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Kansas Agricultural Experiment Station Research Reports

2000

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Articles 1 - 30 of 105

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Kansas Fertilizer Research 1999, Ray E. Lamond Jan 2000

Kansas Fertilizer Research 1999, Ray E. Lamond

Kansas Agricultural Experiment Station Research Reports

No abstract provided.

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Field Research 2000, Dale L. Fjell Jan 2000

Field Research 2000, Dale L. Fjell

Kansas Agricultural Experiment Station Research Reports

No abstract provided.

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2000 Agricultural Research Southeast Agricultural Research Center, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service Jan 2000

2000 Agricultural Research Southeast Agricultural Research Center, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service

Kansas Agricultural Experiment Station Research Reports

No abstract provided.

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Effects Of Frequency Of Supplementation On Performance Of Beef Cows Grazing Winter Pasture, C.G. Farmer, R.C. Cochran, D.D. Simms, E.A. Klevesahl, T.A. Wickersham Jan 2000

Effects Of Frequency Of Supplementation On Performance Of Beef Cows Grazing Winter Pasture, C.G. Farmer, R.C. Cochran, D.D. Simms, E.A. Klevesahl, T.A. Wickersham

Kansas Agricultural Experiment Station Research Reports

One hundred twenty spring-calving Hereford x Angus cows grazing low-quality tallgrass-prairie forage during the winter of 1998 were fed a 43% crude protein supplement 2, 3, 5, or 7 days a week. Supplement was fed at 4 lb/head daily to cows supplemented daily. The other cows still received 28 lb per week but divided equally among feedings. Cumulative performance (measured by changes in body condition score and body weight) was slightly better with increased supplementation frequency. However, the magnitude of differences in body condition and body weight changes, even for the most extreme treatment comparisons, were relatively small.

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The Effect Of Long-Term Management Of Native Grass Pastures On Steer Gains, F.K. Brazle, Dale L. Lanham, Jeffrey L. Davidson Jan 2000

The Effect Of Long-Term Management Of Native Grass Pastures On Steer Gains, F.K. Brazle, Dale L. Lanham, Jeffrey L. Davidson

Kansas Agricultural Experiment Station Research Reports

Three hundred thirteen mixed breed steers (558 lb) were used to determine the effect of long-term management of native grass pastures on gain. Steers were allotted randomly to eight pastures previously grazed for 1/2 season (1 steer/2 acres from April to July 15, 81 days) or 3/4 season (1 steer/3 acres from April to August 15, 112 days) from 1990 to 1998. In 1999, all pastures were stocked at 1 steer/2 acres and grazed 83 days until July 15 or 16. The steers received free-choice mineral and were supplemented six times with 2 lb of 20% crude protein range cubes …

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Effects Of Nonprotein Nitrogen Source In Blocks On Rumen Parameters Of Steers Fed Prairie Hay, C.A. Löest, B.D. Lambert, A.M. Trater, Evan C. Titgemeyer, James S. Drouillard Jan 2000

Effects Of Nonprotein Nitrogen Source In Blocks On Rumen Parameters Of Steers Fed Prairie Hay, C.A. Löest, B.D. Lambert, A.M. Trater, Evan C. Titgemeyer, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Six ruminally cannulated steers (1012 lb) were fed prairie hay ad libitum supplemented with cooked molasses blocks that contained either 60% crude protein 83% of which came from urea (UREA block) or 60% crude protein with 42% from urea and 42% from biuret (UREA/BIURET block). Blocks were broken into small pieces to facilitate consumption and were fed once daily at .125% of body weight. Rumen samples were collected on days 3, 7, 14, and 21 at 0, 1, 2, 4, 6, 8, 12, and 16 hours after feeding blocks. Averaged over time, ruminal ammonia and total volatile fatty acid concentrations …

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Alfalfa Hay Levels In Limit-Fed, High-Energy, Growing Diets For Beef Steers, Sean P. Montgomery, J.J. Sindt, T.B. Farran, H.J. Labrune, R.D. Hunter, James J. Higgins, T.A. Nutsch, R.A. Stock, James S. Drouillard Jan 2000

