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Animal Sciences

Kansas Agricultural Experiment Station Research Reports

1991

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Articles 1 - 30 of 103

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The Effect Of Processed Soybeans And Added Energy In Calf Starters On The Growth Of Holstein Calves (1991), P. V. Reddy, J. L. Morrill Jan 1991

The Effect Of Processed Soybeans And Added Energy In Calf Starters On The Growth Of Holstein Calves (1991), P. V. Reddy, J. L. Morrill

Kansas Agricultural Experiment Station Research Reports

In Trial 1, 91 Holstein calves were fed starters containing either soybean meal (SBM), extruded soybeans (ESB), roasted soybeans (RSB), SBM+soy oil (SO), or SBM+rumen inert fat (RIF) from birth to 10 wk of age. There were no differences in overall feed consumption, except that calves fed RSB consumed more than calves fed SBM+SO. There were no significant differences in weight gains, but calves fed SBM+SO tended to gain less. In trial 2, 71 Holstein calves were fed starters containing roasted soybeans from birth to 10 wk of age. Three of the starters contained 18% protein and soybeans roasted at …

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Extrusion Processing Of Low-Inhibitor Soybeans Improves Growth Performance Of Nursery Pigs Fed Protein-Adequate Diets (1991), A J. Lewis, P G. Reddy, D B. Jones, M A. Giesemann, Joe D. Hancock Jan 1991

Extrusion Processing Of Low-Inhibitor Soybeans Improves Growth Performance Of Nursery Pigs Fed Protein-Adequate Diets (1991), A J. Lewis, P G. Reddy, D B. Jones, M A. Giesemann, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

One hundred fifty weanling pigs (15.4 lb avg initial wt) were used in a 35-d growth assay to determine the effects of processing method (roasting in a Roast-A-Tron roaster vs extrusion in an Insta-Pro extruder) on nutritional value of soybeans with (+K) and without (-K) gene expression for the Kunitz trypsin inhibitor. Treatments were: 1) soybean meal with added soybean oil; 2) +K roasted; 3) +K extruded; 4) -K roasted; and 5) -K extruded. All diets were corn-based and formulated to 1.25% lysine for d 0 to 14 and 1.10% lysine for d 14 to 35 of the experiment. For …

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The Effect Of Supplemental Fat And Lysine On Finishing Pig Performance And Carcass Characteristics (1991), K G. Friesen, R C. Thaler, Robert D. Goodband, Jim L. Nelssen Jan 1991

The Effect Of Supplemental Fat And Lysine On Finishing Pig Performance And Carcass Characteristics (1991), K G. Friesen, R C. Thaler, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

One hundred and sixty pigs averaging 127.4 lb were used to determine the benefit of 5% supplemental fat and (or) .20% lysine on growth performance and carcass characteristics. The trial consisted of four treatments: 1) a .61 %, lysine milo-soybean meal control diet; 2) control + 5% fat; 3) control + .20% lysine; 4) control + 5% fat and .20% lysine. Lysine:metabolizable energy ratios were held constant at 1.91: 1 for treatments 1 and 2 and at 2.52: 1 for treatments 3 and 4. Pig weights and feed consumption were recorded every third wk to calculate average daily gain (ADG), …

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Effects Of Porcine Somatotropin Administration And Its Duration On Growth Performance And Carcass Characteristics Of Finishing Swine Fed To 280 Lb (1991), M E. Johnston, B R. Schricker, Jim L. Nelssen, Robert D. Goodband, Robert H. Hines, Donald H. Kropf Jan 1991

Effects Of Porcine Somatotropin Administration And Its Duration On Growth Performance And Carcass Characteristics Of Finishing Swine Fed To 280 Lb (1991), M E. Johnston, B R. Schricker, Jim L. Nelssen, Robert D. Goodband, Robert H. Hines, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

One hundred eight barrows with an initial weight of 120 lb were utilized to determine the effects of porcine somatotropin (PST) administration period and duration on growth performance and carcass characteristics of finishing swine fed to 280 lb. Pigs were injected daily in the extensor muscle of the neck with either a placebo or 4 mg pST. Treatments included: (A) placebo injection from 120 to 280 lb; (B) pST injection from 120 to 280 lb; (C) pST injection from 120 to 230 lb and then placebo injection from 230 to 280 lb; (D) placebo injection from 120 to 230 lb …

