Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Dairy Science (260)
- Beef Science (142)
- Agriculture (119)
- Food Science (103)
- Aquaculture and Fisheries (90)
-
- Ecology and Evolutionary Biology (73)
- Meat Science (73)
- Medicine and Health Sciences (59)
- Veterinary Medicine (57)
- Physical Sciences and Mathematics (55)
- Environmental Sciences (54)
- Plant Sciences (53)
- Agricultural Economics (47)
- Natural Resources Management and Policy (34)
- Sheep and Goat Science (29)
- Terrestrial and Aquatic Ecology (29)
- Ornithology (22)
- Natural Resources and Conservation (21)
- Poultry or Avian Science (19)
- Biology (15)
- Zoology (13)
- Microbiology (11)
- Food Microbiology (6)
- Marine Biology (6)
- Nutrition (6)
- Physiology (6)
- Engineering (4)
- Other Animal Sciences (4)
- Keyword
-
- Dairy plant (51)
- Dairy processing (50)
- Dairy science (50)
- Beef (39)
- Food science (39)
-
- Cattle (30)
- Feedlot (30)
- Steers (26)
- Nutrition (23)
- South Dakota (19)
- Beef cattle (18)
- Economics (15)
- Management (14)
- Range (14)
- Digestibility (13)
- Growth performance (13)
- Breeding (12)
- Meats (12)
- Reproduction (12)
- Beef cow (11)
- Carcass (11)
- Meat science (10)
- Protein (10)
- Tenderness (10)
- Beef cows (9)
- Corn (9)
- Energy (9)
- Estradiol (9)
- Feedlot performance (9)
- Heifers (9)
- Publication Year
- Publication
-
- Electronic Theses and Dissertations (423)
- Natural Resource Management Faculty Publications (68)
- Little International "Little I" Agricultural Exposition Catalogs (51)
- Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences) (45)
- SDSU Beef Day 2020 Summary Publication (45)
-
- Dairy Digest (42)
- South Dakota Swine Research Report, 2001 (34)
- South Dakota Beef Report, 1986 (31)
- Animal Science Newsletters (28)
- Dairy Science and Food Science Faculty Publications: 2022 to Present (28)
- South Dakota Beef Report, 2005 (27)
- South Dakota Beef Report, 1991 (25)
- South Dakota Beef Report, 1995 (25)
- Animal Science Faculty Publications (24)
- South Dakota Beef Report, 1989 (23)
- South Dakota Beef Report, 1994 (22)
- South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1971 (22)
- SDSU Beef Day 2021 Summary Publication (21)
- SDSU Beef Day 2022 Summary Publication (21)
- South Dakota Beef Report, 1988 (21)
- South Dakota Beef Report, 1993 (21)
- South Dakota Beef Report, 1987 (19)
- South Dakota Beef Report, 2004 (19)
- The Jackrabbit Dairy & Food Review (18)
- South Dakota Beef Report, 1992 (17)
- South Dakota Beef Report, 1990 (16)
- South Dakota Beef Report, 2000 (16)
- South Dakota Beef Report, 2003 (16)
- South Dakota Beef Report, 2006 (16)
- South Dakota Beef Report, 2010 (16)
- Publication Type
- File Type
Articles 691 - 720 of 1392
Full-Text Articles in Animal Sciences
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.
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 …
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 …
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 …
The Jackrabbit Dairy Review, Vikram Mistry
The Jackrabbit Dairy Review, Vikram Mistry
The Jackrabbit Dairy & Food Review
No abstract provided.
