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Kansas Agricultural Experiment Station Research Reports

Other Animal Sciences

2005

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Articles 1 - 30 of 63

Full-Text Articles in Life Sciences

Effects Of Pre-Rigor Injection Of Sodium Citrate Or Acetate, Or Post-Rigor Injection Of Phosphate Plus Salt, On Post-Mortem Glycolysis, Ph Decline, And Pork Quality Attributes (2005), J W. Stephens, Michael E. Dikeman, John A. Unruh, M D. Haub, Michael D. Tokach Jan 2005

Effects Of Pre-Rigor Injection Of Sodium Citrate Or Acetate, Or Post-Rigor Injection Of Phosphate Plus Salt, On Post-Mortem Glycolysis, Ph Decline, And Pork Quality Attributes (2005), J W. Stephens, Michael E. Dikeman, John A. Unruh, M D. Haub, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Forty pork carcass sides were assigned to one of four treatments: pre-rigor citrate (CIT) or acetate (ACE) injection, post-rigor phosphate plus salt (PHOS) injection, and noninjected control (CON). Loins in 20 sides were injected 50 min post-mortem with 4% solutions of CIT or ACE to approximately 110% of projected loin weights, and 10 PHOS-treated loins were injected at 24 h postmortem to 106.6% with a 4.4% PHOS plus 2.2% salt solution. Although CIT increased pH (P0.05) glycolytic metabolite concentrations. The pH increase in CIT-injected muscle was most likely due to its buffering ability rather than glycolytic inhibition. Citrate improved tenderness …

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Porcine Reproductive And Respiratory Syndrome: Characteristic Features Of The Infected Fetus (2005), Raymond R. Rowland R, Jerome C. Nietfeld, Steven S. Dritz Jan 2005

Porcine Reproductive And Respiratory Syndrome: Characteristic Features Of The Infected Fetus (2005), Raymond R. Rowland R, Jerome C. Nietfeld, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Pregnant gilts were infected at 90 days of gestation with porcine reproductive and respiratory virus (PRRSV) isolate SD-23983. Fetuses recovered between 109 and 112 days of gestation were analyzed for the presence of PRRSV. The results showed that not all fetuses were infected, and that infected fetuses tended to be clustered within the uterine horns, suggesting that virus is spread from fetus to fetus. Even though affected litters exhibited different degrees of gross pathology, the presence of an anatomical abnormality was not an identifier of an infected fetus. Analysis of virus replication in individual tissues identified the thymus as the …

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Effect Of Initial Sorting And Amount Of Added Fat On Performance Of Growing-Finishing Pigs Reared In A Commercial Facility (2005), C W. Hastad, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2005

Effect Of Initial Sorting And Amount Of Added Fat On Performance Of Growing-Finishing Pigs Reared In A Commercial Facility (2005), C W. Hastad, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to determine whether the amount of dietary energy fed to pigs of different weight categories influenced growth performance, market weight, and economic return in a commercial grow-finish facility. In Experiment 1, a total of 1,032 pigs with initial weight of 67.7 lb were individually weighed, fitted with electronic ear tags, and sorted into ten, 5-lb weight categories. Pigs were then allotted to pens lighter and heavier then the barn mean or to pens remixed to create a normal distribution around the mean. To complete the 2 × 3 factorial, pigs were fed corn-soybean meal diets, with …

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A Review Of Oxytocin Use For Sows And Gilts (2005), S K. Linneen, J M. Benz, Joel M. Derouchey, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz Jan 2005

A Review Of Oxytocin Use For Sows And Gilts (2005), S K. Linneen, J M. Benz, Joel M. Derouchey, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Oxytocin is frequently used to decrease farrowing time and birth interval as an aid to prevent stillbirths, but recent research has shown that oxytocin use can increase the number of pigs stillborn when used too early in the birth process. The research indicated that the reason for increased stillbirths was an increased number of ruptured umbilical cords, leading to compromise of the pigs' oxygen supply during the birth process. Oxytocin usage should be limited to older-parity sows and the last half of the birth order.; Swine Day, 2005, Kansas State University, Manhattan, KS, 2005

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Influence Of L-Carnitine On Litter Characteristics From Gilts Harvested At Day 40, 55, And 70 Of Gestation (2005), K R. Brown, B J. Johnson, Michael D. Tokach, J Ernest Minton, A E. Brazle, T E. Burkey, C N. Groesbeck, C R. Neill, J D. Schneider, J C. Woodworth, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2005

