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Articles 1 - 21 of 21
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Opportunities Farm Update, Erik Loe, Robbi Pritchard, Matt Loewe
Opportunities Farm Update, Erik Loe, Robbi Pritchard, Matt Loewe
South Dakota Beef Report, 2006
Opportunities Farm allows comparisons of different feedlot facilities located on one site for use in teaching and outreach. The three facilities are: 1) bed-pack confinement, 2) dirt-mound open pens, and 3) partially-covered pens. The first cattle were placed in Opportunities Farm in February 2004. There have been 3,023 head of steers and heifers marketed from Opportunities Farm through June 2006.
Sdsu Cow/Calf Teaching And Research Unit, Dick Pruitt
Sdsu Cow/Calf Teaching And Research Unit, Dick Pruitt
South Dakota Beef Report, 2006
The SDSU Cow Calf Teaching & Research Unit (CCU) provides cattle and facilities for numerous Animal Science and Range Science classes and a variety of research projects. The CCU also provides cattle for the SDSU Little International, Block & Bridle activities, numerous judging team workouts, and other activities that bring potential students to the SDSU campus. Kevin VanderWal and Anna Drew, along with part time student employees, manage the herd and assist with beef cattle activities throughout the year. Faculty members that have conducted or contributed to research in recent years include: Dick Pruitt, George Perry, Sandy Smart, Jeff Clapper, …
North Central Water Quality Survey¹, Lanette Butler, Cody L. Wright
North Central Water Quality Survey¹, Lanette Butler, Cody L. Wright
South Dakota Beef Report, 2006
This survey was conducted to determine the water quality in north central South Dakota. Twenty-one water sources from 16 different livestock operations were surveyed for this project. The water sources included five runoff-fed dugouts, 6 spring-fed dugouts, 4 deep wells (> 1000 ft), 3 medium-depth wells (100 to 500 ft) and 3 shallow wells (< 100 ft). Each water sample was initially tested with a hand-held Hanna Dist WP4 electroconductivity (EC) meter and the readings were recorded. Samples were then shipped to Servi-Tech Laboratories in Hastings, NE, where they were tested for EC, total dissolved solids (TDS), hardness, pH, calcium (Ca), chloride (Cl), magnesium (Mg), potassium (K), sulfate (SO4), sulfate-sulfur (SO4-S), and sodium (Na). Water quality indicators and mineral concentrations were not different over time when analyzed across all water sources or within each water source independently. Water from runoff-fed dugouts was lower (P < 0.05) in pH than water from spring-fed dugouts or wells. Well water contained greater (P < 0.05) concentrations of Cl than water from either runoff-fed or spring-fed dugouts. Potassium concentrations were greater (P < 0.05) in water from runoff-fed dugouts than in water from spring-fed dugouts or well water. Estimation of water quality without testing is highly inaccurate and variable. Livestock producers should obtain water samples for determination of water quality and adjust management to account for poor-quality water sources.
Rye And Turnips To Extend The Grazing Season For Weaned Calves, Alexander J. Smart, Richard J. Pruitt
Rye And Turnips To Extend The Grazing Season For Weaned Calves, Alexander J. Smart, Richard J. Pruitt
South Dakota Beef Report, 2006
As part of a series of studies to determine the feasibility of short season crops to extend the grazing season for weaned calves, planting date studies and a grazing trial were conducted near Brookings, SD. Small plots of turnips were seeded with a no-till drill into oat stubble on Aug 1 and 15 in year 1. In year 2, rye and turnips were seeded on July 20, Aug 1, and Aug 15. Based on forage yield, planting these crops on or before August 1 in eastern South Dakota is recommended. In late September of year 3, 44 weaned heifers were …
Predicting Forage Production, Stocking Rate, And Beef Production In Eastern South Dakota: A Case Study, Alexander J. Smart, Eric Mousel
Predicting Forage Production, Stocking Rate, And Beef Production In Eastern South Dakota: A Case Study, Alexander J. Smart, Eric Mousel
South Dakota Beef Report, 2006
In the summer of 1999, the Hand and Hyde County Bootstraps group met to form a working group to better understand “Management Intensive” Grazing (MIG) systems. From this working group of ranchers and state and federal agency personnel, evolved a goal to establish six demonstration sites in South Dakota (Figure 1). In 2000, the first demonstration site was established by Jim Faulstich near Highmore, SD in Hyde County. This site is a 320 acre pasture dominated by native mixed-grass prairie vegetation with some introduced species such as smooth bromegrass, Kentucky bluegrass, and crested wheatgrass. The pasture was fenced into 21 …
