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Kansas Agricultural Experiment Station Research Reports

1995

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Articles 1 - 30 of 91

Full-Text Articles in Animal Sciences

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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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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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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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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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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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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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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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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Sulfur Amino Acid Utilization By Growing Steers (1995), C.G. Campbell, G. St Jean, Evan C. Titgemeyer Jan 1995

Sulfur Amino Acid Utilization By Growing Steers (1995), C.G. Campbell, G. St Jean, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to evaluate sulfur amino acid requirements of growing steers. In trial 1, six ruminally cannulated steers (352 lb) were used to determine methionine requirements . Treatments were abomasal infusions of 0, 2, 4, 6, 8, or 10 g/day of L-methionine. Steers were fed 5.8 lb of a soyhull and wheat straw based diet. Continuous infusion s of acetate, propionate, and butyrate into the rumen and of dextrose into the abomasum were made to increase energy. Amino acids other than methionine were infused into the abomasum to ensure that they did not limit steer performance. Nitrogen retention …

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Feeder Cattle Price Differentials: How Much Did They Change Over Time? (1995), J. Mintert, F. Brazle, J. Iii Sartwelle, R. Jr. Bolze, Michael R. Langemeier, Ted C. Schroeder Jan 1995

Feeder Cattle Price Differentials: How Much Did They Change Over Time? (1995), J. Mintert, F. Brazle, J. Iii Sartwelle, R. Jr. Bolze, Michael R. Langemeier, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

Results from mathematical models of feeder cattle price/characteristics using data collected in Kansa s and Missouri in 1986/1987 and from 1993 using the same data collection and modeling procedures indicate that the implicit values of many feeder cattle characteristics changed over time. Characteristic values often changed whether their value was measured in dollars per hundredweight or as a percentage of the mean feeder p rice during the data collection period. Directional impacts of characteristics on feeder cattle price were generally consistent from 1986/1987 to 1993. These results imply that, as market conditions change, new feeder cattle price/characteristic relationships need to …

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Relating Quality Changes To Storage Time For Baled Alfalfa (1995), W.K. Coblentz, J.O. Fritz, K.K. Bolsen, R.C. Cochran Jan 1995

Relating Quality Changes To Storage Time For Baled Alfalfa (1995), W.K. Coblentz, J.O. Fritz, K.K. Bolsen, R.C. Cochran

Kansas Agricultural Experiment Station Research Reports

The relationships between storage time and several chemical indices for forage quality were established for alfalfa hay baled at two moisture levels (29.9 and 19.7%) in conventional and laboratory bale s made at 1.0, 1.5, and 2.0 times the density o f parent, conventional bales. Bales were sampled after 0, 4, 11, 22, and 60 days. For the high-moisture bales, most quality indices indicated substantial nutrient loss early in the storage period, particularly between days 4 and 11, with little change after 22 days. A nonlinear mathematical model was constructed to describe how neutral detergent fiber and several other quality …

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Factors Affecting Premature Browning In Cooked Ground Beef (1995), Melvin C. Hunt, K.E. Warren, Donald H. Kropf, M.A. Hague, C.L. Waldner, Sally L. Stroda, Curtis L. Kastner Jan 1995

Factors Affecting Premature Browning In Cooked Ground Beef (1995), Melvin C. Hunt, K.E. Warren, Donald H. Kropf, M.A. Hague, C.L. Waldner, Sally L. Stroda, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

Some ground beef patties developed an internal, brown cooked color and looked well-done at temperatures as low as 13 1EF, whereas normal patties were re d to pink. The premature brown color was not relate d to percent fat; patty compaction; animal source and maturity; pH (5.5 to 5.8); or concentrations of raw patty heme and nonhemeiron, myoglobin, and total pigment. Because oxidation-reduction potential and total reducing activities were higher (P<.05) and TBA numbers were lower (P<.05) in normal than prematurely brown patties, the brown color is apparently related to greater patty oxidation.

