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2002

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Articles 91 - 106 of 106

Full-Text Articles in Other Animal Sciences

Effects Of Paylean (Ractopamine⋅Hcl) On Finishing Pig Growth And Variation (2002), M R. Barker, C N. Groesbeck, S M. Hanni, C W. Hastad, T P. Keegan, K R. Lawrence, M G. Young, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz Jan 2002

Effects Of Paylean (Ractopamine⋅Hcl) On Finishing Pig Growth And Variation (2002), M R. Barker, C N. Groesbeck, S M. Hanni, C W. Hastad, T P. Keegan, K R. Lawrence, M G. Young, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 336 pigs were used in a 21-day trial to determine the effect of Paylean (9.0 g/ton Ractopamine·HCl) on finishing pig growth and variation. Pigs were allotted based on weight so that all pens had the same initial weight and degree of variation within the pen. Pigs fed Paylean had greater ADG and better feed efficiency than control-fed pigs (P0.70). The results suggest that adding Paylean to the diet improves finishing pig growth performance but does not affect weight variation within the pen.; Swine Day, Manhattan, KS, November 14, 2002

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Supplementation Of L-Carnitine And Paylean Improve Growth Performance Of Pigs In A Commercial Finishing Facility (2002), B W. James, K Q. Owen, J C. Woodworth, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2002

Supplementation Of L-Carnitine And Paylean Improve Growth Performance Of Pigs In A Commercial Finishing Facility (2002), B W. James, K Q. Owen, J C. Woodworth, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Our previous experiments evaluating the interactive effects of dietary L-carnitine and Paylean have primarily focused on improved meat quality benefits of feeding carnitine in combination with Paylean. Although there were numeric trends for improved growth performance in the previous experiments conducted at university facilities, the responses were not statistically significant. A recent study conducted in a commercial finishing facility demonstrated improved growth performance in pigs fed carnitine for the 4-week period prior to slaughter. The cause for the growth response observed in the commercial facility compared to the two previous studies conducted at a university research facility may have been …

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Effect Of L-Carnitine And Paylean (Ractopamine⋅Hcl) Supplementation On Growth Performance, Carcass Characteristics, And Postmortem Ph Decline (2002), B W. James, K Q. Owen, T E. Lawrence, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, John A. Unruh, Steven S. Dritz Jan 2002

Effect Of L-Carnitine And Paylean (Ractopamine⋅Hcl) Supplementation On Growth Performance, Carcass Characteristics, And Postmortem Ph Decline (2002), B W. James, K Q. Owen, T E. Lawrence, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, John A. Unruh, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Growth performance, carcass characteristics, and meat quality were evaluated from 126 pigs fed combinations of Paylean and L-carnitine arranged in a 2 × 3 factorial. Dietary L-carnitine (0, 25, or 50 ppm) and Paylean (0 or 9 g/ton) were fed the last 4 weeks prior to slaughter. Feeding Paylean to pigs improved (P<0.01) ADG and F/G. Supplemental Lcarnitine did not affect (P>0.46) ADG, but there was a trend for improved (quadratic, P<0.07) F/G in pigs fed increasing carnitine. A carnitine × Paylean interaction (P<0.05) was observed for dressing percentage and visual firmness, percentage transmission (soluble protein), temperature measured 1.5 h postmortem, and percentage drip loss. Dressing percentage was higher for pigs fed 25 ppm carnitine with no Paylean and lower for pigs fed 25 ppm carnitine with Paylean. Visual firmness scores decreased in pigs fed increasing carnitine and no Paylean but increased when adding carnitine to diets containing Paylean. Soluble protein increased (more soluble protein indicates higher quality muscle) and drip loss decreased when pigs were fed increasing L-carnitine with Paylean. A trend (P<0.07) was observed for pigs fed increasing carnitine to have lower 10th rib and average backfat. Feeding Paylean to pigs increased (P<0.01) percentage lean, L*, and hue angle, and decreased (P<0.02) visual color scores and a*/b* values. Pigs fed Paylean had higher temperature and lower pH measured 3 h postmortem (P<0.01) and tended (P<0.06) to have lower pH measured 6 h postmortem. These results suggest that Paylean improves growth performance when fed to finishing pigs. Carnitine decreased drip loss and improved meat quality when fed to pigs in combination with Paylean.; Swine Day, Manhattan, KS, November 14, 2002

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Evaluation Of Wheat Gluten And Spray-Dried Animal Plasma On Growth Performance Of Nursery Pigs (2002), K R. Lawrence, C W. Hastad, S M. Hanni, M R. Barker, B W. James, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2002

