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Other Animal Sciences

Kansas State University Libraries

1995

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Articles 1 - 30 of 77

Full-Text Articles in Animal Sciences

In Vitro Branched Chain Amino Acid Oxidation By Porcine Mammary Tissue (1995), B T. Richert, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen Jan 1995

In Vitro Branched Chain Amino Acid Oxidation By Porcine Mammary Tissue (1995), B T. Richert, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Mammary secretory tissue from six (three each of parity 1 and 2) lactating sows (d 10 to 17 of lactation) was obtained via biopsy for in vitro incubation to determine CO2 production fr01TI individual branched chain amino acids. Carbon dioxide production levels as percentages of the 14C-labeled amino acid metabolized by the mammary tissue were 2.57, 1.86, and 4.07% for isoleucine, leucine, and valine, respectively (P<.03). These results indicate that, in the lactating sow mammary gland, valine has the greatest oxidation rate of the branched chain amino acids.; Swine Day, Manhattan, KS, November 16, 1995

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Maturation Of The Gilt's Uterus Before Puberty: Response To Progesterone At Different Ages (1995), P G. Groothuis, R M. Blair, Duane L. Davis Jan 1995

Maturation Of The Gilt's Uterus Before Puberty: Response To Progesterone At Different Ages (1995), P G. Groothuis, R M. Blair, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

We determined the age at which progesterone induced certain responses in the gilt's uterus. The prepubertal maturation permitting each response is being studied currently with the intent of using the information to develop methods to improve litter size in pigs, perhaps by identifying markers for uterine function that could be used before gilts enter the breeding herd.; Swine Day, Manhattan, KS, November 16, 1995

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Roundup 1995 Jan 1995

Roundup 1995

Kansas Agricultural Experiment Station Research Reports

Roundup is the major beef cattle education and outreach event sponsored by the Agricultural Research Center-Hays. The purpose is to communicate timely, applicable research information to producers and extension personnel. The research program of the Agricultural Research Center-Hays is dedicated to serving the people of Kansas by developing new knowledge and technology to stabilize and sustain long-term production of food and fiber in a manner consistent with conservation of natural resources, protection of the environment, and assurance of food safety. Primary emphasis is on production efficiency through optimization of inputs in order to increase profit margins for producers in the …

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Dietary Lysine And Slaughter Weight Affect Growth Performance And Carcass Characteristics In Boars And Barrows (1995), M M. Rantanen, Robert H. Hines, I H. Kim, K G. Friesen, Joe D. Hancock Jan 1995

Dietary Lysine And Slaughter Weight Affect Growth Performance And Carcass Characteristics In Boars And Barrows (1995), M M. Rantanen, Robert H. Hines, I H. Kim, K G. Friesen, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

During the growing and finishing period, the boars ate less, had better F/G, and were less fat than barrows. A high plane of nutrition (high vs moderate lysine concentrations for the growing-finishing phases) and decreasing slaughter weight from 260 to 220 lb also improved efficiency of gain and carcass leanness. However, many notable interactions occurred among the gender x lysine x slaughter weight treatments. Also, year (rotational-cross of average health status and lean growth potential vs a terminal-cross of high lean growth potential after repopulation of the farm) had pronounced effects on growth performance and carcass merits such that the …

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Estimated Budgets For Separate-Site Swine Production (1995), Kevin C. Dhuyvetter, Michael D. Tokach, R D. Jones Jan 1995

Estimated Budgets For Separate-Site Swine Production (1995), Kevin C. Dhuyvetter, Michael D. Tokach, R D. Jones

Kansas Agricultural Experiment Station Research Reports

Budgets were developed to help Kansas swine producers analyze the economics of separate-site production. Return on investment (ROI) was estimated at 9.5%in each of the three production phases. Returns over total costs were very sensitive to transfer price between phases (weaned pig and feeder pig price) as well as production efficiencies and input costs.; Swine Day, Manhattan, KS, November 16, 1995

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A Comparison Of Risk And Return For Contract And Independent Hog Finishing (1995), J L. Parcell, Michael R. Langemeier Jan 1995