Influence Of L-Carnitine On Litter Characteristics From Gilts Harvested At Day 40, 55, And 70 Of Gestation (2005), K R. Brown, B J. Johnson, Michael D. Tokach, J Ernest Minton, A E. Brazle, T E. Burkey, C N. Groesbeck, C R. Neill, J D. Schneider, J C. Woodworth, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 59 gilts were used to determine the effects of supplemental L-carnitine on reproductive performance. Experimental treatments were arranged in a 2 × 3 factorial with main effects of L-carnitine (0 or 50 ppm) and day of gestation (40, 55, or 70). All gilts received a constant feed allowance of 3.86 lb/day and a top-dress containing either 0 or 88 mg of L-carnitine, starting on the first day of breeding and continuing until the day of harvest. Total litter size, total litter weight, and crown-to-rump length of fetuses were not different (P>0.10) between treatments at any gestation …

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A Comparison Of Bygholm Feed Sieve To Standard Particle-Size Analysis Techniques (2005), C K. Benz, C N. Groesbeck, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2005

A Comparison Of Bygholm Feed Sieve To Standard Particle-Size Analysis Techniques (2005), C K. Benz, C N. Groesbeck, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Three experiments were conducted to evaluate the Bygholm Feed Sieve particle size tester. The Bygholm Feed Sieve is an 11 inch × 2.25 inch × 4.25 inch plastic box divided into four compartments by three different screen sizes (3,000-, 2,000-, and 1,000-micron mesh). In Experiment 1, particle size was determined for 20 ground corn samples with a Ro-Tap 13-sieve stack (53- to 3,350-micron Tyler mesh screens).The particle sizes ranged from 543 to 1,741 microns. Samples were analyzed for particle size with the standard Bygholm Feed Sieve, operated according to the manufacturer's directions. In Experiment 2, two rubber balls were placed …

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The Effects Of Dietary Glutamine, Glycine, And Sodium Chloride Concentration On Nursery Pig Growth Performance (2005), C N. Groesbeck, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2005

The Effects Of Dietary Glutamine, Glycine, And Sodium Chloride Concentration On Nursery Pig Growth Performance (2005), C N. Groesbeck, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

We conducted a trial to evaluate the effects of feeding added salt (0.38% in addition to the 0.35% already added to the diet) and a 0.70% addition of a blend of 50% glutamine and 50% glycine to weanling pigs as a substitute for spray-dried animal plasma. A total of 216 pigs (initial BW 12.4 ± 1.9 lb and 21 ± 2 d of age) were used, with six pigs per pen and six pens per treatment. Pigs were randomly allotted to pens, blocked by weight, and assigned to one of the six dietary treatments. The six treatments were a negative …

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Is The Total Sulfur Amino Acid:Lysine Ratio For Lactating Sows Greater Than 50%? (2005), J D. Schneider, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2005

Is The Total Sulfur Amino Acid:Lysine Ratio For Lactating Sows Greater Than 50%? (2005), J D. Schneider, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 75 lactating sows were used in a study to determine whether the ratio of total sulfur amino acid (TSAA) to lysine calculated from the NRC (1998) is adequate for lactating sows. Low and high sulfur amino acid diets were formulated to contain a (true ileal digestible (TID) TSAA content of 0.44 or 0.57%, respectively. Both experimental diets were based on corn and soybean meal and were formulated to contain 0.88% TID lysine (0.97% total lysine). Thus, the TID TSAA:lysine ratios were 50 and 65% for the two experimental diets, respectively. Both experimental diets contained 0.37% L-lysine HCl, …

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Lactose And Specialty Protein Sources Influence Flow Ability Of Nursery Pig Diets (2005), E E. Carney, C N. Groesbeck, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz Jan 2005

Lactose And Specialty Protein Sources Influence Flow Ability Of Nursery Pig Diets (2005), E E. Carney, C N. Groesbeck, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the effects of lactose products and specialty protein sources on feed flow ability as measured by angle of repose. Angle of repose is the maximum angle in which a pile of ingredient retains its slope. A large angle of repose represents a steeper slope and poorer flow ability. A 70:30 corn-soybean meal blend served as the base to which all specialty ingredients were added. In Experiment 1, six lactose sources were evaluated. Three sources were fine, powdered whey permeates, and the other sources were coarse-ground whey permeate, edible-grade spray-dried whey, and a crystalline lactose …