Effect Of An Injection Of Gnrh At Time Of Insemination Following Detection In Standing Estrus On Beef Cow And Heifer Pregnancy Rates, G. A. Perry
South Dakota Beef Report, 2006
An injection of GnRH at the initiation of standing estrus has been reported to increase pregnancy and circulating concentrations of progesterone in repeat breeder dairy cows, cows that have normal estrous cycles but will not conceive. The objective of this study was to determine the effect of administering an injection of GnRH at time of insemination on subsequent concentrations of progesterone and conception rates in beef cattle that have exhibited standing estrus. Eighty-two beef heifers at 2 locations were synchronized with the Select Synch-CIDR protocol (n = 42) or the 14-19 MGA protocol (n = 40) and AI was performed …
Effects Of Standing Estrus And Concentrations Of Estradiol On Uterine Ph¹, Josh R. Nelson, Bandi L. Perry, George A. Perry
Effects Of Standing Estrus And Concentrations Of Estradiol On Uterine Ph¹, Josh R. Nelson, Bandi L. Perry, George A. Perry
South Dakota Beef Report, 2006
Research has demonstrated that cows that are in estrus within 24 h of fixed-time AI had elevated concentrations of estradiol and greater pregnancy rates compared to cows that are not in estrus. Our objective was to determine if estradiol and/or estrus had an effect on uterine pH during a fixed-time AI protocol. Non-lactating beef cows (n = 20) were treated with the CO-Synch protocol (100μg GnRH on d -9; 25 mg PG on d -2; and 100μg GnRH on d 0). Half (n = 10) the cows received an injection of estradiol cypionate (ECP; 1mg) 12 h following PG. Cows …
Association Of Microsatellite Markers On Bovine Chromosomes 5 And 6 With Carcass Traits, Angela M. Sanborn, Eduardo Casas, Artur J.M. Rosa
Association Of Microsatellite Markers On Bovine Chromosomes 5 And 6 With Carcass Traits, Angela M. Sanborn, Eduardo Casas, Artur J.M. Rosa
South Dakota Beef Report, 2006
The objective of this study was to identify chromosomal regions associated with phenotypic variation in carcass traits in three crossbred families. Three half-sib families were developed from crossbred sires. Families 1, 2, and 3 comprised 29, 25, and 77 offspring, respectively (n = 131). The genetic background of the sires, dams, and offspring was 1/3 Angus, 1/3 Hereford, 1/3 Simmental. Carcass traits collected were finished weight, hot carcass weight (HCW), marbling score, Quality Grade, Longissimus muscle area (LMA), rib fat, percent kidney pelvic, and heart fat (KPH), and Yield Grade. Microsatellite markers on chromosomes 5 and 6 were selected based …
Association Of Leptin Gene Markers With Carcass Traits In Beef Cattle, Angela M. Sanborn, Artur J.M. Rosa, Stacy J. Linblom, Anna R. Taylor
Association Of Leptin Gene Markers With Carcass Traits In Beef Cattle, Angela M. Sanborn, Artur J.M. Rosa, Stacy J. Linblom, Anna R. Taylor
South Dakota Beef Report, 2006
The objective of this study was to evaluate four genetic markers on the leptin gene for association with carcass traits in three crossbred families. Three half-sib families were developed from crossbred sires. Families 1, 2, and 3 comprised 26, 21, and 66 offspring, respectively (n = 113). The genetic background of the sires, dams, and offspring was 1/3 Angus, 1/3 Hereford, 1/3 Simmental. Carcass traits collected were finished weight, hot carcass weight (HCW), marbling score, Quality Grade, Longissimus muscle area (LMA), rib fat, Yield Grade, and percent kidney, pelvic, and heart fat (KPH). The four markers analyzed were located on …
Cost Of Gain Comparison Between Cattle Finished At Opportunities Farm In South Dakota And Cattle Finished In Kansas, Erik Loe, Robbi Pritchard, Matt Loewe
Cost Of Gain Comparison Between Cattle Finished At Opportunities Farm In South Dakota And Cattle Finished In Kansas, Erik Loe, Robbi Pritchard, Matt Loewe
South Dakota Beef Report, 2006
Cost of gain is an important factor in determining the profit or loss of feeder cattle. For comparison of cost of gain between cattle finished in Southeast South Dakota and cattle finished in Southwest Kansas closeouts of cattle fed at the Opportunities Farm near Lennox, SD were compared with information published by Kansas State University in the monthly Focus on Feedlots. Cattle feeders in the Midwest, including South Dakota, are competitive with cattle feeders in other regions of the United States due to this regions lower ration costs and cost of gain.