A Comparison Of Risk And Return For Contract And Independent Hog Finishing (1995), J L. Parcell, Michael R. Langemeier

Kansas Agricultural Experiment Station Research Reports

Risks associated with independent hog finishing have prompted producers to seek alternative production and marketing methods. A means of reducing risk has developed through contract hog finishing. Research results indicate that risk-neutral producers require contract base payments ranging from $11.25 to $14.00 per head. Strongly risk-averse producers require contract base payments ranging from $4.75 to $7.75 per head. The lower ends of the ranges are for a contract with performance incentives. The upper ends of the ranges are for a flat contract without performance incentives. Calculated required base payments are similar to those payments currently received by contract hog finishers.; …

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Display Life And Related Traits Of Low-Dose Irradiated, Boneless, Pork Chops (1995), S E. Luchsinger, Zepeda C.M. Garcia, Edgar Iv Chambers, M E. Hollingsworth, Melvin C. Hunt, James L. Marsden, Sally L. Stroda, Canas E. Rubio J, Curtis L. Kastner, W G. Kuecker, T Mata, Donald H. Kropf Jan 1995

Display Life And Related Traits Of Low-Dose Irradiated, Boneless, Pork Chops (1995), S E. Luchsinger, Zepeda C.M. Garcia, Edgar Iv Chambers, M E. Hollingsworth, Melvin C. Hunt, James L. Marsden, Sally L. Stroda, Canas E. Rubio J, Curtis L. Kastner, W G. Kuecker, T Mata, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

Irradiation and vacuum-packaging caused a more intense and stable red color in boneless pork chops. Irradiation up to 2.5 kGy increased cooked internal redness in chilled chops. Oxidative rancidity was greater in aerobic packaging than vacuum-packaging and in irradiated aerobic packaged chops than controls. Irradiation of vacuum-packaged boneless pork chops has promising potential for market acceptance.; Swine Day, Manhattan, KS, November 16, 1995

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Effects Of Feeder Design And Pelleting On Growth Performance And Water Use In Finishing Pigs (1995), M M. Rantanen, Robert H. Hines, I H. Kim, Joe D. Hancock Jan 1995

Effects Of Feeder Design And Pelleting On Growth Performance And Water Use In Finishing Pigs (1995), M M. Rantanen, Robert H. Hines, I H. Kim, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Pigs fed from wet-dry feeders had 4% greater ADG with 50% less water usage than those consuming feed from dry feeders. Pelleting diets improved F/G by 4% compared to meal diets. However, the benefits of pelleting were primarily when a dry feeder was used, with little evidence to support use of both pelleting and wet/dry feeders for finishing pigs.; Swine Day, Manhattan, KS, November 16, 1995

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Consumer Acceptance Of Low-Dose Irradiated, Boneless, Pork Chops (1995), S E. Luchsinger, Zepeda C.M. Garcia, Edgar Iv Chambers, M E. Hollingsworth, Melvin C. Hunt, James L. Marsden, Sally L. Stroda, Canas E. Rubio J, Curtis L. Kastner, W G. Kuecker, T Mata, Donald H. Kropf Jan 1995

Consumer Acceptance Of Low-Dose Irradiated, Boneless, Pork Chops (1995), S E. Luchsinger, Zepeda C.M. Garcia, Edgar Iv Chambers, M E. Hollingsworth, Melvin C. Hunt, James L. Marsden, Sally L. Stroda, Canas E. Rubio J, Curtis L. Kastner, W G. Kuecker, T Mata, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

Acceptance of irradiated, chilled, boneless, pork chops and nonirradiated controls by consumers was not different. Coupled with consumer concerns about food safety and well-documented improvement in consumer attitudes about irradiated foods, the potential for market acceptance is very promising.; Swine Day, Manhattan, KS, November 16, 1995

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The Effects Of Increasing Dietary Energy Density On Growing-Finishing Pig Growth Performance And Carcass Characteristics (1995), J W. Smith Ii, R M. Musser, W B. Nessmith Jr, J R. Bergstrom, J A. Loughmiller, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach Jan 1995