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Effect Of Replacing Milk Proteins With Wheat Gluten And Soybean Products On Digestibility Of Nutrients And Growth Performance In Nursery Pigs (1991), B T. Richert, J L. Morrill, Joe D. Hancock Jan 1991

Effect Of Replacing Milk Proteins With Wheat Gluten And Soybean Products On Digestibility Of Nutrients And Growth Performance In Nursery Pigs (1991), B T. Richert, J L. Morrill, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to evaluate the nutritional value of processed wheat gluten for early-weaned pigs. The first experiment involved 72 weanling pigs with an avg age of 20 d and avg wt of 9.2 lb. Six diets were fed to the pigs in individual metabolism cages. Protein sources were casein, flash-dried wheat gluten, spray-dried wheat gluten, two solubilized wheat glutens, and soybean meal. Response criteria were N digestibility, biological value, and N retention. Casein had greater N digestibility, biological value, and N retention than the other protein sources. The wheat gluten products had greater N digestibility than soybean meal. …

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Ksu Lean Gain Assessment Program (1991), G L. Keeler, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband Jan 1991

Ksu Lean Gain Assessment Program (1991), G L. Keeler, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

KSU Lean Gain Assessment is a new program developed at Kansas State University to allow producers to assess the actual lean gain of their pigs under normal farm conditions. The procedure is inexpensive and relatively simple and provides information that will assist producers in monitoring their genetic progress. Additionally, farm-specific diets can be formulated to match nutrient levels with the actual genetic potential of pigs on an individual farm.; Swine Day, Manhattan, KS, November 21. 1991

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Binding Agents For Low-Salt, Low-Fat, Restructured Beef Roasts: Connective Tissue Or Gelatin, P.B. Kenney, Donald H. Kropf, Curtis L. Kastner Jan 1991

Binding Agents For Low-Salt, Low-Fat, Restructured Beef Roasts: Connective Tissue Or Gelatin, P.B. Kenney, Donald H. Kropf, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Connective tissue, from the outside of three major chuck muscles, was evaluated for binding properties when incorporated either raw or following preheating into precooked, restructured beef. Food-grade gelatin was also evaluated as a binding agent. Adding 10% raw or preheated connective tissue increased (P<.05) instrumentally measured tensile strength and reduced (P<.05) juiciness perception. One percent gelatin reduced (P<.05) cook yields and increased (P<.05) tensile strength but not to the degree of 10% raw or preheated connective tissue. Preheating had minimal effects on improving connective tissue utility. Based on the improvement in bind and cook yields, use of connective tissue as a binder is feasible in manufacturing low-salt, precooked, restructured beef.

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Kansas Steer Futurities: An Economic Analysis Of Retained Ownership And A Summary Of Cattle Performance From 1974-1988, D. Simms, J. Mintert, A. Maddux Jan 1991

Kansas Steer Futurities: An Economic Analysis Of Retained Ownership And A Summary Of Cattle Performance From 1974-1988, D. Simms, J. Mintert, A. Maddux

Kansas Agricultural Experiment Station Research Reports

The performance, carcass characteristics, and economic data from over 6,200 steers entered in Kansas Steer Futurities from 1974 through 1988 were summarized to evaluate production trends and profitability. The steers' delivery weights, final weights, and frame scores increased over the 14-year period, while daily gain was essentially unchanged. The quality grade, fat thickness, and yield grade all decreased slightly. Ribeye area increased slightly, but ribeye area per unit of carcass remained constant over the years. Based on the delivery weight of the steers, price, normal production relationships, and estimated production costs, we estimate that net returns over cash costs for …

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Top Spoilage Losses In Horizontal Silos In Western Kansas, J.T. Dickerson, G. Ashbell, L. Pfaff, K.K. Bolsen, B.E. Brent, J.E. Bradford, R.L. Smith Jan 1991