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Effects Of Intermittent Usage Of Water-Based Neomycin Sulfate On The Growth Performance Of Weanling Pigs (2005), R O. Gottlob, C R. Neill, C N. Groesbeck, K R. Brown, N Z. Frantz, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2005

Effects Of Intermittent Usage Of Water-Based Neomycin Sulfate On The Growth Performance Of Weanling Pigs (2005), R O. Gottlob, C R. Neill, C N. Groesbeck, K R. Brown, N Z. Frantz, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 360 weanling pigs (initially 11.4 lb and 18 ± 3 d of age, PIC) were used to determine the effects of intermittent use of water-based medication on nursery pig growth performance. Pigs were given one of eight experimental treatments: negative control (no antibiotics in the feed or water); positive control with Neo-Terramycin® in the feed (140 g/ton Neomycin sulfate, 140 g/ton Oxytetracycline HCl); continuous use of either 38.0 or 75.5 mg Neomycin sulfate per L of water; use of either 38.0 or 75.5 mg of Neomycin sulfate per L of water, during weeks 1 and 3 after …

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Effects Of Different Dosages Of Water-Based Neomycin Sulfate On Growth Performance Of Weanling Pigs (2005), R O. Gottlob, C W. Hastad, C N. Groesbeck, C R. Neill, N Z. Frantz, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2005

Effects Of Different Dosages Of Water-Based Neomycin Sulfate On Growth Performance Of Weanling Pigs (2005), R O. Gottlob, C W. Hastad, C N. Groesbeck, C R. Neill, N Z. Frantz, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 360 weanling pigs (initially 14.1 lb and 21 ± 3 d of age, PIC) were used to determine the effects of different rates of waterbased medication on nursery pig growth performance. Pigs were given one of eight experimental treatments: negative control (no antibiotics in the feed or water); positive control with Neo-Terramycin® in the feed (140 g/ton Neomycin sulfate, 140 g/ton Oxytetracycline HCl); 38.0, 75.5, or 113.5 mg of Neomycin sulfate per L of water; 100 or 200 g/ton of Neomycin sulfate in the feed; and Neo-Terramycin® in the feed and 75.5 mg of Neomycin per L …

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Effects Of Corn Source And Increasing Lysine Content On Growth Performance In Swine (2005), C W. Hastad, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2005

Effects Of Corn Source And Increasing Lysine Content On Growth Performance In Swine (2005), C W. Hastad, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Three studies were conducted to evaluate the effect on growth performance when NutriDense (ND) corn is used in conjunction with increasing amounts of L-lysine, threonine, and methionine. NutriDense corn is a nutritionally enhanced product containing a stacked set of traits to provide greater nutrient density than is provided by conventional yellow dent corn (YD). In Experiment 1, a total of 320 pigs (initial 40.2 lb) were blocked by weight to one of eight dietary treatments. Pigs were fed corn-soybean meal diets with either YD or ND corn and with 3, 5, 7, or 9 lb of crystalline L-lysine per ton …

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Influence Of Feeding Weanmor+® To Sows On Stillborn Rate And Preweaning Mortality (2005), Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2005

Influence Of Feeding Weanmor+® To Sows On Stillborn Rate And Preweaning Mortality (2005), Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 239 sows (PIC C-22) were used in this experiment. Sows were randomly allotted to one of the two experimental treatments approximately 5 days before their expected farrowing date. Control sows did not receive any topdress; sows on the WEANMOR+® treatment received a single daily topdress of 25 g of WEANMOR+®. Topdressing the sow feed with WEANMOR+® reduced (P<0.06) urine pH, but number of total pigs born, mummied, fostered, died, or weaned were not influenced by treatment (P>0.67). There was a parity group-by-stillborn interaction (P<0.10) in which feeding WEANMOR+® reduced the number of stillborn pigs in the parity 2 to 5 sows, with a numeric increase in stillborns when WEANMOR+® was fed to sows that were parity 6 and over.; Swine Day, 2005, Kansas State University, Manhattan, KS, 2005

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Growth Performance Of Nursery Pigs Fed Biosaf Yeast, Alone Or In Combination With An In-Feed Antimicrobial (2005), B M. Hildabrand, T E. Burkey, K A. Skjolaas-Wilson, B J. Johnson, J Ernest Minton, Steven S. Dritz Jan 2005