Evaluation Of Wheat Gluten And Spray-Dried Animal Plasma On Growth Performance Of Nursery Pigs (2002), K R. Lawrence, C W. Hastad, S M. Hanni, M R. Barker, B W. James, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 440 weanling pigs (initially 14.3 lb) were used in two studies to evaluate the effects of increasing wheat gluten (WG) and spray-dried animal plasma (SDAP) on growth performance of early weaned pigs. In Exp. 1, the six dietary treatments included a negative control, containing no wheat gluten or animal plasma, the control diet containing either 3, 6, 9, or 12% lightly modified spray-dried wheat gluten, and a positive control diet containing 5% spray-dried animal plasma. The diets containing 9% WG and 5% SDAP had the same amount of soybean meal to make a direct comparison of the …

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Effect Of Phytase Dosage And Source On Growth Performance Of Nursery Pigs (2002), B W. James, G L. Lynch, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2002

Effect Of Phytase Dosage And Source On Growth Performance Of Nursery Pigs (2002), B W. James, G L. Lynch, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A 28-d growth assay was conducted to determine the effect of phytase dosage and source on growth performance of nursery pigs. The nine experimental treatments were control diets (0.13, 0.18, and 0.23% available phosphorus) and phytase (100, 225, or 350 FTU or FYT/kg) from either Natuphos or Ronozyme P added to the 0.13% available P diet. The results of this experiment indicate that increasing available P or phytase level, through 0.23% available P and 350 FTU or FYT/kg, respectively, improves ADG and feed efficiency. Regression analysis of the ADG response indicated that, when adding less than 350 phytase units/kg, each …

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Interactive Effects Among L-Carnitine, Paylean (Ractopamine⋅Hcl), And Dietary Energy Density On Commercial Finishing Pig Growth Performance And Carcass Characteristics (2002), B W. James, K Q. Owen, J C. Woodworth, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2002

Interactive Effects Among L-Carnitine, Paylean (Ractopamine⋅Hcl), And Dietary Energy Density On Commercial Finishing Pig Growth Performance And Carcass Characteristics (2002), B W. James, K Q. Owen, J C. Woodworth, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Growth performance and carcass characteristics were evaluated on 1,104 pigs fed combinations of L-carnitine, Paylean, and added fat in a 2 × 2 × 2 factorial arrangement. Dietary treatments of L-carnitine (0 or 50 ppm) and fat (0 or 6%) were initiated at approximately 97 lb. Paylean (0 or 9 g/ton) was fed for the last 4 weeks prior to market. Supplementing dietary carnitine did not affect (P>0.25) growth performance of pigs between 97 to 203 lb. The addition of 6% dietary fat improved (P<0.01) ADG and F/G during this period. During the last 4 weeks of the experiment, when Paylean was fed, a carnitine × Paylean interaction was observed (P<0.04) for ADG and F/G. Both carnitine and Paylean improved growth performance; however, the responses were not additive. Pigs fed added fat had improved (P<0.05) feed efficiency during the Paylean supplementation period. A carnitine × Paylean interaction (P<0.03) was observed for fat thickness and percentage lean. Fat thickness decreased and lean percentage increased in pigs fed carnitine or Paylean, but the responses were not additive. Pigs fed added fat had greater (P<0.01) fat thickness and lower percentage lean than pigs not fed added fat. A carnitine × Paylean × fat interaction was observed (P<0.04) for longissimus muscle area. In general, adding carnitine, Paylean or fat to the diet increased longissimus muscle area; however, the responses were not fully additive. Carcass weight was greater (P<0.01) for pigs fed 6% added fat and tended (P<0.07) to be greater for pigs fed carnitine. Adding Paylean to the diet increased (P<0.04) ultimate longissimus pH and reduced drip loss as measured by the filter paper method. Similar to other experiments, adding carnitine to the diet tended to decrease drip loss (P<0.06) as measured by the suspension method. These results suggest that adding Lcarnitine and Paylean to the diet increases ADG and that L-carnitine, Paylean, and fat improve feed efficiency when fed to late finishing pigs reared in a commercial facility. These data also support our previous research that demonstrated improvements in carcass characteristics of pigs fed L-carnitine.; Swine Day, Manhattan, KS, November 14, 2002

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Effect Of B-Vitamin Supplementation On Nursery Pig Growth Performance (2002), B W. James, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz Jan 2002

