Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

2004

PDF

Swine day

Articles 1 - 28 of 28

Full-Text Articles in Life Sciences

Effects Of Increasing Meat And Bone Meal On Finishing-Pig Growth Performance, R O. Gottlob, C W. Hastad, K R. Lawrence, C N. Groesbeck, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2004

Effects Of Increasing Meat And Bone Meal On Finishing-Pig Growth Performance, R O. Gottlob, C W. Hastad, K R. Lawrence, C N. Groesbeck, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 156 finishing pigs (72 barrows and 84 gilts, initially 110 lb) were used to determine the effects on growth performance of increasing meat and bone meal. Pigs were housed in an environmentally regulated finishing building, with two pigs per pen. There were six pens of barrows and seven pens of gilts per treatment. Pigs were blocked by initial weight and sex, and then allotted to one of six dietary treatments. The dietary treatments were based on corn-soybean meal, were formulated on a true-ileal-digestible (TID) lysine basis, and were fed in three phases. In each phase, diets contained ...


Effect Of Carnichrome® On Growth Performance Of Weanling Pigs In A Commercial Environment, N Z. Frantz, J C. Woodworth, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz Jan 2004

Effect Of Carnichrome® On Growth Performance Of Weanling Pigs In A Commercial Environment, N Z. Frantz, J C. Woodworth, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A 43-day growth study with a total of 384 weanling pigs (14 ± 2 d of age) was conducted to evaluate the effects of Carnichrome®, a combination of L-carnitine and chromium picolinate, on growth performance of weanling pigs. Secondary objectives were to compare pigs fed diets with or without a feed-grade medication, evaluate any interactive effects between Carnichrome and medication, and identify any carryover effect once medication was withdrawn from the diet. Experimental diets were arranged in a 2 × 3 factorial to compare the main effects of medication (none or Denagard/CTC, 35/400 g/ton) and Carnichrome (none ...


Comparison Of Heart Girth Or Flank-To-Flank Measurements For Predicting Sow Weight, T Iwasawa, M G. Young, T P. Keegan, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2004

Comparison Of Heart Girth Or Flank-To-Flank Measurements For Predicting Sow Weight, T Iwasawa, M G. Young, T P. Keegan, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

In previous Swine Day Reports we have demonstrated that feeding sows in gestation on the basis of body weight and backfat thickness is more precise and economical than methods of feeding based on visual observation of body-condition score. To simplify the weight and backfat procedure, we have estimated sow weight based on the correlation between heart girth (circumference of the sow measured behind the front legs) and weight. The objective of this study was to determine if a different sow measurement, flank to flank, would be as accurate as the heart-girth measurement. Sows were weighed and measured behind the front ...


Effects Of Salt Particle Size And Sample Preparation On Results Of Mixer-Efficiency Testing, C N. Groesbeck, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2004

Effects Of Salt Particle Size And Sample Preparation On Results Of Mixer-Efficiency Testing, C N. Groesbeck, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to evaluate the effects of using salt with different particle sizes and of using different samplepreparation methods on mixer-efficiency testing (time required to achieve a coefficient of variation (CV) of 10% or less among 10 feed samples). A 3000-lb capacity horizontal ribbon mixer was used to mix batches of feed. Ten samples were collected at eight times during mixing (0.0, 0.5, 1.0, 2.0, 3.5, 5.5, 8.0, and 10.5 min) after all ingredients were added from pre-determined locations in the mixer. Coefficient of variation was used to measure mixer ...


The Effects Of Different Feed-Grade Antibiotics On Growth Performance Of Weanling Pigs In A Research Environment, R O. Gottlob, C W. Hastad, C N. Groesbeck, K R. Lawrence, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2004