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 …
Trained And Consumer Evaluations Of Five Different Beef Muscles With Or Without Ph Enhancement Using Ammonium Hydroxide, Tim Nath
The Journal of Undergraduate Research
Research was conducted in two phases: first to determine optimal pump percentage for each of five pH-enhanced beef muscles and then to determine the effect of pH enhancement on consumer acceptability of beef steaks. Phase I was a 5 x 4 factorial design with five muscles: longissimus lumborum (LL), gluteus medius (GM), triceps brachii (TB), biceps femoris (BF), and psoas major (PM) and four pump percentages: 0, 10, 20, and 30% to determine optimum pump percentage for each muscle using an 8- member trained sensory panel. Phase II was a 5 x 2 factorial design with the same five muscles …
Intramuscular Tenderness Variation Within Four Muscles Of The Beef Chuck, G.A. Searls, R.J. Maddock, D.M. Wulf
Intramuscular Tenderness Variation Within Four Muscles Of The Beef Chuck, G.A. Searls, R.J. Maddock, D.M. Wulf
Animal Science Faculty Publications
The i.m. tenderness variation was examined within four beef chuck muscles, the infraspinatus (IF), supraspinatus (SS), triceps brachii (TB), and serratus ventralis (SV). The IF, SS, TB, and SV muscles were cut into 2.5 cm thick steaks perpendicular to the long axis of the muscle. An identification tag was placed on each steak, consisting of a muscle identification number, steak number, and orientation of the steak. Steaks were vacuum-packaged and stored at −22°C until subsequent analysis. Steaks were thawed at 1°C and cooked on electric broilers to an internal temperature of 71°C. One core was removed from each 2.5-cm × …
Evaluating Consumer Acceptability And Willingness To Pay For Various Beef Chuck Muscles, A.C. Kukowski, R.J. Maddock, D.M. Wulf, G.L. Taylor
Evaluating Consumer Acceptability And Willingness To Pay For Various Beef Chuck Muscles, A.C. Kukowski, R.J. Maddock, D.M. Wulf, G.L. Taylor
Animal Science Faculty Publications
In-home consumer steak evaluations, followed by centralized laboratory-setting auctions, were used to determine consumer (n = 74 consumers) acceptability and willingness to pay for various beef chuck muscles. The infraspinatus (IF), serratus ventralis (SV), supraspinatus (SS), and triceps brachii (TB) from the beef chuck were evaluated against LM steaks from the rib to determine price and trait differentials. Muscles from USDA Choice, boneless, boxed-beef subprimals were aged 14 d, frozen, and cut into 2.5-cmthick steaks. Consumers received two steaks from each muscle for in-home evaluations of uncooked steak appearance and cooked steak palatability. After in-home evaluation of steaks, consumers participated …
Determining The Optimum Beef Longissimus Muscle Size For Retail Consumers, K.K. Sweeter, D.M. Wulf, R.J. Maddock
Determining The Optimum Beef Longissimus Muscle Size For Retail Consumers, K.K. Sweeter, D.M. Wulf, R.J. Maddock
Animal Science Faculty Publications
Research was conducted in two phases to determine the optimum beef LM size for retail consumers. In Phase I, 50 USDA Choice beef carcass sides were selected at a commercial packing plant and assigned to five different categories (10 sides per category) based on LM size: 61 to 68 cm2 (A), 70 to 78 cm2 (B), 80 to 90 cm2 (C), 92 to 103 cm2 (D), and 105 to 119 cm2 (E). Ribeye rolls were retrieved from all carcass sides. Steaks (2.5-cm thick; 14 per ribeye roll) were cut as needed and transported in groups of 35 steaks (seven per …
2005 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University
2005 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University
Little International "Little I" Agricultural Exposition Catalogs
No abstract provided.
