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- 2011; Kansas Agricultural Experiment Station contribution; no. 12-064-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1056; Swine; Deoxynivalenol; Pelleting; Sodium metabisulfite; Vomitoxin; Nursery pig (2)
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- Kansas; Agricultural Experiment Station; Research; Publications; Finances; Projects (2)
- 2011 is known as Cattlemen’s Day (1)
- 2011; Beef Cattle Research (1)
- 2011; Beef; Anabolic implant; Average daily gain; Protein; Nitrogen (1)
- 2011; Beef; Beef Jerky; Salt; Flavor (1)
- 2011; Beef; CIDR-CO-Synch; Time artificial insemination (1)
- 2011; Beef; Carcass traits; Ultrasound; Progeny performance (1)
- 2011; Beef; Choline; Performance; Calves (1)
- 2011; Beef; Domestic semen; Artificial insemination (AI); Sales (1)
- 2011; Beef; Dried distillers grains; Stocker cattle; Performance; Carcass characteristics (1)
- 2011; Beef; Forage; Heifers; Tallgrass range (1)
- 2011; Beef; GnRH; CIDR; Synchronization rate (1)
- 2011; Beef; Heifers; Residual feed intake; Bulls (1)
- 2011; Beef; Intake; Sericea Lespedeza; Prairie hay (1)
- 2011; Beef; Protein; Tannins; Sericea lespedeza (1)
- 2011; Beef; Stocker cattle; Carcass characteristics; Performance; Dried distillers grains (1)
- 2011; Beef; Sulfur; In Vitro; Microorganisms; Corn; Alfalfa (1)
- 2011; Beef; Tenderness; Bos indicus; Bos taurus; Warner-Bratzler shear machine; Marbling (1)
- 2011; Beef; Weaning; Feedlot; Performance; Carcass characteristics (1)
- 2011; Beef; Wheat; Pregnancy rates; Fertility (1)
- 2011; Beef; Zilpaterol-HCl; Finishing steers; Protein (1)
- 2011; Kansas Agricultural Experiment Station contribution; no. 12-064-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1056; Swine; Amino acid ratio; DDGS; Lysine; Tryptophan; Finishing pig (1)
- 2011; Kansas Agricultural Experiment Station contribution; no. 12-064-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1056; Swine; Amino acid ratio; Lysine; Tryptophan; Nursery pig (1)
- 2011; Kansas Agricultural Experiment Station contribution; no. 12-064-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1056; Swine; Amino acids; Large neutral amino acids; Lysine; Tryptophan; Finishing pig (1)
- 2011; Kansas Agricultural Experiment Station contribution; no. 12-064-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1056; Swine; Astaxanthin; Carcass characteristics; Finishing pig; Pork color; Ractopamine HCl (1)
Articles 1 - 30 of 75
Full-Text Articles in Life Sciences
Southwest Research-Extension Center Field Day 2011
Southwest Research-Extension Center Field Day 2011
Kansas Agricultural Experiment Station Research Reports
Each Field Day report consists of individual research reports on topics specific to the region, including cultural methods for most of the major crops grown in Kansas, mitigating the effects of weeds, insects, and disease associated with those crops, and irrigation. Research is conducted and reports written by staff of the K-State Research and Extension Southwest Research Extension Center.
Kansas Fertilizer Research 2010, Dorivar Ruiz Diaz
Kansas Fertilizer Research 2010, Dorivar Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
No abstract provided.