Top Spoilage Losses In Horizontal Silos In Western Kansas, J.T. Dickerson, G. Ashbell, L. Pfaff, K.K. Bolsen, B.E. Brent, J.E. Bradford, R.L. Smith

Kansas Agricultural Experiment Station Research Reports

The top 3 feet from 30 horizontal silos was sampled at three depths to determine top spoilage losses, using ash content as an internal marker. When compared to face samples, corn and forage sorghum silages exhibited similar additional organic matter (OM) losses in the top 18 inches. In the top 18 inches, covering silage reduced spoilage losses of OM from 41 to 27 percentage units compared to uncovered counterparts. Covering corn silage reduced spoilage losses of OM from 49 to 31 and 9 to 1 percentage units in the top and second 18 inches, respectively. Similar reductions in OM losses …

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Effects Of Crop Species On Indigenous Microflora And Of Silage Additives On The Microbial Succession During The Ensiling Process, C. Lin, R.A. Hart, K.K. Bolsen, J.T. Dickerson, B.E. Brent Jan 1991

Effects Of Crop Species On Indigenous Microflora And Of Silage Additives On The Microbial Succession During The Ensiling Process, C. Lin, R.A. Hart, K.K. Bolsen, J.T. Dickerson, B.E. Brent

Kansas Agricultural Experiment Station Research Reports

This study considered the effects of crop species (alfalfa vs. corn) and silage additives on six categories of indigenous microorganisms (those naturally occurring on the crop) important to silage fermentation, and on the microbial succession during the ensiling process. The numbers of streptococci, Enterobacteriaceae, yeasts and molds, lactate-using yeasts, and carbohydrate- fermenting clostridial spores were higher on corn than on alfalfa. The lactic acid bacteria (LAB) comprised less than 2% of the total microbial populations on both crops. Alfalfa treated with Biomate® inoculant and the combination of dextrose and Biomate showed higher LAB counts than the control and dextrose treatments …

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Influence Of Supplemental Fat And Monensin Plus Tylosin On Performance And Carcass Traits Of Finishing Steers, Robert T. Brandt Jr., J.K. Elliott, Tiruvoor G. Nagaraja Jan 1991

Influence Of Supplemental Fat And Monensin Plus Tylosin On Performance And Carcass Traits Of Finishing Steers, Robert T. Brandt Jr., J.K. Elliott, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Interactions between supplemental fat (3.5%) and monensin plus tylosin (25 plus 10 g/ton, respectively) on animal performance and carcass traits were evaluated in a 125-d finishing trial. Interactions on feed consumption (P=.07) and feed efficiency (P=.11) suggested that the ionophore response was diminished in the presence of supplemental fat. Steers fed monensin plus tylosin had a lower (P=.005) incidence of liver abscesses whether fat was fed or not, indicating that supplemental fat had no effect on tylosin activity.

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Performance Of Mid-Lactating Dairy Cows Fed A Grain Sorghum-Soybean Silage Base Diet (1991), H. Hartadi, L. Harbers, John E. Shirley, K. Bolsen Jan 1991

Performance Of Mid-Lactating Dairy Cows Fed A Grain Sorghum-Soybean Silage Base Diet (1991), H. Hartadi, L. Harbers, John E. Shirley, K. Bolsen

Kansas Agricultural Experiment Station Research Reports

Whole-plant silage from intercropped grain sorghum and Williams 82 soybean was compared to corn silage in a mixed diet for mid-lactation dairy cows. Cows fed the grain sorghum-soybean silage yielded 45.13 lb and those fed corn silage yielded 44.05 lb of fat (4%)-corrected milk daily. Milk yield, milk fat, and milk lactose percentages were similar between cows fed the two silages. Protein and solids non-fat percentages for the cows fed the corn silage diet were .09 and .06 units greater than those of cows fed the grain sorghum silage. Cows fed the corn silage tended to gain more (+105.8 lb) …

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Effect Of Feeding Rumen-Escape Lipid To Postpartum Beef Heifers, C.W. Peters, L.R. Corah, R.C. Cochran Jan 1991

Effect Of Feeding Rumen-Escape Lipid To Postpartum Beef Heifers, C.W. Peters, L.R. Corah, R.C. Cochran

