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Journal

Kansas Agricultural Experiment Station Research Reports

1993

Animal Sciences

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Articles 1 - 30 of 110

Full-Text Articles in Life Sciences

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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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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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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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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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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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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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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Do Dietary Buffers Improve Growth Performance Or Nutrient Digestibility Or Decrease Stomach Ulcers In Finishing Pigs? (1993), K J. Wondra, Robert H. Hines, Joe D. Hancock, Keith C. Behnke Jan 1993

Do Dietary Buffers Improve Growth Performance Or Nutrient Digestibility Or Decrease Stomach Ulcers In Finishing Pigs? (1993), K J. Wondra, Robert H. Hines, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

The effects of supplemental buffers in finely ground diets were determined in two experiments. In Exp. 1, 128 pigs (123 lb average initial body wt) were fed a cornsoybean meal-based diet (488 μm mean particle size for corn) for 66 d. Treatments were a control and 1, 2, or 3% added sodium bicarbonate (NaHCO3). Average daily gain, dressing percentage, and plasma urea N concentration decreased as the concentration of NaHCO3 in the diet was increased. However, the reduction in average daily gain occurred only at the 2 and 3% additions. Feed intake, feed/gain, backfat thickness, stomach ulceration score, stomach keratinization …

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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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Soybean Meal Is Necessary In Diets For Early-Weaned (12 D Of Age) Pigs (1993), K Q. Owen, Steven S. Dritz, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband Jan 1993

Soybean Meal Is Necessary In Diets For Early-Weaned (12 D Of Age) Pigs (1993), K Q. Owen, Steven S. Dritz, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A total of 192 pigs (initially 8.0 lb and 12 d of age) was used to determine the optimal soybean meal level to be included in starter diets for the 12-d-old weaned pig. The trial was a 28 d growth assay. Pigs were allotted by weight to six replicates of four treatments with six or 10 pigs per pen. From d 0 to 14 postweaning, pigs were fed a common diet or experimental diets containing 5, 10, and 15% soybean meal. These high nutrient dense diets were formulated to contain 1.7% lysine. All pigs were fed a common transition diet …

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Optimum Level Of Spray-Dried Porcine Plasma For Early-Weaned (10.5 D Of Age) Starter Pigs (1993), K Q. Owen, Steven S. Dritz, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1993

Optimum Level Of Spray-Dried Porcine Plasma For Early-Weaned (10.5 D Of Age) Starter Pigs (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 290 early-weaned pigs (initially 7.6 lb and 10.5 d of age) was used to evaluate various levels of spray-dried porcine plasma. Pigs were assigned to one of five experimental diets with either 5, 7.5, 10, 12.5, or 15% spray-dried porcine plasma replacing dried skim milk. Pigs were fed this diet for the first 14 days postweaning. Common diets were fed from d 14 to 42 postweaning in order to monitor subsequent performance. During the first phase (d 0 to 14 postweaning), linear improvements in average daily gain (ADG) and average daily feed intake (ADFI) occurred as the …

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Influence Of Interleukin-1 On Neutrophil Function And Resistance To Streptococcus Suis In Young Pigs (1993), Jishu N. Shi, M M. Chengappa, D S. Mcvey, Frank Blecha, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach Jan 1993

Influence Of Interleukin-1 On Neutrophil Function And Resistance To Streptococcus Suis In Young Pigs (1993), Jishu N. Shi, M M. Chengappa, D S. Mcvey, Frank Blecha, Robert D. Goodband, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Nonspecific immunity is usually lower in young pigs than adults. Consequently, enhancing the young pig's nonspecific immune capability may be beneficial for the health and performance of early-weaned pigs. Twenty, 9-d-old, crossbred pigs were allotted by litter and weight into two treatment groups: recombinant bovine interleukin- 1β (rBoIL-1β; 5 μg/kg, intramuscularly at 9 and 10 d of age)) or control. Pigs were weaned at 10 d of age and housed in an isolation facility with ad libitum access to water and a pelleted diet formulated to meet the nutrient requirements and provide maximum growth of early-weaned pigs. Blood samples were …

