shiawoya, E.L.; Conway, K.; McKee, R.M.Similar gains and adjusted weaning weights can be expected from calves whose dams are wintered on soybean meal or Starea protein blocks. Rebreeding time is expected to be similar for both groups of dams.Item Open Access Response of yearling steers on bluestem pastures that were intensively stocked early in season(Kansas State University. Agricultural Experiment Station, 2011-03-04) Berger, Loren Lynn; Harbers, L.H.; Schalles, R.R.; Smith, E.F.; Owensby, Clenton E.; owensbyNine pastures of 492 acres were summer grazed by yearling steers. Five were burned April 24, 1973; four were not burned. Burned and nonburned pastures had 0, 40, or 80 lbs. of nitrogen per acre applied aerially. Stocking rates were determined with herbage production data from experimental plots under similar treatments. Under the same fertilization and stocking rates, average daily gain and gain per acre were higher for burned pastures than nonburned pastures. Fertilizing bluestem tended to reduce daily gains but increased gain per acre. Steers on the early-season, intensively grazed pasture, gained the most per day (1.51 lbs) and produced one of the higher per-acre gains (72 lbs.).Item Open Access Influence of winter nutrition on production and reproduction in spring-calving cows(Kansas State University. Agricultural Experiment Station, 2011-03-04) Davis, Duane L.; Schalles, R.R.; Kiracofe, G.; Good, D.L.Winter nutrition requirements for beef cows grazing native tallgrass range in the Flint Hills were studied from 1968 through 1973. Three lb. milo was a better supplement to the basic ration of 3 lb. alfalfa hay than 1 1/2 lb. of soybean meal was. Younger cows performed better when 6 lb. milo was fed with the 3 lb. alfalfa hay. Feeding 3 lb. alfalfa hay or the equivalent until approximately 100 days before the breeding season and 3 lb. alfalfa hay, 6 lb. milo the remainder of the winter did not reduce performance of cows 3 years old or older. Cows that rebred lost less weight over winter and were heavier the next summer when they were bred than cows that did not rebreed.Item Open Access Effects on cows, calves, and vegetation of nitrogen fertilization and burning bluestem pastures annually(Kansas State University. Agricultural Experiment Station, 2011-03-04) Berger, Loren Lynn; Schalles, R.R.; Harbers, L.H.; Smith, E.F.; Owensby, Clenton E.; owensbyBurning and fertilizing pastures were evaluated on six Bluestem pastures by comparing performances by spring-calving cows and calves. Two control pastures were not burned or fertilized, two pastures were burned, and two were burned and fertilized with 40 pounds of nitrogen an acre applied aerially. Average daily gains of the calves did not differ significantly among treatments. The burned, fertilized, pastures produced significantly higher gains per acre, as their increased forage supported heavier stocking rates.Item Open Access Influence of rumen fluid inoculation on incidence of sickness in newly arrived feeder calves(Kansas State University. Agricultural Experiment Station, 2011-03-04) Bolsen, K.K.; Armbruster, S.; Caley, Homer K., 1922-; Fink, G.; Riley, Jack G.Inoculating newly arrived feeder calves with 250 ml. rumen fluid did not stimulate weight gain or decrease sickness. One hundred seventy steer calves were used in the 31 day study.Item Open Access Beef cattle commercial feedlot studies Trial 2--effects on steer performance of variable protein levels, implanting and worming(Kansas State University. Agricultural Experiment Station, 2011-03-04) Harrison, K.F.; Good, D.L.; Riley, Jack G.A 189-day trial used 280 mixed-breed steers to study effects of various protein levels in finishing steer rations. Rations containing 15.4 or 13.4% crude protein significantly improved rate of gain during the first 42 days compared with an 11.4% crude protein ration. Rates of gain after 91 or 189 days did not differ significantly indicating that steers make compensatory gains. Removing supplemental protein from the ration of 140 steers the final 28 days did not adversely affect rate or efficiency of gain. One hundred forty steers implanted with 36 mg. zeranol and 140 with 36 mg. stilbestrol gained similarly, however, Ralgro implanted steers graded significantly higher. Steers wormed with levamisole or thiabendazole gained 0.06 pound per day faster than steers not wormed.Item Open Access Effects of roughage and protein levels on performance of finishing steers and heifers(Kansas State University. Agricultural Experiment Station, 2011-03-04) Harrison, K.F.; Riley, Jack G.A 142-day trial used 36 Angus steers and 63 mixed-breed heifers to study the effects of roughage and protein levels in beef cattle finishing rations. Results from a 13% crude protein ration the first 70 days or a ration with supplemental protein removed the final 30 days did not differ significantly from results with an 11% crude protein ration. Rations containing 10.0, 17.5 or 25.0% roughage (dry matter basis) made no significant difference in performances by steers or heifers.