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Agronomic Performance And Silage Quality Traits Of Forage Sorghum Hybrids In 1994 (1995), M.S. Mitchem, L. Pfaff, K.K. Bolsen, Matthew A. Young Jan 1995

Agronomic Performance And Silage Quality Traits Of Forage Sorghum Hybrids In 1994 (1995), M.S. Mitchem, L. Pfaff, K.K. Bolsen, Matthew A. Young

Kansas Agricultural Experiment Station Research Reports

The 1994 growing season was characterized by near norm al rainfall and temperatures. Both whole-plant DM and grain yields were excellent for all hybrid s. The middle-season Pioneer 947 hybrid had the highest grain yield. The two dual-purpose hybrids had the highest whole-plant DM yields, and the male sterile (Golden Harvest H-1) and the grain sorghum (DeKalb 42Y) had the lowest. Strong winds in the first week in September caused substantial lodging in three of the four tall middle- and late-season hybrids (DeKalb FS-5 and Golden Harvest H-2 and H-68). Two of the short height, dual purpose hybrids (Northrup King …

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Cash Operating Income And Liquidity Management For Dairy Farms (1995), B.D. Elliott, Michael R. Langemeier, Allen M. Featherstone Jan 1995

Cash Operating Income And Liquidity Management For Dairy Farms (1995), B.D. Elliott, Michael R. Langemeier, Allen M. Featherstone

Kansas Agricultural Experiment Station Research Reports

Net cash flow measures the amount of cash remaining after all cash expense obligations are satisfied. This cash is available for additional farm investment, off-farm investment, family living, and additional debt repayment. A 5- year average monthly cash flow statement was used to determine net cash flow for 19 Kansas dairy farms. Results indicated that excess cash and debt were used primarily to invest in machinery, vehicles, and nonfarm assets and increase the allocation for family living. Investments in land and buildings increased moderately during the study period.; Dairy Day, 1995, Kansas State University, Manhattan, KS, 1995;

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Improving Silage Quality (1995), K.K. Bolsen, Matthew A. Young, M.K. Siefers, G.L. Huck Jan 1995

Improving Silage Quality (1995), K.K. Bolsen, Matthew A. Young, M.K. Siefers, G.L. Huck

Kansas Agricultural Experiment Station Research Reports

Results at Kansas State University from over 200 laboratory-scale trials and 28 farmscale trials showed that bacterial inoculants consistently improved preservation efficiency and nutritive value of the ensiled material. In contrast, anhydrous ammonia or urea adversely affected dry matter recovery and production per ton of crop ensiled. Economic analysis also favored the use of bacterial inoculants over nonprotein-nitrogen additives. Research conducted using corn, sorghum, and alfalfa silages showed that sealing the exposed surface dramatically reduced top spoilage losses in bunker, trench, or stack silos.; Dairy Day, 1995, Kansas State University, Manhattan, KS, 1995;

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Ad Libitum Suckling By A Foster Calf In The Presence Or Absence Of The Cow's Own Calf Prolongs Postpartum Anestrus To First Ovarian Cycle (1995), G.C. Lamb, J.M. Smith, Jeffrey S. Stevenson Jan 1995

Ad Libitum Suckling By A Foster Calf In The Presence Or Absence Of The Cow's Own Calf Prolongs Postpartum Anestrus To First Ovarian Cycle (1995), G.C. Lamb, J.M. Smith, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Five treatments were initiated approximately 15 days after calving: 1) calf was weaned from its dam (CW); 2) calf was present continually with its own dam (CP-O); 3) calf was present continually with its own dam but contact with the udder was restricted (CR); 4) foster calf was pre sent continually but the cow's own calf was absent (CP-F); and 5) foster calf was present continually, and the dam's own calf was present but restricted (CR+F). Cows weaned at 15 days (CW) cycled in about 2 weeks, whereas cows in the CR treatment cycled 1 week later, and cows in …

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Pregnancy Rates In Virgin Heifers And Suckled Beef Cows After Synchronized Ovulation Using Pgf2a, Norgestomet, And Gnrh (1995), D.P. Hoffman, C.L. Krehbiel, R.M. Mckee, Jeffrey S. Stevenson, David A. Nichols Jan 1995