Export Sales Of U.S. Beef Semen Increased Faster Than Domestic Semen Sales, Sandra K. Johnson, Kevin C. Dhuyvetter
Export Sales Of U.S. Beef Semen Increased Faster Than Domestic Semen Sales, Sandra K. Johnson, Kevin C. Dhuyvetter
Kansas Agricultural Experiment Station Research Reports
The use of artificial insemination (AI) in the dairy industry grew tremendously in the 1940s and has since become the industry norm. Adoption of AI in the beef industry has been much slower largely due to the more extensive nature of beef production systems. Improvements in protocols to synchronize estrus and ovulation now allow beef producers to achieve high pregnancy rates to AI with no heat detection and value-driven marketing programs have provided more incentive for use of high-accuracy genetics. The 2007 USDA National Animal Health Monitoring Surveillance survey reports the proportion of beef operations that use AI is only …
Nutrient Restriction Does Not Affect Implant Efficacy, T. Lee, Laman K. Mamedova, Benjamin W. Wileman, Daniel U. Thomson, Barry J. Bradford, Christopher D. Reinhardt
Nutrient Restriction Does Not Affect Implant Efficacy, T. Lee, Laman K. Mamedova, Benjamin W. Wileman, Daniel U. Thomson, Barry J. Bradford, Christopher D. Reinhardt
Kansas Agricultural Experiment Station Research Reports
Anabolic implants in finishing beef cattle offer significant return on investment. Anabolic implants improve average daily gain feed efficiency in pasture and feedlot cattle. One way growth-promoting implants stimulate growth is through increasing production of insulin-like growth factor 1. This hormone causes muscle cells to increase their uptake of glucose and amino acids from the bloodstream. Plasma urea nitrogen is a simple measure of the protein nutritional status of animals. If lean growth is stimulated, more feed protein is utilized and retained as body protein, reducing the amount of circulating plasma urea nitrogen. If an animal is stressed and is …
Relationship Between Ultrasonically Measured Beef Cow Carcass Traits And Lifetime Productivity, L.A. Pacheco, John R. Jaeger, Jennifer Bormann, K. C. Olson
Relationship Between Ultrasonically Measured Beef Cow Carcass Traits And Lifetime Productivity, L.A. Pacheco, John R. Jaeger, Jennifer Bormann, K. C. Olson
Kansas Agricultural Experiment Station Research Reports
Ultrasound is widely used in seed stock production, commercial operations, and in feed yards to predict carcass merit. It also has been used to assess the value of individuals as parents in the seed stock industry. Ultrasound has several advantages as a technique to evaluate body composition: it is relatively inexpensive; it produces results more rapidly compared to progeny testing programs; and data are less prone to selection bias than direct carcass data collection. Ultrasound measures of ribeye area and proportion of intramuscular fat are accurate predictors of their corresponding carcass traits in fed slaughter cattle. Thus, average heritability estimates …
Forage Selection Preferences Of Experienced Cows And Naïve Heifers Grazing Native Tallgrass Range During Winter, N.A. Aubel, L.N. Edwards, G.J. Eckerle, L.A. Pacheco, K. C. Olson, John R. Jaeger, Dale A. Blasi, Leigh W. Murray
Forage Selection Preferences Of Experienced Cows And Naïve Heifers Grazing Native Tallgrass Range During Winter, N.A. Aubel, L.N. Edwards, G.J. Eckerle, L.A. Pacheco, K. C. Olson, John R. Jaeger, Dale A. Blasi, Leigh W. Murray
Kansas Agricultural Experiment Station Research Reports
Estimating the nutritive value of a grazing animal's diet is a significant challenge. Description of the botanical composition of a grazed diet is vital in that regard. Microhistological analysis of fecal material has been used for estimating the botanical composition of wild and domestic ungulate diets since first described by Baumgartner and Martin in 1939. Little research has been conducted on the diet selection preferences of multiparous beef cows compared to primiparous beef cows. We hypothesized that foraging strategies change as cows age. To that end, our objective was to characterize differences in diet selection between experienced multiparous and naïve …