Kansas Agricultural Experiment Station Research Reports

Feeding .25, .5, or 1 lb/d of rumen-escape lipid in a range supplement to beef heifers after calving resulted in increased calf weight gain and milk production at 70 d postpartum compared to control or feeding 2 lb daily. As level of rumen-escape lipid increased, plasma cholesterol and triglycerides also increased when measured after 14 and 28 d of lipid feeding. The interval from parturition to standing estrus generally was longer as level of rumen-escape lipid increased. It appears that intermediate levels (.25, .5, or 1 lb/d) of rumen escape lipid can enhance milk production and calf weight gain; however, …

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Seasonal Performance Of Finishing Steers, J. Mintert, Michael R. Langemeier, Ted C. Schroeder Jan 1991

Seasonal Performance Of Finishing Steers, J. Mintert, Michael R. Langemeier, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

Analysis of 10 years of closeouts from a western Kansas feedlot demonstrated that steer performance exhibits significant seasonal variation. Steers weighing 700 to 800 lb when placed on feed in September through December had feed conversions roughly 12% higher than those placed in March and April. Although feed conversion varied seasonally, dry matter feed intake varied much less, causing daily gain to mirror feed conversion. Gain was seasonally highest for steers placed in March and April and lowest for those placed in September through December. Cattle feeders should consider these variations in seasonal performance, as they develop profit projections for …

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Evaluation Of A Portable Mixer And Feed Delivery System (1991), C R. Stark, Robert D. Goodband, Keith C. Behnke Jan 1991

Evaluation Of A Portable Mixer And Feed Delivery System (1991), C R. Stark, Robert D. Goodband, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

An on-farm mixer uniformity study was conducted to determine if feed could be properly mixed and maintained as it went through a bulk bin and conveying equipment over a distance of 180 ft. in a grower-finisher facility. A portable vertical mixer was tested and found to produced a uniformly mixed feed. Uniform feed was then conveyed from a bulk storage bin to feeders inside the facility. Samples were obtained from three different feeders and were tested for uniformity. Results indicate that feed remains uniform as it is conveyed and deposited in feeders over distances of 20, 80, and 180 ft.; …

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On-Farm Feed Uniformity Survey (1991), C R. Stark, J A. Hansen, Robert D. Goodband, Keith C. Behnke Jan 1991

On-Farm Feed Uniformity Survey (1991), C R. Stark, J A. Hansen, Robert D. Goodband, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

An on-farm feed manufacturing survey was conducted in conjunction with a mixer uniformity analysis. The survey collected information on producer size and type of operation, mixer type, manufacturing practices, and feed production. The survey represents 43 participants from across the U.S. Results indicate that 42% of the participants had mixer uniformity coefficients of variation of less than 10%, 47% were between 10-20%. and 11 % had CV's greater than 20%.; Swine Day, Manhattan, KS, November 21, 1991

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Evaluation Of A Rotating Drum Mixer (1991), C R. Stark, C H. Fahrenholz, Keith C. Behnke Jan 1991

Evaluation Of A Rotating Drum Mixer (1991), C R. Stark, C H. Fahrenholz, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

A "rotating drum" type mixer was tested to determine if it could produce a uniformly mixed feed. Feed was manufactured in four separate trials, which examined addition sequence, mixing time, mixer capacity, and liquid addition. Uniformly mixed feed was obtained after 8 min, when ingredients were properly sequenced and mixed. Smaller batch sizes decreased the time required to obtain a uniform mixture. The mixer distributed liquid uniformly through the feed and had excellent clean-out capabilities.; Swine Day, Manhattan, KS, November 21, 1991

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Causes Of Diarrhea, Pneumonia, And Septicemia In Swine For 1991 Submissions To The Ksu Veterinary Diagnostic Laboratory (1991), R K. Frank, M W. Vorhies Jan 1991

Causes Of Diarrhea, Pneumonia, And Septicemia In Swine For 1991 Submissions To The Ksu Veterinary Diagnostic Laboratory (1991), R K. Frank, M W. Vorhies

