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Life Sciences

Kansas Agricultural Experiment Station Research Reports

Journal

1991

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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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Heifer Feeding And Management Affect Efficiency (1991), James R. Dunham Jan 1991

Heifer Feeding And Management Affect Efficiency (1991), James R. Dunham

Kansas Agricultural Experiment Station Research Reports

Heifer feeding and management programs have a great impact on the efficiency of the future dairy herd. Dairies that feed and manage heifers for calving at about 24 mo of age are optimizing milk production, feed cost for raising heifers, number of replacement heifers available, and return on investment. Replacement heifers represent a considerable investment in labor and feed, with no return on that investment until they freshen. A summary of Kansas DHIA Holstein herds shows that some herds are receiving a good return on investment as early as 22 mo of age, whereas other herds are not reaping any …

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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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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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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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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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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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Effects Of Daily Porcine Somatotropin Administration On The Lysine Requirement Of Growing Pigs (1991), G E. Fitzner, T L. Weeden, K G. Friesen, Robert H. Hines, Jim L. Nelssen, Robert D. Goodband, Donald H. Kropf, Joe D. Hancock Jan 1991

Effects Of Daily Porcine Somatotropin Administration On The Lysine Requirement Of Growing Pigs (1991), G E. Fitzner, T L. Weeden, K G. Friesen, Robert H. Hines, Jim L. Nelssen, Robert D. Goodband, Donald H. Kropf, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

One-hundred twenty crossbred barrows initially weighing 68.7 lb were used to determine the lysine requirement of growing pigs injected with 5 mg/d porcine somatotropin (PST) during a 5-wk growth trial. Pigs received one of six levels of dietary lysine (.7, 1.1, 1.5, 1.9,2.3, or 2.7%) and were injected daily with either 5 mg pST or placebo. During the 5 wk trial, pST-injected pigs had increased average daily gain (ADG), decreased average daily feed intake (ADFI), and improved feed conversion (F/G) compared with placebo-injected pigs. With increasing dietary lysine, ADFI of pigs injected with both pST and placebo was reduced. Pigs …

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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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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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Selection For Increased In Vitro Digestibility Improves Feeding Value Of Sorghum Grain (1991), B J. Healy, P J. Bramel-Cox, B T. Richert, C F. Klopfenstein, Merle D. Witt, Joe D. Hancock Jan 1991

Selection For Increased In Vitro Digestibility Improves Feeding Value Of Sorghum Grain (1991), B J. Healy, P J. Bramel-Cox, B T. Richert, C F. Klopfenstein, Merle D. Witt, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Six cannulated barrows and two hundred eighty-eight chicks were used in an experiment to determine the value of an in vitro protein digestibility assay (pepsin digest) for identification of sorghum parent lines with improved nutritional value. The barrows were used to determine digestibility of the experimental sorghums at the terminal ileum and for the total digestive tract. Due to a limited supply of the sorghums, broiler chicks were used as a model to predict the value of the experimental sorghums for growth performance. Four sorghum parent lines were selected from 100 SI families grown at several locations in Kansas. Two …

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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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Effects Of Pelleting Low-Lysine Diets With Fermentation Products For Weanling Pigs (1991), Joe D. Hancock, Daniel Y.C. Fung, R A. Hart, M T. Manninen Jan 1991

Effects Of Pelleting Low-Lysine Diets With Fermentation Products For Weanling Pigs (1991), Joe D. Hancock, Daniel Y.C. Fung, R A. Hart, M T. Manninen

Kansas Agricultural Experiment Station Research Reports

One hundred twenty pigs (13.2 lb avg initial wt) were used in an experiment to determine the effects of pelleting on the ability of fermentation products to improve growth performance of nursery-age pigs fed low-lysine diets. Treatments were: 1) positive control (1.15 and .95% lysine for d 0 to 14 and 14 to 35, respectively); 2) diet 1 pelleted; 3) low-lysine regimen (1.05 and .85% lysine for d 0 to 14 and 14 to 35, respectively) supplemented with fermentation product (FP)l; 4) diet 3 pelleted; 5) low-lysine regimen supplemented with modified fermentation product (MFP)2; and 6) diet 5 pelleted. For …