Voluntary Intake Of Prairie Hay Contaminated With Sericea Lespedeza (Lespedeza Cuneata) By Beef Cows, G.J. Eckerle, L.A. Pacheco, K. C. Olson, John R. Jaeger
Voluntary Intake Of Prairie Hay Contaminated With Sericea Lespedeza (Lespedeza Cuneata) By Beef Cows, G.J. Eckerle, L.A. Pacheco, K. C. Olson, John R. Jaeger
Kansas Agricultural Experiment Station Research Reports
Sericea lespedeza (Lespedeza cuneata) is a noxious weed that infests approximately 600,000 acres of native tallgrass range in the Kansas Flint Hills. Intake of sericea lespedeza by grazing beef cattle is poor due to the presence of condensed tannins in the plant. Condensed tannins reduce protein digestion by beef cattle and may decrease plant palatability because of their astringence. Prolific seed production, in combination with little or no grazing pressure, has contributed to the rapid spread of sericea lespedeza in the Flint Hills. Increasing grazing pressure on sericea lespedeza may reduce seed production and slow its invasion; however, the difficulties …
Zilpaterol-Hcl Reduces Urinary Excretion Of N-Tau-Methylhistidine By Finishing Steers, D.W. Brake, Evan C. Titgemeyer
Zilpaterol-Hcl Reduces Urinary Excretion Of N-Tau-Methylhistidine By Finishing Steers, D.W. Brake, Evan C. Titgemeyer
Kansas Agricultural Experiment Station Research Reports
Zilpaterol-HCl is an orally active b-adrenergic agonist that repartitions nutrient use in cattle and has been approved for use during the final 20 to 40 days of the finishing period. Zilpaterol administration to finishing cattle increases average daily gain, feed efficiency, hot carcass weight, ribeye area, and dressing percentage; however, zilpaterol decreases meat tenderness, which is detectable by sensory panelists. Attenuation of zilpaterol's effect on tenderness would improve its benefits to cattle producers. Decreases in tenderness of meat from cattle fed zilpaterol may be closely related to decreases in protein degradation in skeletal muscles. Urinary excretion of N-tau-methylhistidine (NMH) in …
Effects Of Prepartum Ruminally Protected Choline Supplementation On Performance Of Beef Cows And Calves, L.A. Pacheco, L.R. Hibbard, M.J. Macek, N.A. Sproul, G.J. Eckerle, E.A. Bailey, J.W. Bolte, John R. Jaeger, K. C. Olson
Effects Of Prepartum Ruminally Protected Choline Supplementation On Performance Of Beef Cows And Calves, L.A. Pacheco, L.R. Hibbard, M.J. Macek, N.A. Sproul, G.J. Eckerle, E.A. Bailey, J.W. Bolte, John R. Jaeger, K. C. Olson
Kansas Agricultural Experiment Station Research Reports
Prepartum supplementation of spring-calving beef cows is a vital part of cow-calf enterprises, often affecting subsequent reproductive success. Most research in the area of prepartum supplementation has focused on provision of either energy or protein; only modest attention has been given to the use of supplemental micronutrients. One such micronutrient is choline. Choline is classified generally as a B vitamin and is an essential nutrient. Phosphatidylcholine and other choline-containing lipids maintain the structural integrity of cellular membranes and play a vital role in metabolism of dietary fat. Choline-containing phospholipids are also important precursors for intracellular-messenger molecules and cell-signaling molecules critical …
Effects Of Dietary L-Carnitine And Ddgs On Growth, Carcass Characteristics, And Loin And Fat Quality Of Growing-Finishing Pigs (2011), W Ying, Michael D. Tokach, Steven S. Dritz, Terry A. Houser, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen
Effects Of Dietary L-Carnitine And Ddgs On Growth, Carcass Characteristics, And Loin And Fat Quality Of Growing-Finishing Pigs (2011), W Ying, Michael D. Tokach, Steven S. Dritz, Terry A. Houser, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen
Kansas Agricultural Experiment Station Research Reports
A total of 1,104 barrows and gilts (PIC 337 × 1050, initially 80 lb) were used in a 109-d study to evaluate the effects of dietary L-Carnitine and dried distillers grains with solubles (DDGS) on growth, carcass traits, and loin and fat quality. Pigs were blocked by weight and randomly assigned to 1 of 6 treatments with 7 replications per treatment. Treatments were arranged as a 2 × 3 factorial with main effects of added DDGS (0 or 30% in Phases 1, 2, and 3 and 20% in Phase 4) and L-Carnitine (0, 50, or 100 ppm). Dietary treatments were …
Evaluation Of Ractopamine Hcl Feeding Programs On Growth Performance And Carcass Characteristics Of Finishing Pigs (2011), W Ying, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Evaluation Of Ractopamine Hcl Feeding Programs On Growth Performance And Carcass Characteristics Of Finishing Pigs (2011), W Ying, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 934 barrows and gilts (PIC 337 × 1050, initially 240 lb) were used in a 26-d experiment to evaluate the effect of different Ractopamine HCl (RAC) feeding programs on growth and carcass traits of finishing pigs. Treatments included a basal diet with (1) no RAC for 26 d (control), (2) 7.5 ppm RAC for 26 d (constant), (3) 5 ppm RAC for d 0 to 14 and 10 ppm for d 14 to 26 (step-up), and (4) RAC concentration increased daily from 5 ppm on d 0 to 10 ppm on 26 d by using the FEEDPro …
Effects Of Xylanase In Growing-Finishing Diets Varying In Dietary Energy And Fiber On Growth Performance, Carcass Characteristics, And Nutrient Digestibility (2011), J A. Barnes, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Effects Of Xylanase In Growing-Finishing Diets Varying In Dietary Energy And Fiber On Growth Performance, Carcass Characteristics, And Nutrient Digestibility (2011), J A. Barnes, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 576 pigs (PIC TR4 × 1050, 106 lb initial BW) were used in a 75-d trial to evaluate effects of xylanase (Porzyme 93010; Danisco Animal Nutrition, St. Louis, MO) in growing-finishing diets varying in dietary energy and fiber on growth perfor- mance, carcass characteristics, and nutrient digestibility. Pens of pigs were randomly allotted to 1 of 6 dietary treatments in a 2 × 3 factorial (with or without xylanase and 3 dietary energy levels) with 8 pigs per pen and 12 replications per treatment. The 6 treatments consisted of corn-soybean meal-based diets with added dried distillers grains …
Effects Of Lowering Dietary Ndf Levels Prior To Marketing On Finishing Pig Growth Performance, Carcass Characteristics, Carcass Fat Quality, And Intestinal Weights (2011), M D. Asmus, Michael D. Tokach, Steven S. Dritz, Terry A. Houser, Joel M. Derouchey, Jim L. Nelssen, Robert D. Goodband
Effects Of Lowering Dietary Ndf Levels Prior To Marketing On Finishing Pig Growth Performance, Carcass Characteristics, Carcass Fat Quality, And Intestinal Weights (2011), M D. Asmus, Michael D. Tokach, Steven S. Dritz, Terry A. Houser, Joel M. Derouchey, Jim L. Nelssen, Robert D. Goodband
Kansas Agricultural Experiment Station Research Reports
A total of 264 pigs (PIC 327 × 1050, initially 90.1 lb) were used in a 90-d study to determine the effects of withdrawal of high dietary NDF (provided by wheat middlings [midds] and dried distillers grains with solubles [DDGS]) on growth performance, carcass characteristics, carcass fat quality, and intestinal weights of growing-finishing pigs. Pens of pigs were randomly allotted by initial weight and gender to 1 of 6 dietary treatments with 6 replications per treatment. There were 24 pens with 7 pigs per pen (3 barrows and 4 gilts) and 12 pens with 8 pigs per pen (4 barrows …
