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Kansas Agricultural Experiment Station Research Reports

Journal

1993

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Articles 1 - 30 of 95

Full-Text Articles in Life Sciences

Use Of Cystorelin® And Artificial Insemination In Repeat-Breeding Beef Heifers After Estrous Synchronization, J.P. Holz, P.L. Houghton, M.F. Spire Jan 1993

Use Of Cystorelin® And Artificial Insemination In Repeat-Breeding Beef Heifers After Estrous Synchronization, J.P. Holz, P.L. Houghton, M.F. Spire

Kansas Agricultural Experiment Station Research Reports

Gonadotropin-releasing hormone (GnRH) was administered to a group of 13- to 14- month-old Angus and Angus crossbred repeat-breeding heifers at the time of the second or third artificial insemination to determine its effect on conception rates. Little benefit was derived from the use of GnRH at either second or third service in highly developed repeat-breeding heifers.

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Effects Of Wheat Gluten And Plasma Protein On Growth Performance And Digestibility Of Nutrients In Nursery Pigs (1993), J S. Pendergraft, C G. Mills, L L. Burnham, Robert H. Hines, Joe D. Hancock Jan 1993

Effects Of Wheat Gluten And Plasma Protein On Growth Performance And Digestibility Of Nutrients In Nursery Pigs (1993), J S. Pendergraft, C G. Mills, L L. Burnham, Robert H. Hines, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to determine the nutritional value of wheat gluten and spray-dried porcine plasma in diets for weanling pigs. For the experiment, 120 pigs (14 lb avg initial body wt) were used in a 35-d growth assay. Treatments fed from d 0 to 14 postweaning were: 1) a dried skim milk-dried whey-soybean mealbased control; and 2, 3, and 4) spray-dried wheat gluten, spray-dried porcine plasma, and a blend of the wheat gluten and porcine plasma used to replace dried skim milk on a protein basis. All pigs were fed the same corn-soybean meal-dried whey-based diet from d 14 …

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Effect Of Density Of Steam Flaked Milo On Animal Performance, Mill Production Rate, And Subacute Acidosis, Robert T. Brandt Jr., A.S. Freeman, T.P. Eck, Christopher D. Reinhardt, Keith C. Behnke Jan 1993

Effect Of Density Of Steam Flaked Milo On Animal Performance, Mill Production Rate, And Subacute Acidosis, Robert T. Brandt Jr., A.S. Freeman, T.P. Eck, Christopher D. Reinhardt, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

In Trial 1, 336 yearling steers (755 lb) were fed diets containing milo flaked to 22 (L), 25 (M), or 28 (H) lb/bu. The steers fed L consumed 3.2% less dry matter than cattle fed H (P<.05) and had 6.9% lower gains (P<.05). Feed efficiency tended (P=.15) to favor cattle fed H. The H milo was flaked 27% faster than M and 67% faster than L (P<.0001), resulting in lower production cost for the heavy flakes. In Trial 2, six ruminally cannulated steers were fed the same diets used in Trial 1 in a replicated 3x3 Latin square. After adaptation to the respective diets, the cattle were fasted and then overfed to simulate a drastic intake fluctuation. The L diet was fermented more rapidly than the H diet, resulting in greater ruminal pH depression (P<.10) following overconsumption. Under the conditions of this experiment, flaking milo more intensively than 28 lb/bu (58.7% starch gelatinization) resulted in decreased consumption, lower mill efficiency, and increased propensity for acidosis in finishing steers.

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Effect Of Bacterial Inoculants On The Preservation Of Alfalfa And Whole-Plant Corn Silages, K.K. Bolsen, R.N. Sonon, B.S. Dalke Jan 1993

Effect Of Bacterial Inoculants On The Preservation Of Alfalfa And Whole-Plant Corn Silages, K.K. Bolsen, R.N. Sonon, B.S. Dalke

Kansas Agricultural Experiment Station Research Reports

Inoculated and control alfalfa and corn silages were compared in pilot-scale silos. Inoculated silages for both crops had higher lactic acid contents and DM recoveries and lower values for pH, acetic acid, ethanol, and ammonia-nitrogen than controls"”evidence that the inoculants produced a more efficient fermentation. These results are consistent with numerous studies that compared untreated and inoculant-treated silages over a wide range of crops and ensiling conditions in our research during the past several years.