The Effects Of Different Feed-Grade Antibiotics On Growth Performance Of Weanling Pigs In A Research Environment, R O. Gottlob, C W. Hastad, C N. Groesbeck, K R. Lawrence, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 168 weanling pigs (initially 13.8 lb and 21 ± 3 d of age, PIC) were used to determine the effects of different feed-grade antibiotics on nursery-pig performance. Pigs were fed one of four experimental diets: control with no antibiotics; or the control diet with added Denagard/CTC (35 g/ton Denagard™, 400 g/ton Chlortetracycline); Neo-Terramycin® (140 g/ton Neomycin Sulfate, 140 g/ton Oxytetracycline HCl); or Mecadox® (Carbadox, 50 g/ton). Overall (d 0 to 28 after weaning), pigs fed diets containing Denagard/ CTC or Neo-Terramycin® had greater ADG and ADFI (P<0.05) than did pigs fed all other diets, and had improved F/G (P<0.05), compared with that of pigs fed the control diet. Also, pigs fed diets containing Mecadox® had improved ADG and F/G (P<0.05) compared with those of pigs fed the control diet. The addition of feed-grade antibiotics in swine diets resulted in improved growth performance, and pigs fed Denagard/CTC or Neo-Terramycin® had the greatest improvement in growth performance.; Swine Day, 2004, Kansas State University, Manhattan, KS, 2004


Determining The Optimal Lysine To Calorie Ratio For Growth Performance Of 20- To 50-Lb Genetiporc Nursery Pigs, J D. Schneider, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2004

Determining The Optimal Lysine To Calorie Ratio For Growth Performance Of 20- To 50-Lb Genetiporc Nursery Pigs, J D. Schneider, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to evaluate the effects of increasing dietary lysine and energy density on nursery-pig performance. Exp. 1 was organized as a combination of two simultaneous experiments, with one set of diets consisting of five treatments with increasing TID lysine (0.99, 1.07, 1.14, 1.22, and 1.30%) concentrations, and the second set of diets consisting of five treatments with increasing energy density (1342, 1406, 1471, 1535, and 1600 kcal/lb). The highest l of both lysine and energy density (1.30% and 1600 kcal/lb, respectively) were combined as one diet and used in ...


Effects Of Increasing Dried Distiller’S Grains On Feed Intake, C W. Hastad, N Z. Frantz, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz Jan 2004

Effects Of Increasing Dried Distiller’S Grains On Feed Intake, C W. Hastad, N Z. Frantz, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Recent studies have shown that dried distiller’s grains with solubles (DDGS) has an ME value similar to that of corn, but pigs fed diets with DDGS have a lesser feed intake than do those fed corn. We conducted three studies to evaluate the effects of DDGS on palatability and feed intake of growing pigs. In Exp. 1, 90 gilts (initially 58.2 lb) were used to evaluate the effects of a diet based on cornsoybean meal, alone or with 30% DDGS from two different sources, on feed preference. Source 1 DDGS was obtained from an ethanol plant built before ...


Influence Of Chromium Source On Plasma Non-Esterified Fatty Acid Concentrations In Growing-Finishing Pigs, C N. Groesbeck, K R. Lawrence, F Valdez, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2004

Influence Of Chromium Source On Plasma Non-Esterified Fatty Acid Concentrations In Growing-Finishing Pigs, C N. Groesbeck, K R. Lawrence, F Valdez, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 150 pigs (PIC, initial body weight 178.9 ± 14.7 lb) were used in a 35-d study to evaluate the effect of chromium propionate and chromium tripicolinate on plasma non-esterifed fatty acids (NEFA) in growing-finishing pigs. Our objective was to determine if differences between sources and rate of source being fed can be detected in fasted growing-finishing pigs by measuring plasma NEFA. Pigs were randomly allotted to one of the five dietary treatments arranged as a 2 × 2 factorial plus negative control (no chromium). Main effects were source of chromium (chromium propionate and chromium tripicolinate ...


Evaluating Oregano Oil As A Growth Enhancer In Nursery Pig Diets, C R. Neill, C N. Groesbeck, K R. Lawrence, C W. Hastad, R O. Gottlob, B M. Hildabrand, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2004

Evaluating Oregano Oil As A Growth Enhancer In Nursery Pig Diets, C R. Neill, C N. Groesbeck, K R. Lawrence, C W. Hastad, R O. Gottlob, B M. Hildabrand, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 224 nursery pigs (PIC L 327L × C22) initially 12.9 ± 3.0 lb and 21 d of age were used in a 28-d feeding trial. The objective of our study was to evaluate the effects of oregano oil, with or without an in-feed antimicrobial. Oregano oil is a plant extract derived from the Greek herb, Origanum vulgare. It has been speculated to have antimicrobial-like activity. There were four dietary treatments in a 2 × 2 factorial. Diets consisted of a negative control (without an antibiotic or oregano oil), the control diet plus neomycin/oxytetracycline (140 ...