Kansas Agricultural Experiment Station Research Reports

Causes of pre- and postweaning diarrhea, pneumonia, and bacterial septicemia in pigs were summarized for fiscal year 1991 (July, 1990 to June, 1991) for submissions to the Kansas State University Veterinary Diagnostic Laboratory. Escherichia coli was the most common cause of both pre- and postweaning diarrhea in pigs (33.5% and 25.0%, respectively, of submissions for diarrhea). Other commonly diagnosed causes included transmissible gastroenteritis (24.4%) and coccidiosis (16.5%) for preweaning diarrhea, and proliferative enteritis (19.2 %) and salmonellosis (13.2 %) for postweaning diarrhea. The most commonly diagnosed causes of pneumonia in nursing, growing, and finishing pigs were Pasteurella multocida, Mycoplasma, and …

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Effects Of Porcine Somatotropin And Dietary Phosphorus On Growth And Bone Criteria In Gilts (1991), T L. Weeden, G E. Fitzner, J A. Hansen, K G. Friesen, M E. Johnston, B R. Schricker, Jim L. Nelssen, Robert D. Goodband Jan 1991

Effects Of Porcine Somatotropin And Dietary Phosphorus On Growth And Bone Criteria In Gilts (1991), T L. Weeden, G E. Fitzner, J A. Hansen, K G. Friesen, M E. Johnston, B R. Schricker, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

One hundred-eight gilts with an average initial wt of 129 lb were utilized to determine the effects of porcine somatotropin (pST) and dietary phosphorus on growth performance and bone mineralization and mechanical properties during the finishing phase (129 to 230 lb) and a 35 d post-finishing phase. Gilts were injected daily with placebo (control) or 4 mg pST and fed diets containing .4, .8, or 1.2% P during the finishing phase. Administration of pST improved F/G 18%, increased ADG 8%, and decreased daily feed intake 9%. There was a quadratic response to P, because gilts receiving the .8% P diet …

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Space Requirements Of Finishing Pigs Fed To A Heavier Weight (Removed Individually) (1991), G E. Fitzner, David A. Nichols, Joe D. Hancock, Robert H. Hines Jan 1991

Space Requirements Of Finishing Pigs Fed To A Heavier Weight (Removed Individually) (1991), G E. Fitzner, David A. Nichols, Joe D. Hancock, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

Space allowances of 6, 8, 10, and 12 ft2 were evaluated for pigs fed from 120 to 250 lb. The management system used was to remove pigs individually as they reached 250 lb, which provided increasing space per pig. Using this management system, average daily gain, average daily feed intake, and feed efficiency improved linearly with increasing space allowance. Pigs allowed 6ft2 gained slower, ate less, and required more feed per lb of gain compared to pigs allowed 8, 10, and 12 ft2. Pigs permitted 8, 10, and 12 ft2 were similar in rate of gain, feed consumption, and feed …

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Use Of Agronomic Conditions, Genetics, And Processing To Improve Utilization Of Sorghum Grain (1991), P J. Bramel-Cox, Joe D. Hancock Jan 1991

Use Of Agronomic Conditions, Genetics, And Processing To Improve Utilization Of Sorghum Grain (1991), P J. Bramel-Cox, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Sorghum grain is an extremely important crop to both farmers and livestock feeders in the High-Plains states (e.g., from Nebraska to Texas). Kansas leads the nation in sorghum production, and as should be expected, Kansas State University has a long history of research to improve the utilization and marketability of this versatile and hardy crop. This paper is a synopsis of current research at KSU and other universities concerning production and use of sorghum grain for feeding swine. Topics addressed include the relatively small loss in nutritional value (4 to 11 %) as test weight decreases from 55 to 35 …

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Does Extra Feed After Breeding Affect Litter Size? (1991), Duane L. Davis Jan 1991

Does Extra Feed After Breeding Affect Litter Size? (1991), Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

Fertility was evaluated in sows fed 4 vs 10 lb/d and gilts fed 4 vs 7.4 Ibid during the first 10 days after breeding. No effects on farrowing rate or litter traits were detected. This confirms results of a previous KSU experiment. Therefore, high feed intake after breeding may not affect fertility traits.; Swine Day, Manhattan, KS, November 21. 1991