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Effect Of Supplemental Fat And Thermal Stress On Nitrogen And Energy Metabolism Of Finishing Heifers, Robert T. Brandt Jr., J.E. Williams, Timothy J. Jones Jan 1993

Effect Of Supplemental Fat And Thermal Stress On Nitrogen And Energy Metabolism Of Finishing Heifers, Robert T. Brandt Jr., J.E. Williams, Timothy J. Jones

Kansas Agricultural Experiment Station Research Reports

Twelve British and British crossed heifers fed whole shelled corn finishing diets were used in a 2 x 2 factorially arranged experiment to study the main effects of and interactions between feeding supplemental tallow (0 vs 4%) and thermal heat stress (55°F vs 90°F). Heifers were maintained in temperature- and humidity-controlled environmental rooms. Neither supplemental fat or thermal stress affected dry matter intake or total tract digestibility of organic matter, starch, NDF, or ADF. However, heat stress elevated water consumption (P<.01) and rectal temperature (P<.01). When fed at equal intakes, heifers consuming tallow-supplemented diets retained more (P<.05) nitrogen, and tallowsupplemented diets had a higher (P=.08) ME value than non-tallow diets; these effects were not observed when heifers were fed ad libitum. Adding tallow to diets of finishing cattle may help maintain performance under circumstances where feed intake is restricted.

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State Of The Kansas Swine Industry (1993), B L. Moore, Ted C. Schroeder, Michael R. Langemeier, Barry L. Flinchbaugh Jan 1993

State Of The Kansas Swine Industry (1993), B L. Moore, Ted C. Schroeder, Michael R. Langemeier, Barry L. Flinchbaugh

Kansas Agricultural Experiment Station Research Reports

The Kansas hog industry represented 3.8% of U.S. hog production in 1977 and had peak production of nearly 3.4 million head in 1971. Since that time, the industry has declined significantly, representing only 2.5% of U.S. hog production with 2.5 million head produced in 1992. Kansas hog production has declined, while neighboring Nebraska has enjoyed increased production and share of U.S. production. Kansas hog production is also highly concentrated, with the largest 3.5% of producers owning 45.5% of the state's hog inventory. Efforts to identify specific causes and to change the economic environment will be required to reverse the decline …

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Effects Of Cellulase Enzyme And A Bacterial Feed Additive On The Nutritional Value Of Sorghum Grain For Finishing Pigs (1993), I H. Kim, C R. Risley, Robert H. Hines, Joe D. Hancock Jan 1993

Effects Of Cellulase Enzyme And A Bacterial Feed Additive On The Nutritional Value Of Sorghum Grain For Finishing Pigs (1993), I H. Kim, C R. Risley, Robert H. Hines, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

One hundred and twenty-eight finishing pigs (113 lb average initial body wt) were used to determine the effects of adding cellulase enzyme and Bacillus bacteria to sorghum-based diets on growth performance, carcass merit, and nutrient digestibility in finishing pigs. Treatments were: 1) corn-soybean meal-based positive control; 2) sorghum-soybean meal-based negative control; 3) Diet 2 with cellulase; and 4) Diet 2 with a bacterial feed additive (i.e., a mixture of Bacillus licheniformis, Bacillus subtilis, and Bacillus pumilus). There was a trend for greater average daily gain in pigs fed corn vs the sorghum treatments from d 0 to 28, but there …

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The Effects Of Dietary Soy Protein Source Fed To The Early-Weaned Pig On Subsequent Growth Performance (1993), K Q. Owen, B T. Richert, K G. Friesen, L J. Kats, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 1993

The Effects Of Dietary Soy Protein Source Fed To The Early-Weaned Pig On Subsequent Growth Performance (1993), K Q. Owen, B T. Richert, K G. Friesen, L J. Kats, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two hundred and ninety five pigs (initially 12.3 lb and 21 d of age) were used to determine the effect of different soy protein sources fed during phase I on subsequent growth performance. Dietary treatments were based on different soy protein sources added to the phase I (d 0 to 14 postweaning) diet. Pigs were fed one of five experimental treatments: 1) control diet (casein); 2) moist extruded soy protein concentrate (MESPC); 3) soybean meal (SBM); 4) soy protein concentrate (SPC); 5) moist extruded soy flour (MESF). The phase I diet contained 20% dried whey (DW), 7.5% spray dried porcine …