The Effects Of Increasing Dietary Energy Density On Growing-Finishing Pig Growth Performance And Carcass Characteristics (1995), J W. Smith Ii, R M. Musser, W B. Nessmith Jr, J R. Bergstrom, J A. Loughmiller, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Eighty crossbred gilts were used in a growth trial to evaluate the effects of increasing dietary energy density on growing-finishing pig growth performance and carcass characteristics. In this trial, adding fat to corn-soybean meal diets with a constant calorie: lysine ratio to increase the energy density during the growing phase (98 to 160 lb) improved feed efficiency with no influence on growth rate. However, increasing the energy content of the diet by adding fat had no benefit during the finishing phase (160 to 233 lb).; Swine Day, Manhattan, KS, November 16, 1995

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Particle Size (1,000 Vs 500 Um) Affects Nutritional Value Of Simple And Complex Diets For Weanling Pigs And Broiler Chicks (1995), I H. Kim, M R. Cabrera, Robert H. Hines, M M. Rantanen, Joe D. Hancock, Keith C. Behnke Jan 1995

Particle Size (1,000 Vs 500 Um) Affects Nutritional Value Of Simple And Complex Diets For Weanling Pigs And Broiler Chicks (1995), I H. Kim, M R. Cabrera, Robert H. Hines, M M. Rantanen, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

Nursery pigs fed complex diets had greater ADG than those fed simple diets, and as particle size was reduced, ADG and F/G tended to improve. There was a trend for reducing particle size to increase ADG more for pigs fed simple versus complex diets, but the response in efficiency of gain was of similar magnitude regardless of diet complexity. A second experiment was designed to determine if broiler chicks were an acceptable model for predicting the effects of feed processing procedures on nursery pigs. Chicks responded somewhat differently than pigs to the diet complexity x particle size treatments, with reduction …

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Effects Of Distillers Grains On Growth Performance In Nursery And Finishing Pigs (1995), B W. Senne, P S. Sorrell, I H. Kim, S L. Traylor, Robert H. Hines, Joe D. Hancock, Keith C. Behnke Jan 1995

Effects Of Distillers Grains On Growth Performance In Nursery And Finishing Pigs (1995), B W. Senne, P S. Sorrell, I H. Kim, S L. Traylor, Robert H. Hines, Joe D. Hancock, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

Rate and efficiency of gain were not affected by adding as much as 20% distillers dried grains in isocaloric diets for nursery pigs or 30% in isocaloric diets for finishing pigs. These results demonstrate that the previously suggested maximums of 5% distillers dried grains in nursery diets and 10% distillers dried grains in finishing diets are too conservative. Finally, because the 20% (nursery) and 30% (finishing) treatments were the greatest concentrations used in our experiments, additional growth assays are needed to determine the maximum limits for distillers dried grains in diets for pigs.; Swine Day, Manhattan, KS, November 16, 1995

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Sodium Sulfite And Extrusion Affect The Nutritional Value Of Soybean Products For Nursery Pigs (1995), L L. Burnham, I H. Kim, Robert H. Hines, Terry L. Gugle, Joe D. Hancock Jan 1995

Sodium Sulfite And Extrusion Affect The Nutritional Value Of Soybean Products For Nursery Pigs (1995), L L. Burnham, I H. Kim, Robert H. Hines, Terry L. Gugle, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Extruded soybeans improved rates and efficiencies of gain when fed to nursery pigs in place of soybean meal (SBM). Sodium sulfite (an extrusion aid) increased extruder throughput and improved d 13 to 35 and overall efficiency of growth in pigs fed extruded soybeans and unextruded SBM. Further research is needed to determine if greater sodium sulfite concentrations will continue to increase extruder throughput and to elucidate the mechanism for improved growth performance of pigs fed sodium sulfite with unextruded SBM.; Swine Day, Manhattan, KS, November 16, 1995

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The Effects Of Substituting Spray-Dried Whole Egg From Egg Grading Plants For Spray-Dried Plasma Protein In Phase I Diets (1995), W B. Nessmith Jr, J R. Bergstrom, K Q. Owen, B T. Richert, J W. Smith Ii, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 1995