Growth Performance Of Nursery Pigs Fed Biosaf Yeast, Alone Or In Combination With An In-Feed Antimicrobial (2005), B M. Hildabrand, T E. Burkey, K A. Skjolaas-Wilson, B J. Johnson, J Ernest Minton, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 280 pigs were used in a 28-d growth study to evaluate the effects of feeding the antimicrobial carbadox, BIOSAF (0.4%), and the combination of carbadox and BIOSAF yeast (0.15%) in nursery pig diets. Over the length of the entire trial, pigs fed the diet containing carbadox alone had greater ADG than did pigs fed the control diet or the diet containing 0.4% BIOSAF. Overall, pigs fed the diet containing both carbadox and 0.15% BIOSAF had greater ADG than did pigs fed the control diet or the diet containing 0.4% BIOSAF (P<0.04), although their growth performance did not differ from that of pigs fed carbadox alone. Antibody titers in response to routine vaccination against Mycoplasma hyopneumoniae were not affected by dietary treatment. There was no evidence that BIOSAF improved growth performance of nursery pigs, either alone or in combination with the carbadox. It is possible that the interactive effects of BIOSAF that have been reported for other in-feed antibiotics are not present when BIOSAF is combined with carbadox, or perhaps interactive effects are only observed when carbadox itself exerts a more potent stimulation of ADG in nursery pigs.; Swine Day, 2005, Kansas State University, Manhattan, KS, 2005

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Effects Of Water-Based Citric Acid On Growth Performance And Water Disappearance Of Weanling Pigs (2005), R O. Gottlob, C N. Groesbeck, J M. Deruochey, C R. Neill, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2005

Effects Of Water-Based Citric Acid On Growth Performance And Water Disappearance Of Weanling Pigs (2005), R O. Gottlob, C N. Groesbeck, J M. Deruochey, C R. Neill, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 399 weanling pigs (initially 12.2 lb and 14 ± 3 d of age, PIC) were used to determine the effects of water-based citric acid on nursery pig growth performance and water disappearance. Pigs were given a common diet and one of two experimental water treatments: 1) negative control, water containing no additives; and 2) water containing 0.55 g per L citric acid. Overall (d 0 to 10 after weaning), there were no differences in growth performance between pigs provided water or water with added citric acid. In addition, water disappearance was similar between treatments for the overall …

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Determining The Optimal Lysine:Calorie Ratio For Growth Performance Of Pic Nursery Pigs (2005), J D. Schneider, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2005

Determining The Optimal Lysine:Calorie Ratio For Growth Performance Of Pic Nursery Pigs (2005), 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. Experiment 1 was organized as a combination of two simultaneous experiments,with one set of diets consisting of five treatments with increasing true ileal digestible (TID) lysine (1.11, 1.19, 1.26, 1.34, and 1.42%) and the second set of diets consisting of five treatments with increasing energy density (1,341, 1,408, 1,475, 1,542, and 1,609 kcal/lb). The highest level of both lysine and energy density (1.42% and 1,609 kcal/lb, respectively) were combined as one diet and used in both the lysine and energy-density titrations, …

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Determining The Threonine Requirement Of The Lactating Sow (2005), J D. Schneider, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2005

Determining The Threonine Requirement Of The Lactating Sow (2005), J D. Schneider, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 182 lactating sows were used in a study to determine the threonine requirement, and the relative difference in resulting performance of lactation diets with high concentrations of crystalline amino acids, compared with a conventional corn-soybean meal diet. All experimental diets were based on corn-soybean meal and formulated to contain 0.88% true ileal digestible (TID) lysine (1.00 and 0.97% total lysine for the control treatment and crystalline amino acid treatments, respectively). The control treatment was a conventional corn-soybean meal diet with no added crystalline amino acids. The other five experimental diets contained 0.37% L-lysine HCl, with other amino …

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Feeding Melengesterol Acetate (Mga) In Advance Of Estrus Synchronization Of Virgin Beef Heifers, B.T. Gray, T.T. Marston Jan 2005

Feeding Melengesterol Acetate (Mga) In Advance Of Estrus Synchronization Of Virgin Beef Heifers, B.T. Gray, T.T. Marston