Alfalfa Hay Levels In Limit-Fed, High-Energy, Growing Diets For Beef Steers, Sean P. Montgomery, J.J. Sindt, T.B. Farran, H.J. Labrune, R.D. Hunter, James J. Higgins, T.A. Nutsch, R.A. Stock, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

One hundred sixty-four crossbred beef steers were used in a 102-day growing study to determine optimum levels of alfalfa hay in limit-fed, high-energy, growing diets. Diets contained steam-flaked corn and 40% Sweet Bran® brand wet corn gluten feed (dry matter basis) with 0, 10, or 20% ground alfalfa hay. A fourth diet containing steam-flaked corn (no Sweet Bran) and 20% ground alfalfa hay was used as a control. Average daily gains and feed efficiencies in the growing phase were greater (P<.05) for cattle fed no alfalfa than for cattle fed the control, 10% alfalfa, or 20% alfalfa diets. Steers fed the control and 20% alfalfa diets had increased rates of dry matter intake (P<.05) compared to those fed no alfalfa. At the end of the growing phase, all cattle were placed on a common finishing diet and fed for 101 days. Dry matter intakes during the finishing phase for cattle previously fed no alfalfa were numerically less than intakes for cattle fed other diets and significantly less than intakes for cattle previously fed the control diet. Feed efficiencies were greater for cattle previously fed 20% alfalfa diets than those fed the control diet (P<.05). Average daily gains did not differ (P>.40) among diets during the finishing phase.

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Effects Of Feeding Two Microbial Additives In Sequence On Growth Performance And Carcass Characteristics Of Finishing Heifers, G.L. Huck, K.K. Kreikemeier, G.A. Ducharme Jan 2000

Effects Of Feeding Two Microbial Additives In Sequence On Growth Performance And Carcass Characteristics Of Finishing Heifers, G.L. Huck, K.K. Kreikemeier, G.A. Ducharme

Kansas Agricultural Experiment Station Research Reports

Four hundred fifty heifers (846 lb) were used in a 126-day experiment to investigate the effects of feeding two microbial additives, Lactobacillus acidophilus BG2FO4 (MicroCell) and Propionibacterium freudenreichii P-63 (MicroCell PB), alone or in sequence, on feedlot growth performance and carcass characteristics. A 21-day step-up period preceded heifers being placed on a final finishing diet containing 10% corn silage, 42% steam-flaked corn, 42% high-moisture corn, 3% soybean meal, and 3% mineral supplement. Premeasured amounts of microbial additive were mixed with water before being mixed directly with the total ration. Treatments consisted of 1) no microbial additive; 2) MicroCell for the …

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Supplementation Strategies For Forage-Fed Beef Steers, R.D. Hunter, T.A. Nutsch, James S. Drouillard, Dale A. Blasi Jan 2000

Supplementation Strategies For Forage-Fed Beef Steers, R.D. Hunter, T.A. Nutsch, James S. Drouillard, Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

A comparison was made of different supplementation strategies for steer calves wintered on brome hay for 109 days. Treatments consisted of no supplement, 1.33 lb/head daily of a 30% protein range cube, a commercially available free-choice block supplement containing 40% crude protein (19% as non-protein nitrogen), and a soy-based block supplement containing soy solubles and full-fat soybeans with 40% crude protein (25% as nonprotein nitrogen). Following the backgrounding phase, steers were placed onto finishing rations and fed for an additional 152 days before being slaughtered. Gain during the growing phase was greater for all supplemented cattle than for unsupplemented controls. …

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Effects Of Carnitine On Performance Of Finishing Steers, R.H. Greenwood, C.A. Löest, Evan C. Titgemeyer, James S. Drouillard Jan 2000

Effects Of Carnitine On Performance Of Finishing Steers, R.H. Greenwood, C.A. Löest, Evan C. Titgemeyer, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Ninety-five crossbred steers (787 lb initial body weight) were fed finishing diets (14.5% crude protein) for 129 days. Diets were based on steam-flaked corn and contained 6% alfalfa and 4% tallow. Steers were supplemented with 2 g per day of L-carnitine, or not supplemented (control). Feed intakes, gains, and feed efficiencies were not impacted by carnitine supplementation. However, steers receiving L-carnitine had fatter carcasses as indicated by tendencies (P<.2) for more subcutaneous fat, higher marbling scores, and higher yield grades. Carnitine supplementation may increase fat deposition and alter carcass quality of finishing cattle.