Effect Of B-Vitamin Supplementation On Nursery Pig Growth Performance (2002), B W. James, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A 35-d growth assay was conducted to determine the effect of added dietary B-vitamins on growth performance of nursery pigs (12.9 lb initial BW). The basal diet (Phase I, 1.5% lysine; Phase II, 1.3% lysine) was formulated to contain no added Bvitamins. The other treatment diets were formed by adding a B-vitamin premix (biotin, folacin, niacin, pantothenic acid, riboflavin, thiamin, B6, and B12) to the basal diet with the vitamins added at 1, 2, or 4 times NRC (1998) recommendations. In phase I (d 0 to 14) and for the overall trial, pigs fed increasing Bvitamins had increased (linear, P0.09) …

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Interactive Effects Between Paylean (Ractopamine⋅Hcl) And Dietary L-Carnitine On Finishing Pig Growth Performance And Carcass Characteristics (2002), B W. James, K Q. Owen, T E. Lawrence, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, John A. Unruh, Steven S. Dritz Jan 2002

Interactive Effects Between Paylean (Ractopamine⋅Hcl) And Dietary L-Carnitine On Finishing Pig Growth Performance And Carcass Characteristics (2002), B W. James, K Q. Owen, T E. Lawrence, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, John A. Unruh, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Growth performance, carcass characteristics, and meat quality were evaluated from 126 pigs fed combinations of Paylean and L-carnitine arranged in a 3 × 3 factorial. Dietary L-carnitine (0, 25, or 50 ppm) was fed from 74 lb until slaughter, and Paylean (0, 4.5, or 9 g/ton) was fed the last 4 weeks prior to slaughter. These results suggest that Paylean, but not L-carnitine, increases ADG and improves F/G. However, L-carnitine enhances meat quality by improving visual color, L* (darker color), b* (less yellow), a*/b*, and Hue angle (more red and less orange) when fed with Paylean. L- carnitine also decreases …

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Effect Of Dose Of Chlorate On Growth Performance Of Nursery Pigs (2002), T E. Burkey, J Ernest Minton, Steven S. Dritz Jan 2002

Effect Of Dose Of Chlorate On Growth Performance Of Nursery Pigs (2002), T E. Burkey, J Ernest Minton, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A 14-day growth study was conducted to evaluate the effects of feeding varied levels of chlorate on weanling pig growth performance. A previous experiment with weanling pigs fed diets containing added chlorate (800 ppm) resulted in numerical decreases in ADG, ADFI and F/G as compared to diets with no added antimicrobial, a commonly used antimicrobial (carbadox), or another feed additive, mannanoliogsaccharide. The negative effects of feeding 800 ppm chlorate were confirmed in this study. Additionally, the current trial demonstrated that pigs fed diets containing 200 ppm sodium chlorate had greater ADG, ADFI, and d 14 average weights than pigs fed …

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Effects Of Weaning Age On Post-Weaning Belly Nosing Behavior And Umbilical Lesions (2002), R G. Main, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz Jan 2002

Effects Of Weaning Age On Post-Weaning Belly Nosing Behavior And Umbilical Lesions (2002), R G. Main, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Pigs (n=2272) were weaned at 12, 15, 18, or 21 days of age to determine the effect of weaning age on post-weaning belly nosing behavior and associated umbilical lesions. A reduction (quadratic, P<0.01) in belly nosing behavior and umbilical lesions were observed as weaning age increased. The largest decrease in belly nosing behavior was observed as wean age increased from 12 to 15 days, with smaller incremental reductions in the 18 and 21 day wean pigs. This study indicates that weaning pigs at less than 15 days of age significantly increases belly nosing behavior and associated umbilical lesions after weaning.; Swine Day, Manhattan, KS, November 14, 2002

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Influence Of Dietary Carnitine And/Or Chromium On Blood Parameters Of Gestating Sows (2002), J C. Woodworth, Michael D. Tokach, S I. Koo, J Ernest Minton, K Q. Owen, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2002

Influence Of Dietary Carnitine And/Or Chromium On Blood Parameters Of Gestating Sows (2002), J C. Woodworth, Michael D. Tokach, S I. Koo, J Ernest Minton, K Q. Owen, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Gestating sows (n=44; parity=2.0; BW=458 lb) were used to determine the effects of dietary Carnitine and/or chromium picolinate on daily blood parameter profiles. Diets were formulated as a 2 × 2 factorial with carnitine (0 or 50 ppm) and chromium (0 or 200 ppb) and were fed from breeding, through gestation, lactation, and 30 d into the next gestation at which time blood was collected. Sows were fed one meal per day during gestation (2.1 kg) and ad libitum during lactation. Sows were fitted with indwelling venous catheters and blood (plasma) was collected at feeding, once every 15 min for …