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Effects Of A Grind & Mix High Nutrient Density Diet On Starter Pig Performance (1991), Frank Blecha, D N. Reddy, C G. Chitko-Mckown, M M. Chengappa, D S. Mcvey, Robert D. Goodband, Jim L. Nelssen Jan 1991

Effects Of A Grind & Mix High Nutrient Density Diet On Starter Pig Performance (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

Two 4-wk growth trials utilizing 520, 21-d old weanling pigs (22 ± 2 d and 13.7 lb) were conducted to evaluate either grind & mix (meal form) or pelleted high nutrient density diets on growth performance. One half of the pigs were fed a standard (20% dried whey and 10% plasma protein) high nutrient density diet (HNDD1) either in a pelleted or meal form. The other half received a high nutrient density diet (HNDD2; either pelleted or meal form) formulated with ingredients having greater flowability characteristics in order to determine if pelleting is necessary for pigs fed high nutrient density …

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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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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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Optimum Particle Size Of Corn And Hard And Soft Sorghum Grain For Nursery Pigs And Broiler Chicks (1991), B J. Healy, P J. Bramel-Cox, G A. Kennedy, Joe D. Hancock, Keith C. Behnke Jan 1991

Optimum Particle Size Of Corn And Hard And Soft Sorghum Grain For Nursery Pigs And Broiler Chicks (1991), B J. Healy, P J. Bramel-Cox, G A. Kennedy, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

A total of 240 weanling pigs (avg initial wt of 11.7 lb) was used to determine the effects of particle size of corn and two sorghum genotypes on growth performance. In addition to the pig feeding experiment, 420 broiler chicks (avg initial wt of .15 lb) were fed the same grain treatments to determine if they were a reliable model for the effects of diet particle size on nursery pig performance. Milling characteristics of the cereal grains were measured. Treatments were corn, hard endosperm sorghum, and soft endosperm sorghum, ground to particle sizes of 900, 700, 500, and 300 µm …

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Comparison Of Protein Sources For Phase Ii Starter Diets (1991), J A. Hansen, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1991

Comparison Of Protein Sources For Phase Ii Starter Diets (1991), J A. Hansen, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

A total of 432 weanling pigs (initially 15.3 lb and 21 d of age) was used in a growth trial to compare various protein sources in the Phase II starter diet. During Phase I (0 to 7 d post-weaning), all pigs were fed a common high nutrient density diet containing 1.5% lysine, 10% porcine plasma, 10% lactose, and 20% dried whey. During Phase II (7 to 28 d post-weaning), pigs were fed one of six experimental diets. All Phase II diets contained 10% dried whey and were formulated to 1.18% lysine. The positive control diet contained 4% menhaden fish meal …

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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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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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The Effects Of An "Ideal Protein" Lactation Diet On Sow And Litter Performance (1991), J L. Laurin, J A. Hansen, R D. Richards, C E. Huffman, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1991

The Effects Of An "Ideal Protein" Lactation Diet On Sow And Litter Performance (1991), J L. Laurin, J A. Hansen, R D. Richards, C E. Huffman, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Four hundred lactating sows were used to determine the influence of an ideal protein lactation diet on sow productivity. Sows were fed either a 15.8% crude protein, corn soybean meal, control diet or a 12.6% protein diet supplemented with synthetic amino acids to a 15.8% crude protein equivalent. Lactation diet had no influence on litter weaning wt (114.5 vs 114.7 lb), daily feed intake (12.5 vs 12.7 lb), pig survivability (92.3 vs 93.1 %), or sow backfat loss (.11 vs .12 in). However, sows fed the ideal protein diet lost more weight than sows fed the control diet (18.6 vs …

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One-Day Supplementation With Tyrosine Did Not Affect Reproductive Traits Of Sows (1991), I Rettmer, Jeffrey S. Stevenson, Robert D. Goodband, Duane L. Davis Jan 1991