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Effects Of Supplementation Of Limit-Fed Growing Diets With Either Soybean Meal Or Nonenzymatically Browned Soybean Meal On Steer Performance, C.M. Coetzer, C.A. Löest, D.J. Bindel, H. Labrune, R.D. Hunter, T.A. Nutsch, James J. Higgins, James S. Drouillard Jan 2000

Effects Of Supplementation Of Limit-Fed Growing Diets With Either Soybean Meal Or Nonenzymatically Browned Soybean Meal On Steer Performance, C.M. Coetzer, C.A. Löest, D.J. Bindel, H. Labrune, R.D. Hunter, T.A. Nutsch, James J. Higgins, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Seventy two individually fed Angus x Hereford steers (642 lb) were used to evaluate the effects of supplementing limit-fed, growing diets with either soybean meal (SBM) or nonenzymatically browned soybean meal (NSBM). Eight steers were allotted to a control diet composed of 39.1% high-moisture corn, 42% cottonseed hulls, 10.4% ground corn, 5% cane molasses 2.25% urea, and 1.5% vitamins and minerals (dry basis). The remaining steers were allotted to diets that derived 100, 80, 60, or 40% of their supplemental protein from SBM or 60, 45, 30, or 15% of their supplemental protein from NSBN. The balance of supplemental protein …

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Effects Of High-Grain Or High-Roughage Transition Diets On Finishing Performance Of Cattle Previously Fed High-Concentrate Growing Diets, Sean P. Montgomery, J.J. Sindt, T.B. Farran, H.J. Labrune, R.D. Hunter, James J. Higgins, T.A. Nutsch, James S. Drouillard Jan 2000

Effects Of High-Grain Or High-Roughage Transition Diets On Finishing Performance Of Cattle Previously Fed High-Concentrate Growing Diets, Sean P. Montgomery, J.J. Sindt, T.B. Farran, H.J. Labrune, R.D. Hunter, James J. Higgins, T.A. Nutsch, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Three hundred twenty-eight crossbred beef steers previously fed high-concentrate growing diets had ad libitum access to one of two transition diets prior to initiation of the finishing phase. Transition diets consisted of 58% steam-flaked corn and 30% alfalfa hay or of 23% steamflaked corn and 65% alfalfa hay (DM basis). Average daily gains, dry matter intakes, and feed efficiencies during the transition phase were greater for steers fed the high-grain diet than for steers fed the high-roughage diet (P<.01). This resulted in heavier carcass weights at the end of the subsequent finishing phase for steers fed the high-grain transition diet (P<.05). Average daily gains and feed efficiencies in the finishing phase were not affected by the type of diet fed during the transition phase (P>.20).

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Effects Of Sickness On Weight Gain And Radiant Energy Loss In Recently Received Feeder Cattle, M.F. Spire, J.M. Sargeant, James S. Drouillard Jan 2000

Effects Of Sickness On Weight Gain And Radiant Energy Loss In Recently Received Feeder Cattle, M.F. Spire, J.M. Sargeant, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Sickness from undifferentiated respiratory disease in recently received feeder cattle reduced weight gain and altered radiant energy loss. Over a 35-day receiving period, weight gains were reduced 26.3% if an animal was diagnosed as sick once and 48.1% if diagnosed sick more than once. Thermal profiles obtained 10 or more days following clinical illness were cooler than profiles of animals never diagnosed as being sick. Our data suggest that respiratory disease alters metabolic activity as evidenced by reduced weight gain and a detectable decrease in radiant energy loss from the body surface.