The Effects Of Substituting Spray-Dried Whole Egg From Egg Grading Plants For Spray-Dried Plasma Protein In Phase I Diets (1995), W B. Nessmith Jr, J R. Bergstrom, K Q. Owen, B T. Richert, J W. Smith Ii, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A study was conducted to evaluate the effects of replacing spray-dried plasma protein with spray-dried whole egg from egg grading plants on starter pig performance. Up to 50% (3.5% of the diet) of spray-dried plasma protein can be replaced with spraydried whole egg (6% of the diet) without influencing performance of starter pigs.; Swine Day, Manhattan, KS, November 16, 1995

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Effects Of Various Fractions Of Spray-Dried Plasma Protein On Performance Of Early-Weaned Pigs (1995), K Q. Owen, K G. Friesen, B T. Richert, J W. Smith Ii, L E. Russell, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach Jan 1995

Effects Of Various Fractions Of Spray-Dried Plasma Protein On Performance Of Early-Weaned Pigs (1995), K Q. Owen, K G. Friesen, B T. Richert, J W. Smith Ii, L E. Russell, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the individual protein fraction (IgG, low molecular weight peptides and albumin) contained in spray-dried plasma protein responsible for stimulating feed intake. In Exp. 1, pigs (21 d of age) fed a diet containing the IgG protein fraction had similar performance to pigs fed a plasma protein diet. In Exp. 2, two fractions of spray-dried porcine plasma, IgG and albumin, were evaluated with pigs (10 d of age). Pigs fed either fraction had performance similar to pigs fed plasma protein.; Swine Day, Manhattan, KS, November 16, 1995

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The Effects Of Dietary Mineral Regimen On Starter Pig Growth Performance And Blood And Immune Parameters (1995), J W. Smith Ii, J D. Arthington, Frank Blecha, B T. Richert, K Q. Owen, J R. Bergstrom, W B. Nessmith Jr, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen Jan 1995

The Effects Of Dietary Mineral Regimen On Starter Pig Growth Performance And Blood And Immune Parameters (1995), J W. Smith Ii, J D. Arthington, Frank Blecha, B T. Richert, K Q. Owen, J R. Bergstrom, W B. Nessmith Jr, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

Two hundred sixty-six weanling pigs (initially 12.461b and 21 d of age) were used in a 34-growth, immune status, blood parameters, and liver mineral status.. Pigs were fed either a control diet, 3,000 ppm zinc (Zn) in phase I and 2,000 ppm Zn in phase II and III, 250 ppm copper during the entire trial, or a combination of these three diets. These results support our current recommendations of adding zinc oxide in diets of pigs weighing up to 25 lb and copper sulfate in diets fed to pigs from 25 to 50 lb.; Swine Day, Manhattan, KS, November 16, …

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Determining The Optimal Threonine:Lysine Ratio In Starter Diets For The Segregated Early-Weaned Pig (1995), J R. Bergstrom, K Q. Owen, B T. Richert, W B. Nessmith Jr, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 1995

Determining The Optimal Threonine:Lysine Ratio In Starter Diets For The Segregated Early-Weaned Pig (1995), J R. Bergstrom, K Q. Owen, B T. Richert, W B. Nessmith Jr, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A 35-day growth trial was conducted to determine the threonine: lysine ratio necessary to optimize growth performance of the segregated early-weaned (SEW) pig. Twelve experimental diets included two levels of lysine (1.15% and 1.5% digestible lysine) and six digestible threonine:lysine ratios (50, 55, 60, 65, 70, and 75%) in a 2 x 6 factorial arrangement. Growth performance was improved by feeding 1.5% digestible lysine, rather than 1. 15% digestible lysine. However, growth performance was not improved by increasing dietary threonine. These data indicate that the threonine requirement is no more than 50% of digestible lysine.; Swine Day, Manhattan, KS, November …

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Interactions Among Lactose, Spray-Dried Animal Plasma, And Soybean Meal Levels May Affect Segregated Early-Weaned Pigs (1995), W B. Nessmith Jr, J R. Bergstrom, J A. Loughmiller, R E. Musser, K Q. Owen, J W. Smith Ii, B T. Richert, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 1995