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Appropriate Level Of Lactose In A Plasma Protein-Based Diet For The Early-Weaned Pig (1993), K Q. Owen, L J. Kats, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 1993

Appropriate Level Of Lactose In A Plasma Protein-Based Diet For The Early-Weaned Pig (1993), K Q. Owen, L J. Kats, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 367 weanling pigs (initially 11.8 lb and 21 d of age) was used in a 28 d growth assay to determine the appropriate level of lactose needed in phase I diets containing spray-dried porcine plasma (SDPP) for the early-weaned pig. Pigs were blocked by weight and randomly assigned to one of six experimental diets: a positive control or five diets calculated to contain 7, 11, 15, 19, or 23% lactose. The positive control was a high nutrient density diet (HNDD) containing 7.5% SDPP, 1.75% spray-dried blood meal (SDBM), and 20% edible grade dried whey. The five lactose …

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Sorghum Genotype And Particle Size Affect Growth Performance, Nutrient Digestibility, And Stomach Morphology In Finishing Pigs (1993), M R. Cabrera, P J. Bramel-Cox, Robert H. Hines, Joe D. Hancock, Keith C. Behnke Jan 1993

Sorghum Genotype And Particle Size Affect Growth Performance, Nutrient Digestibility, And Stomach Morphology In Finishing Pigs (1993), M R. Cabrera, P J. Bramel-Cox, Robert H. Hines, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

Seventy pigs (average initial body wt of 119 lb) were used to determine the effects of sorghum genotype on milling characteristics, growth performance, nutrient digestibility, and stomach morphology in finishing pigs. The pigs were fed a corn-soybean meal-based control diet, with the corn (Pioneer 3377) milled to a mean particle size of 600 μm. Hard-endosperm sorghum (Pioneer 8585) and soft-endosperm sorghum (Pioneer 894) were milled to mean particle sizes of 800, 600, and 400 μm and substituted for the corn in the control diet on a wt/wt basis, so that the overall treatment arrangement was a 2 × 3 factorial …

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Embryonic Survival And Variation In Embryonic Development On Day 11 Of Gestation (1993), R M. Blair, C M. Coughlin, J Ernest Minton, Duane L. Davis Jan 1993

Embryonic Survival And Variation In Embryonic Development On Day 11 Of Gestation (1993), R M. Blair, C M. Coughlin, J Ernest Minton, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

The primary objective of this study was to determine if embryo survival in gilts and primiparous sows was related to variations in the periovulatory profiles of estradiol- 17β, progesterone, and luteinizing hormone. A secondary objective was to compare embryo development and certain endocrine characteristics in gilts and primiparous sows. Sows (n=6) and gilts (n=6) were catheterized in the jugular vein on the day after weaning and day 14 of the estrous cycle, respectively. Additional females (1 gilt and 7 sows) were examined for characteristics of embryonic development, but blood samples were not collected. Embryo size and volume on day 11.5 …

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Reproductive Performance Of Yearling Beef Heifers After Estradiol Benzoate And Estrous Synchronization, R.P. Bolze, C.W. Peters Jan 1993

Reproductive Performance Of Yearling Beef Heifers After Estradiol Benzoate And Estrous Synchronization, R.P. Bolze, C.W. Peters

Kansas Agricultural Experiment Station Research Reports

Injectable estradiol (estradiol benzoate) was evaluated for its effect on the reproductive performance of yearling beef heifers whose estrous cycles were synchronized using the melengestrol acetate/prostaglandin F 2 α (MG- 2 A®/PG) system. Estradiol was injected 40 h after prostaglandin. Heifers were inseminated artificially (AI) 12 h after first observed heat during a 35-d AI period followed by 28 d of bull exposure. Estradiol had no effect on heat response or first-service pregnancy rate to AI during the synchronized period (5 d) and had no significant effect on overall AI pregnancy rate (35 d), cumulative pregnancy rate (63 d), or …