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Effects Of Dystocia And Confined Calving On Calf-Morbidity Rate From Birth To Weaning, M.W. Sanderson, D.A. Dargatz Jan 2000

Effects Of Dystocia And Confined Calving On Calf-Morbidity Rate From Birth To Weaning, M.W. Sanderson, D.A. Dargatz

Kansas Agricultural Experiment Station Research Reports

An analysis was performed on data from a national survey of US beef cow-calf producers to quantify the effects of management factors on calf-morbidity risk from birth to weaning. The analysis included 2,490 herds from 23 states. A high calf-morbidity herd was defined as one with greater than 10% morbidity. The rate of dystocia in the herd was categorized into five levels. All dystocia levels were associated significantly with increased risk of being a high calf-morbidity herd. Having greater than 70% of cows and heifers calve in confinement also was associated with increased risk of being a high calf-morbidity herd. …

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Measuring The Finishing Performance Of Steers And Heifers, Michael R. Langemeier, R. Jones, Gerry L. Kuhl Jan 2000

Measuring The Finishing Performance Of Steers And Heifers, Michael R. Langemeier, R. Jones, Gerry L. Kuhl

Kansas Agricultural Experiment Station Research Reports

This study examined improvements in the finishing performance of steers and heifers from 1990 to 1998 by measuring the rate of technological change. The rates of technological change were 0.58% per year for finishing steers and 1.01% per year for finishing heifers. The relatively higher rate for heifers indicates that technological change over the study period favored the performance of heifers.

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Effects Of Ph, Myoglobin Form, And Endpoint Temperature On Cooked Ground Beef Color, M.K. Schoenbeck, Donald H. Kropf, Melvin C. Hunt, S. Hawthorne, Sally L. Stroda Jan 2000

Effects Of Ph, Myoglobin Form, And Endpoint Temperature On Cooked Ground Beef Color, M.K. Schoenbeck, Donald H. Kropf, Melvin C. Hunt, S. Hawthorne, Sally L. Stroda

Kansas Agricultural Experiment Station Research Reports

Beef quadriceps muscles from nine pH groups (5.5 - 6.4 in .1 increments) were ground; mixed with fat (20%); formed into patties whose myoglobin was in either the oxy or deoxy state; and cooked to four endpoint temperatures (150, 160, 170, or 180°F). Internal cooked patty color was evaluated visually and instrumentally. Patties containing deoxymyoglobin with pH 6.2 or higher and cooked to 150 and 160°F were redder visually and instrumentally than those with a lower pH. Similar trends, but not as pronounced, were observed with patties containing oxymyoglobin. Deoxymyoglobin was more resistant to denaturation and, thus, made patties more …

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Quality And Display Life Of Chilled Or Frozen All-Natural Beef And Beef-Buffalo Frankfurters, R. Limsupavanich, Donald H. Kropf, K.A. Hachmeister, T.M. Loughin, Elizabeth A.E. Boyle, Michael A. Boland Jan 2000

Quality And Display Life Of Chilled Or Frozen All-Natural Beef And Beef-Buffalo Frankfurters, R. Limsupavanich, Donald H. Kropf, K.A. Hachmeister, T.M. Loughin, Elizabeth A.E. Boyle, Michael A. Boland

Kansas Agricultural Experiment Station Research Reports

Chilled (35±3°F) or frozen (0±3°F) all-natural beef and beef-buffalo frankfurters made with or without sodium nitrite (NaNO2) were evaluated. Treatments included frankfurters made with: all-natural beef without NaNO2 and displayed frozen (B0F); all-natural beef and buffalo without NaNO2 and displayed frozen (BU0F); all-natural beef with NaNO2 and displayed frozen (BNF) or chilled (BNC). Batter pH, smokehouse yield, and proximate analysis were determined. No differences (P>.05) were noted in batter pH, smokehouse yield, proximate analysis, or cooking yield. Day of display had no influence (P>.05) on oxidation. However, BU0F had the highest (P<.05) oxidation value, a measure of potential rancidity. For all treatments, instrumentally measured lightness increased during display, while redness decreased. Both B0F and BU0F had lower (P<.05) redness and nitrosoheme pigments than BNC. Purge loss increased (P<.05) with longer display. Microbial counts and pH of frozen products were not different (P>.05) during display. Nitrite-free frankfurters can …