Evaluation Of The Optimal True-Ileal-Digestible Lysine And Threonine Requirement For Nursery Pigs, N A. Lenehan, J L. Usry, C W. Hastad, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2004

Evaluation Of The Optimal True-Ileal-Digestible Lysine And Threonine Requirement For Nursery Pigs, N A. Lenehan, J L. Usry, C W. Hastad, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1800 pigs (Exp 1, 360; Exp. 2, 1440) were used in two experiments to evaluate the true ileal digestible (TID) lysine and threonine requirement for 24- to 44-lb pigs. In Exp. 1, there were eight pens per treatment, with five pigs (Genetiporc, initially 23.6 lb and 34 d of age) per pen. Experiment 1 was conducted as a combination of two separate trials to simultaneously examine both the TID lysine and threonine requirement, and hence, determine the appropriate threonine-to-lysine ratio. The first part of the trial consisted of five treatments formulated to contain 0.9, 1 ...


Effects Of Ratio Of Total Sulfur Amino Acid To Lysine On Finishing-Pig Growth Performance, K R. Lawrence, C N. Goesbeck, C R. Neill, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz Jan 2004

Effects Of Ratio Of Total Sulfur Amino Acid To Lysine On Finishing-Pig Growth Performance, K R. Lawrence, C N. Goesbeck, C R. Neill, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

The objective of this study was to characterize the growth response to total sulfur amino acids (TSAA) and lysine simultaneously to estimate the true-ileal-digestible (TID) TSAA-to-lysine ratio in early finishing pigs. One hundred and twenty-six pigs were used in a 27-d growth study. Pigs (73 to 134 lb) were blocked by sex and weight and were allotted to one of nine dietary treatments with five TID lysine (0.79, 0.87, 0.94, 1.02 and 1.10%) and five TID TSAA (0.53, 0.57, 0.61, 0.66 and 0.70%) concentrations. The highest lysine (1.10%) and ...


Effect Of Dietary L-Carnitine And Ractopamine-Hcl (Paylean) On The Metabolic Response To Handling In Growing-Finishing Pigs, B W. James, J C. Woodworth, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2004

Effect Of Dietary L-Carnitine And Ractopamine-Hcl (Paylean) On The Metabolic Response To Handling In Growing-Finishing Pigs, B W. James, J C. Woodworth, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two experiments (384 pigs) were conducted to determine the interactive effect of dietary L-carnitine and ractopamine·HCl (Paylean) on the metabolic response to handling. Experiments were arranged as split plots, with handling as the main plot and diet as subplots (4 pens/treatment). Dietary Lcarnitine (0 or 50 ppm) was fed from 85 lb to the end of the trials (260 lb) and Paylean (0 or 20 ppm) was fed for the last 4 wk of each trial. At the end of each trial, two pigs per pen were assigned to one of two handling treatments. Gentle-handled pigs were moved ...


The Effect Of A Probiotic, Ke-01, And Neoterramycin On Nursery Pig Growth Performance, N Z. Frantz, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz Jan 2004