One-Day Supplementation With Tyrosine Did Not Affect Reproductive Traits Of Sows (1991), I Rettmer, Jeffrey S. Stevenson, Robert D. Goodband, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

Primiparous and multiparous sows received a single dietary supplement of L-tyrosine in their feed on the day after weaning, and the effects on various reproductive traits were evaluated. Sows received either none (control; n = 21) or 45.5 mg L-tyrosine/lb BW (tyrosine; n = 22) on the day after weaning. In Exp. 1, days from weaning to estrus (5.1 ± 1 vs 5.3 ± .9 d) and ovulation rate (number of corpora lutea on ovaries on d 5 after estrus) (16.3 ± 4.4 vs 16.2 ± 4) were similar in control and tyrosine-supplemented sows. In Exp. 2, (control; n = …

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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 effeciency 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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Extrusion Of Sorghum, Soybean Meal, And Whole Soybeans Improves Growth Performance And Nutrient Digestibility In Finishing Pigs (1991), Terry L. Gugle, Robert H. Hines, Joe D. Hancock Jan 1991

Extrusion Of Sorghum, Soybean Meal, And Whole Soybeans Improves Growth Performance And Nutrient Digestibility In Finishing Pigs (1991), Terry L. Gugle, Robert H. Hines, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

One hundred forty-four finishing pigs (124 lb avg initial wt) were used to determine the effects of extruding sorghum, soybean meal (SBM), and whole soybeans on growth performance and nutrient digestibility. Treatments were: 1) control diet with ground sorghum, SBM, and soybean oil; 2) diet 1 with the ground sorghum, SBM, and soybean oil blended and extruded; 3) sorghum and whole soybeans extruded separately and blended; and 4) sorghum and extruded soybeans blended and extruded together. Extrusion was in an Insta-Pro® extruder. All diets were formulated to be equal in concentrations of metabolizable energy (ME) and lysine. Pigs fed diets …

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Comparison Of Conventional And Low-Inhibitor Soybeans With Different Heat Treatments And Lysine Concentrations In Diets For Finishing Pigs (1991), M A. Giesemann, B J. Healy, A J. Lewis, Joe D. Hancock Jan 1991

Comparison Of Conventional And Low-Inhibitor Soybeans With Different Heat Treatments And Lysine Concentrations In Diets For Finishing Pigs (1991), M A. Giesemann, B J. Healy, A J. Lewis, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the effects of gene expression for the Kunitz trypsin inhibitor, heat treatment, and concentration of lysine in the diet on nutritional value of soybeans for finishing pigs. In Experiment 1, 108 pigs (113 lb avg initial wt) were fed diets with two soybean cultivars (Williams 82 and Amsoy 71), with (+K) and without (-K) gene expression for the Kunitz trypsin inhibitor, subjected to three heat treatments (1/2-, 3/4-, and full-roasting). Nutritional value of the Williams 82 and Amsoy 71 cultivars was not different, but -K soybeans were superior to +K soybeans at all levels …

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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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Selection For Increased In Vitro Digestibility Improves Feeding Value Of Sorghum Grain (1991), B J. Healy, P J. Bramel-Cox, B T. Richert, C F. Klopfenstein, Merle D. Witt, Joe D. Hancock Jan 1991

Selection For Increased In Vitro Digestibility Improves Feeding Value Of Sorghum Grain (1991), B J. Healy, P J. Bramel-Cox, B T. Richert, C F. Klopfenstein, Merle D. Witt, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Six cannulated barrows and two hundred eighty-eight chicks were used in an experiment to determine the value of an in vitro protein digestibility assay (pepsin digest) for identification of sorghum parent Iines with improved nutritional value. The barrows were used to determine digestibility of the experimental sorghums at the terminal ileum and for the total digestive tract. Due to a limited supply of the sorghums, broiler chicks were used as a model to predict the value of the experimental sorghums for growth performance. Four sorghum parent lines were selected from 100 SI families grown at several locations in Kansas. Two …

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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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