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Full-Text Articles in Life Sciences

The Effects Of Trace Mineral Supplementation On Performance, Health, And Carcass Quality Of At-Risk Mineral Deficient Feedlot Cattle, Tevan J. Brady May 2021

The Effects Of Trace Mineral Supplementation On Performance, Health, And Carcass Quality Of At-Risk Mineral Deficient Feedlot Cattle, Tevan J. Brady

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Morbidity in feedlot cattle due to disease is a common economical loss for feedlot producers. Utah is not typically considered a ‘feedlot state’, but there are several producers in the southern part of the state that specialize in receiving at-risk cattle. These cattle are at-risk because they are coming from areas known to be mineral deficient. Areas such as the western US, are known to be deficient in several trace minerals important in immune response. Therefore, it is critical that producers have an adequate plan to decrease the negative effects that this has on economic viability of their beef operations, …


Effects Of Bovine Maternal Nutrient Restriction On Offspring Microrna And Mrna Expression And Muscle Fiber Type, Nikole E. Ineck May 2020

Effects Of Bovine Maternal Nutrient Restriction On Offspring Microrna And Mrna Expression And Muscle Fiber Type, Nikole E. Ineck

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

For producers in more temperate areas, such as the Intermountain West, poor nutrition during the second trimester of gestation is common due to seasonal changes in forage and nutrient availability. The majority of muscle fibers are formed and adipogenesis is initiated in the second trimester, making it a critical time for skeletal muscle and adipose development in beef cattle. However, the extent to which these changes persist in the offspring postnatally is unknown. In this study, maternal nutrition was restricted during the second trimester in order to analyze the effects of maternal nutrient restriction on offspring skeletal muscle growth. Offspring …


Relationships Of Beef Cattle Temperament With Feedlot Performance, Jeffrey James Briscoe May 2016

Relationships Of Beef Cattle Temperament With Feedlot Performance, Jeffrey James Briscoe

Undergraduate Honors Capstone Projects

This study determined relationships between beef cattle temperament and their feedlot performance. Thirty-five Angus cross-bred steers and heifers (18 steers and 17 heifers) were placed in the Utah State University feedlot to take part in the feed trial. Cattle temperament was measured by a chute score (CS, ranging from 1 = calm and not moving to 5 = rearing and violently struggling) and flight speed. Flight speed was measured by two observers to determine how long the animal took to travel 12 feet from the exit of the squeeze chute. Feedlot performance was assessed by body weight (BW) measurements, average …


Effects Of Growth-Promoting Technologies On Feedlot Performance And Carcass Characteristics Of Crossbred Heifers, S. M. Ebarb, K. J. Phelps, J. E. Axman, C. L. Van Bibber, J. S. Drouillard, J. M. Gonzalez Jan 2015

Effects Of Growth-Promoting Technologies On Feedlot Performance And Carcass Characteristics Of Crossbred Heifers, S. M. Ebarb, K. J. Phelps, J. E. Axman, C. L. Van Bibber, J. S. Drouillard, J. M. Gonzalez

Kansas Agricultural Experiment Station Research Reports

The use of growth-promoting technologies has become a common practice in the beef cattle industry as producers strive for efficient growth and greater lean deposition. Two common technologies include exogenous hormonal implants and beta-adrenergic agonists (β-AA). Combination implants containing estrogen and testosterone increase muscle mass by elevating protein synthesis and/or reducing protein degradation. The increase in protein synthesis allows the animal to produce more lean muscle tissue. Optaflexx (Elanco Animal Health, Greenfield, IN) is a popular β-AA that works as a repartitioning agent to redirect nutrients toward muscle deposition and away from adipose tissue production. The two technologies utilize separate …


Effects Of A Single Foot Rot Incident On Weight Performance Of Feedlot Steers, G. K. Tibbetts, T. M. Devin, D. Griffin, J. E. Keen, G. P. Rupp Jan 2006

Effects Of A Single Foot Rot Incident On Weight Performance Of Feedlot Steers, G. K. Tibbetts, T. M. Devin, D. Griffin, J. E. Keen, G. P. Rupp

