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Should You Use Artificial Insemination And/Or Embryo Transfer In Your Swine Operation? (1985), Duane L. Davis
Should You Use Artificial Insemination And/Or Embryo Transfer In Your Swine Operation? (1985), Duane L. Davis
Kansas Agricultural Experiment Station Research Reports
The use of AI and embryo transfer in swine herds will undoubtedly increase during the next decade. The techniques themselves will undergo refinement and improvements as swine producers learn to use them and to manage the genetic aspects of their herds. These techniques should not be viewed as useful tools only for large swine herds. In fact, the relative genetic advantage is probably greater for the medium-sized or small herd, since the superiority of the AI sires compared to boars otherwise available to these herds is relatively greater. Also, access to breeds that are not locally available is an important …
Effect Of Mixing On Performance Of Finishing Swine (1985), Robert H. Hines
Effect Of Mixing On Performance Of Finishing Swine (1985), Robert H. Hines
Kansas Agricultural Experiment Station Research Reports
Two feeding trials were conducted to evaluate the effect of mixing finishing pigs on subsequent performance. Growth rate of heavier pigs was reduced 15-35% in the two weeks after mixing when compared to the non-mixed pigs. This reduction in weight gain resulted in a significant difference in average daily gain overall for pigs mixed at 5 weeks compared to non-mixed pigs. An 8% reduction in the two weeks following mixing was observed for pigs mixed at 3 weeks compared to non-mixed pigs. However, during the following weeks of the trial, these pigs recovered, resulting in a non-significant reduction overall in …
Effect Of Weekly Temperature Reduction On Nursery Pig Performance (1985), David A. Nichols, M Johnston, Frank Blecha, James P. Murphy
Effect Of Weekly Temperature Reduction On Nursery Pig Performance (1985), David A. Nichols, M Johnston, Frank Blecha, James P. Murphy
Kansas Agricultural Experiment Station Research Reports
A total of 64 pigs were used to evaluate the effect of weekly temperature reductions. No differences were observed between treatments for average daily feed intake, daily gain, or feed efficiency. Pigs exposed to cooler temperatures during weeks 3 and 4 tended to consume more feed than those housed at 92 F for the entire period.; Swine Day, Manhattan, KS, November 21, 1985
Effect Of High Nutrient-Density Diets On Starter Pig Performance (1985), B C. Thaler, G L. Allee, Jim L. Nelssen
Effect Of High Nutrient-Density Diets On Starter Pig Performance (1985), B C. Thaler, G L. Allee, Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
Two experiments and an on-farm trial were conducted to compare the performance of weanling pigs fed a high nutrient-density diet (HNDD) to the performance of pigs fed standard corn-soybean meal (C-SBM) diets. A total of 358 crossbred weanling pigs (approximately 21 days of age) were allotted to experimental treatments based on initial weight and ancestry. Average initial pen weights ranged from 6.5 to 21.9 lb for the three trials. Dietary treatments consisted of feeding HNDD for 1 or 2 weeks followed by either 20% whey diets and/or 1.25% lysine C-SBM diets, a 20% whey diet for 2 weeks followed by …
Effects Of Fish Protein Hydrolysate And Dried Whey In Starter Pig Diets (1985), G R. Stoner, G L. Allee, Jim L. Nelssen
Effects Of Fish Protein Hydrolysate And Dried Whey In Starter Pig Diets (1985), G R. Stoner, G L. Allee, Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
Four experiments were conducted to evaluate Fish Protein Hydrolysate (FPH) as a protein source in starter diets for pigs. A total of 552 weaned pigs were used in three growth trials and one digestion study. All three growth trials were designed to determine the effect of FPH with and without dried whey on starter pig performance. The digestion study was designed to determine the effect of FPH with and without dried whey on nutrient digestibility. Adding 3% FPH to starter pig diets resulted in an improvement (8-17%) in average daily gain (ADG) over a corn-soybean meal basal diet. Feed efficiency …
Use Of Raw Soybeans In Sow Diets (1985), G L. Allee, De-Fa Li, Jim L. Nelssen
Use Of Raw Soybeans In Sow Diets (1985), G L. Allee, De-Fa Li, Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
