Swine Day, 1975
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Item Open Access K.S.U aerobic swine-waste handling system (6 years of problems and progress)(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T16:01:39Z) Koch, B.A.; Allee, G.L.; Lipper, R.I.; Hines, Robert H.The Kansas State University Swine research Unit's aerobic-oxidation waste disposal system is functioning satisfactorily with minimum maintenance and supervision. Labor requirements are low. Odor is no problem. Waste fluid can be spread on the fields any time without creating a "public nuisance.” Pigs are performing satisfactorily in the unit. Flies are easily controlled and suitable sanitation is easily maintained.Item Open Access Swine market prospects(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T16:01:29Z) Kropf, J.; McCoy, J.Prices for market barrows and gilts began a significant upward trend in July, 1974. By spring of 1975 hog feeding profits had improved substantially over a year earlier. Improved profits would be expected to lead to expanded production. The Hogs and Pigs Report for 14 states released September 19, 1975 by the Statistical Reporting Service indicated sow farrowing intentions for September-November are down 7 percent. While December-February farrowing intentions are up 6 percent, the resulting increased pork production available by mid-year should not significantly affect prices.Item Open Access Selecting for muscling in swine and resulting effects on carcass traits(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T16:01:09Z) Wheat, J.D.; Kropf, Donald H.; Hines, Robert H.Litters farrowed total 147 (25 in 1971, 23 in 1972, 33 in 1973, 32 in 1974 and 34 in 1975); pigs total 1196, 1102 alive at birth 94 (8%) dead at birth. Line differences in loin eye area, backfat thickness and age (adjusted to 220 pounds live-weight) have not been significant. Carcass data collected from 165 barrows indicate the two lines do not yet differ in carcass traits.Item Open Access Number of pigs per pen with equal space per pig(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T16:01:00Z) Koch, B.A.; Allee, G.L.; Hines, Robert H.Groups of 6, 12, or 24 pigs averaging 37 pounds each were assigned to pens where each pig had 3.85 square feet of floor space for a 4-week feeding period. Pigs in groups of 12 gained significantly slower and showed a much higher incidence of tail-biting than groups of 6 or 24. Feed efficiency was similar for all groups. In groups of 12 three pigs per feeder space gave the same results as six pigs per feeder space.Item Open Access Protein level and lysine supplementation of diets for weaned pigs(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T16:00:21Z) Allee, G.L.; Koch, B.A.; Hines, Robert H.Seventy-two pigs, 30 days old averaging 17 pounds initially, were used to evaluate lysine additions to 16 and 18 percent protein fortified corn-soybean meal diets. Adding 0.1% or 0.2% L-lysine to the 16% protein diet increased weight gains. Gain and efficiency of pigs fed the 16% protein diet supplemented with 0.2% L-lysine were similar to that of pigs fed the 18% protein corn-soybean meal diet. Adding lysine to the 18% protein diet improved neither gains nor feed efficiency of pigs weaned at four weeks of age.Item Open Access Reclaiming energy from swine manure(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T15:55:51Z) Lipper, R.Of several types of processes to capture energy from organic wastes, anaerobic digestion appears to be most attractive for swine wastes. It can stabilize the waste while producing bio-gas or methane gas. The concept has been extensively applied in Europe and India during energy shortages. Similar equipment has been used for gas production with domestic wastes. Anaerobic digestion has the additional attraction of preserving most of the plant nutrients for application to agricultural land. Primary disadvantages are the management required by sensitive digesters, the high initial investment required for equipment, and the fact that waste still must be disposed of after it is digested. Research is in progress to make the process more practical. Bacteriologists are investigating new strains of bacteria and culturing techniques. Engineers are investigating digester designs and operation to reduce construction and operational requirements and costs. Investments in such research appear more worthwhile with each rise in the cost of energy.Item Open Access Pricing feeder pigs(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T15:55:41Z) McCoy, J.H.; Price, R.V.; Manuel, M.L.; Ward, C.E.Recent increases in specialized production of feeder pigs has stimulated interest in various methods of pricing pigs outside traditional marketing channels. Most such methods are either negotiated pricing or formula pricing. In privately negotiated transactions, both seller and buyer must have approximately equal knowledge of markets and of grade and weight characteristics of the pigs. In addition, each should have about equal bargaining ability.Item Open Access Trace mineral levels during gestation - effects on hemoglobin, performance and health of neonatal pigs(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T15:55:30Z) Schoneweis, D.A.; Allee, G.L.Thirty-one litters were used to compare effects of two levels of trace minerals fed dams during gestation on hemoglobin, performance, and health of neonatal pigs. There were no significant differences in number of pigs born alive, birth weight, two-week or four-week weights of the pigs due to trace minerals fed the dams during gestation. Neither were there differences between groups of pigs in hemoglobin, packed cell volume, or erythrocytes at birth or at two-weeks age. There were no apparent differences in the incidence of diarrhea or other neonatal diseases between the two group. Our results suggest no benefits