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Other Animal Sciences

Journal

2005

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Articles 1 - 30 of 63

Full-Text Articles in Animal Sciences

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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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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Nursery Pig Performance In Response To Meal And Pelleted Diets Fed With Irradiated Or Non-Irradiated Spray-Dried Animal Plasma (2005), C N. Groesbeck, J Bergstrom, C R. Neill, K R. Brown, N Z. Frantz, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2005

Nursery Pig Performance In Response To Meal And Pelleted Diets Fed With Irradiated Or Non-Irradiated Spray-Dried Animal Plasma (2005), C N. Groesbeck, J Bergstrom, C R. Neill, K R. Brown, N Z. Frantz, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A 25-d trial was conducted to determine the effects of feeding meal and pelleted diets, with or without irradiated spray-dried animal plasma (SDAP; AP 920), on the growth performance in nursery pigs. A total of 192 pigs (initially 13.2 ± 1.9 lb and 21 ± 3 d of age) were used, with 6 pigs per pen and 6 pens per treatment. Pigs were randomly allotted in a 2 × 2 factorial to pens, blocked by weight, and randomly allotted to one of four dietary treatments. The main effects were diet form, meal or pellet, and either irradiated SDAP or nonirradiated …

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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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Effects Of Increasing Oregano Oil On Nursery Pig Performance (2005), C R. Neill, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2005

Effects Of Increasing Oregano Oil On Nursery Pig Performance (2005), C R. Neill, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 210 nursery pigs (PIC L327 × L42), with an initial weight of 11.9 lb and 21 d of age, were used in a 28-d growth study. The objective was to evaluate the effects of increasing oregano oil in diets for nursery pigs. Oregano oil is an extract derived from the Greek herb, Origanum vulgare, and has been speculated to have antimicrobial-like activity. Previous research at Kansas State University showed no improvement in growth performance in nursery pigs fed oregano oil (0.10% in the Phase 1 diet, and 0.05% in Phase 2). The present study evaluated growth performance …

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Effects Of Increasing Dietary Lysine On Growth Performance Of Pigs Fed Ractopamine Hcl (Paylean®) (2005), C R. Neill, C W. Hastad, J L. Usry, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2005

Effects Of Increasing Dietary Lysine On Growth Performance Of Pigs Fed Ractopamine Hcl (Paylean®) (2005), C R. Neill, C W. Hastad, 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 919 gilts (PIC L337 × C22) were used in a 21-d trial conducted in a commercial research facility to determine growth and carcass effects of ractopamine HCl (Paylean®; 6.5 g/ton) and different levels of lysine. The diets were formulated to contain 0.75, 0.85, 0.95, 1.05, 1.15, and 1.25% true ileal digestible (TID) lysine to determine the lysine requirement for pigs fed ractopamine. These TID lysine levels correspond to 0.86, 0.97, 1.08, 1.19, 1.29, and 1.40% total lysine. From d 0 to 14, pigs fed 1.05% TID lysine had the greatest improvement in ADG and F/G. In the …

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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 Added Synthetic Amino Acids, With Decreasing Amounts Of Fat, On Growth Performance Of Growing Pigs (2005), R O. Gottlob, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2005

Effects Of Added Synthetic Amino Acids, With Decreasing Amounts Of Fat, On Growth Performance Of Growing Pigs (2005), R O. Gottlob, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,210 growing gilts (initially 102.4 lb, PIC) were used in a 28-day study in a commercial research facility to determine the effects of added synthetic amino acids, with decreasing amounts of fat, on growth performance of growing pigs. Pigs were fed one of four experimental diets based on cornsoybean meal: 1) control (3% added fat, no synthetic amino acids), 2) 2.38% added fat and high concentrations of synthetic amino acids; 3) 1.90% added fat and high concentrations of synthetic amino acids, and 4) 1.43% added fat and high concentrations of synthetic amino acids. The amounts of added …

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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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Inadequate Diet Mixing Time Reduces Nursery Pig Performance (2005), C N. Groesbeck, C R. Neill, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2005

Inadequate Diet Mixing Time Reduces Nursery Pig Performance (2005), C N. Groesbeck, C R. Neill, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Although the importance of thoroughly mixing diets is often emphasized, little data is available to quantify the impact of inadequate mixing on pig growth performance. Therefore, a 28-d trial was conducted to evaluate the effects of mixing time on growth performance of nursery pigs. A total of 180 weanling pigs (13.9 ± 1.8 lb BW, 21± 3 d of age) were used, with 6 pigs per pen and 6 pens per treatment. Experimental treatments consisted of mixing a diet for 0, 30, 60, 120 or 330 s in a horizontal ribbon mixer. Diets were fed in two phases (d 0 …

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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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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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Evaluation Of Growth Performance And Carcass Characteristics In Response To Oral Dosing And Daily Administration Of A Yucca-Derived Sarsaponin To Finishing Steers (2005), E.R. Loe, M.E. Corrigan, M.A. Greenquist, Brandon E. Depenbusch, James S. Drouillard Jan 2005