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Effects Of Application Of Water And Nitrogen On Nutrient Use From Corn And Sorghums By Pigs (1993), B T. Richert, P J. Bramel-Cox, Merle D. Witt, B J. Healy, Joe D. Hancock Jan 1993

Effects Of Application Of Water And Nitrogen On Nutrient Use From Corn And Sorghums By Pigs (1993), B T. Richert, P J. Bramel-Cox, Merle D. Witt, B J. Healy, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to determine the effects of growing conditions on nutrient yield and quality of corn and sorghum. Main effect treatments were: corn (C), bronze pericarp heterozygous-yellow endosperm sorghum (BS), and yellow pericarp homozygous-yellow endosperm sorghum (YS); optimal irrigation (I) and minimal irrigation (MI); 100 lb/acre of N fertilization (F) and no N fertilization (NF), in a 3 × 2 × 2 factorial arrangement. Grains were grown in 1988 (Year 1, with little rainfall) and 1989 (Year 2, with above average rainfall) in the semi-arid environment at Garden City, KS. In Year 1, sorghums yielded 15% more grain …

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The Influence Of Threonine:Lysine Ratios On Growth Performance And On Plasma Urea Nitrogen In Growing-Finishing Pigs Fed From 85 To 240 Lb (1993), K G. Friesen, L J. Kats, K Q. Owen, B T. Richert, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach Jan 1993

The Influence Of Threonine:Lysine Ratios On Growth Performance And On Plasma Urea Nitrogen In Growing-Finishing Pigs Fed From 85 To 240 Lb (1993), K G. Friesen, L J. Kats, K Q. Owen, B T. Richert, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Eighty crossbred pigs (initially 85.2 lb BW) were used in a 2 × 4 factorial arrangement to determine the influence of dietary threonine:lysine ratios on growth performance and plasma urea N in growing-finishing pigs. The experiment was conducted in three phases from 85.2 to 124.2, 139.1 to 203.1, and 204.9 to 241.1 lb, with pigs fed one of eight dietary treatments. Two levels of dietary lysine were fed (low vs high) and four levels of dietary threonine were fed within each lysine treatment (60, 65, 70, and 75% of dietary lysine). Dietary lysine decreased from 1.0% and .8% at 85.2 …

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Effect Of Methionine:Lysine Ratio On Growth Performance And Blood Metabolites Of Growing-Finishing Pigs (1993), L J. Kats, K G. Friesen, B T. Richert, K Q. Owen, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach Jan 1993

Effect Of Methionine:Lysine Ratio On Growth Performance And Blood Metabolites Of Growing-Finishing Pigs (1993), L J. Kats, K G. Friesen, B T. Richert, K Q. Owen, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Eighty growing-finishing pigs (40 barrows and 40 gilts) were used in three consecutive growth assays to determine the optimum methionine:lysine ratio for pigs weighing from 48 to 107 lb, 120 to 179 lb, and 191 to 245 lb, respectively. Each growth assay was to be conducted for a 28-d period with a 14-d transition period between assays. Pigs were allotted by weight and placed in pens each containing one barrow and one gilt. Pigs were assigned to one of eight experimental treatments with five replicate pens per treatment. Pigs were fed diets containing either high lysine (1.0, .9, or .8%, …

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In Vitro Digestibility Of Sorghum Parent Lines Predicts Nutritional Value Of Their Hybrid Offspring In Cannulated Finishing Pigs (1993), B J. Healy, P J. Bramel-Cox, Robert H. Hines, Joe D. Hancock Jan 1993

In Vitro Digestibility Of Sorghum Parent Lines Predicts Nutritional Value Of Their Hybrid Offspring In Cannulated Finishing Pigs (1993), B J. Healy, P J. Bramel-Cox, Robert H. Hines, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Nutritional value of eight sorghum hybrids, resulting from matings of four male lines with two male-sterile lines, was determined. The male lines were two sorghums with consistently high in vitro digestibility (High-digestibility 1 and Highdigestibility 2) and two sorghums with consistently low in vitro digestibility (Lowdigestibility 1 and Low-digestibility 2). The male-sterile lines were Kansas 52 and Redlan, two lines commonly used for genetic testing by sorghum breeders. The hybrids were fed to eight barrows fitted with ileal T-cannulas and also evaluated for starch digestibility in ruminal fluid. Corn was used as a control. Corn had greater ileal and total …