Interactions Among Lactose, Spray-Dried Animal Plasma, And Soybean Meal Levels May Affect Segregated Early-Weaned Pigs (1995), W B. Nessmith Jr, J R. Bergstrom, J A. Loughmiller, R E. Musser, K Q. Owen, J W. Smith Ii, B T. Richert, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Pigs weaned in a segregated early weaning (SEW) environment achieved maximum performance when fed a sequence of diets containing a gradual decrease in spray-dried animal plasma. Furthermore, pigs weaned at approximately 19 days responded positively to 20% soybean meal. Increased levels of lactose enhanced the increases in performance from soybean meal.; Swine Day, Manhattan, KS, November 16, 1995

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Combinations Of Select Menhaden Fish Meal And Spray-Dried Plasma Protein In The Transition Diet (11 To 15 Lb) For The Early-Weaned Pig (1995), J R. Bergstrom, K Q. Owen, W B. Nessmith Jr, B T. Richert, J W. Smith Ii, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 1995

Combinations Of Select Menhaden Fish Meal And Spray-Dried Plasma Protein In The Transition Diet (11 To 15 Lb) For The Early-Weaned Pig (1995), J R. Bergstrom, K Q. Owen, W B. Nessmith Jr, B T. Richert, J W. Smith Ii, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Early-weaned pigs (weaned at 7 to 14 d of age) that are managed in a conventional, one-site production system require a more complex diet in the transition phase (11 to 15 lb) than early-weaned pigs that are managed in a segregated early weaning (SEW), multiple-site, production system.; Swine Day, Manhattan, KS, November 16, 1995

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Selection Response And Genetic Parameter Estimation For Feed Intake, Gain, And Feed Conversion (1995), J.B. Jr. Glaze, R.R. Schalles Jan 1995

Selection Response And Genetic Parameter Estimation For Feed Intake, Gain, And Feed Conversion (1995), J.B. Jr. Glaze, R.R. Schalles

Kansas Agricultural Experiment Station Research Reports

Performance records of 1459 Polled Hereford cattle born from 1967 through 1979 were analyzed to estimate genetic parameters and the direct and correlated responses that were due to selection for feed conversion. Heritabilities were .24 for intake, .25 for gain, and .14 for feed conversion. The genetic correlation between average daily gain and feed conversion was -.82; correlation between average daily gain and feed intake was .42. Faster-gaining cattle have greater feed intakes and are more efficient. Feed conversion was improved by direct selection. However, it is more economically feasible for breeders to improve feed conversion by selecting for faster …

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Breed And Management Comparisons And Genetic Parameters For Carcass Traits (1995), K.M. Andries, R.R. Schalles, D.E. Franke, Michael E. Dikeman Jan 1995

Breed And Management Comparisons And Genetic Parameters For Carcass Traits (1995), K.M. Andries, R.R. Schalles, D.E. Franke, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Carcass data from 5 years of a long-term, rotational , crossbreeding project were used to calculate heritabilities, genetic and phenotypic correlations , and management effects and to compare breeds for marbling, ribeye area, and hot carcass weight. Angus, Brahman, Charolais, Hereford, Polled Hereford, Gelbvieh, and Simmental breeds were involved. Sixty percent of the steer calves were fed as calves and 40% as yearlings. Heritabilities were .40 for marbling, .46 for ribeye area, and .51 for carcass weight. Genetic and phenotypic correlations were high between carcass weight and ribeye area but low between marbling and the other traits. Steers fed as …

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Pregnancy Rates In Mga-Prostaglandin Synchronized Heifers Bred At Estrus Or Inseminated At Fixed Times (1995), J.M. Smith, L.R. Corah, G.C. Lamb, A.R. Spell Jan 1995

Pregnancy Rates In Mga-Prostaglandin Synchronized Heifers Bred At Estrus Or Inseminated At Fixed Times (1995), J.M. Smith, L.R. Corah, G.C. Lamb, A.R. Spell