Determining The Effects Of L-Tryptophan Addition To Diets Containing 30% Dried Distillers Grains With Solubles On Finishing Pig Growth Performance (2011), S Nitikanchana, J Usry, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz
Determining The Effects Of L-Tryptophan Addition To Diets Containing 30% Dried Distillers Grains With Solubles On Finishing Pig Growth Performance (2011), S Nitikanchana, J Usry, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 845 pigs (PIC 380 × Mosanto; initially 163 lb) were used in a 61-d study to determine the effects of L-tryptophan addition to diets containing 30% dried distillers grains with solubles (DDGS) on the growth performance of finishing pigs reared in a commercial environment. Pens of pigs were balanced by initial weight and randomly allotted to 1 of 5 dietary treatments in a completely randomized design with 25 to 30 pigs per pen and 6 replications per treatment. Treatments included 4 standardized ileal digestible (SID) tryptophan:lysine ratios (15, 17, 19, and 21% of lysine) using crystal- line …
Determining The Effects Of Tryptophan:Lysine Ratios In Diets Containing 30% Dried Distillers Grains With Solubles On Growth Performance Of 157- To 285-Lb Pigs (2011), S Nitikanchana, J L. Usry, R D. Boyd, C E. Zier-Rush, M Mcgrath, Michael D. Tokach, Steven S. Dritz
Determining The Effects Of Tryptophan:Lysine Ratios In Diets Containing 30% Dried Distillers Grains With Solubles On Growth Performance Of 157- To 285-Lb Pigs (2011), S Nitikanchana, J L. Usry, R D. Boyd, C E. Zier-Rush, M Mcgrath, Michael D. Tokach, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 2,298 pigs (half gilts and half barrows, PIC TR4 × 1050; initially 157 lb) were used in a 52-d study to determine the effects of increasing tryptophan:lysine ratios in diets containing 30% dried distillers grains with solubles (DDGS) on the growth performance of finishing pigs raised in a commercial environment. Pens of pigs were balanced by initial weight and randomly allotted to 1 of 6 dietary treatments in a completely randomized design within gender; each pen contained 23 pigs and each treatment had 16 to 17 replications. Treatments were arranged as a 2 × 6 factorial with …
Evaluation Of Heparin Production By-Products In Nursery Pig Diets (2011), A J. Myers, M U. Steidinger, B W. Ratliff, D M. Mckilligan, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz
Evaluation Of Heparin Production By-Products In Nursery Pig Diets (2011), A J. Myers, M U. Steidinger, B W. Ratliff, D M. Mckilligan, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 1,152 weanling pigs (Newsham GPK35 × PIC380, initially 12.3 ± 1.30 lb, 20 ± 2 d of age) were used in a 39-d study to evaluate the effects of select menha- den fish meal (SMFM), poultry meal, PEP2+, Peptone 50, and PEP-NS on nursery pig performance. PEP2+, Peptone 50, and PEP-NS are all porcine intestinal mucosa products, but they differ in the carriers with which they are co-dried. PEP2+ is co-dried with enzymatically processed vegetable proteins and amino acid (AA) dried fermentation biomass. Peptone 50 is co-dried with a vegetable protein, whereas PEP-NS uses by-products from corn …
Influence Of Dietary Isoleucine:Lysine Ratio On The Optimal Tryptophan:Lysine Ratio For 13- To 24-Lb Pigs (2011), S Nitikanchana, A L. Chipman, J Usry, J F. Patience, Michael D. Tokach, Steven S. Dritz
Influence Of Dietary Isoleucine:Lysine Ratio On The Optimal Tryptophan:Lysine Ratio For 13- To 24-Lb Pigs (2011), S Nitikanchana, A L. Chipman, J Usry, J F. Patience, Michael D. Tokach, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 475 nursery pigs (initially 13.4 lb and 5 d postweaning) were used to determine the influence of the standardized ileal digestible (SID) isoleucine:lysine ratio on the optimal SID tryptophan:lysine ratio for growth performance of nursery pigs. This experiment was conducted in the all-in, all-out nursery at the Swine Nutrition Farm at Iowa State University. Each treatment had 8 replications with 4 or 5 pigs per pen, with equal numbers of barrows and gilts within block and across treatments. Pens were allotted to 1 of 12 treatments in a randomized complete block design. Treatments were arranged as a …