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A Survey On The Use Of Blade Tenderizers By Beef Fabrication Plants, C.D. George-Evins, John A. Unruh, James L. Marsden, Curtis L. Kastner Jan 2000

A Survey On The Use Of Blade Tenderizers By Beef Fabrication Plants, C.D. George-Evins, John A. Unruh, James L. Marsden, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

A questionnaire to determine the use of blade tenderizers in beef fabrication facilities was sent to 241 members of the North American Meat Processors Association (NAMP). Eighty-four percent of the 90 respondents used blade tenderizers. These subprimals were at least sometimes tenderized by the following percentages of respondents: tenderloins, 7.9; chuck cuts, 18; round cuts, 36; ribeyes, 38; strip loins, 56; and top sirloin butts, 62. If a processor blade-tenderized a particular cut, they tenderized a majority of their production for that cut, generally with multiple passes through the tenderizer. For example, the 62% of respondents who tenderized top sirloin …

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Effects Of Quality Grade, Aging Period, Blade Tenderization, And Degree Of Doneness On Tenderness Of Inside Round Steaks, C.D. George-Evins, John A. Unruh, James L. Marsden, Curtis L. Kastner Jan 2000

Effects Of Quality Grade, Aging Period, Blade Tenderization, And Degree Of Doneness On Tenderness Of Inside Round Steaks, C.D. George-Evins, John A. Unruh, James L. Marsden, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

We used 162 inside rounds to determine the influence of different quality grades, postmortem aging periods, blade tenderization passes, and degree of doneness on thawing and cooking losses and Warner-Bratzler Shear force (WBS, tenderness). Select (SEL), Choice (CHO), and Certified Angus Beef™ (CAB) inside rounds were aged for 7, 14, or 21 days and not tenderized (0X) or blade tenderized one (1X) or two (2X) times. Steaks from each inside round were assigned randomly to final endpoint cooking temperatures of 150, 160, and 170°F. Percentage of thawing loss was higher (P<.05) for steaks aged 7 days than steaks aged 14 and 21 days. For CHO steaks only, cooking loss was higher (P<.05) for the 2X group compared to the 0X and 1X groups. Steaks aged 14 and 21 days had lower (P<.05) WBS than steaks aged 7 days. Cooking loss and WBS were higher (P<.05) with each increase in endpoint cooking temperature. Postmortem aging (14 or 21 days) and lower endpoint cooking temperatures were the most effective methods to improve WBS of inside round steaks.

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K-State Turfgrass Research 2000, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service Jan 2000

K-State Turfgrass Research 2000, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service

Kansas Agricultural Experiment Station Research Reports

This publication contains results of projects done throughout 1999 by K-State turfgrass researchers. You can see many of these projects in progress on August 3, 2000 at the Kansas Turfgrass Field Day. This will be held at the Rocky Ford Turfgrass Research Center in Manhattan. What questions can we answer for you? Maybe you're curious about the best performing tall fescue cultivars for lawns, bermudagrasses for fairways, or bentgrasses for greens. If you need to know how to manage fungicide programs to control diseases on tall fescue lawns or bentgrass greens, that information is here. As a superintendent, maybe you're …

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Air Quality In Swine-Finishing Barns (2000), B Z. Predicala, Ronaldo G. Maghirang, S B. Jerez, J E. Urban, Robert D. Goodband Jan 2000

Air Quality In Swine-Finishing Barns (2000), B Z. Predicala, Ronaldo G. Maghirang, S B. Jerez, J E. Urban, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

Air quality was assessed in two commercial swine-finishing barns: one naturally ventilated (NV) and one mechanically ventilated (MV). The concentrations of inhalable dust (IDC), respirable dust (RDC), airborne viable particles, carbon dioxide (CO2), and ammonia (NH3), as well as the air temperature and relative humidity (RH) inside the barns were monitored for 41 weeks. The two barns did not differ significantly (P>0.05) in IDC, RDC, and bioaerosol concentration. Overall mean levels for IDC, RDC, CO2, and NH3 were below the threshold limit values specified by the American Conference of Governmental Industrial Hygienists (ACGIH). However, some measurements exceeded the exposure …