Effect Of Single Vs. Pulsing Doses Of Estradiol 17-Β And Trenbolone Acetate In Finishing Steers Fed A High Concentrate Diet, Sandi L. Parr, Robbi H. Pritchard, Kelly W. Bruns
Effect Of Single Vs. Pulsing Doses Of Estradiol 17-Β And Trenbolone Acetate In Finishing Steers Fed A High Concentrate Diet, Sandi L. Parr, Robbi H. Pritchard, Kelly W. Bruns
South Dakota Beef Report, 2006
The effect of implant dosing pattern on anabolic response was evaluated in predominately Angus steers (n=192). Steers, except the control, were implanted with 1 of 3 different implant strategies. Cumulatively all implant treatments received a dose of 24 mg estradiol 17-β (E2) and 120 mg trenbolone acetate (TBA). Dosing patterns were 8 mg E2 and 40 mg TBA given 3 times; 12 mg E2 and 60 mg TBA given 2 times or 24 mg E2 and 120 mg TBA given 1 time. Implanted cattle had heavier body weights, increased average daily gain, and lower feed conversion compared to non-implanted controls. …
Use Of Ddgs As The Primary Source Of Supplemental Crude Protein In Calf Receiving Diets, Robbi H. Pritchard, Donald L. Boggs
Use Of Ddgs As The Primary Source Of Supplemental Crude Protein In Calf Receiving Diets, Robbi H. Pritchard, Donald L. Boggs
South Dakota Beef Report, 2006
This experiment was designed to determine whether DDGS could be used as the primary source of supplemental crude protein in receiving calf diets. Diets included 45% oat hay and rolled corn. The control diet included 11.8% SBM as the source of supplemental crude protein. The DDGS was fed at 18.9% of diet replacing SBM. There was 1.3% SBM included in the DDGS diets. Diets were formulated for 13% CP and 48 Mcal/cwt NEG. The 47-d experiment began at arrival at the feedlot and involved 294 steer calves (604 lb). Calf gains (2.49 vs 2.54 lb/d) and F/G (5.76 vs 5.61) …
Effect Of Increasing Dietary Concentration Of Dried Distillers Grains Plus Solubles On Phosphorus Balance In Finishing Steers, Clint Benson, Cody Wright, Josh Mccarthick, Robbi Pritchard
Effect Of Increasing Dietary Concentration Of Dried Distillers Grains Plus Solubles On Phosphorus Balance In Finishing Steers, Clint Benson, Cody Wright, Josh Mccarthick, Robbi Pritchard
South Dakota Beef Report, 2006
Eight crossbred steers (initial BW = 972.2 ± 33.5 lb) were used in a replicated Latin square design to determine the effect of increasing dietary concentrations of dried distillers grains plus solubles (DDGS) on phosphorus (P) balance in finishing steers. The control (CON) diet contained 79% dry rolled corn (DRC), 10% cottonseed hulls, 6% soybean meal (SBM), and 5% mineral supplement (total diet P concentration = 0.26%). In each of the remaining three diets, all of the SBM and a portion of the DRC were removed and replaced with DDGS at 12%, 24%, and 36% of the diet (total diet …
Dairy Digest 2006, South Dakota State University Dairy Club
Dairy Digest 2006, South Dakota State University Dairy Club
Dairy Digest
No abstract provided.
Testing Intervention Strategies To Reduce The Prevalence Of Lung Lesions In Lambs, Jay A. Daniel, Jeff E. Held
Testing Intervention Strategies To Reduce The Prevalence Of Lung Lesions In Lambs, Jay A. Daniel, Jeff E. Held
South Dakota Sheep Research Reports, 2006-07
We have previously demonstrated that lung lesions decrease average daily gain in lambs. We have also observed fall born lambs have a lower prevalence of lung lesions than spring born lambs. The different prevalence in lung lesions between spring and fall born lambs suggests that lung lesions can be prevented. Mannheimia (Pasteurella) haemolytica and/or Pasteurella multocida are present in lambs with moderate or severe lung lesions, but not in lambs with normal lung tissue. In serial slaughter studies, we observed lung lesions formed post-weaning. Therefore, we designed two studies to test possible intervention strategies to reduce the prevalence or severity …
The Effect Of Corn Or Soybean Hull Diets Supplemented With Dried Distillers Grain With Solubles (Ddgs) On Finishing Lamb Performance And Carcass Merit, Rob Zelinsky, Jay A. Daniel, Jeff E. Held
The Effect Of Corn Or Soybean Hull Diets Supplemented With Dried Distillers Grain With Solubles (Ddgs) On Finishing Lamb Performance And Carcass Merit, Rob Zelinsky, Jay A. Daniel, Jeff E. Held
South Dakota Sheep Research Reports, 2006-07