Kansas Agricultural Experiment Station Research Reports

The objective of this project was to study the effects on pregnancy rates of inseminating estrus-synchronize d heifers either at observed estrus or at a fixed time. In April, 1994, 574 yearling crossbred heifers, located on six Kansas ranches, were inseminated to achieve this objective. Her d size ranged from 38 to 293 head. The heifers were synchronized with the MGA-prostaglandin (PGF) system. Heifers were either inseminated 12 hr after the onset of estrus or, if not showing estrus, 72 hr after PGF. Pregnancy rates of 491 heifers bred on estrus averaged 56.6% (39.2 to 80.4%). Pregnancy rates for the …

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Influence Of Increasing Proportion Of Supplemental Nitrogen From Urea On Intake And Fermentation Characteristics In Beef Steers Consuming Low-Quality, Tallgrass-Prairie Forage (1995), H.H. Köster, R.C. Cochran, E.S. Vanzant, K.K. Kreikemeier, G. St Jean, Evan C. Titgemeyer, Tiruvoor G. Nagaraja Jan 1995

Influence Of Increasing Proportion Of Supplemental Nitrogen From Urea On Intake And Fermentation Characteristics In Beef Steers Consuming Low-Quality, Tallgrass-Prairie Forage (1995), H.H. Köster, R.C. Cochran, E.S. Vanzant, K.K. Kreikemeier, G. St Jean, Evan C. Titgemeyer, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Five ruminally and duodenally fistulated Angus x Hereford steers were used to determine intake and fermentation responses associated with increasing the proportion of supplemental degradable intake protein (DIP) provided by urea. Steers had free access to a dormant, tallgrass-prairie forage. The supplemental DIP was provided by sodium caseinate and (or) urea , at a level that was determined previously to optimize use of a similar forage. Supplemental DIP was balanced with corn starch to provide a final supplement of 40% crude protein. Percentages of DIP from urea were: 0, 25, 50, 75, and 100%. Supplements were given intraruminally. Increasing the …

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The Effect Of Dietary Zinc Level And Source On Yearling Bull Growth And Fertility (1995), J.D. Arthington, K.R. Johnson, L.R. Corah, C.L. Willms, D.A. Hill Jan 1995

The Effect Of Dietary Zinc Level And Source On Yearling Bull Growth And Fertility (1995), J.D. Arthington, K.R. Johnson, L.R. Corah, C.L. Willms, D.A. Hill

Kansas Agricultural Experiment Station Research Reports

To study the effect of dietary zinc level and source on bull growth and fertility, 325 yearling Angus bulls were allotted by weight into six pens (three pens of heavy and three pens of lightweight bulls). The three supplemental zinc (Zn) treatments were 1) 40 ppm inorganic Zn all supplied by Zn sulfate (ZnI); 2) 40 ppm Zn with 1/3 supplied by Zn proteinate and 2/3 supplied by Zn sulfate (ZnPI); and 3) 60 ppm ZnI all supplied by Zn sulfate (ZnHi). Initial and final liver biopsies (10 per pen) were collected and analyzed for zinc concentration. Individual weights and …

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Effects Of Grazing System And Stocking Rate On Cow-Calf Performance In The Flint Hills (1995), R.C. Cochran, D.E. Johnson, K. C. Olson, David C. Hartnett, Clenton E. Owensby Jan 1995

Effects Of Grazing System And Stocking Rate On Cow-Calf Performance In The Flint Hills (1995), R.C. Cochran, D.E. Johnson, K. C. Olson, David C. Hartnett, Clenton E. Owensby

Kansas Agricultural Experiment Station Research Reports

A 6-year study was designed to measure the influences of stocking rate and grazing system on performance of cow-calf pairs grazing tallgrass prairie. This paper summarizes the initial 3 years. Late-season rest-rotation was compared to continuous grazing over low, moderate, and high stocking rates. No differences (P>.10) were observed in body weight of cows or calves as a result of grazing system or stocking rate. However, calf weaning weight tended (P=.20) to be greater with continuous grazing than with late season rest-rotation. Cow body condition score was unaffected (P>.10) by stocking rate or grazing system. Conception rates were …

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The Effect Of Implants On Gain Of Heifers Grazing Native Grass (1995), F.K. Brazle, D.L. Cook Jan 1995

The Effect Of Implants On Gain Of Heifers Grazing Native Grass (1995), F.K. Brazle, D.L. Cook

Kansas Agricultural Experiment Station Research Reports

Three hundred-ninety crossbred heifers were allotted randomly to one of three implant treatments: 1) Implus- H®, 2) Synovex-H®, and 3) Ralgro®. The heifers grazed native grass pastures for 122 days, stocked at 4 acres per head. The heifers receiving the Implus-H tended to gain faster (P<.12) than the Ralgro heifers. No difference in gain occurred between the Implus-H and Synovex-H heifers.