The Effect Of A Probiotic, Ke-01, And Neoterramycin On Nursery Pig Growth Performance, N Z. Frantz, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A 35-d growth study with a total of 168 weanling pigs (21 ± 2 d of age) was conducted to determine the effects of feeding a probiotic, (KE-01) and an antibiotic, Neoterramycin (neomycin 140 g/ton, oxytetracycline 140 g/ton), on nursery pig performance. Experimental treatments were arranged in a 2 × 2 factorial with main effects of antibiotic (none or neomycin 140g/ton and oxytetracycline 140g/ton) or probiotic (none or KE-01, 0.35%). KE-01 is a probiotic containing a novel strain of lactobacillus casei. A KE-01 by Neoterramycin interaction was observed for ADFI (P<0.05) from d 14 to 35, but no other interactions were detected. From d 0 to 14, pigs fed diets containing Neoterramycin had improved (P<0.01) ADG, ADFI, and F/G compared with those of pigs fed diets without Neoterramycin. Pigs fed diets containing KE- 01 had similar growth performance to that of pigs fed diets without KE-01. From d 14 to 35, pigs fed diets containing Neoterramycin had increased ADG compared with that of pigs fed diets without Neoterramycin. The ADG of pigs fed diets containing KE-01 did not differ from that of pigs fed diets without KE-01. There was a tendency for pigs fed KE- 01 to consume less feed, whereas pigs fed Neoterramycin ate more (KE-01 × Neoterramycin interaction, P<0.05). Pigs fed diets containing KE-01 tended to have improved F/G (P<0.07), compared with that of pigs fed diets without KE-01. Overall, d 0 to 35, pigs fed diets containing Neoterramycin had increased ADG and ADFI (P<0.01), compared with those of pigs fed diets without Neoterramycin. In addition, pigs fed diets containing KE-01 had similar ADG and ADFI to those of pigs fed diets without KE-01. Pigs fed diets containing KE-01 had improved F/G (P<0.03), compared with that of pigs fed diets without KE-01. In summary, the probiotic, KE-01, did not significantly increase ADG or ADFI, but did improve F/G because it slightly lowered feed intakes. Neoterramycin improved ADG, ADFI, and F/G, compared with those of diets without Neoterramycin in this study.; Swine Day, 2004, Kansas State University, Manhattan, KS, 2004


The Optimal True-Ileal-Digestible Lysine And Total Sulfur Amino Acid Requirement For Nursery Pigs Between 20 And 50 Lb, J D. Schneider, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2004

The Optimal True-Ileal-Digestible Lysine And Total Sulfur Amino Acid Requirement For Nursery Pigs Between 20 And 50 Lb, J D. Schneider, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted with 360 pigs (PIC, avg BW = 22.7 lb) to determine the appropriate true-ileal-digestible (TID) lysine and total sulfur amino acid (TSAA) requirement of nursery pigs, and consequently to determine the optimal TSAA-to-lysine ratio. This trial was organized as a combination of two simultaneous experiments, with one set of diets consisting of five treatments with increasing TID lysine (0.9, 1.0, 1.1, 1.2, and 1.3%) and the second set of diets consisting of five treatments with increasing TID TSAA (0.56, 0.62, 0.68, 0.74, and 0.81%). The highest ...


The Optimal True-Ileal-Digestible Lysine And Total Sulfur Amino Acid Requirement For Finishing Pigs Fed Paylean®, N Z. Frantz, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2004

The Optimal True-Ileal-Digestible Lysine And Total Sulfur Amino Acid Requirement For Finishing Pigs Fed Paylean®, N Z. Frantz, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1887 pigs (PIC 337 × C22; 213 lb initial BW) were used in a 28-d growth assay to simultaneously examine both the true-ileal-digestible (TID) lysine and TID total sulfur amino acid (TSAA) requirements. The objective was to determine the appropriate TID TSAA-to-lysine ratio in finishing pigs fed Paylean® (4.5 g/ton) to maximize growth performance and carcass composition. Four TID lysine (0.66. 0.79, 0.92, and 1.05%) and four TID TSAA (0.47, 0.52, 0.57, and 0.63%) concentrations were evaluated. The highest lysine and TSAA concentrations were combined in the ...


Using Regumate To Control Estrus In Swine, Duane L. Davis Jan 2004

Using Regumate To Control Estrus In Swine, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

Altrenogest, marketed for use in horses as Regumate, is a synthetic progestin that is marketed for use in pigs as MATRIX. It effectively regulates the occurrence of estrus in randomly cycling gilts if it is provided for 14 or more days at a daily dose of 15 mg/day. It is important to assure that each gilt receives her full dose; otherwise problems of cystic follicles and reduced fertility may be observed.; Swine Day, 2004, Kansas State University, Manhattan, KS, 2004


Using Mixer Efficiency Testing To Evaluate Feed Segregation In Feed Lines, C N. Groesbeck, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz Jan 2004

Using Mixer Efficiency Testing To Evaluate Feed Segregation In Feed Lines, C N. Groesbeck, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to evaluate potential diet segregation in feed lines by measuring coefficient of variation (CV) and mean salt concentration. The facility was a 1500-head gestation barn with nine feed lines, transected by a central feed line that conveyed feed from one of two bulk bins. Quantab® chloride titrators were used to analyze the chloride concentration (salt) from samples collected at pre-determined feed line locations at various distances from the bulk bins. Thirty samples were collected from three feed lines (row 1, 5, and 9), ten samples were collected from drop boxes close to the central feed line ...