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Effects Of Porcine Somatotropin Dosage And Lysine Level On Growth Performance Of Growing Pigs (1991), G E. Fitzner, T L. Weeden, B R. Schricker, Robert H. Hines, Jim L. Nelssen, Robert D. Goodband, Joe D. Hancock Jan 1991

Effects Of Porcine Somatotropin Dosage And Lysine Level On Growth Performance Of Growing Pigs (1991), G E. Fitzner, T L. Weeden, B R. Schricker, Robert H. Hines, Jim L. Nelssen, Robert D. Goodband, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Eighty crossbred barrows initially weighing 70.5 lb were used in a 5 wk trial to determine the optimum dosage of porcine somatotropin (PST) required to promote maximum growth response in growing pigs fed diets containing either 1.0 or 2.0% lysine. Pigs received a daily injection of placebo or 2, 4, or 8 mg pST in combination with one of two experimental diets containing either 1.0 or 2.0% dietary lysine. Increasing the dosage of pST of pigs fed both diets resulted in an increase in average daily gain (ADG), a reduction in average daily feed intake (ADFI), and an improvement in …

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Effect Of Fat Source And Level On Finishing Pig Performance (1991), David A. Nichols, Joe D. Hancock, Jim L. Nelssen, Robert H. Hines, Donald H. Kropf Jan 1991

Effect Of Fat Source And Level On Finishing Pig Performance (1991), David A. Nichols, Joe D. Hancock, Jim L. Nelssen, Robert H. Hines, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

Two hundred and forty finishing pigs were utilized to evaluate the effect of fat source and level on growing pig performance and carcass characteristics. Pigs were fed a milo-soybean meal diet balanced on a constant energy:lysine and energy:protein ratio. Dietary treatments were: 1) control; 2,3,4) 2.5, 5.0, or 7.5% added soybean oil; 5 and 6) 5.0 or 7.5% added tallow. In comparing pigs fed soybean oil to tallow, there were no significant effects on feed intake, average daily gain, or feed to gain ratio. Soybean oil additions compared to tallow resulted in carcasses with significantly more average backfat as well …

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Runoff Control From Dirt Lots (1991), Joseph P. Harner, James P. Murphy Jan 1991

Runoff Control From Dirt Lots (1991), Joseph P. Harner, James P. Murphy

Kansas Agricultural Experiment Station Research Reports

A recent water quality survey assessment found nonpoint source pollution problems in a majority of Kansas surface waters - 85% of the monitoring sites were impaired by nutrients, 60% of the sites by bacteria, 55% by suspended solids and/or minerals, and 40% by oxygen-demanding substances. Swine producers have the responsibility to maintain the quality of ground or surface water near their production units. Outdoor dirt lots for confinement of swine are often overlooked as an area needing facilities for water pollution control.; Swine Day, Manhattan, KS, November 21, 1991

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Producing Hogs Under Contract (1991), Michael R. Langemeier Jan 1991

Producing Hogs Under Contract (1991), Michael R. Langemeier

Kansas Agricultural Experiment Station Research Reports

Recently, there has been a renewed interest in contract hog production. Contractors are looking for an effective means to expand production or utilize excess feed production capacity. Producers enter contracts to minimize input cost and market risks or to obtain financing for buildings and equipment. Provisions vary from contract to contract. Producers that are making the decision whether to produce hogs under contract should calculate expected returns for a range of production and cost scenarios. Whatever the contract provisions, producers and contractors should make sure that the contract rewards them for what they do best.; Swine Day, Manhattan, KS, November …

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Use Of Recombinant Bovine Cytokines In Pigs Vaccinated And Challenged With Streptococcus Suis (1991), Frank Blecha, D N. Reddy, C G. Chitko-Mckown, M M. Chengappa, D S. Mcvey, Robert D. Goodband, Jim L. Nelssen Jan 1991