Effect Of Ovulatory Follicle Size And Standing Estrus On Circulating Hormone Concentrations And Interval To Ovulation, George A. Perry
Effect Of Ovulatory Follicle Size And Standing Estrus On Circulating Hormone Concentrations And Interval To Ovulation, George A. Perry
South Dakota Beef Report, 2005
In postpartum cows, ovulatory follicle size at time of insemination (GnRH/TAI) influenced pregnancy rates following TAI, but had no effect on pregnancy rates when cows spontaneously ovulated. Furthermore, cows that exhibited estrus (± 24 h of GnRH/TAI) had higher pregnancy rates compared to cows not in estrus. The objective was to assess the relationship between ovulatory follicle size and estradiol concentrations, timing of the LH surge, timing of ovulation, and subsequent progesterone concentrations. Cows were synchronized with the CO-Synch (n = 64; induced ovulation) or the Select Synch (n = 20; spontaneous ovulation) protocol. Cows that exhibited estrus and were …
Effect Of Using Cidrs For Seven Days Before The Introduction Of Bulls On The Proportion Of Cows Conceiving Early In The Breeding Season, George A. Perry
Effect Of Using Cidrs For Seven Days Before The Introduction Of Bulls On The Proportion Of Cows Conceiving Early In The Breeding Season, George A. Perry
South Dakota Beef Report, 2005
Cows that conceive earlier in the breeding season wean calves that are older and heavier at weaning. Therefore, the objective of this study was to determine the ability of a CIDR to increase the proportion of cows that conceived early during a natural service breeding season. Two hundred twenty-two postpartum beef cows were allotted to one of two treatments: 1) cows were treated with a CIDR for 7 days before bulls were introduced (n = 100), 2) cows were not treated and served as a control (n = 122). Seven days before bulls were introduced to the herd CIDRs were …
Comparison Of The Efficiency And Accuracy Of Three Estrous Detection Methods To Indicate Ovulation In Beef Cattle, George A. Perry
Comparison Of The Efficiency And Accuracy Of Three Estrous Detection Methods To Indicate Ovulation In Beef Cattle, George A. Perry
South Dakota Beef Report, 2005
The ability to successfully artificially inseminate cattle requires determining the appropriate time to inseminate. Therefore, detection of standing estrus is a major factor in the success or failure of most artificial insemination programs. The objective of these experiments was to determine the efficiency and accuracy of three estrous detection methods (visual, penile deviated bull, and Estrus Alert estrous detection aids) to determine if animals were going to ovulate. Fifty-three postpartum beef cows were synchronized with an injection of gonadotropin releasing hormone (GnRH) followed by an injection of prostaglandin F2_ (PG) seven days later. Estrus was monitored for 72 hours following …
Spring Drought Effects On Rangeland Forage Yield From Clayey Ecological Sites In Western South Dakota, Alexander J. Smart, Roger N. Gates, Barry H. Dunn
Spring Drought Effects On Rangeland Forage Yield From Clayey Ecological Sites In Western South Dakota, Alexander J. Smart, Roger N. Gates, Barry H. Dunn
South Dakota Beef Report, 2005
Understanding the historical influence of seasonal precipitation, especially spring precipitation, and stocking rate on forage yield would be desirable for planning purposes. The objectives of this study were to examine the historical precipitation pattern and how it influenced forage yield on pastures that were stocked at light, moderate, and heavy stocking rates for 15 years at the Cottonwood Range and Livestock Research Station in western South Dakota. Weather data from 1909 to 2004 at the station were analyzed to determine the frequency of occurrence of below (≤75 of mean), normal, and above normal (>125% of mean) spring precipitation (April, …
Sod Suppression Techniques For Legume Interseeding, Alexander J. Smart, Vance N. Owens, Dick Pruitt
Sod Suppression Techniques For Legume Interseeding, Alexander J. Smart, Vance N. Owens, Dick Pruitt
South Dakota Beef Report, 2005