The Effects Of Sorghum Dried Distillers Grains With Solubles On Nursery Pig Performance (2011), K M. Sotak, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz
The Effects Of Sorghum Dried Distillers Grains With Solubles On Nursery Pig Performance (2011), K M. Sotak, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
Two experiments were conducted to determine the effects of sorghum dried distillers grains with solubles (DDGS) on nursery pig growth performance. In both experiments, sorghum DDGS were added to corn- or sorghum-based diets to determine their impact on ADG, ADFI, and F/G. In Exp. 1, a total of 360 nursery barrows (PIC 1050, initially 15.1 lb and 26 d of age) were used with 5 pigs per pen and 9 pens per treatment. Pigs were allotted to 1 of 8 dietary treatments arranged in a 2 × 4 factorial with main effects of grain source (corn vs. sorghum) and sorghum …
A Prrs Cap Update On The Regional Control And Elimination Of Prrsv (2011), Raymond R. Rowland R
A Prrs Cap Update On The Regional Control And Elimination Of Prrsv (2011), Raymond R. Rowland R
Kansas Agricultural Experiment Station Research Reports
The control and elimination of porcine reproductive and respiratory syndrome virus (PRRSV) represents one of the most challenging tasks facing the swine industry world- wide. Several factors related to the biology of the virus make disease detection and elimination difficult. Efforts are further hampered by a lack of vaccines that can protect naïve herds from infection. With this in mind, elimination efforts that incorporate existing tools and knowledge are being initiated. The principal focus is at the region level. One example of success is the Stevens County project in Minnesota, which has attained a PRRSV-negative status and has been expanded …
Utilizing Vaccination For Porcine Circovirus Type 2 As A Tool To Aid Elimination Of Pcv2 From Swine Populations (2011), M L. Potter, Jerome C. Nietfeld, Richard D. Oberst, Steven C. Henry, Lisa M. Tokach, Michael P. Hays, A Fuller, B E. Straw, R O. Bates, Richard A. Hesse, Raymond R. Rowland, Steven S. Dritz
Utilizing Vaccination For Porcine Circovirus Type 2 As A Tool To Aid Elimination Of Pcv2 From Swine Populations (2011), M L. Potter, Jerome C. Nietfeld, Richard D. Oberst, Steven C. Henry, Lisa M. Tokach, Michael P. Hays, A Fuller, B E. Straw, R O. Bates, Richard A. Hesse, Raymond R. Rowland, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
; Swine Day, Manhattan, KS, November 17, 2011
K-State Turfgrass Research 2011, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service
K-State Turfgrass Research 2011, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service
Kansas Agricultural Experiment Station Research Reports
Turfgrass Research 2011 contains results of projects conducted by Kansas State University faculty and graduate students. Some of these results will be presented at the Kansas Turfgrass Field Day, August 4, 2011, at the John C. Pair Horticultural Research Center in Olathe, Kan. Articles included in this Report of Progress present summaries of research projects that were completed recently or will be completed in the next year or two. Specifically, this year's report presents summaries of research on turf and the environment, pest control, and turf evaluations.
Southwest Research-Extension Center, Field Day 2011
Southwest Research-Extension Center, Field Day 2011
Kansas Agricultural Experiment Station Research Reports
Report of agricultural research from Southwest Research-Extension Center of Kansas State University.