Seventy-six gilts were used to evaluate the effects of feeding raw soybeans during gestation, lactation, and rebreeding on sow and litter performance. Reproductive performance during two parities was not impaired by feeding raw soybeans. However, sows fed raw soybeans lost more weight during lactation than sows fed soybean meal. The factor (or factors) responsible for this increased weight loss during lactation and the long-term consequences remains to be determined.; Swine Day, Manhattan, KS, November 21, 1985
Dietary Energy Intake During Lactation And Following Weaning; Effects On Sow And Litter Performance (1985), S A. Dulohery, Jim L. Nelssen, Duane L. Davis
Dietary Energy Intake During Lactation And Following Weaning; Effects On Sow And Litter Performance (1985), S A. Dulohery, Jim L. Nelssen, Duane L. Davis
Kansas Agricultural Experiment Station Research Reports
The effect of energy intake during a 21-day lactation and from weaning to estrus on sow and litter performance was studied. Lactation treatments consisted of two energy intakes, either 8 (Low Energy; LE) or 16 (High Energy, HE) Meal of metabolized energy (ME) per sow per day. Lactation diets were equivalent to daily feed intakes of 6 or 12 lb, respectively, of a grain-soybean meal diet. Energy intake from weaning to first estrus was either 5.5 (LE) or 11 (HE) Meal of ME per sow per day, formulated to approximate feeding of 4 or 8 lb of a grain-soybean meal …
Dietary Calcium And Phosphorus Level For Sows (1985), P F. Maxson
Dietary Calcium And Phosphorus Level For Sows (1985), P F. Maxson
Kansas Agricultural Experiment Station Research Reports
The past decade has seen increased emphasis upon sow research. With the strong pressure toward increased sow productivity, there continues to be a need for evaluation of sow nutrient requirements. One area that has received much attention is the calcium (Ca) and phosphorus (P) needs of gestating and lactating swine. Research has increased our knowledge of Ca and P for reproducing swine but there is still a great deal to be ascertained regarding the mineral requirements of the sow. There continues to be concern over the high incidences of leg soundness and posterior paralysis problems in reproducing sows. The most …
Supplementation Of Swine Diets With Fat (1985), Jim L. Nelssen
Supplementation Of Swine Diets With Fat (1985), Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
After several years of intensive research) the addition of fat to swine diets continues to generate spirited discussion. The use of cereal grain-soybean meal diets in the swine industry is popular because of the plentiful supply and current low price of cereal grains. Fat is an excellent energy source for all classes of swine, with a value approximately 2.25 times that of carbohydrates.; Swine Day, Manhattan, KS, November 21, 1985
Dry Vs. Wet Ad Libitum Feeding Of Finishing Swine (1985), J Vargas Vargas, Robert H. Hines
Dry Vs. Wet Ad Libitum Feeding Of Finishing Swine (1985), J Vargas Vargas, Robert H. Hines
Kansas Agricultural Experiment Station Research Reports
Two hundred finishing pigs were used to evaluate wet vs. dryad libitum feeding. Growth rate of finishing pigs was significantly improved (5%) by wet feeding. Feed utilization was improved 4.5% by wet feeding. Dry feeder type did not influence performance, since all pigs fed dry diets performed similarly. Likewise, pigs fed wet diets performed equally regardless of wet feeder type.; Swine Day, Manhattan, KS, November 21, 1985
Evaluation Of Barley For Finishing Swine (1985), Robert D. Goodband, Robert H. Hines
Evaluation Of Barley For Finishing Swine (1985), Robert D. Goodband, Robert H. Hines
Kansas Agricultural Experiment Station Research Reports
Three-hundred and ten crossbred finishing pigs averaging 110 lbs. were utilized in two growth trials to evaluate the effects of feeding barley to finishing hogs. In both experiments, there were no differences in average daily gain or average daily feed intake between hogs fed the milo-soybean meal control diet, a pelleted barley diet, or a 5% added fat barley diet. However, there was a significant decrease in average daily gain with the basal barley diet and a barley diet balanced on a lysine basis. Pelleting or adding fat significantly improved feed efficiency. In Experiment 2, hogs fed a 5% molasses …
Effect Of Barley In Starter Diets For Swine (1985), Robert D. Goodband, Robert H. Hines
