Swine Day, 1979
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Item Open Access Comparison of anthelmintics for pigs raised in outside lots(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-06T18:32:48Z) Allee, G.L.; Schoneweis, D.One hundred fifty crossbred pigs averaging 21 lbs. initially were used to evaluate the effects of Banminth or Tramisol on performance of pigs housed in worm-contaminated dirt lots. Neither anthelmintic significantly affected average daily gain or feed efficiency. Pigs fed Banminth continuously were 5% more efficient in feed utilization during the starter phase and 4% more efficient in feed utilization during the grower phase than nonwormed pigs. Pigs fed Banminth had no liver scarring and no ascarids in gastrointestinal tracts at 125 pounds. Untreated pigs and those treated with Tramisol had lever scarring and ascarids in the gastrointestinal tracts at 125 pounds.Item Open Access Effects of steam pelleting and extruding sorghum grain-soybean meal diets on phosphorus availability for swine(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-05-06T18:32:36Z) Trotter, M.; Allee, G.Two feeding trials and three phosphorus balance studies were conducted to compare the effect of steam pelleting, extruding, and grinding on phosphorus availability. The results indicate that steam pelleting or extruding has little, if any, effect on the availability of phosphorus for finishing swine (100 to 220 lbs.).Item Open Access Artificial rearing of baby pigs with twice-a-day feeding and cow colostrum(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-04-30T18:06:07Z) Noll, M.T.; Allee, G.L.Four experiments involving 140 pigs were conducted to evaluate cow colostrum and twice-a-day feeding in artificial rearing of baby pigs. Piglets were allowed to nurse the sow for 15 hours after birth and allotted by litter and weight to milk replacer or milk replacer plus cow colostrum. Piglets were housed in individual wire cages and fed four times on day one, three times on day two, and twice daily days 3 through 21. Dry feed was offered to pigs after day 14. Pigs were removed from the individual cages and moved to a conventional nursery at 21 days of age. Piglets receiving cow colostrum had improved weight gains and decreased incidence of scours during the first week of life. Piglets fed cow colostrum had increased livability (98 vs. 91%) compared to piglets receiving only milk replacer. There was little advantage to feeding cow colostrum after the first week. Piglets raised artificially were similar in weight to sow-reared pigs at 6 weeks of age. These results suggest a practical, inexpensive method of artificially rearing of orphaned or extra baby pigs.Item Open Access Evaluation of comingling pigs before weaning to reduce weaning stress(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-04-30T18:05:29Z) Thulin, A.J.; Hines, Robert H.Two trials were conducted to evaluate the management practice of comingling litters one week before weaning to help reduce weaning stress. Pigs which were comingled before weaning gained slightly faster the first two weeks after weaning than pigs mixed at weaning, but overall pig performance to 7 to 8 weeks of age was similar for rate of gain and feed efficiency.Item Open Access Prevention and control of enteric swine diseases(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-04-30T18:05:01Z) Phillips, R.M.; Anderson, N.V.Work on colibacillosis has been concentrated on isolating and identifying enterotoxigenic E. coli from specimens submitted to the Veterinary Diagnostic Laboratory. Strains of enterotoxigenic E. coli isolated in the laboratory were sent to veterinary practitioners to use in producing of autogenous vaccines for producers to prevent neonatal diarrhea. Of 1,179 E. coli isolated from clinical specimens and tested for enterotoxin production, more than 22 percent of these isolates were disease-producing enterotoxigenic strains. These enterotoxigenic E. coli were sent to 136 veterinary practitioners for use in autogenous vaccines. The diagnostic laboratory also serves as a center for storing these vaccine strains.Item Open Access Evaluation of hover types with and without supplemental heat for finishing pig performance(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-04-30T18:04:27Z) Allee, G.L.; Nichols, David A.; Hines, Robert H.; dnicholsOne hundred sixty Yorkshire barrows and gilts were used to evaluate supplemental heat and various types of hovers for finishing pigs during December, 1978, and January, 1979. Hovers constructed of plywood, straw, and plywood covered with foil were placed over pens with and without catalytic heaters to determine the effect of each on performance. Hovers modified the pig's environment by an average of 80 straw hover, 90 foil covered plywood, and 30 plywood hover. Average daily gain and feed required per pound of gain were similar for all treatments. Pigs fed in pens with catalytic heaters gained slightly faster and were 5% more efficient than pigs fed in pens without heaters.Item Open Access Evaluation of various antibiotics on growth rate and feed efficiency by finishing pigs(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-04-30T18:04:15Z) Allee, G.L.Two trials involving 300 finishing pigs (120-220 lbs.) were conducted to evaluate Tylan, Stafac, Lincomix, and Flavomycin by growth rate and feed efficiency. In trial I, none of the antibiotics improved growth rate or feed efficiency. In trial II, where pigs were more crowded, feeding an antibiotic slightly, but not significantly, increased daily gain (0 to 8% improvement) and feed efficiency (3 to 9%), with no significant difference among antibiotics. These studies demonstrate that the response or lack of response to feeding low levels of antibiotics during the finishing phase will depend on the level of stress imposed.Item Open Access Swine embryo culture and transfer for export to England(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-04-30T18:04:02Z) James, J.E.; Reeser, P.D.; Davis, Duane L.; Straiton, E.C.; Talbot, A.C.; Polge, C.; davisA major threat to swine enterprises is the possible introduction of disease when new breeding animals are purchased and introduced. So, methods