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The Optimal True Ileal Digestible Threonine Requirement For Nursery Pigs Between 24 To 49 Lb (2002), B W. James, J L. Usry, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2002

The Optimal True Ileal Digestible Threonine Requirement For Nursery Pigs Between 24 To 49 Lb (2002), B W. James, J L. Usry, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A 22-d growth assay was conducted to determine the appropriate true ileal digestible threonine requirement to maximize growth performance of pigs between 24 and 49 lb. The 10 experimental treatments consisted of two basal diets (1.1% and 1.2% true ileal digestible lysine; 16.1% and 17.4% CP) with increasing levels of threonine (50, 55, 60, 65, 70% threonine:lysine). Pigs fed 1.2% true ileal digestible lysine had improved ADG and F/G compared to pigs fed 1.1% lysine, this suggest that the requirement was greater than 1.1% true ileal digestible lysine. There was a threonine × lysine interaction for feed efficiency. Pigs fed …

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Effects Of Weaning Age On Costs And Revenue In Three-Site Production (2002), R G. Main, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2002

Effects Of Weaning Age On Costs And Revenue In Three-Site Production (2002), R G. Main, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two trials were completed to determine the effects of weaning age on growing pig costs and revenue within a three-site production system. Cost and revenue were measured by applying operationally dependant information to trial data. Economic effects were determined assuming either limited or nonlimited finishing capacity. In both trials and finishing capacity scenarios (limited or nonlimited), income over costs and cost per hundredweight improved linearly as weaning age increased. In these studies, increasing weaning age up to 21.5 days resulted in linear increases in weaned pig value within a three-site production system. Assessing a common value to acceptable quality wean …

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Effects Of Weaning Age On Pig Performance In Three-Site Production (2002), R G. Main, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2002

Effects Of Weaning Age On Pig Performance In Three-Site Production (2002), R G. Main, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two trials (n = 5,728 weaned pigs) were conducted to determine the effects of weaning age (12 to 21.5 days) on pig performance in a three-site production system. The second trial also examined the effects of modifying nursery feed budgets according to weaning age. In both studies, wean-to-finish ADG, mortality rate, average pig gain per days postweaning, and pounds sold per pig weaned improved linearly as weaning age increased. The improvements in growth rate and mortality largely occurred in the initial 42- days post-weaning, with some ongoing growth improvement to slaughter. Modifying nursery feed budgets did not affect wean-to-finish growth …

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Effects Of An Acute Enteric Disease Challenge On Igf-1 And Igfbp-3 Gene Expression In Porcine Skeletal Muscle (2002), B J. Johnson, J P. Kayser, J D. Dunn, A T. Waylan, S S. Drtiz, Jerome C. Nietfeld, J Ernest Minton Jan 2002

Effects Of An Acute Enteric Disease Challenge On Igf-1 And Igfbp-3 Gene Expression In Porcine Skeletal Muscle (2002), B J. Johnson, J P. Kayser, J D. Dunn, A T. Waylan, S S. Drtiz, Jerome C. Nietfeld, J Ernest Minton

Kansas Agricultural Experiment Station Research Reports

Eighteen pigs (initial weight 25 lb and approximately 5 wk of age) were used in a 14-d trial to determine the effects of an acute Salmonella enterica serotype typhimurium (ST) disease challenge on both circulating insulinlike growth factor-1 (IGF-1) and insulin-like growth factor binding protein-3 (IGFBP-3) and steady-state IGF-1 and IGFBP-3 mRNA levels in skeletal muscle. Muscle biopsies and blood samples were obtained from all pigs on d 0, 3, 7, and 14 relative to ST-challenge. Results suggest that an acute ST-challenge decreased circulating IGF-1 levels on d 3 and 7 but did not affect circulating IGFBP-3 concentrations. Additionally, ST-challenge …

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Linear Effects Of Increasing Weaning Age In Three-Site Production (2002), R G. Main, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2002

Linear Effects Of Increasing Weaning Age In Three-Site Production (2002), R G. Main, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to measure the biologic and economic effects of weaning age in a three-site production system. Wean-to-finish growth and financial performance improved linearly as weaning age increased up to 21.5 days. Data from these trials were modeled to determine the linear rates of improvement observed as weaning age increased from 15 to 21.5 days. Each day increase in weaning age increased initial weight (taken prior to weaning) 0.565 ± 0.009 lb and weight sold to slaughter 3.71 ± 0.32 lb per pig weaned. In the financial analysis, income over cost increased $0.94 ± 0.07 per wean age …

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