Effect Of Barley In Starter Diets For Swine (1985), Robert D. Goodband, Robert H. Hines
Kansas Agricultural Experiment Station Research Reports
Two-hundred and forty weanling pigs averaging 14.0 Ibs. were utilized in two growth trials to evaluate the effects of increasing levels of barley in the diet. Milo was replaced by barley pound for pound at levels of 10, 20, 30, and 40% of the diet. Neither average daily gain, feed intake, nor feed efficiency were affected by the increasing levels of barley. These results indicate that barley may replace all of the milo in a 20%-whey nursery diet.; Swine Day, Manhattan, KS, November 21, 1985
Water Soluble Vitamin Needs Of Weaned Pigs (1985), M D. Newcomb, G L. Allee
Water Soluble Vitamin Needs Of Weaned Pigs (1985), M D. Newcomb, G L. Allee
Kansas Agricultural Experiment Station Research Reports
Two trials, using 360 pigs weaned at 17-27 days, were conducted to evaluate pig performance as affected by the addition of folic acid, thiamin, biotin, pyridoxine, or ascorbic acid to the diet. Combined data from Trial I and Trial II indicated that adding these supplemental vitamins did not improve daily gain or feed efficiency. These results suggest the addition of these supplemental water-soluble vitamins to a corn-soybean meal 20% whey diet or injection of a B-vitamin complex for pigs weaned at 3-4 weeks of age is not beneficial.; Swine Day, Manhattan, KS, November 21, 1985
Utero-Placental Transfer And Fetal Utilization Of Β-Hydroxybutyrate In Swine (1985), A J. Thulin, G L. Allee, D L. Harmon, D A. Schoneweis, Duane L. Davis
Utero-Placental Transfer And Fetal Utilization Of Β-Hydroxybutyrate In Swine (1985), A J. Thulin, G L. Allee, D L. Harmon, D A. Schoneweis, Duane L. Davis
Kansas Agricultural Experiment Station Research Reports
Utero-placental transfer of β hydroxybutyrate (BOHB) in swine was investigated during late gestation using three primiparous sows. There were no measureable artery-vein differences for BOHB concentration in whole blood and concentrations were low in both the sows and fetuses. Radioactive BOHB rapidly crossed the utero-placental unit and was incorporated into the Iiver, adipose, lung, and heart tissue (3540, 3674, 1214, and 528 dpm/g wet weight, respectively). The largest amount of radioactivity for all ti3sues was found in the phospholipid fraction. These data demonstrate that the swine utero-placental unit is permeable to BOHB and indicate that this ketone body is used …
Transfer Of Fatty Acids Across The Swine Uterus And Placenta (1985), A J. Thulin, G L. Allee, D L. Harmon, D A. Schoneweis, Duane L. Davis
Transfer Of Fatty Acids Across The Swine Uterus And Placenta (1985), A J. Thulin, G L. Allee, D L. Harmon, D A. Schoneweis, Duane L. Davis
Kansas Agricultural Experiment Station Research Reports
The transfer across the swine uterus and placenta of [1-14C] octanoic acid, [9,10(n)- H] palmitic acid, and [1- 14C] linoleic acid was studied in five gilts and their fetuses during late gestation, following a single bolus injection. Only trace amounts of labeled fatty acids were found in fetal plasma lipid. There were no measureable differences in free fatty acids (FFA) from umbilical artery, and veinous blood. Concentration of FFA in fetal blood was about 40% of the level of uterine values (187, 194, 73, and 82 µEg/1 for uterine artery, uterine vein, umbilical artery, and umbilical vein). In addition, fetal …
Growth Performance Of Pigs Infested With Sarcoptic Mange (1985), E L. Wooten, A B. Broce, Frank Blecha
Growth Performance Of Pigs Infested With Sarcoptic Mange (1985), E L. Wooten, A B. Broce, Frank Blecha
Kansas Agricultural Experiment Station Research Reports
Two trials were conducted to determine the effect of sarcoptic mange on growth performance of pigs. Results from previous experiments with weaned pigs artificially infested with sarcoptic mites indicated no alteration of growth performance (average daily gain, average daily feed intake, and feed efficiency) in infested pigs. Two trials were conducted to further evaluate the effect of sarcoptic mange on pig growth performance. The first trial used 36, 90-lb pigs artificially infested twice or once with sarcoptic mites. Twice-infested pigs had higher average daily gain and improved feed efficiency 6 weeks after infestation than non-infested pigs. No alterations of growth …