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Extrusion Of Sorghum Grain And Soybeans For Lactating Sows (1993), C G. Mills, Terry L. Gugle, Robert H. Hines, Joe D. Hancock Jan 1993

Extrusion Of Sorghum Grain And Soybeans For Lactating Sows (1993), C G. Mills, Terry L. Gugle, Robert H. Hines, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

One hundred-seventeen primiparous sows were used to determine the effects of extruded sorghum grain and soybeans in lactation diets on sow and litter performance. The sows were fed a sorghum-soybean-based diet with the sorghum and soybeans extruded either singly or together. Treatments were: 1) ground sorghum-soybean meal (SBM)-soy oil-based control; 2) extruded sorghum-SBM-soy oil; 3) ground sorghum-extruded soybeans; and 4) sorghum and extruded soybeans blended then extruded together (extruded blend). All diets were formulated to .80% lysine, .90% Ca, .80% P, and 1.47 Mcal ME/lb. Sows fed diets with extruded ingredients tended to wean more pigs with greater survivability and …

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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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Rate And Extent Of Losses From Top Spoilage In Alfalfa Silages Stored In Bunker Silos, D.L. Holthaus, D.R. Bonilla, L. Pfaff, D. Haverkamp, B.S. Dalke, R.N. Sonon, K. Budiongo, K.K. Bolsen, Matthew A. Young Jan 1993

Rate And Extent Of Losses From Top Spoilage In Alfalfa Silages Stored In Bunker Silos, D.L. Holthaus, D.R. Bonilla, L. Pfaff, D. Haverkamp, B.S. Dalke, R.N. Sonon, K. Budiongo, K.K. Bolsen, Matthew A. Young

Kansas Agricultural Experiment Station Research Reports

Alfalfa silages were made in pilot- and farm-scale silos, and five sealing treatments were compared. After 90 days, sealing dramatically reduced DM losses at the 5 and 10 in. depths in the farm silos and at the 0 to 12, 12 to 24, and 24 to 36 in. depths in the pilot silos. Extending the storage period to 180 days in pilot silos had no effect on DM losses for sealed or delay sealed silages, but DM losses for unsealed silages continued to increase at all three depths. Placing a roof over the unsealed, farm-scale silo increased the silage DM …

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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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Preservation Of Alfalfa Hay With A Microbial Inoculant, R.K. Taylor, W.C. Mahanna, Dale A. Blasi, Thomas Mark Maxwell, James P. Shroyer Jan 1993

Preservation Of Alfalfa Hay With A Microbial Inoculant, R.K. Taylor, W.C. Mahanna, Dale A. Blasi, Thomas Mark Maxwell, James P. Shroyer

Kansas Agricultural Experiment Station Research Reports

Eleven large, round, alfalfa bales were treated with Pioneer® Brand 1155 Alfalfa Hay Inoculant and nine bales were untreated. The initial baling moistures were 14.1% (low) or 17.6% (medium). No significant differences were found in dry matter recovery or changes in acid detergent fiber, neutral detergent fiber, and acid detergent insoluble nitrogen levels during the 2-month storage period. Average temperature was highest in the medium moisture bales, but was not high enough to cause heat damage. The microbial inoculant did not improve preservation or quality of the alfalfa hay at the baling moistures used in this study.