Kansas Agricultural Experiment Station Research Reports

The objective of this experiment was to determine if a 7-day feeding of melengesterol acetate (MGA) about 2 months before the breeding season would have an effect on puberty onset, response to estrous synchronization, and fertility. "Progesterone priming" with MGA increased the number of heifers that began cycling before estrous synchronization. This did not increase the percentage of heifers that were observed in standing heat after estrous synchronization, however, regardless of whether standard MGA/PGF or Select Synch protocol was used. The conception rates and overall pregnancy rates were similar between treatments. Many factors affect the reproductive performance of replacement heifers; …

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Effects Of Early Weaning On Carcass And Ribeye Steak Characteristics Of Bulls And Steers, E.K. Schlickau, Michael E. Dikeman, T.T. Marston, J. Brethour, John A. Unruh Jan 2005

Effects Of Early Weaning On Carcass And Ribeye Steak Characteristics Of Bulls And Steers, E.K. Schlickau, Michael E. Dikeman, T.T. Marston, J. Brethour, John A. Unruh

Kansas Agricultural Experiment Station Research Reports

Crossbred Hereford x Angus calves (n = 103) were used to determine the effect of early weaning on carcass and ribeye (longissimus muscle) characteristics of bulls and steers. Treatments were: 1) early-weaned (117 days of age) bulls, 2) early-weaned steers, 3) normal-weaned (220 days of age) bulls, and 4) normal-weaned steers. Cattle were harvested at 360 and 389 days of age. At 36 hours postmortem, carcass quality and cutability were measured. Ribeye steaks were aged 14 days and scored for color, Warner-Bratzler shear force, and sensory panel evaluations. Carcasses from early-weaned cattle had greater dressing percentages, heavier weights, greater fat …

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A Brief History Of The Department Of Animal Sciences And Industry At Kansas State University (2006), Miles Mckee Jan 2005

A Brief History Of The Department Of Animal Sciences And Industry At Kansas State University (2006), Miles Mckee

Kansas Agricultural Experiment Station Research Reports

The Department of Animal Sciences and Industry at Kansas State University celebrates its 100th anniversary this year. This review outlines some of the key historical moments in its development.

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A Comparison Of Forage Yield And Quality In A Simulated Graze-Out For Twelve Varieties Of Hard Red And White Winter Wheat (2005), R.L. Hale, C.T. Thompson, C.T. Mackown, Troy J. Dumler Jan 2005

A Comparison Of Forage Yield And Quality In A Simulated Graze-Out For Twelve Varieties Of Hard Red And White Winter Wheat (2005), R.L. Hale, C.T. Thompson, C.T. Mackown, Troy J. Dumler

Kansas Agricultural Experiment Station Research Reports

Six hard white winter wheat varieties (Burchett, Lakin, NuFrontier, NuHills, Nu- Horizon, and Trego) and six hard red winter wheat varieties (2137, Jagalene, Jagger, OK101, Stanton, and Thunderbolt) were planted in two southwestern Kansas counties, Clark and Stanton, to compare simulated graze-out forage yield and quality. Four replicated plots were planted in September 2003 for each variety at each location. Forage samples were collect from each plot during December 2003, March 2004, and April or May 2004. Dry matter content, dry matter yield, crude protein, acid detergent fiber (ADF), neutral detergent fiber (NDF), total digestible nutrients (TDN), net energy (NEm, …

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Yield Of Irrigated Cool-Season Grasses In Southwestern Kansas (2005), R.L. Hale, C.T. Thompson, M. Hampton, G.L. Gold, Troy J. Dumler Jan 2005

Yield Of Irrigated Cool-Season Grasses In Southwestern Kansas (2005), R.L. Hale, C.T. Thompson, M. Hampton, G.L. Gold, Troy J. Dumler

Kansas Agricultural Experiment Station Research Reports

Nine varieties and a commercial mix of perennial cool-season grasses were planted in four replicated plots in two counties in southwestern Kansas to evaluate yield and adaptability when produced under irrigation. The varieties were smooth bromegrass, "˜Slate' intermediate and "˜Hycrest' crested wheatgrass, "˜Kentucky 31' and "˜Max-Q®' tall fescue, "˜Profile' orchardgrass, "˜Hykor' festulolium, and "˜Dixon®' and "˜Lakota®' matua grass. The mix was Sharp Brothers' "˜Pasture Mix #6®', a blend of smooth bromegrass, "˜Regar' meadow bromegrass, Slate, Profile, and "˜Garrison' creeping foxtail. Grasses were planted in September 2002. Forage samples were collected in the spring and fall of 2003 and 2004 to …