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Effects Of A Seaweed Extract On Weanling Pig Growth Performance And Immune Function During An Acute Enteric Disease Challenge (2000), J L. Turner, J R. Werner, C M. Hill, K Skjolaas, S Hogge, J Ernest Minton, Steven S. Dritz Jan 2000

Effects Of A Seaweed Extract On Weanling Pig Growth Performance And Immune Function During An Acute Enteric Disease Challenge (2000), J L. Turner, J R. Werner, C M. Hill, K Skjolaas, S Hogge, J Ernest Minton, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 95 pigs (initially 15 lb and 17 d of age) was used in a 28 d growth trial to determine the effects of Ascophyllum nodosum seaweed extract (ANOD) on weanling pig growth performance and immune function in response to enteric disease challenge with Salmonella typhimurium (ST). Experimental treatments were arranged in a 2 x 4 factorial with main effects of disease challenge (control vs. ST challenge) and dietary addition of ANOD (0, 0.5, 1.0, and 2.0% of diet). Results suggest little beneficial effect of dietary ANOD on growth performance or immune response in the presence or absence …

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Effects Of Increasing L-Lysine Hcl In Corn-Soybean Meal Diets On Growth Performance And Carcass Characteristics Of Growing-Finishing Gilts (2000), M De La Llata, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2000

Effects Of Increasing L-Lysine Hcl In Corn-Soybean Meal Diets On Growth Performance And Carcass Characteristics Of Growing-Finishing Gilts (2000), M De La Llata, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

An experiment using 1,200 gilts (65 to 260 lb) was conducted to determine the effects of increasing L-lysine HCl in cornsoybean meal diets on growth performance and carcass characteristics. The dietary treatments consisted of a control diet with no added L-lysine HCl and six increasing levels of L-lysine HCl (1, 2, 3, 4, 5, and 6 lb/ton) replacing the lysine provided by soybean meal. A negative control treatment was used to ensure that dietary lysine was not above required levels. Increasing L-lysine HCl above 3 lb/ton decreased ADG and increased F/G. Backfat was increased and FFLI decreased with increasing L-lysine …

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Effects Of Irradiation Of Spray-Dried Blood Meal And Animal Plasma On Nursery Pig Growth Performance (2000), B W. James, M J. Webster, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2000

Effects Of Irradiation Of Spray-Dried Blood Meal And Animal Plasma On Nursery Pig Growth Performance (2000), B W. James, M J. Webster, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two trials were conducted to determine the effects of irradiation of spray-dried blood meal and animal plasma on nursery pig growth performance. In Exp. 1, irradiation of spray-dried blood meal resulted in improved ADG and F/G and tended to increase ADFI for the 14 d experiment. The majority of the increase in growth performance occurred during the first week of the trial. In Exp. 2, ADG and ADFI were increased from d 0 to 10 for pigs fed irradiated spray-dried animal plasma compared to pigs fed regular spray-dried animal plasma. In addition, we observed differences in growth performance between different …

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Evaluation Of Two Prostaglandin Products In Pregnant Sows For Initiation Of Luteolysis (2000), E I. Evans, Jeffrey S. Stevenson, Duane L. Davis, Steven S. Dritz Jan 2000

Evaluation Of Two Prostaglandin Products In Pregnant Sows For Initiation Of Luteolysis (2000), E I. Evans, Jeffrey S. Stevenson, Duane L. Davis, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

We used 66 pregnant sows to compare serum progesterone concentrations following a single injection of either saline or one of two prostaglandin F2a products approved for use in swine. Pregnant sows in a commercial swine farm were assigned to one of the three groups in a completely randomized design balanced across treatment for parity and day of gestation. Each sow received a single intramuscular dose (2 mL) on d 111, 112, or 113 of gestation. Mean serum progesterone concentrations were decreased significantly at 6 and 12 hours after dose administration of both prostaglandin products. However, these effects did not differ. …

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Influence Of Dry, Extruded-Expelled Soybean Meal From Different Manufacturers On Growth Performance Of Nursery Pigs (2000), J C. Woodworth, M U. Steidinger, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband Jan 2000