The Optimal True-Ileal-Digestible Lysine And Threonine Requirements For Growing-Finishing Pigs From 80 To 130 And 170 To 230 Pounds, N Z. Frantz, J L. Usry, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2004

The Optimal True-Ileal-Digestible Lysine And Threonine Requirements For Growing-Finishing Pigs From 80 To 130 And 170 To 230 Pounds, N Z. Frantz, J L. Usry, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 4388 pigs (PIC 337 × C22; Exp. 1: 1070 gilts, initially 79 lb BW; Exp. 2: 3318 pigs, initially 170 lb BW) were used in 28-d growth assays to examine both the true-ileal-digestible (TID) lysine and threonine requirements, and then determine the appropriate TID threonine-to-lysine ratio in growing-finishing pigs from 80 to 130 lb and 170 to 230 lb. In Exp. 1, four TID lysine (0.71. 0.81, 0.91, and 1.01%) and five TID threonine (0.50, 0.56, 0.62, 0.68 and 0.74%) concentrations were evaluated. In Exp. 2, four TID ...


Interactive Effects Between Pantothenic Acid And Ractopamine Hcl (Paylean®) On Growth Performance And Carcass Characteristics Of Growing-Finishing Pigs, C N. Groesbeck, B W. James, T P. Keegan, K R. Lawrence, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2004

Interactive Effects Between Pantothenic Acid And Ractopamine Hcl (Paylean®) On Growth Performance And Carcass Characteristics Of Growing-Finishing Pigs, C N. Groesbeck, B W. James, T P. Keegan, K R. Lawrence, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to evaluate the interactive effects between added pantothenic acid and ractopamine HCl (Paylean®) on growth performance and carcass traits of growing-finishing pigs. In Exp. 1, 156 pigs (PIC, initial BW = 56.7 ± 5.8 lb) were used in a 2 × 3 factorial with ractopamine HCl (RAC; 0 or 10 ppm) and added pantothenic acid (PA; 0, 22.5, or 45 ppm). Pigs were fed the assigned PA concentrations from 56.7 to 268.1 lb (d 0 to 98), and were fed RAC for the last 28 d before slaughter. Increasing added PA had ...


Growth Performance Of Nursery Pigs Fed Biosaf Yeast Alone Or In Combination With In-Feed Antimicrobial, B M. Hildabrand, C R. Neill, T E. Burkey, B J. Johnson, J Ernest Minton, Steven S. Dritz Jan 2004

Growth Performance Of Nursery Pigs Fed Biosaf Yeast Alone Or In Combination With In-Feed Antimicrobial, B M. Hildabrand, C R. Neill, T E. Burkey, B J. Johnson, J Ernest Minton, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 210 pigs were used in a 28-d growth study to evaluate the effects of feeding the combination antibiotic neomycin and oxytetracycline (Neo-Terra), different rates of BIOSAF yeast (0.15% or 0.3%), and the combination of Neo-Terra and BIOSAF in nursery diets. Overall, pigs fed the diet containing both Neo-Terra and 0.15% BIOSAF had greater ADG and ADFI than did pigs fed the control diet and pigs fed either concentration of BIOSAF alone (P<0.05). Furthermore, over the entire trial, pigs fed the diet containing both Neo-Terra and BIOSAF also tended to have greater ADG and ADFI than did pigs fed only Neo-Terra (P = 0.15). Pigs fed Neo-Terra had greater ADG and ADFI than did pigs fed the control diet and the diet containing 0.15% BIOSAF, but both ADG and ADFI were similar between pigs fed Neo-Terra and pigs fed 0.3% BIOSAF. Whereas BIOSAF fed alone did not significantly improve growth performance over that of control pigs, pigs fed the diet combining both Neo-Terra and 0.15% BIOSAF had a 16% improvement in ADG, compared with that of pigs fed the control diet, and had a trend for an improvement in ADG, compared with that of pigs fed the diet containing Neo-Terra without added yeast. Thus, in nursery settings where Neo-Terra will be added, addition of 0.15% BIOSAF to diets could enhance growth performance. The overall growth performance of pigs fed 0.3% BIOSAF yeast was intermediate to that of pigs fed the control diet and pigs fed the diet containing Neo-Terra. Additional research will be required to determine definitively if a rate at, or close to, 0.3% BIOSAF can be added to nursery diets to approach growth performance observed with Neo-Terra.; Swine Day, 2004, Kansas State University, Manhattan, KS, 2004