Eighty 78.1 ± 1.6 lb white-faced and brockle-faced wether and ewe lambs were used in an experiment to test the effects of soybean hulls and dried distillers grains with solubles (DDGS) on growth, feed efficiency and carcass merit. Lambs were placed on test between 79 to 105 days of age (average 92 days) and fed the experimental diets for 60 days. Each pen consisted of 10 lambs. Diets were formulated to meet or exceed NRC requirements. The diets were corn or soybean hull based and DDGS served as the protein supplement in both diets. No treatment differences were observed in …
Shearing Lambs Improves Growth Performance During Periods With Elevated Thermal Load, Jake J. Herrig, Simone M. Holt, J.A. Daniel
Shearing Lambs Improves Growth Performance During Periods With Elevated Thermal Load, Jake J. Herrig, Simone M. Holt, J.A. Daniel
South Dakota Sheep Research Reports, 2006-07
The purpose of this study was to determine if average daily gain (ADG) is improved in shorn lambs versus non-shorn lambs in the summer months in the upper Midwestern United States. Forty-nine purebred Hampshire and Columbia ram (n = 10 Hampshire and 4 Columbia) and ewe (n = 22 Hampshire and 13 Columbia) lambs were grouped by breed, sex, age (104 ± 1.7 days of age), and initial weight (109 ± 3.5 lbs) into shorn (n=26) and non-shorn (n=23) groups. After shearing (3 June 2004), shorn sheep had approximately 0.1 inches of wool-cover. Lambs were weighed 1, 29, and 57 …
Evaluation Of Reproduction And Blood Metabolites In Beef Heifers Fed Dried Distillers Grains Plus Solubles And Soybean Hulls During Late Gestation, Chanda L. Engel, H. H. Trey Patterson, Ron Haigh, Jason Johnson, Mindy Hubert, Brandi Perry, George A. Perry
Evaluation Of Reproduction And Blood Metabolites In Beef Heifers Fed Dried Distillers Grains Plus Solubles And Soybean Hulls During Late Gestation, Chanda L. Engel, H. H. Trey Patterson, Ron Haigh, Jason Johnson, Mindy Hubert, Brandi Perry, George A. Perry
South Dakota Beef Report, 2006
Dried distillers grains plus solubles (DDGS) contain a significant amount of both undegradable intake protein and fat, which have both been shown to increase reproductive performance when supplemented to heifers during gestation. The mechanisms leading to enhanced reproduction when fat or UIP are supplemented have not been fully defined. The objective of this experiment was to evaluate DDGS or soybean hulls (SBH) fed during the last trimester of gestation on circulating concentrations of growth hormone (GH) and insulin-like growth factor-I (IGF-I) and reproductive efficiency. Ninety-five crossbred heifers were grouped by expected calving date, BW, BCS, and randomly assigned to DDGS …
2006 South Dakota Beef Report, Department Of Animal And Range Sciences, South Dakota State University, Agricultural Experiment Station, South Dakota State University, Cooperative Extension Service, South Dakota State University
2006 South Dakota Beef Report, Department Of Animal And Range Sciences, South Dakota State University, Agricultural Experiment Station, South Dakota State University, Cooperative Extension Service, South Dakota State University
South Dakota Beef Report, 2006
This is the 2006 South Dakota Beef Report. The articles published in this report summarize many of the beef cattle research activities conducted at South Dakota State University during 2006. The articles in this report have many levels of application. Some information has immediate application for your farm, ranch, or agribusiness. The articles include information on nutrition, feed management, reproductive management, health, growth and development, and economics of the cattle and beef industry in South Dakota.
Effect Of Supplementing Distillers Grain Or Corn On Performance Of Cows Grazing Spring Pasture During The Breeding Season, Tyler A. Melroe, Richard J. Pruitt, George A. Perry, Jeffrey A. Clapper, Heather A. Werner
Effect Of Supplementing Distillers Grain Or Corn On Performance Of Cows Grazing Spring Pasture During The Breeding Season, Tyler A. Melroe, Richard J. Pruitt, George A. Perry, Jeffrey A. Clapper, Heather A. Werner
South Dakota Beef Report, 2006
In a 2 yr study 180 lactating cows (2 to 10 yr old) grazing pastures dominated by smooth bromegrass and Kentucky bluegrass near Brookings, SD received 3 supplemental treatments for 48 d beginning in mid May. Cows received 4.6 lb DM of dried distillers grains with solubles (DDGS), 4.3 lb corn DM, or no supplement daily, starting approximately 14 d prior to the start of the breeding season. Cows were bled weekly for 5 wk beginning 1 wk prior to the beginning of the treatment period. Serum was analyzed for progesterone concentration to determine the onset of cyclicity. While supplemented …
The Jackrabbit Dairy Review, Vikram Mistry
The Jackrabbit Dairy Review, Vikram Mistry
The Jackrabbit Dairy & Food Review
No abstract provided.