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Effects Of Grazing System And Use Of A Pasture-Phase Implant On Grazing And Finishing Performance Of Steers (1995), Robert T. Brandt Jr., C.T. Milton, Clenton E. Owensby Jan 1995

Effects Of Grazing System And Use Of A Pasture-Phase Implant On Grazing And Finishing Performance Of Steers (1995), Robert T. Brandt Jr., C.T. Milton, Clenton E. Owensby

Kansas Agricultural Experiment Station Research Reports

Results are presented from the first year of a 2-year study to evaluate the effects of grazing system (intensive-early stocking or IES vs season-long grazing or SLG) with or without a pasture-phase implant (Synovex-S®) on grazing and subsequent finishing performance. Compared to a SLG system, IES resulted in faster rate of gain on pasture and more beef produced per acre, although SLG resulted in greater total pasture gain per animal. Implanting improved rate of gain and increased beef per acre, particularly for IES steers. In the feedlot, IES steers gained weight faster and more efficiently than SLG steers. However, SLG …

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Radiometric Measurement Of Forage Quantity (1995), R.C. Cochran, G. Towne, K. C. Olson Jan 1995

Radiometric Measurement Of Forage Quantity (1995), R.C. Cochran, G. Towne, K. C. Olson

Kansas Agricultural Experiment Station Research Reports

A 16-band multispectral radiometer (MSR) was used to measure the amount of forage biomass present on several dates in native tallgrass prairie pastures during the 1992 to 1994 growing seasons. Reflectance data collected with the MSR were used a s inputs for a neural network computer program. The neural network used the reflectance data to predict forage biomass. Biomass estimates made with the MSR were found to predict actual biomass, as measured by hand-clipping, across all plant growth stages with an error of approximately 6%. Radiometric determination of biomass is a reliable alternative to hand-clipping and can be accomplished in …

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Response Of Pregnant Beef Cows To Undegradable Intake Protein Fed In Excess Of The Degradable Intake Protein Requirement (1995), R.C. Cochran, H.H. Koster, E.S. Vanzant, Timothy J. Jones, K. C. Olson, Evan C. Titgemeyer Jan 1995

Response Of Pregnant Beef Cows To Undegradable Intake Protein Fed In Excess Of The Degradable Intake Protein Requirement (1995), R.C. Cochran, H.H. Koster, E.S. Vanzant, Timothy J. Jones, K. C. Olson, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Two concurrent experiments were conducted to evaluate the effect on performance and forage intake of increasing the supply of undegradable intake protein (UIP) to pregnant beef cows already receiving sufficient degradable intake protein (DIP) to maximize forage intake. Three supplements were fed at .34% BW/day, providing .092% B W/day of DIP (level determined in previous study to maximize forage intake) and .042, .059, and .077% BW/day of UIP (low , moderate, and high UIP, respectively) . In study 1, ad libitum tallgrassprairie forage intake was measured daily from 12/1/93 to 2/10/9 4 using 18 pregnant Angus x Hereford cows. Forage …

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Determinants Of Prices For Cow-Calf Pairs (1995), J.L. Parcell, F.D. Hiner, Ted C. Schroeder Jan 1995

Determinants Of Prices For Cow-Calf Pairs (1995), J.L. Parcell, F.D. Hiner, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

A study of price determinants for cow-calf pairs was undertaken at a local Kansas auction company during 1993. Cow breed, age, health, condition score, horns, frame size, and whether the cow h ad been bred back impacted cow-calf pair values, as well as calf weight, health, and frame score. Addition ally, pairs per pen significantly impacted prices. Young healthy cows with healthy large calves received the highest prices.

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