of introducing new genetic material while minimizing the potential for introducing disease are needed. Transfer of embryos from a donor sow in another herd or country would minimize disease risks. Already used to introduce new breeding stock into Specific Pathogen Free herds and other closed herds, embryos now are placed in the recipient gilt’s or sow1s uterus within a few hours after their recovery from the donor. That method prevents export and limits application of swine embryo transfer in this country, so we evaluated the feasibility of using an in vitro culture system to store embryos between donor sows and recipient females.Item Open Access Allyl trenbolone to control estrus in gilts -conception rate and litter size after treatment(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-04-30T18:03:48Z) Davis, Duane L.; Robl, J.M.; Nelssen, Jim L.; davis; jnelssenControl of estrus in gilts is theoretically possible by feeding a progestogen for 18 consecutive days. During the feeding period the progestogen suppresses estrus in all gilts and when withdrawn from the feed, all animals are expected to come in heat 4 to 7 days later. To be useful, the synchronizing agent must meet two criteria: (1) it must effectively control the time of estrus, and (2) it must not adversely affect fertility. We conducted this trial to evaluate a progestogen, allyl trenbolone, with respect to these criteria. Allyl trenbolone is not presently available to swine producers.Item Open Access Allyl trenbolone to control estrus in gilts-effect of dose(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-04-30T18:03:36Z) Davis, Duane L.; Robl, J.M.; Nelssen, Jim L.; davis; jnelssenReplacement gilts frequently do not fit smoothly into existing breeding and farrowing schedules because time of estrus cannot be predicted. Being able to program replacement gilts into a breeding herd would improve management, so we investigated the effectiveness of a synthetic progestogen, allyl trenbolone , to control estrus in gilts. Allyl trenbolone is not presently available to swine producers.Item Open Access Effects of various water medications on performance and feed and water consumption by pigs weaned at 3 or 4 weeks of age(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-04-30T18:01:14Z) Allee, G.L.; Schoneweis, D.Two trials using 216 pigs were conducted to evaluate effects various water medications have on performance and feed and water consumption by pigs weaned at 3 and 4 weeks of age. Water medication had no effect on pig performance. Pigs weaned at 3 weeks of age consumed an average of 0.8 quart of water per day for the first five days after weaning, compared with an average of 1.1 quarts per day by those weaned at 4 weeks of age. Adding syrup (500 ml/5 gallon) doubled the water consumption of both groups. Water medications did not reduce water consumption.Item Open Access Evaporative cooling systems for swine(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-04-30T18:01:00Z) Nichols, David A.; Ames, D.R.; Hines, Robert H.; dnicholsTwo trials involving 168 finishing pigs were conducted to compare continuous fogging with intermittent wetting to reduce heat stress in swine. In the second trial, intermittent wetting by sprinklers (1 min. sprinkle, 29 min. dry) significantly improved (P<.05) average daily gain and average daily feed over control, yet no significant differences in feed to gain ratios were observed between controls and fogged pigs in the second trial.Item Open Access Phosphorus availability in dry and high-moisture sorghum grain for growing swine and chicks(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-04-30T17:55:51Z) Trotter, M.; Allee, G.We used 117 crossbred pigs and 260 male White Leghorn chicks to determine the availability of phosphorus in high-moisture sorghum grain treated with propionic acid or stored in an oxygen limiting structure, and in field-dried sorghum grain. Bone breaking force as the criterion in the pig studies and tibia bone ash as the criterion in the chick studies gave availability estimates of 19, 42, and 43% for the pig and 25, 46, and 48% for the chick for dry, HMPA and HMO2L, respectively.Item Open Access Effect of high-moisture grain on availability of phosphorus for swine(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-04-30T17:55:39Z) Trotter, M.; Allee, G.A feeding trial and two phosphorus balance studies were conducted to compare the availabilities of phosphorus from high-moisture sorghum grain treated with propionic acid (1.2% acid, 23% moisture), grain stored in an oxygen limiting structure (27% moisture), and field-dried sorghum grain (13% moisture). Bone and phosphorus retention data indicated that the phosphorus in high-moisture sorghum grain is more available than phosphorus in field-dried sorghum grain.Item Open Access Effect of fiber source on performance of weanling pigs(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-04-30T17:53:12Z) Thulin, A.J.; Hines, Robert H.Ninety-six Yorkshire pigs, weaned at 5 to 6 weeks of age and averaging 9.5 kg (20.9 lbs.) were used to determine the effects of diets with increased fiber from oats, beet pulp, wheat bran, alfalfa meal or wheat shorts on performance and fecal consistency. Pigs fed the control, 20% oats, 10% beet pulp or 21.2% wheat bran diets had the best average daily gain; those fed the 48.5% wheat shorts, the poorest daily gain. Average daily feed intake was similar except that pigs fed the 20% oats diet consumed more feed (P<.05) than those fed the 48.5% wheat shorts. Feed efficiency was similar for all diets. Pigs fed the control, 20% oats, 10% beet pulp or 21.2% wheat bran diets had better average daily diarrhea scores than those fed the 7.6% alfalfa meal or 48.5% wheat shorts diets.Item Open Access Effects of feeding oats or oat hulls and meal or pellets on the performance of weanling pigs(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-04-30T17:39:15Z) Thulin, A.J.; Allee, G.L.; Hines, Robert H.Two hundred fifty eight, five-week old weanling pigs were used to evaluate various levels of dietary oats and oat hulls in swine diets by performance and incidence of diarrhea in pigs weaned at approximately 5 to 6 weeks of age (17.6 to 28.6 lbs.).