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Nutrient Values For Harvested Forages From Northeastern Kansas (2005), T.T. Marston, Duane L. Davis, Billy D. Wood, Rod Schaub Jan 2005

Nutrient Values For Harvested Forages From Northeastern Kansas (2005), T.T. Marston, Duane L. Davis, Billy D. Wood, Rod Schaub

Kansas Agricultural Experiment Station Research Reports

Forage testing is an important management tool available to cattle producers. Hay samples (n=42) from Shawnee, Douglas, and Osage counties of various forages (mostly alfalfa, brome hay, and prairie hay) recently were analyzed for nutrient composition. Results indicate that variability in crude protein and fiber (ADF and NDF) content exists. Alfalfa samples possessed crude protein content greater than reported values, whereas prairie samples were close to National Research Council reported values. In contrast, brome hay samples often had less crude protein than their NRC book values. Single samples of other forage types revealed that nutrient profiles of alternative forages could …

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Effect Of Adding Aureomycin® For Anaplasmosis Control Or Rumensin® To Mineral Supplements On Summer Beef Cowherd Performance (2005), Donald A. Llewellyn, T.T. Marston, Ryan M. Breiner Jan 2005

Effect Of Adding Aureomycin® For Anaplasmosis Control Or Rumensin® To Mineral Supplements On Summer Beef Cowherd Performance (2005), Donald A. Llewellyn, T.T. Marston, Ryan M. Breiner

Kansas Agricultural Experiment Station Research Reports

Two hundred forty-six commercial Angusbased cows were used to determine the effect of adding Aureomycin® for anaplasmosis control or Rumensin® to mineral supplements on summer beef cowherd performance. Cow/calf pairs were randomly allotted to summer native-pasture groups by treatment, and were fed an industry-standard mineral/trace mineral supplement for the duration of the trial. The study had three treatments: (1) control mineral supplement with no medication added, (2) the same base supplement with the addition of Aureomycin® (0.5 mg/lb cow body weight daily), and (3) the base supplement with the addition of Rumensin® (200 mg/cow daily). Feed additives were blended into …

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Effects Of Energy Source On Methionine Utilization By Growing Steers (2005), G.F. Schroeder, M.S. Awawdeh, D.P. Gnad, Evan C. Titgemeyer Jan 2005

Effects Of Energy Source On Methionine Utilization By Growing Steers (2005), G.F. Schroeder, M.S. Awawdeh, D.P. Gnad, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

We evaluated the effect of energy source on amino acid utilization in growing steers. Ruminally cannulated Holstein steers (372 lb) were limit-fed (4.2 lb/day dry matter) a diet based on soybean hulls. A 2 x 5 factorial arrangement of treatments was used: 0 or 3 grams/day of methionine and five sources of energy. The energy sources evaluated were infused in amounts of 1.3 Mcal ME/day and included: control (none), glucose (0.79 lb/day), fat (0.33 lb/day), acetate (0.85 lb/day), and propionate (0.59 lb/day). Acetate and propionate were infused continuously into the rumen, whereas glucose and fat were infused into the abomasum. …

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Effects Of Melengesterol Acetate On Inflammatory Response During Mannheimia Haemolytica Challenge (2005), M.E. Corrigan, James S. Drouillard, M.F. Spire, Daniel W. Moser, James J. Higgins, E.R. Loe, J.T. Fox, J. Ernest Minton, Brandon E. Depenbusch Jan 2005

Effects Of Melengesterol Acetate On Inflammatory Response During Mannheimia Haemolytica Challenge (2005), M.E. Corrigan, James S. Drouillard, M.F. Spire, Daniel W. Moser, James J. Higgins, E.R. Loe, J.T. Fox, J. Ernest Minton, Brandon E. Depenbusch

Kansas Agricultural Experiment Station Research Reports

Previous trials conducted at Kansas State University demonstrated that melengesterol acetate (MGA) increased growth rates and tended to reduce chronic sickness in heifers naturally challenged with undifferentiated bovine respiratory disease. Our study was conducted to gain further insight into the mode of action of MGA. Crossbred heifers (n=47; 511 lb) were used to evaluate effects of MGA on lung pathology and markers of inflammation in cattle after an intrabronchial Mannheimia haemolytica challenge. On day 0, cattle were assigned to diets (54% concentrate) that provided 0 or 0.5 mg MGA per heifer daily. On day 14 each heifer was intrabronchially inoculated …