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Summer Annual Forages In South Central Kansas, William F. Heer, Dale A. Blasi, Dale L. Fjell Jan 1993

Summer Annual Forages In South Central Kansas, William F. Heer, Dale A. Blasi, Dale L. Fjell

Kansas Agricultural Experiment Station Research Reports

Six summer annuals and three forage sorghums were evaluated for forage yield and quality under south central Kansas dryland conditions. When cut in the late boot to early heading stage, all forage types (millet, sudan, sorghum-sudan, and forage sorghum) produced similar dry matter yields, with no consistent differences in nutritional quality. Allowing the forages to reach maturity prior to cutting increased total yield per acre but decreased the crude protein content. The millets were higher in protein at maturity than the sudans or forage sorghums. However, the forage sorghums produced the most mature forage, whereas common sudan yielded the least. …

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Value-Added Beef Processing: Increasing The Value Of Beef Shanks Using Baadertm Processing Technology, R.E. Campbell, Melvin C. Hunt Jan 1993

Value-Added Beef Processing: Increasing The Value Of Beef Shanks Using Baadertm Processing Technology, R.E. Campbell, Melvin C. Hunt

Kansas Agricultural Experiment Station Research Reports

Using a BaaderTM desinewing machine on beef shanks can increase the value of a beef carcass by $1 to $5 by improving palatability and texture and reducing fat. By varying belt pressure and drum opening size and passing shanks twice through the desinewer, we obtained commercially acceptable yields. Maximum lean yield was 93% of the shank using 5 mm drum holes for both passes. With 3 mm drum holes, very lean produced on the first pass. Using desinewed lean and flaking the sinew with an Urschel Commitrol®, we produced low-fat (10%) ground beef patties. Patties from desinewed lean alone and/or …

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Evaluation Of 24 Corn Hybrids For Silage Agronomic Performance Under Both Irrigated And Dryland Conditions, R.N. Sonon, B.S. Dalke, D.L. Holthaus, D.R. Bonilla, L. Pfaff, John E. Boyer, B.E. Brent, K.K. Bolsen, Matthew A. Young Jan 1993

Evaluation Of 24 Corn Hybrids For Silage Agronomic Performance Under Both Irrigated And Dryland Conditions, R.N. Sonon, B.S. Dalke, D.L. Holthaus, D.R. Bonilla, L. Pfaff, John E. Boyer, B.E. Brent, K.K. Bolsen, Matthew A. Young

Kansas Agricultural Experiment Station Research Reports

In 1992, 24 corn hybrids were grown under both irrigated and dryland conditions and were harvested at 90% of the kernel milk line. Growing condition and hybrid significantly affected plant height and the number of days to the tasseling and silking stages. Most dryland hybrids had higher dry matter (DM) contents than irrigated hybrids, but all 24 hybrids had higher grain yields under irrigation. Growing condition and hybrid also significantly affected whole-plant DM and stover yields and percentages of cob and stover. The grain portion made the greatest contribution to the higher whole-plant silage yields for the irrigated hybrids compared …

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Influence Of Frequency Of Supplementation And Protein Concentration In Supplements On Digestion Characteristics Of Beef Steers Offered Wheat Straw, J.L. Beaty, R.C. Cochran, B.A. Lintzenich, E.S. Vanzant, J.L. Morrill, Robert T. Brandt, D.E. Johnson Jan 1993

Influence Of Frequency Of Supplementation And Protein Concentration In Supplements On Digestion Characteristics Of Beef Steers Offered Wheat Straw, J.L. Beaty, R.C. Cochran, B.A. Lintzenich, E.S. Vanzant, J.L. Morrill, Robert T. Brandt, D.E. Johnson

Kansas Agricultural Experiment Station Research Reports

Eight ruminally cannulated steers were used to determine digestion characteristics of soybean meal/sorghum grain supplements containing 12%, 20%, 30%, or 39% crude protein (CP) fed either daily (7X) or three times weekly (3X). The basal forage was wheat straw. Weekly supplement intake was the same per week (30.5 lb) for both frequency groups. The effect of feeding supplements differing in protein concentration on wheat straw intake and dry matter digestibility (DMD) did not depend on frequency of supplementation. Increased frequency of supplementation resulted in greater intake of straw, although DMD was slightly depressed. Increasing protein concentration in the supplements was …