Sod suppression is necessary for successful establishment of legumes interseeded into existing pasture; however such techniques vary in their effectiveness, cost, and management. Sod suppression experiments for legume interseeding into cool-season pasture were conducted at South Dakota State University’s Cow-Calf Unit located near Brookings, SD in 2003 to 2005. We evaluated (i) spring burn, (ii) field cultivator or disk, (iii) herbicide, (iv) heavy fall and spring graze, and (v) a control with no sod suppression. Legume species were alfalfa, birdsfoot trefoil, and kura clover. Sod suppression techniques enhanced the success of legume interseeding. In this study, the grazing equaled or …
Effect Of Grazing, Mowing, Or Herbicide On Leafy Spurge Control, Kelly W. Bruns, Alexander J. Smart
Effect Of Grazing, Mowing, Or Herbicide On Leafy Spurge Control, Kelly W. Bruns, Alexander J. Smart
South Dakota Beef Report, 2005
Leafy spurge (euphorbia esula L.) is an herbaceous perennial which is deep rooted and can reproduce by seeds and rhizomes. First introduced into North America in the 1800’s from Europe, it now covers 25 states in the USA and several provinces in Canada. It is a major concern in North Dakota, South Dakota, Wyoming, Montana, and Nebraska. Leafy spurge is considered a noxious weed that is extremely competitive, establishing itself in pastureland and roadsides. Bangsund et al. (1997) estimated that by 2005, uncontrolled leafy spurge acres would reach 18.5 million in the Northern Great Plains. The cost of leafy spurge …
Intravenous Ghrelin Infusion Affects Plasma Growth Hormone Concentrations, Dry Matter Disappearance, And Length Of Time Spent Feeding, Aimee E. Wertz-Lutz, Robbi H. Pritchard, Joseph A. Daniel, Jeff A. Clapper
Intravenous Ghrelin Infusion Affects Plasma Growth Hormone Concentrations, Dry Matter Disappearance, And Length Of Time Spent Feeding, Aimee E. Wertz-Lutz, Robbi H. Pritchard, Joseph A. Daniel, Jeff A. Clapper
South Dakota Beef Report, 2005
Six steers (915 ± 37.8 kg) were used in a crossover design to determine the effects of intravenous infusion of bovine ghrelin (BGR) on plasma growth hormone (GH) concentrations, length of time spent feeding, and dry matter disappearance per unit of metabolic weight. Steers were fed individually once daily (0800 h) and allowed to consume ad libitum until 2000 h when feed was removed. Daily feed allotment was sufficient to result in ≥ 10% feed refusal. Serial blood samples were collected from steers fitted with an indwelling jugular catheter at 15-min intervals from 0600 h through 1800 h. Harvested plasma …
Effect Of Feeding Schedule On Tympanic Temperature Of Steer Calves During Winter, Simone M. Holt, Robbi H. Pritchard
Effect Of Feeding Schedule On Tympanic Temperature Of Steer Calves During Winter, Simone M. Holt, Robbi H. Pritchard
South Dakota Beef Report, 2005
Angus steer calves (n=135) were used in a 55d feedlot growing study to investigate the effects of feeding schedule on tympanic temperature response when limit feeding. Steers were fed a high moisture ear corn diet (58 Mcal/cwt NEg) at 0900h (AM), 1500h (PM) or 50% at 0900h and 50% at 1500h (SPLIT) to allow for 2.50lb ADG. Climatic data were collected at 30 min intervals throughout the study via an on site automated weather station. Tympanic temperatures (TT) were collected every 30 min (5 steers/trt) for 5d (d44 to d48). Mean ambient temperature during the 5d TT collection period was …
Effect Of High-Sulfate Water On Trace Mineral Status Of Beef Steers, Cody L. Wright, Hubert H. Patterson
Effect Of High-Sulfate Water On Trace Mineral Status Of Beef Steers, Cody L. Wright, Hubert H. Patterson
South Dakota Beef Report, 2005
Two experiments were conducted to determine the effect of high-sulfate water on the performance, health, and mineral status of growing steers. The first experiment was conducted from June 20 to September 12, 2001, at the South Dakota State University (SDSU) Cottonwood Range and Livestock Research Station. Eighty-one crossbred steers (initial BW = 700 lb) were stratified by weight and randomly assigned to 12 dry-lot pens (6 or 7 steers/pen). Pens were then randomly assigned to one of three water quality treatments: 1) rural water (404 ppm sulfate), 2) well water (3087 ppm sulfate), and 3) stock dam water (3947ppm sulfate). …