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Integrated Swine Systems "The Animal Component" - Phase One; The Kansas State University Survey (1993), B T. Richert, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1993

Integrated Swine Systems "The Animal Component" - Phase One; The Kansas State University Survey (1993), B T. Richert, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

A total of 650 questionnaires were sent to Kansas swine producers, and 279 were returned. There was an excellent distribution in producer size based on number of pigs marketed per year and producer age and educational level. The use of a lagoon to store swine waste is the most popular method in Kansas (38.8% of the respondents). One-third of the swine waste is disposed of by surface spreading and only 10.0% is applied primarily by soil injection. Less than one-half (45.5%) of the producers feel that nitrates in swine waste are environmental concerns and even less (27.0%) are concerned about …

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Economies Of Size For Farrow-To-Finish Hog Production In Kansas (1993), Michael R. Langemeier, Ted C. Schroeder Jan 1993

Economies Of Size For Farrow-To-Finish Hog Production In Kansas (1993), Michael R. Langemeier, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

Economies of size measure the impact on average cost of production of increasing the size of operation. Data from 91 farrow-to-finish operations enrolled in the Kansas Farm Management Associations in 1992 were used to empirically estimate economies of size. Results indicate that average total cost and operation size are significantly correlated, and that average total cost declines as operations become larger. Results also indicate a substantial variability in costs of production between producers. In fact, costs of production between producers of a given size vary more than costs of production between operations of different sizes.; Swine Day, Manhattan, KS, November …

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The Influence Of Dietary Lysine On Carcass Characteristics And Subprimal Cut Distribution Of High-Lean Growth Gilts Fed To 230 And 300 Lb (1993), S R. Stuewe, K G. Friesen, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, John A. Unruh Jan 1993

The Influence Of Dietary Lysine On Carcass Characteristics And Subprimal Cut Distribution Of High-Lean Growth Gilts Fed To 230 And 300 Lb (1993), S R. Stuewe, K G. Friesen, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, John A. Unruh

Kansas Agricultural Experiment Station Research Reports

Seventy-two high-lean growth gilts were used to determine the effects of dietary lysine on carcass characteristics and subprimal cut distribution of gilts fed to 230 or 300 lb. The gilts were fed one of six lysine treatments (digestible lysine of .44, .54, .64, .74, .84, and .94% corresponding to .55, .67, .79, .91, 1.03, and 1.15% total lysine, respectively). For gilts fed to 230 or 300 lb, effects on carcass characteristics or subprimal cut distribution were minimal. For gilts fed to 230 lb, only slight linear decreases in 402 ham and boneless 402C ham were observed as dietary lysine increased. …

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Influence Of Dietary Lysine On Growth Performance Of High-Lean Growth Gilts Fed From 160 To 300 Lb (1993), K G. Friesen, K Q. Owen, B T. Richert, L J. Kats, B J. Kerr, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, John A. Unruh, Donald H. Kropf Jan 1993

Influence Of Dietary Lysine On Growth Performance Of High-Lean Growth Gilts Fed From 160 To 300 Lb (1993), K G. Friesen, K Q. Owen, B T. Richert, L J. Kats, B J. Kerr, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, John A. Unruh, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

One-hundred eight high-lean growth gilts (159.6 lb) were used to determine the dietary lysine requirement to optimize growth performance from 160 to 300 lb. The experiment was designed as a randomized complete block, with initial weight serving as the blocking factor. Six dietary treatments were used, ranging from .44 to .94% digestible lysine (.59 to 1.16% total lysine). Pigs were housed in pens of three, with six replicate pens/treatment. Pig weights and feed disappearance were collected weekly to calculate average daily gain (ADG), average daily feed intake (ADFI), and feed efficiency (F/G). Average daily gain increased from 160 to 230 …

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Influence Of Dietary Lysine On Carcass Characteristics Of High-Lean Growth Gilts Fed From 80 To 160 Lb (1993), K G. Friesen, B J. Kerr, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, John A. Unruh, Donald H. Kropf Jan 1993

Influence Of Dietary Lysine On Carcass Characteristics Of High-Lean Growth Gilts Fed From 80 To 160 Lb (1993), K G. Friesen, B J. Kerr, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, John A. Unruh, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