Feeding L-Carnitine To Gestating Sows Alters The Insulin-Like Growth-Factor System In Cultured Porcine Embryonic Muscle Cells Isolated From Fetal Skeletal Muscle, A T. Waylan, B J. Johnson, D P. Gnad, J C. Woodworth Jan 2004

Feeding L-Carnitine To Gestating Sows Alters The Insulin-Like Growth-Factor System In Cultured Porcine Embryonic Muscle Cells Isolated From Fetal Skeletal Muscle, A T. Waylan, B J. Johnson, D P. Gnad, J C. Woodworth

Kansas Agricultural Experiment Station Research Reports

The objective was to determine the effects of L-carnitine on cell proliferation and on messenger RNA (mRNA) concentrations in the insulin-like growth factor (IGF) system. Cultured porcine embryonic myoblasts (PEM) were isolated from fetuses at mid-gestation from sows fed a common gestation diet with a 50-g top dress of 0 (control, n = 6) or 100 mg of L-carnitine (n = 6). Proliferation of PEM was evaluated at 36, 48, 60, and 72 h postplating. Real-time quantitative PCR was used to determine growth factor mRNA concentrations in culture. The number of cells/cm2 did not differ (P>0.05) from sows fed ...


Evaluation Of Topical Antioxidants And Packaging Materials To Decrease The Incidence Of Bone Discoloration In Pork Retail Cuts, C R. Raines, Michael E. Dikeman Jan 2004

Evaluation Of Topical Antioxidants And Packaging Materials To Decrease The Incidence Of Bone Discoloration In Pork Retail Cuts, C R. Raines, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Color characteristics were evaluated on 48 pork backbones. After 6 d postmortem, six 1- inch-thick sections of lumbar vertebrae were cut from each backbone. Lumbar vertebrae were treated with different concentrations of ascorbic acid, with combination treatments of ascorbic acid and natural antioxidants, or left untreated. Bones were packaged in one of three systems: high-oxygen modifiedatmosphere packaging (MAP), ultra-lowoxygen MAP, or polyvinyl chloride (PVC) overwrap trays. Bones were visually evaluated by a trained panel on d 0, 1, 2, 3, 4, 5, and 8. Lightness (L*) was also measured on d 0, 2, and 8 of display. After 8 d ...


Effects On Overall Performance Of Feeding Commercially Grown Pigs Less Or More Than Their Lysine Requirement In Early And Late Finishing, R G. Main, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2004

Effects On Overall Performance Of Feeding Commercially Grown Pigs Less Or More Than Their Lysine Requirement In Early And Late Finishing, R G. Main, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1154 gilts (PIC L337 × C22, initially 72.3 ± 1.7 lb) were used to determine effects on subsequent growth performance of feeding less than or at the estimated lysine requirement for optimal growth and feed efficiency in early finishing (70 to170 lb). From d 0 to 27 and d 27 to 55, pigs were fed a diet containing 2.75 and 2.25 g lysine/Mcal ME, respectively, which was less than their estimated requirement. Pigs fed at their estimated requirements were provided diets containing 3.30 and 2.75 g lysine/Mcal ME from ...


Effects Of Increasing Pantothenic Acid On Growth Performance And Carcass Characteristics Of Finish Pigs Reared In A Commercial Environment, C N. Groesbeck, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2004

Effects Of Increasing Pantothenic Acid On Growth Performance And Carcass Characteristics Of Finish Pigs Reared In A Commercial Environment, C N. Groesbeck, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1080 pigs (PIC), initially 89.0 ± 5.1 lb were used to determine the effects of increasing pantothenic acid on growth performance and carcass characteristics of growfinish pigs. Pigs were blocked by weight and gender, and were randomly allotted to treatment. Pigs were fed, in meal form, the experimental corn-soybean meal, added-fat diets in four phases. Dietary treatments consisted of a control diet (no added pantothenic acid), or the control diet with 22.5, 45.0, or 90.0 ppm added pantothenic acid from d-calcium pantothenate. Dietary treatments were fed from d 0 to 98 (89 ...