Use Of Recombinant Bovine Cytokines In Pigs Vaccinated And Challenged With Streptococcus Suis (1991), Frank Blecha, D N. Reddy, C G. Chitko-Mckown, M M. Chengappa, D S. Mcvey, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to determine the adjuvanticity of recombinant bovine interleukin-1β (rBoIL-1β) and recombinant bovine interleukin-2 (rBoIL-2) administered in conjunction with a single S. suis vaccination in pigs. Sixty, 4-wk-old pigs were allotted to 8 groups: 1) nonvaccinated controls; 2) vaccinated controls; 3) rBoIL-Iβ, 100 ng/kg; 4)rBoIL-lβ, 1000 ng/kg; 5) rBoIL-1β, 10,000 ng/kg; 6) rBoIL-2, 2.5 µg/kg; 7) rBoIL-2, 25 µg/kg; and 8) rBoIL-2, 250 µg/kg. All pigs (except group 1) were vaccinated on d 0 with a commercial S. suis vaccine (serotypes 1 and 2). At vaccination, pigs were injected intramuscularly with their respective cytokine treatments. Pigs received …

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Effects Of Supplementation Of Nursery Diets With An Essential Fatty Acid On Immunity In Artificially Reared Pigs (1991), D S. Mcvey, G S. Elliot, G A. Kennedy, M M. Chengappa, N V. Anderson, D A. Schoneweis, M M. Hervey, S M. Cowan, Joe D. Hancock Jan 1991

Effects Of Supplementation Of Nursery Diets With An Essential Fatty Acid On Immunity In Artificially Reared Pigs (1991), D S. Mcvey, G S. Elliot, G A. Kennedy, M M. Chengappa, N V. Anderson, D A. Schoneweis, M M. Hervey, S M. Cowan, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Twenty four pigs were weaned immediately at farrowing, reared artificially for 21 d, and then used in a 35-d nursery experiment to determine the effects of essential fatty acid deficiency on immune function. Treatments were: 1) a semi-purified diet deficient in essential fatty acids and 2) diet 1 with 2% added linoleic acid. Conversion of linoleic acid to linolenic and then arachidonic acid is a normal step in fatty acid metabolism. Metabolites of arachidonic acid are thought to have a role in mediating immune function. On d 28 of the experiment, pigs were orally dosed with Salmonella choleraesuis to challenge …

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The Interactive Effects Of Pst And Salbutamol On The Lysine Requirement Of Finishing Pigs (1991_, J A. Hansen, J L. Laurin, Jim L. Nelssen, Robert D. Goodband Jan 1991

The Interactive Effects Of Pst And Salbutamol On The Lysine Requirement Of Finishing Pigs (1991_, J A. Hansen, J L. Laurin, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A metabolism study was conducted to evaluate the interactive effects of daily pST injections and the β-agonist salbutamol on the lysine requirement of finishing pigs based on nitrogen retention. Sixteen finishing pigs (137 lbs initially) were exposed to one of four biological treatments for 32 d. These treatments were: 1) non-treated control; 2) 4 mg/d pST; 3) 2.75 ppm of dietary salbutamol; 4) both salbutamol and pST. Pigs were kept on the same biological treatment and offered one of four diets for an 8 d period in a Latin square arrangement. Diets were formulated to contain .8, 1.2, 1.6, and …

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The Influence Of Dietary Threonine On Growth Performance And Carcass Characteristics Of Pst-Treated Finishing Pigs (1991), J L. Laurin, J A. Hansen, B R. Schricker, Robert D. Goodband, Jim L. Nelssen Jan 1991

The Influence Of Dietary Threonine On Growth Performance And Carcass Characteristics Of Pst-Treated Finishing Pigs (1991), J L. Laurin, J A. Hansen, B R. Schricker, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Eighty crossbred barrows (initial wt = 131 lb) were utilized to determine the dietary threonine requirement of finishing pigs injected with porcine somatotropin (PST). Barrows were injected daily in the extensor muscle of the neck with either 4 mg pST or a placebo and fed diets containing either .45, .55, .65, or .75% threonine. All other amino acids, vitamins, and minerals were calculated to be at least double current requirements for finishing pigs so as not to limit performance. Pigs were housed in an open-sided building with two pigs per pen and five replications of the eight treatments. Feed and …

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