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Whole-Plant Corn, Forage Sorghum, And Grain Sorghum Silages For Growing Cattle, B.S. Dalke, R.N. Sonon, S.M. Gramlich, K.K. Bolsen Jan 1993

Whole-Plant Corn, Forage Sorghum, And Grain Sorghum Silages For Growing Cattle, B.S. Dalke, R.N. Sonon, S.M. Gramlich, K.K. Bolsen

Kansas Agricultural Experiment Station Research Reports

Agronomic and cattle performance traits were measured for eight silages produced in 1991. The silages were: irrigated Pioneer 3377 corn; dryland (early-planted) DeKalb 535 corn; irrigated and dryland DeKalb DK 42Y grain sorghum; and dryland forage sorghums Cargill 200F, Pioneer 947, Northrup King (NK) 300, and Funk's 102F. The irrigated corn and NK 300 and Funk's 102F forage sorghums had the highest whole-plant dry matter (DM) yields per acre; early-planted corn had the lowest yield. The dryland grain sorghum had the highest grain yield and the early-planted corn, the lowest. Average daily gains (ADG) were excellent for steers fed each …

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Effect Of Level Of Supplemental Alfalfa And Its Method Of Processing On Intake And Utilization Of Wheat Straw, B.A. Lintzenich, R.C. Cochran, E.S. Vanzant, J.L. Beaty, G. St. Jean, Robert T. Brandt, Tiruvoor G. Nagaraja Jan 1993

Effect Of Level Of Supplemental Alfalfa And Its Method Of Processing On Intake And Utilization Of Wheat Straw, B.A. Lintzenich, R.C. Cochran, E.S. Vanzant, J.L. Beaty, G. St. Jean, Robert T. Brandt, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Sixteen ruminally fistulated steers were used to study the effects of supplemental alfalfa level (.25 or 1.0% body weight [BW]) and method of processing (hay or pellets) on wheat straw utilization. Response to increased level of supplemental alfalfa did not dependent on method of processing (longstem vs pelleted) for the quality of alfalfa (22.7% CP) used in this trial. Increasing the level of alfalfa from .25 to 1.0% of BW reduced (P#.02) straw intake and diet digestibility, but increased (P<.002) digestible dry matter intake by steers. With high quality hay, ground and pelleted alfalfa elicits the same type of response as longstem alfalfa.

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Growth And Reproductive Characteristics In Heifers Fed Endophyte-Infected Tall Fescue And Oxytetracycline, C.W. Peters, F.K. Brazle, L.R. Corah Jan 1993

Growth And Reproductive Characteristics In Heifers Fed Endophyte-Infected Tall Fescue And Oxytetracycline, C.W. Peters, F.K. Brazle, L.R. Corah

Kansas Agricultural Experiment Station Research Reports

Heifers developed on high-endophyte, tall fescue gained half as much weight (56 vs 117 lb; P<.01) and had a lower 35-day pregnancy rate (15 vs 58%; P<.01) compared to heifers fed low endophyte, tall fescue. Based on progesterone serum concentrations and visual determination of estrus, the proportion of heifers that had attained puberty by the start of the breeding season tended (P=.11) to be greater when fed oxytetracycline (55 vs 68%).

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Endophyte-Infected, Tall Fescue Hay Utilization By Exercised, Yearling Horses, J.S. Pendergraft, M.J. Arns, R.H. Raub, K.K. Bolsen, F.K. Brazle Jan 1993

Endophyte-Infected, Tall Fescue Hay Utilization By Exercised, Yearling Horses, J.S. Pendergraft, M.J. Arns, R.H. Raub, K.K. Bolsen, F.K. Brazle

Kansas Agricultural Experiment Station Research Reports

Fescue toxicity causes substantial production losses in sheep, cattle, and horses. These losses are attributed to an endophyte, Acremonium coenophialum. However, our results indicate that Quarter horse yearlings can be fed endophyte-infected tall fescue hay for at least 106 days with no detrimental effects on either growth or exercise performance. However, these findings have not been substantiated in other classes of horses or in horses consuming endophyte-infected fescue for longer durations.