Effects Of Supplementing Methionine And Lysine In A Lactation Diet Containing High Concentrations Of Corn By-Products (2011), C.R. Mullins, D. Weber, E. Block, John F. Smith
Effects Of Supplementing Methionine And Lysine In A Lactation Diet Containing High Concentrations Of Corn By-Products (2011), C.R. Mullins, D. Weber, E. Block, John F. Smith
Kansas Agricultural Experiment Station Research Reports
Ninety-six lactating Holstein cows were used to determine the effects of using commercial supplements to supply additional lysine and methionine in diets containing large proportions of corn by-products. Cows were assigned to 1 of 8 pens. Pens were offered rations formulated to differ in metabolizable lysine and methionine supply. The study was divided into 2 periods. During period 1, cows received similar diets, but the treatment diet supplied supplemental lysine and methionine. During period 2, the treatment diet was modified to reduce dietary crude protein. Feed intake and production were monitored daily, and milk components were analyzed 3 days per …
Evaluation Of Methionine Availability To Dairy Cowswhen Added To Mechanically Extracted Soybean Mealwith Soy Gums (2011), D.W. Brake, Evan C. Titgemeyer, Barry J. Bradford, C.A. Macgregor
Evaluation Of Methionine Availability To Dairy Cowswhen Added To Mechanically Extracted Soybean Mealwith Soy Gums (2011), D.W. Brake, Evan C. Titgemeyer, Barry J. Bradford, C.A. Macgregor
Kansas Agricultural Experiment Station Research Reports
Twenty-five Holstein cows were fed 5 different diets to evaluate amounts of metabolizable methionine provided to dairy cows from a mechanically extracted soybean meal (meSBM) with methionine added during manufacture. The control diet was designed to be deficient in metabolizable methionine supply. Two amounts of methionine were added from either a commercially available ruminally protected product (RPMet) or from a meSBM with methionine added during manufacture (meSBM-Met). Average milk yield was 98.8 lb/day, average milk fat was 2.81%, and milk urea nitrogen (MUN) averaged 8.6 mg/dL. Milk protein yield was not responsive to metabolizable methionine supply, suggesting that milk protein …
Prostaglandin F2Α And Gnrh Administration Improvedprogesterone Status, Luteal Number, And Proportionof Ovular And Anovular Dairy Cows With Corpora Luteabefore A Timed Artificial Insemination Program (2011), Stephanie Leeann Pulley, H.I. Jr. Mellieon, Jeffrey S. Stevenson
Prostaglandin F2Α And Gnrh Administration Improvedprogesterone Status, Luteal Number, And Proportionof Ovular And Anovular Dairy Cows With Corpora Luteabefore A Timed Artificial Insemination Program (2011), Stephanie Leeann Pulley, H.I. Jr. Mellieon, Jeffrey S. Stevenson
Kansas Agricultural Experiment Station Research Reports
The objective of this research was to increase the proportion of cows with at least 1 functional corpus luteum (CL) and elevated progesterone at the onset of the timed artificial insemination (TAI) program. Postpartum Holstein cows in 1 herd were stratified by lactation number at calving (September 2009 through August 2010) and assigned randomly to 1 of 2 treatments: (1) Presynch-10 (n = 105): two 25-mg injections of prostaglandin F2α(PG) 14 days apart (Presynch); and (2) PG-3-G (n = 105): one 25-mg injection of PG 3 days before 100 μg gonadotropin- releasing hormone (GnRH; Pre-GnRH), with the PG injection administered …
Enhancing Cysteine Content In Yogurt (2011), Soumya Bala, Karen A. Schmidt
Enhancing Cysteine Content In Yogurt (2011), Soumya Bala, Karen A. Schmidt
Kansas Agricultural Experiment Station Research Reports
Cysteine is considered a conditional amino acid for certain subpopulations. For example, in elderly people, cysteine has been associated with diverse functional properties as a general antioxidant as well as a specific role linked to cataract reduction or prevention. Yogurt is an excellent source of protein, the sulfur-containing amino acids methionine and cysteine in particular. Heat, however, can denature these amino acids and affect their bioavailability. A yogurt mix supplemented with whey proteins (an abundant source of cystiene) coupled with minimal pasteurization of yogurt mixes may increase the availability of cysteine in the final product. In this study, yogurt mixes …