Evaluation Of Growth Performance And Carcass Characteristics In Response To Oral Dosing And Daily Administration Of A Yucca-Derived Sarsaponin To Finishing Steers (2005), E.R. Loe, M.E. Corrigan, M.A. Greenquist, Brandon E. Depenbusch, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Three hundred sixty-eight crossbred, yearling steers (737 lb) were used in a finishing trial comparing a yucca-derived sarsaponin (YUCCA) to a control diet. Finishing diets based on dry-rolled corn were fed for an average of 134 days before slaughter. Animals were randomly assigned to treatments and allotted to 54 pens with seven steers each. On day 0, cattle assigned to YUCCA were orally drenched with 50 mL of SarStart® plus (SarTec Inc., Anoka, MN), and control cattle were orally drenched with an equal volume of water. Steers receiving YUCCA were supplemented with 1 gram per steer daily of a dried …

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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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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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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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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 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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Serological Responses To Ibr Viral Vaccine And Mannheimia Haemolytica Bacterin/Leukotoxoid Administered With Needle-Free Injection Technology (2005), John F. Smith, B.J. Johnson, Sanjay Kapil, Larry C. Hollis, Derek A. Mosier Jan 2005

Serological Responses To Ibr Viral Vaccine And Mannheimia Haemolytica Bacterin/Leukotoxoid Administered With Needle-Free Injection Technology (2005), John F. Smith, B.J. Johnson, Sanjay Kapil, Larry C. Hollis, Derek A. Mosier

Kansas Agricultural Experiment Station Research Reports

Yearling steers were randomized to treatment and vaccinated with 5-way modified live viral vaccine and Mannheimia haemolytica bacterin/toxoid by using either needle-free or standard needle injection. Blood samples were collected from all animals at the time of vaccination and 21 days later, and the serum was analyzed for antibody titers to infectious bovine rhinotracheitis (IBR) virus and M. haemolytica leukotoxoid. Serological responses to the IBR viral fraction of the 5-way viral vaccine were significantly greater on day 21 after administration with the needle-free injection system. Serological responses to the M. haemolytica leukotoxoid tended to be greater on day 21 after …

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Economic Values Associated With Expected Progeny Differences (Epd) For Angus Bulls At Auction (2005), Kevin C. Dhuyvetter, R. Jones, T. Turner, T. Marsh Jan 2005

Economic Values Associated With Expected Progeny Differences (Epd) For Angus Bulls At Auction (2005), Kevin C. Dhuyvetter, R. Jones, T. Turner, T. Marsh

Kansas Agricultural Experiment Station Research Reports

The two primary objectives of this study were to re-examine the economic values of production expected progeny differences (EPD) and how they relate to the values assigned to actual weights, and to assess the impact that ultrasound EPD have on Angus bull prices. Buyers consider the EPD birth weight to be more important than actual birth weight when selecting bulls. For the remaining production EPD, however, the actual measures were considered more important than the EPD. All four ultrasound EPD were significantly related to price, with three out of the four exhibiting the expected response. Comparisons among premiums/discounts associated with …

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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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Survey Of Cooking Practices And Methods For Beef Steaks And Roasts (2005), L.J. Franken, E.J. Harvey, C. Pearsall, James L. Marsden, Randall K. Phebus Jan 2005

Survey Of Cooking Practices And Methods For Beef Steaks And Roasts (2005), L.J. Franken, E.J. Harvey, C. Pearsall, James L. Marsden, Randall K. Phebus

Kansas Agricultural Experiment Station Research Reports

To support the development of Good Manufacturing Practices for the use of mechanical tenderization in the meat processing industry, a questionnaire was distributed to home, retail, and institutional preparers of beef steaks and roasts. Five hundred individuals in the United States were surveyed on their cooking practices and methods for preparing steaks and roasts. The survey was circulated to individuals from seven states, and consisted of nine questions that addressed where and how participants cooked steaks and roasts. Survey participants were directed to answer all questions that pertained to them and their methods for cooking of steaks and roasts. Results …

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Validation Of Process Capabilities For Directly Acidified Beef And Venison Containing Beef Snack Sticks For Control Of E. Coli O157:H7 (2005), S.K. Stoltenberg, Kelly J.K. Getty, H. Thippareddi, T.M. Loughin, Randall K. Phebus Jan 2005

Validation Of Process Capabilities For Directly Acidified Beef And Venison Containing Beef Snack Sticks For Control Of E. Coli O157:H7 (2005), S.K. Stoltenberg, Kelly J.K. Getty, H. Thippareddi, T.M. Loughin, Randall K. Phebus

Kansas Agricultural Experiment Station Research Reports

USDA/FSIS guidelines require sausage manufacturers to validate their processes to assure that they can achieve a five-log (99.999%) reduction of E. coli O157:H7. Some small meat processors use encapsulated acids instead of lactic acid starter cultures to produce directly acidified sausages. The objectives of this study were to determine 1) the effects of typical thermal processing temperatures and times on reducing E. coli O157:H7 in directly acidified all-beef and venison-containing beef snack sticks, 2) the effect of fat content (10 and 25%) on lethality, and 3) the effect of acid type (citric versus lactic) on lethality. For both all-beef and …