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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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Relationship Between Expected Progeny Differences (Epd) And Performance Of Angus And Simmental Bulls In Central Bull Tests, D.D. Simms Jan 1993

Relationship Between Expected Progeny Differences (Epd) And Performance Of Angus And Simmental Bulls In Central Bull Tests, D.D. Simms

Kansas Agricultural Experiment Station Research Reports

The performance of bulls (n = 656 for Angus and n = 1343 for Simmental) at the Beloit and Potwin bulls tests from 1989 to 1992 were compared to their expected progeny differences (EPDs). In general, correlations between on-test ADG and weaning and yearling EPD were low for both breeds. However, the correlations between actual yearling weight and yearling EPD was moderate for Angus. Differences in actual yearling weight were 2.80 and 1.71 pounds (for Angus and Simmental, respectively) for each pound of difference in yearling weight EPD, which is close to the 2.0 pound difference expected. Thus, although the …

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Effect Of Diet Energy Content And Level Of Restriction On Performance, Nutrient Digestibility, And Puberty In Replacement Beef Heifers, Robert T. Brandt Jr., Ronald V. Pope, Jeffrey S. Stevenson Jan 1993

Effect Of Diet Energy Content And Level Of Restriction On Performance, Nutrient Digestibility, And Puberty In Replacement Beef Heifers, Robert T. Brandt Jr., Ronald V. Pope, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Eighty Angus x Hereford crossbred weanling heifers (548 lb) were used in a 2x2 factorial experiment to evaluate dietary energy concentration (NEg .51 vs .61 Mcal/lb) and intake restriction (to produce 1.25 and 2.0 lb/d gain). Intake of the diets (corn - corn silage based; 14% CP) was adjusted every 2 weeks. Steer counterparts to the heifers were used in a 2x3 factorially arranged digestion experiment using the same treatments with an additional ad libitum intake level. There were no interactions between energy content and level of restriction. Heifers fed the higher energy diet maintained equal daily gain on 9.7% …

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Protein Supplementation Of Ammoniated Wheat Straw: Effect On Intake And Digestion In Beef Steers, G.D. Fike, D.D. Simms, R.C. Cochran, Robert T. Brandt Jr., E.S. Vanzant, Gerry L. Kuhl Jan 1993

Protein Supplementation Of Ammoniated Wheat Straw: Effect On Intake And Digestion In Beef Steers, G.D. Fike, D.D. Simms, R.C. Cochran, Robert T. Brandt Jr., E.S. Vanzant, Gerry L. Kuhl

Kansas Agricultural Experiment Station Research Reports

Sixteen ruminally fistulated steers (avg wt. = 998 lb) were used in a 30-day conventional digestion trial to examine the effects of protein supplementation on intake and digestion of ammoniated wheat straw. Steers were assigned to one of four protein supplementation programs: 1) Control (C) - no supplement, 2) Low Protein (LP) - 4.5 lb of a 10% crude protein (CP) supplement, 3) Medium Protein (MP) - 4.5 lb of a 20% CP supplement, or 4) High Protein (HP) - 4.5 of a lb 30% CP supplement. Supplements were mixtures of milo and soybean meal. Supplementation increased (P<.05) dry matter intake, tended (P=.09) to increase intake of digestible neutral detergent fiber (NDF), and increased (P<.05) intake of forage dry matter. Dry matter digestibility was higher (P<.05) for HP steers than C and LP steers, but no difference was detected between MP, and HP steers. Steers on HP, MP, and C treatments exhibited higher NDF digestibility than LP steers. Rumen pH, total volatile fatty acid concentration, and acetate to propionate ratio were unaffected by supplementation.

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