Effect Of Sample Size And Method Of Sampling Pig Weights On The Accuracy Of Estimating The Mean Weight Of The Population (2011), C B. Paulk, G L. Highland, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz
Effect Of Sample Size And Method Of Sampling Pig Weights On The Accuracy Of Estimating The Mean Weight Of The Population (2011), C B. Paulk, G L. Highland, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
Producers have adopted marketing strategies such as topping to help cut economic losses at the processing plant. Even though producers are implementing these strategies, they are still missing target weights and receiving substantial discounts. To assess this situation, we must first determine the accuracy of sampling methods producers use to estimate the mean weight of the population. The standard sampling procedure that has been adapted by many producers is to weigh a subsample of pigs in multiple pens (i.e., 5 pigs from 6 pens). Using a computer program developed in R (R Foundation for Statistical Computing, Vienna, Austria), we were …
Determining The Effect Of The Ratio Of Tryptophan To Large Neutral Amino Acids On The Growth Performance Of Finishing Pigs (2011), S Nitikanchana, J L. Usry, J R. Bergstrom, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Determining The Effect Of The Ratio Of Tryptophan To Large Neutral Amino Acids On The Growth Performance Of Finishing Pigs (2011), S Nitikanchana, J L. Usry, J R. Bergstrom, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 96 pigs (PIC TR4 × 1050; initially 77.4 lb) were used in 2 14-d studies to determine the effect of standardized ileal digestible (SID) tryptophan to large neutral amino acids (LNAA) ratio on growth performance of finishing pigs. Pens of pigs were balanced by initial weight and randomly allotted to 1 of 4 dietary treatments in a completely randomized design with 4 pigs per pen and 6 replications per treatment. The treatment diets were fed in 2 phases: early finishing phase (77 to 106 lb BW) and late finishing phase (183 to 217 lb BW), with a …
Grazing Wheat Did Not Reduce Beef Cow Pregnancy Rates, Sandra K. Johnson, Keith R. Harmoney
Grazing Wheat Did Not Reduce Beef Cow Pregnancy Rates, Sandra K. Johnson, Keith R. Harmoney
Kansas Agricultural Experiment Station Research Reports
Beef producers can lower feed costs by extending the grazing period and reducing the need for harvested forages. Complementary forage systems extend the native range grazing season; wheat pasture is common in the southern portion of the High Plains. Anecdotal reports have been made concerning lowered fertility in beef cows bred on lush forage such as wheat pasture; however, ruling out other possible causes of low fertility is difficult. In lactating dairy cows, fertility is lower during consumption of high-protein diets that result in high blood urea nitrogen content. Lower uterine pH that in turn affects embryo survival is thought …
Is Gnrh Necessary At Cidr Insertion Using A 7-Day Cidr Synchronization Protocol For Beef Heifers?, D.R. Eborn, E.E. Blair, David M. Grieger
Is Gnrh Necessary At Cidr Insertion Using A 7-Day Cidr Synchronization Protocol For Beef Heifers?, D.R. Eborn, E.E. Blair, David M. Grieger
Kansas Agricultural Experiment Station Research Reports
The EAZI-BREED CIDR is commonly used in estrous synchronization protocols for both beef heifers and cows. The label calls for insertion of a progesterone-impregnated controlled internal drug release (CIDR) for 7 consecutive days with an injection of prostaglandin F2αgiven a day before CIDR removal. Animals should display estrus 1 to 3 days after CIDR removal. Modifications to this protocol include administration of gonadotropin-releasing hormone (GnRH) at the time of CIDR insertion and administration of the prostaglandin injection at the time of CIDR removal on day 7. Use of GnRH in conjunction with a CIDR may improve estrous synchronization in beef …