Seventy-two high-lean growth gilts (initially 75.5 lb BW) were used to determine the influence of dietary lysine on carcass characteristics at 120 and 160 lb. Gilts were randomly selected for slaughter when the average weight of pigs in the pen equaled or exceeded 120 and 160 lb. The experiment was designed as a randomized complete block, with initial weight serving as the blocking factor. Six dietary treatments were included, ranging from .54 to 1.04% digestible lysine (.69 to 1.25% total dietary lysine). At 120 lb, hot carcass weight decreased and then increased as did dressing percentage for gilts fed increased …

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Kansas State University Swine Enterprise Record Summary (1993), B T. Richert, Michael R. Langemeier, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen Jan 1993

Kansas State University Swine Enterprise Record Summary (1993), B T. Richert, Michael R. Langemeier, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Approximately 30 swine operations are enrolled in the 1992 - 93 Kansas Swine Enterprise Record Program provided by Kansas State University. This program evaluates biological and economic performance and is part of a cooperative record-keeping project with extension personnel and swine producers in Kansas, Nebraska, and South Dakota. Records are summarized every 6 months, and the corresponding data are pooled to form state and regional averages. This summary is the combined data for the 18 farrow-to-finish operations in Kansas that kept records during 1992. The semiannual data represents the last 6 months of 1992, whereas the annual data are for …

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Influence Of Dietary Lysine On Growth Performance And Tissue Accretion Rates Of High-Lean Growth Gilts Fed From 80 To 160 Lb (1993), K G. Friesen, L J. Kats, B J. Kerr, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, John A. Unruh, Donald H. Kropf Jan 1993

Influence Of Dietary Lysine On Growth Performance And Tissue Accretion Rates Of High-Lean Growth Gilts Fed From 80 To 160 Lb (1993), K G. Friesen, L J. Kats, B J. Kerr, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, John A. Unruh, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

One-hundred eight high-lean growth gilts (75.5 lb initial weight) were used to determine the dietary lysine requirement to maximize growth performance and protein accretion from 80 to 160 lb. The experiment was designed as a randomized complete block, with initial weight serving as the blocking factor. Six dietary treatments were included, ranging from .54 to 1.04% digestible lysine (.69 to 1.25% total dietary lysine). Pigs were housed in pens of three, with six replicate pens/treatment. Pig weights and feed disappearance were collected weekly to calculate average daily gain (ADG), average daily feed intake ADFI, and feed efficiency (F/G). Initially, six …

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The Relationship Among Live Hog, Carcass, And Wholesale Cut Prices (1993), G L. Keeler, Michael R. Langemeier, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1993

The Relationship Among Live Hog, Carcass, And Wholesale Cut Prices (1993), G L. Keeler, Michael R. Langemeier, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

This study examined the relationship between live and carcass prices and the seasonality of live, carcass, and wholesale cut prices. Results using Omaha live prices suggested a unidirectional relationship between live and carcass prices, with farm prices leading carcass prices by 3 weeks. In contrast, the results generated using live prices from the St. Joseph terminal market suggested a bidirectional relationship. Live and carcass prices from 1987 to 1992 were found to be highly correlated. The average monthly price spread between the Omaha live price and the USDA carcass price ranged from $14.02 to $23.18 cwt, with an average spread …

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Effects Of Nursery Diets On Growth Of Pigs To Market Weight (1993), Joe D. Hancock, C G. Mills, David A. Nichols, Robert H. Hines Jan 1993

Effects Of Nursery Diets On Growth Of Pigs To Market Weight (1993), Joe D. Hancock, C G. Mills, David A. Nichols, Robert H. Hines

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the effects of nutrient concentrations and complexity of ingredients used in nursery diets on growth performance to market weight. In Experiment 1, nursery regimens were: 1) simple ingredients/low lysine (corn-soybean meal-dried whey-based diet with 1.25% lysine for d 0 to 23 and a corn-soybean meal-based diet with 1.1% lysine for d 23 to 37) and 2) complex ingredients/ high-lysine (blood products, lactose, and other specialty ingredients with 1.5% lysine for d 0 to 9 and 1.25% lysine for d 9 to 23, and a corn-soybean meal-based diet with 1.1% lysine for d 23 to …