Influence Of Dry, Extruded-Expelled Soybean Meal From Different Manufacturers On Growth Performance Of Nursery Pigs (2000), J C. Woodworth, M U. Steidinger, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 150 pigs (initially 22 lb; 42 d of age) was used to determine the influence of dry, extruded-expelled soybean meal from three different manufacturers on growth performance of pigs. No differences were observed for ADG, ADFI, or F/G between any of the sources. All three sources resulted in performance similar to that with a cornsoybean meal diet with added fat. These results confirm the accuracy of the energy values published in the 1998 Swine Day Report for dry, extruded-expelled soybean meal.; Swine Day, Manhattan, KS, November 16, 2000

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Influence Of Calcium Propionate On Starter Pig Performance (2000), D E. Real, J C. Woodworth, M J. Webster, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2000

Influence Of Calcium Propionate On Starter Pig Performance (2000), D E. Real, J C. Woodworth, M J. Webster, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A 24-d growth study was conducted to evaluate the effects of low rates of a dietary acidifier, calcium propionate, on weanling pig growth performance. Experimental diets, fed from d 0 to 10, were a control diet with no acidifier, the control diet with 4 lb/ton of Kemgest, or the control diet with 4 or 8 lb/ton calcium propionate. From d 10 to 24, pigs were fed a common phase II diet containing no acidifier. Adding a low rate of acidifier to the diet had no influence on pig performance.; Swine Day, Manhattan, KS, November 16, 2000

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Market Versus Formula-Derived Prices For Segregated Early-Weaned Pigs (2000), Kevin C. Dhuyvetter Jan 2000

Market Versus Formula-Derived Prices For Segregated Early-Weaned Pigs (2000), Kevin C. Dhuyvetter

Kansas Agricultural Experiment Station Research Reports

A formula for deriving the price of segregated early-weaned (SEW) pigs using prices of grain, soybean meal, and market hog was estimated based on return on investment being equal for all three phases of production—farrowing, nursery, and finishing. The USDA- reported SEW pig prices were compared with formula-derived prices. The level of correlation between these two series was sensitive to how prices of grain, soybean meal, and market hog were chosen. Using expected prices in the formula resulted in SEW prices that were correlated strongly with reported market prices. Using hindsight cash prices in the formula resulted in SEW formula …

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Optimal Parity Distribution – When Is The Best Time To Cull Sows? (2000), Kevin C. Dhuyvetter Jan 2000

Optimal Parity Distribution – When Is The Best Time To Cull Sows? (2000), Kevin C. Dhuyvetter

Kansas Agricultural Experiment Station Research Reports

The economic impact of alternative sowculling strategies was examined by simulating costs and returns for a farrowing-to-weaning swine operation. Culling strategies considered were to sell sows after parity 1 (P1) through parity 10 (P10). These 10 culling strategies resulted in different parity distributions. The optimal parity distribution is a complex issue, because it is related to conception rates, litter size, feed intake, as well as other factors. Results of this analysis indicate that the most economical time to cull a sow is after her eighth or ninth parity. This results in a breeding herd comprised of 18 to 20% gilts …

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Effects Of Dietary Electrolyte Balance On Sow And Litter Performance, Blood Chemistry, And Urine Chemistry In Lactating Sows (2000), Robert H. Hines, C A. Maloney, D J. Lee, D W. Dean, H Cao, J S. Park, Joel M. Derouchey, Joe D. Hancock Jan 2000

Effects Of Dietary Electrolyte Balance On Sow And Litter Performance, Blood Chemistry, And Urine Chemistry In Lactating Sows (2000), Robert H. Hines, C A. Maloney, D J. Lee, D W. Dean, H Cao, J S. Park, Joel M. Derouchey, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Decreasing the dietary electrolyte balance (dEB) in diets for lactating sows from 500 to 100 mEq/kg increased piglet survivability but had no effect on litter weight gain. Decreased dEB reduced pH and bacteria in the sows urine and, thus, could influence the health status of the reproductive tract.; Swine Day, Manhattan, KS, November 16, 2000

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