Effects Of Increasing Extruded Soy-Protein Concentrate On Growth Performance Of Nursery Pigs, N A. Lenehan, N Z. Frantz, C N. Groesbeck, K R. Lawrence, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2004

Effects Of Increasing Extruded Soy-Protein Concentrate On Growth Performance Of Nursery Pigs, N A. Lenehan, N Z. Frantz, C N. Groesbeck, K R. Lawrence, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two hundred and forty barrows and gilts (initially 13.0 lb and 18 ± 2 d of age at weaning) were blocked by initial weight and were allotted randomly to one of five dietary treatments. There were eight replications (pens) per treatment, with six pigs per pen. Pigs were fed experimental diets from d 0 to 14 after weaning that included a control diet containing 40% soybean meal and diets containing 7.1, 14.3, 21.4, or 28.6% extruded soy-protein concentrate. From d 14 to 28, all pigs were fed a similar diet to determine if any carry-over ...


Effects Of Weaning Time (Pm Or Am) On Nursery-Pig Growth Performance, C R. Neill, Michael D. Tokach, Joel M. Derouchey, J Ernest Minton, C N. Groesbeck, K R. Lawrence, C W. Hastad, R O. Gottlob, B M. Hildabrand, T E. Burkey, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2004

Effects Of Weaning Time (Pm Or Am) On Nursery-Pig Growth Performance, C R. Neill, Michael D. Tokach, Joel M. Derouchey, J Ernest Minton, C N. Groesbeck, K R. Lawrence, C W. Hastad, R O. Gottlob, B M. Hildabrand, T E. Burkey, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to evaluate the effects of weaning time (PM or AM) on nursery-pig growth performance. The objective was to see how weanling pigs would adjust to the nursery environment if sows were removed from the farrowing crates 12 h before moving pigs into the nursery. Each sow and litter was randomly allotted to a wean time (PM or AM). Half of the litters had their sow removed on Thursday afternoon (PM), leaving the pigs in the farrowing crate. The other litters remained on the sow until weaning on Friday morning (AM). All pigs, both PM and AM ...


The Effect Of Replacing Specialty Protein Sources With Synthetic Amino Acids In Phase 2 Nursery-Pig Diets, N Z. Frantz, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Steven S. Dritz Jan 2004

The Effect Of Replacing Specialty Protein Sources With Synthetic Amino Acids In Phase 2 Nursery-Pig Diets, N Z. Frantz, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A 28-d growth study with a total of 1,500 pigs (7 d after weaning and 14.5 lb initial BW) was conducted to compare differences in pig performance when fed either fish meal, poultry meal, or synthetic amino acids in a phase 2 nursery-pig diet. In addition, pigs were fed either a negative-control diet (predominately soybean meal without specialty protein sources) or a positive-control diet containing both blood meal and fish meal. Spray-dried whey was added to all diets at 10% and fat was added at 3%. All diets were formulated to meet minimum amino acid ratios. From d ...


Determination Of The Apparent And True Ileal Amino Acid Digestibility And Digestible And Metabolizable Energy Of Specialty Protein Sources Intended For Nursery Pig Diets, R O. Gottlob, C W. Hastad, K R. Lawrence, D A. Knabe, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2004

Determination Of The Apparent And True Ileal Amino Acid Digestibility And Digestible And Metabolizable Energy Of Specialty Protein Sources Intended For Nursery Pig Diets, R O. Gottlob, C W. Hastad, K R. Lawrence, D A. Knabe, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the apparent and true-ileal amino acid digestibility, and to determine the digestible energy and metabolizable energy values of rice protein concentrate, salmon protein hydrolysate, whey protein concentrate, and spray-dried animal plasma. The experimental ingredients were analyzed for essential and non-essential amino acids and crude protein so diets could be formulated. In Exp.1, pigs were fed each diet, and ileal digesta was collected and analyzed. Apparent and true digestibilities were then calculated. In Exp. 2, pigs were fed each diet and feces were collected, weighed, and sampled. Lab analyses were conducted for the determination ...