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Effect Of Spray-Dried Blood Meal In The Phase Iii Diet (1993), L J. Kats, K G. Friesen, B T. Richert, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach, Steven S. Dritz Jan 1993

Effect Of Spray-Dried Blood Meal In The Phase Iii Diet (1993), L J. Kats, K G. Friesen, B T. Richert, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 216 weanling pigs was used to evaluate the use of spray-dried blood meal (SDBM) in the phase III diet for pigs weighing approximately 25 pounds. At weaning, pigs (initially 11.6 lb and 21 d of age) were allotted by weight, gender, and ancestry to the dietary treatments. There were six pigs per pen with six replications per treatment. Pigs were started on a common phase I diet containing 20% dried whey, 7.5% spray-dried porcine plasma, and 1.75% spray-dried blood meal. This diet was formulated to contain 1.5% lysine and .44% methionine. On d 7 postweaning all pigs …

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Evaluation Of Carcass Merit Pricing By Pork Packers (1993), Ted C. Schroeder Jan 1993

Evaluation Of Carcass Merit Pricing By Pork Packers (1993), Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

Live hog prices must reflect end-use value to convey market information from consumers to producers. Precise end-use value is excessively costly to trace for each carcass given current technology. Pricing structures must be based upon carcass merit information that is correlated with end-use value. This study uses pork carcass cut out data from 794 carcasses to estimate hog carcass values based upon carcass characteristics. Carcass values varied by nearly $20/cwt based on quality differences alone. In addition, considerable differences were present in pricing schedules of different pork packers suggesting that hog producers need to shop around when deciding to which …

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Comparison Of Feed-Grade Antibiotics In Starter Diets Containing Spray-Dried Blood Products (1993), K Q. Owen, Steven S. Dritz, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1993

Comparison Of Feed-Grade Antibiotics In Starter Diets Containing Spray-Dried Blood Products (1993), K Q. Owen, Steven S. Dritz, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

A total of 240 pigs (initially 11.6 lb and 19 d of age) was used to compare four different feed-grade antibiotics or antibiotic combinations in phase I (d 0 to 14 postweaning) and phase II (d 14 to 28 postweaning) starter pig diets. Apramycin and carbadox were compared in the phase I diet. Combinations of tylosin/sulfamethazine and neomycin sulfate/oxytetracycline were compared in the phase II diet. No differences occurred in pig performance for the phase I and phase II periods between the feed-grade antibiotics compared in this growth assay. Therefore, determination of appropriate feed-grade antibiotic inclusion will depend on 1) …

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Pellet Quality Affects Growth Performance Of Nursery And Finishing Pigs (1993), C R. Stark, Robert H. Hines, Keith C. Behnke, Joe D. Hancock Jan 1993

Pellet Quality Affects Growth Performance Of Nursery And Finishing Pigs (1993), C R. Stark, Robert H. Hines, Keith C. Behnke, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the effects of diet form (meal vs pellet) and amount of fines in pelleted feed on growth performance of nursery and finishing pigs. One hundred twenty-six weanling pigs, with an average initial body wt of 12.5 lb, were used in the 35-d nursery experiment. The same phase I diet (pelleted) was fed to all pigs for 7 d, then the pigs were switched to phase II diet treatments (d 7 to 35 postweaning). Treatments were the same phase II diet fed as: 1) meal; 2) screened pellets (fines removed); and 3) the screened pellets …

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Comparison Of Carbohydrate Sources For The Early-Weaned Pig (1993), C A. Kerr, Steven S. Dritz, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach Jan 1993

Comparison Of Carbohydrate Sources For The Early-Weaned Pig (1993), C A. Kerr, Steven S. Dritz, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

A total of 180 weanling pigs (initially 11.7 lb and 21 d of age) was used in a 35 d growth assay to compare various carbohydrate sources from d 0 to 14 postweaning in phase I. Pigs were allotted by weight and ancestry to one of five experimental diets with six pigs per pen and six replications per treatment. Pigs were fed one of five experimental diets from d 0 to 14 postweaning. The experimental carbohydrate sources compared were corn, oat flour, two modified potato starches, and lactose. All pigs were then fed a common phase II diet from d …

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