Pregnancy Rates In Virgin Heifers And Suckled Beef Cows After Synchronized Ovulation Using Pgf2a, Norgestomet, And Gnrh (1995), D.P. Hoffman, C.L. Krehbiel, R.M. Mckee, Jeffrey S. Stevenson, David A. Nichols

Kansas Agricultural Experiment Station Research Reports

One disadvantage of most estrous synchronization programs is their inability to induce cycling in prepubertal heifers and anestrous suckled beef cows. Suckled cows and virgin heifers were treated with PG F2", norgestomet, and GnRH to induce ovarian cyclicity in prepubertal heifers and anestrous suckled cows as well as to synchronize estrus in cycling females. The treatment consisted of two injections of PGF2" (day -14 and 0) plus 100 μg of GnRH and a 6 mg norgestomet implant on day -7. The implants were removed 24 h after the second injection of PGF2" (day 0). An injection of 100 μg of …

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Influence Of Degradable Intake Protein On Site And Extent Of Digestion In Beef Cows Consuming Low-Quality, Tallgrass-Prairie Forage (1995), H.H. Köster, R.C. Cochran, E.S. Vanzant, G. St Jean, Evan C. Titgemeyer Jan 1995

Influence Of Degradable Intake Protein On Site And Extent Of Digestion In Beef Cows Consuming Low-Quality, Tallgrass-Prairie Forage (1995), H.H. Köster, R.C. Cochran, E.S. Vanzant, G. St Jean, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Five Angus x Hereford cow s with ruminal and duodenal fistulas were used to evaluate the effect of providing increasing degradable intake protein (DIP) o n the site and extent of digestion of dormant, tallgrass-prairie forage. The DIP was provided from sodium caseinate, divided in two equal portions and infused intraruminally twice daily. Levels of DIP were: 0, 180, 360, 540, and 720 g/day. Supplemental DIP generally improved utilization of low quality forage, with maximum effects on duodenal N flow and forage organic matter intake at 540 g DIP/day.

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Wheat Middlings In High Concentrate Rations: Digestibility And Ruminal Metabolism (1995), B.S. Dalke, K.K. Bolsen, R.N. Jr. Sonon, Matthew A. Young Jan 1995

Wheat Middlings In High Concentrate Rations: Digestibility And Ruminal Metabolism (1995), B.S. Dalke, K.K. Bolsen, R.N. Jr. Sonon, Matthew A. Young

Kansas Agricultural Experiment Station Research Reports

Six medium-framed steers, fitted with ruminal cannulae were used in a 6 x 6 Latin square design and fed the following six high concentrat e (90%) rations: control; 5, 10, or 15% pelleted wheat middlings (WM) replacing the concentrate (dry rolled corn); and 5 or 10% pelleted WM replacing the roughage (chopped alfalfa hay). Dry matter (DM), organic matter (OM), and starch digestibilities decreased linearly when increasing levels of WM replaced the concentrate , but replacing the roughage increased DM and OM digestibilities linearly. WM could replace only up to 5 % of the concentrate without reducing nutrient digestibilities, but …

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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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Effect Of Rumen Escape Amino Acids And Multiple Tba Implants On Feedlot Performance Of Lightweight Holstein Steer Calves (1995), B.J. Healy, Robert T. Brandt Jr., Evan C. Titgemeyer Jan 1995

Effect Of Rumen Escape Amino Acids And Multiple Tba Implants On Feedlot Performance Of Lightweight Holstein Steer Calves (1995), B.J. Healy, Robert T. Brandt Jr., Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Two hundred forty Holstein steers (343 lb) were stratified by weight and allotted to one of eight treatment combinations in a 2 x 4 factorial arrangement. Main effects were implant (Synovex-S (S) or Synovex-S + Finaplix-S (SF) on day 0, 87, 168, and 238 and level of rumen escape amino acids (Smartamine-ML (SML) at 0, 5, 10, or 15 grams/head/day). These levels of SML supplied 0, 2.75, 5.5, and 8.25 g/day of Llysine and 0, .75, 1.5, and 2.25 g/day of DL-methionine. Steers implanted with SF gained 4% faster, had a 4% improvement in feed:gain, a lower dressing percentage, 12% …

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