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Feedlot Performance, Health, And Carcass Characteristics Of Beef Heifers Treated With Cydectin® Or Dectomax® At Processing (2005), R.L. Hale, D. Gray, R. Armendariz Jan 2005

Feedlot Performance, Health, And Carcass Characteristics Of Beef Heifers Treated With Cydectin® Or Dectomax® At Processing (2005), R.L. Hale, D. Gray, R. Armendariz

Kansas Agricultural Experiment Station Research Reports

Two parasite-control products were compared in an experiment evaluating growth performance, health, and carcass characteristics. Crossbred heifers (n=1747; 837 lb average weight) were randomly assigned to receive either Cydectin® or Dectomax®. Both products were administered at processing at 1 ml per 22 lb of body weight. Cattle were randomly allotted to 12 paired pens by treatment based on source, truckload, and arrival date. Fecal egg counts taken at processing (9.74 eggs per gram) and at reimplanting (0 eggs per gram) indicated that both products were effective in eliminating adult female gastrointestinal parasites. No differences were detected in average daily gain, …

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Effects Of Oral Administration Or Feeding Of Sodium Citrate Or Acetate To Pigs On Post-Mortem Glycolysis, Ph Decline, And Pork Quality Attributes (2005), J W. Stephens, Michael E. Dikeman, John A. Unruh, M D. Haub, Michael D. Tokach Jan 2005

Effects Of Oral Administration Or Feeding Of Sodium Citrate Or Acetate To Pigs On Post-Mortem Glycolysis, Ph Decline, And Pork Quality Attributes (2005), J W. Stephens, Michael E. Dikeman, John A. Unruh, M D. Haub, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Previous studies have shown that citrate has the potential to inhibit phosphofructokinase (PFK), a key enzyme in post-mortem glycolysis. The objective of our study was to determine the effects of oral administration and feeding of citrate or acetate to pigs on post-mortem glycolysis, pH, and pork quality attributes. In Experiment 1, citrate, acetate, or water was orally administered to 30 pigs 45 min before stunning (electric plus captive bolt). In Experiment 2, citrate or acetate was fed to 30 gilts in 454 g of feed 60 min before stunning. Ante-mortem treatment had no effect (P>0.05) on muscle pH or …

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The Effects Of Meal Transition Diets On Nursery Pig Growth Performance In A Commercial Environment (2005), C N. Groesbeck, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2005

The Effects Of Meal Transition Diets On Nursery Pig Growth Performance In A Commercial Environment (2005), C N. Groesbeck, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 2,016 pigs (initially 12.6 lb and 18 ± 2 d of age) were used in a 28-d growth assay to evaluate the current feed-budget allocations for SEW, Transition, and Phase 2 diets fed in meal form in a commercial environment. Pigs were allotted to one of six treatments, with a variety of feed budgets: 1) pelleted diets with 1 lb/pig of SEW diet (6.7% plasma) and 3 lb/pig of Transition diet (2.5% plasma); 2) pelleted diets with 0.5 lb/pig of SEW diet (6.7% plasma) and 1 lb/pig of Transition diet (2.5% plasma); 3) meal diet with 2 …

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Effects Of Intermittent Ractopamine Hcl (Paylean) Use On Pig Growth Performance In Late Finishing (2005), C R. Neill, C N. Groesbeck, K R. Brown, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2005

Effects Of Intermittent Ractopamine Hcl (Paylean) Use On Pig Growth Performance In Late Finishing (2005), C R. Neill, C N. Groesbeck, K R. Brown, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 324 pigs (initially 149 lb) were used in a 56-d feeding trial to examine growth performance of pigs as affected by different ractopamine HCl (Paylean) regimens. There were four experimental treatments: A) the control diet fed for 56 d; B) the Paylean diet (9 g/ton) fed for 21 d, then control for 35 d; C) Paylean fed for 21 d, then control for 14 d, and then Paylean for 21 d; and D) control diet 35 d and then Paylean 21 d. Treatment C (feeding Paylean for 21 d, withdrawing it for 14 d, and re-feeding for …

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