from feeding high levels of trace minerals to sows during gestation.Item Open Access Nutritional value of pearl millet for swine(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T15:55:19Z) Allee, G.L.; Paulsen, Gary M.A growth trial and a digestion trial were conducted using 44 crossbred pigs (initial average weight 40 pounds) to determine the nutritional value of pearl millet as a feedstuff for swine. The millet used contained 11.98% protein (N x 6.25) and 0.40% lysine on a dry matter basis. In the growth trial, replacing 50 or 100% of the corn with millet had no significant effect on feed intake, daily gain, or feed/gain. Results of the digestion trial suggest that the digestibility of protein and energy in millet is similar to that of corn.Item Open Access Salt level for finishing swine(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T15:55:02Z) Koch, B.A.; Allee, G.L.; Hines, Robert H.Two feeding trials involving 118 finishing Pigs were conducted to determine minimum salt needed in finishing diets. Performance of pigs fed 0.2 to 0.5% salt diets did not differ significantly, but pigs fed 0.1% or no salt gained significantly slower and less efficiently. Therefore, 0.2% salt in the finishing ration for swine from 100 lbs. to 215 lbs. should meet finishing pigs' requirements.Item Open Access Yeast culture as an additive in swine grower rations(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T15:28:57Z) Koch, B.A.; Allee, G.L.; Hines, Robert H.Adding yeast culture at manufacturer's recommended levels to a complete, pelleted, 16% crude protein ration fed to nursery-age pigs produced no measurable improvement in rate of gain, feed efficiency, survival, activity, or appearance.Item Open Access Microlite offered free-choice to growing-finishing pigs(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T15:28:47Z) Koch, B.A.; Allee, G.L.; Hines, Robert H.Growing and finishing pigs consumed from 54 to 64 grams of Microlite per head per day when it was available free choice from a self-feeder. It had no measurable affect on average daily gain, feed consumption, feed efficiency, or behavior of pigs eating a complete ration.Item Open Access Attractants for swine starter feeds: aroma vs. taste(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T15:28:35Z) Koch, B.A.; Allee, G.L.; Hines, Robert H.Duroc weaned pigs given a choice of feed containing an aromatic or sugar chose diets containing 5% sugar. The preference pattern was altered by pre-weaning feeding in that pigs tended to consume the initial ration. However, they later exhibited a preference for the sugar diet indicating that taste was more of an attractant than aroma. Pigs with access to only one diet consumed approximately the same amount of feed per day, so weight gains and feed/gain ratios were similar. Neither aroma nor sugar increased feed intake or performance by pigs offered only one diet.Item Open Access Extra iron for baby pigs(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T15:28:24Z) Koch, B.A.; Allee, G.L.; Schoneweis, D.A.; Hines, Robert H.Ten mg. of iron per day fed orally 24 days in addition to 150 mg. injected when pigs were 3 days old did not significantly increase Hb of baby pigs. Neither did it increase average daily gain or weight-per-day-of-age at 32 days. We saw no symptoms of iron toxicity in treated pigs.Item Open Access Isocaloric swine finishing diets with various percentages of alfalfa meal and tallow(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T15:28:12Z) Koch, B.A.; Allee, G.L.; Hines, Robert H.Increasing the alfalfa meal to 30% in a finishing pig diet did not significantly reduce average daily gain when tallow was also added to maintain the caloric density of the ration. Digestibility of dry matter and gross energy were reduced as fiber increased, but feed efficiency was not significantly changed with caloric density maintained. Increasing dietary alfalfa meal and tallow content did not change the percentage of dietary nitrogen retained. Rations containing high levels of alfalfa meal and tallow tended to "bridge" in self-feeders.Item Open Access High-moisture acid-treated milo for swine(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-07T15:27:58Z) Allee, G.L.; Riley, Jack G.; Koch, B.A.; Hines, Robert H.Two trials involving 105 finishing pigs (initial average weight 125 pounds) and 55 growing pigs (initial average weight 28 pounds) were conducted to determine the nutritional value of high-moisture, acid-treated milo in swine rations. Additionally, feeding method (complete mixed or free-choice) and processing method (ground or whole) were compared. The high-moisture milo (22% moisture) was treated with either propionic acid (P.A.) 0.6% w/w, or ammonium isobutyrate (AIB) 1.75% w/w. Pigs fed high-moisture, acid-treated milo as a complete mixed ration gained at the same rate and were just as efficient in feed utilization as pigs fed the dry, complete mixed ration. In both trials, both acid treatments gave similar pig performances. In the finishing trial, pigs fed high-moisture, acid-treated milo and supplement free-choice gained at the same rate and were just as efficient in feed utilization as pigs fed the complete mixed rations. However, with growing pigs, free-choice feeding significantly (P<.05) reduced daily gain. Finishing pigs fed whole high-moisture, acid-treated milo required significantly (P<.05) more feed per unit of gain than pigs fed the ground high-moisture acid-treated milo. Whole high-moisture, acid-treated milo was used as efficiently as ground high-moisture, acid-treated milo by young pigs. Acid-treated, high-moisture milo is equal to dry milo in feeding value when the acid-treated milo is fed in a ground complete mixed ration. With free-choice feeding, pigs fed high-moisture, acid-treated milo may not eat enough supplement to give maximum performance.