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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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Effects Of Optaflexx™ On Finishing Steer Performance And Usda Quality And Yield Grades (2005), E.R. Loe, T.J. Klopfenstein, G.E. Erickson, B.E. Dicke, James S. Drouillard Jan 2005

Effects Of Optaflexx™ On Finishing Steer Performance And Usda Quality And Yield Grades (2005), E.R. Loe, T.J. Klopfenstein, G.E. Erickson, B.E. Dicke, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Crossbred yearling steers (2,015 head) were fed at a commercial feedyard near Larned, Kansas, to evaluate the effects of feeding Optaflexx™ at 0 or 200 mg ractopamine-HCl per steer daily for the final 29 days on feed. Steers were fed a common diet, based on steam-flaked corn, throughout their finishing period. Cattle that were fed Optaflexx™ had heavier final bodyweights (1264 vs. 1236 lb). Optaflexx™-fed cattle gained 17.9% faster (carcass adjusted basis) and tended to consume more feed during the last 29 days on feed. Feed efficiency was 14% better during the last 29 days for the Optaflexx™-fed steers. Feeding …

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Response Of Heifers Fed Optaflexx™ To Supplemental Protein (2005), D.K. Walker, E.R. Loe, A.S. Webb, Evan C. Titgemeyer, James S. Drouillard, Brandon E. Depenbusch Jan 2005

Response Of Heifers Fed Optaflexx™ To Supplemental Protein (2005), D.K. Walker, E.R. Loe, A.S. Webb, Evan C. Titgemeyer, James S. Drouillard, Brandon E. Depenbusch

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to determine the relationship between metabolizable protein supply and feeding Optaflexx™ (ractopamine-HCl) on growth and carcass characteristics of feedlot heifers. Seventy-two crossbred heifers (initially weighing 1048 lb) were fed diets based on steam-flaked corn. Treatments were arranged as a 2 x 3 factorial and included: 0 or 2 grams per heifer daily of Optaflexx™ (0 or 200 mg/day ractopamine-HCl), and diets containing one of three different protein sources (urea, solvent soybean meal, and expeller soybean meal). Optaflexx™ was fed for the final 28 days before slaughter. Optaflexx™ improved daily gain, feed efficiency, carcass-adjusted daily gain, and …

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Optimizing Use Of Wet Sorghum Distiller’S Grains With Solubles In Flaked-Corn Finishing Diets (2005), R.W. Daubert, E.R. Loe, J.J. Sindt, J.T. Fox, M.A. Greenquist, M.E. Corrigan, James S. Drouillard, Brandon E. Depenbusch Jan 2005

Optimizing Use Of Wet Sorghum Distiller’S Grains With Solubles In Flaked-Corn Finishing Diets (2005), R.W. Daubert, E.R. Loe, J.J. Sindt, J.T. Fox, M.A. Greenquist, M.E. Corrigan, James S. Drouillard, Brandon E. Depenbusch

Kansas Agricultural Experiment Station Research Reports

A finishing trial was conducted using 637 heifers (initially 849 lb) to determine the optimal amount of wet sorghum distiller's grains with solubles (WDGS) in finishing diets containing steam-flaked corn. Dietary treatments consisted of six concentrations of WDGS (0, 8, 16, 24, 32, and 40%; dry basis). Heifers were placed into dirt-surfaced feedlot pens (25 to 30 heifers/pen; 4 pens/treatment) and fed for 58 days. Daily gain responded in a quadratic manner (P<0.01), peaking with 8% WDGS in the finishing diet. Average daily gains during the 58-day finishing period were 2.79, 3.11, 3.05, 2.89, 2.70, and 2.55 lb/day for cattle fed 0, 8, 16, 24, 32, and 40% WDGS, respectively. Dry matter intake decreased linearly (P<0.01) as content of WDGS increased. Feed efficiency was optimized with 16% WDGS (6.81, 6.49, 6.19, 6.64, 6.96, and 7.18 lb dry feed per lb gain for cattle fed 0, 8, 16, 24, 32, and 40% WDGS, respectively). Animal performance data were used to compute net energy gain (NEg) values of each diet, yielding estimates of 69.9, 71.7, 75.8, 71.2, 68.9, and 67.6 Mcal/cwt for diets containing 0, 8, 16, 24, 32, and 40% WDGS, respectively (quadratic effect, P<0.03). Ribeye area decreased linearly (P<0.02) as concentration of WDGS increased in the diet. The percentage of USDA Yield Grade 1 carcasses decreased linearly (P<0.05), and the percentage of USDA Yield Grade 3 carcasses increased linearly (P=0.05) as the content of WDGS was increased. Average USDA Yield Grade increased linearly (P<0.02) as content of WDGS was increased. Grid-based carcass values were not significantly different across dietary treatments. Regression analysis of efficiency data indicates that the optimum amount of sorghum WDGS in steam-flaked corn diets is approximately 15%. Diets containing as much as 24% WDGS yielded efficiencies equal or superior to diets containing no WDGS.

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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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