Roman L. Hruska U.S. Meat Animal Research Center: Reports

Feedlot performance records from the U.S. Meat Animal Research Center feedlot for 1993 through 2000 were analyzed to evaluate the impact of foot rot on ADG and total days on feed. Records from the original pool of 36,755 bull, steer, and heifer calves were sorted so that only steers that had a single foot rot incidence and no other morbidities were included in the data set (7,100 steers). To roughly pattern these data to industry production practices, time of foot rot insult during feeding was divided into 3 production periods: starting (0 to 60 d), growing (61 to 120 d), …


Effects Of Pre- And Postpartum Nutrition On Reproduction In Spring Calving Cows And Calf Feedlot Performance, Leslie Aaron Stalker, Don C. Adams, Terry J. Klopfenstein, D. M. Feuz, Richard N. Funston Jan 2006

Effects Of Pre- And Postpartum Nutrition On Reproduction In Spring Calving Cows And Calf Feedlot Performance, Leslie Aaron Stalker, Don C. Adams, Terry J. Klopfenstein, D. M. Feuz, Richard N. Funston

Department of Animal Science: Faculty Publications

Crossbred, spring-calving cows (yr 1, n = 136; yr 2, n = 113; yr 3, n = 113) were used in a 3- yr experiment to evaluate the influence of supplemental protein prepartum and grazing subirrigated meadow postpartum on pregnancy rates and calf feedlot performance. A 2 × 2 factorial arrangement of treatments was used in a switchback design. From December 1 to February 28, cows grazed dormant upland range in 8 pastures (32 ± 2 ha each). The equivalent of 0.45 kg of supplement/cow per d (42% CP) was provided to half of the cows on a pasture basis …


Effects Of Feeding Varying Concentrations Of Dry Distiller's Grains With Solubles To Finishing Steers On Feedlot Performance, Nutrient Management And Odorant Emissions, Clint S. Benson, Cody L. Wright, Kent E. Tjardes, Richard E. Nicolai, Bradley D. Rops Jan 2005

Effects Of Feeding Varying Concentrations Of Dry Distiller's Grains With Solubles To Finishing Steers On Feedlot Performance, Nutrient Management And Odorant Emissions, Clint S. Benson, Cody L. Wright, Kent E. Tjardes, Richard E. Nicolai, Bradley D. Rops

South Dakota Beef Report, 2005

A study was conducted to determine the effects of feeding varying concentrations of dried distillers grains with solubles (DDGS) to finishing steers on feedlot performance, nutrient management, and odorant emissions. Prior to initiation of the trial, 192 steers (initial BW = 826 ± 18 lb) were blocked by receiving date, weighed, and randomly allotted to 16 dirt floor pens (48.2 ft x 113.8 ft; 5% slope). Pens were then randomly assigned to one of four dietary treatments. The control diet (CON) contained 82% cracked corn, 10% alfalfa hay, 4% molasses, 3.2% supplement, and 0.8% urea. In the remaining three treatment …


Effect Of A Yeast Culture Product (Yea-Sacc) On Feedlot Performance Of Yearling Cattle Self-Fed An All-Concentrate Finishing Diet, C. P. Birkelo, B. Rops Jan 1995

Effect Of A Yeast Culture Product (Yea-Sacc) On Feedlot Performance Of Yearling Cattle Self-Fed An All-Concentrate Finishing Diet, C. P. Birkelo, B. Rops

South Dakota Beef Report, 1995

Seventy-two yearling steers (initial weight 793 Ib) were allotted to 8 pens and self-fed a finishing diet consisting of 91 % whole shelled corn and 9% pelleted supplement without or with Yea-Sacc (11 g per day). Feed was provided to each pen approximately every 3days in amounts necessary to provide constant access during the 109-day trial. No treatment differences were detected for any of the feedlot performance or carcass characteristics measured. The occurrence of acidosis was high in both treatments as evidenced by the higher percentage of abscessed livers (40%). The feeding of Yea-Sacc did not have any beneficial effect …


South Dakota Retained Ownership Demonstration, J. J. Wagner, L. A. Senn, D. M. Feuz, D. L. Boggs, D.D. Zalesky, J. Krantz Jan 1995

South Dakota Retained Ownership Demonstration, J. J. Wagner, L. A. Senn, D. M. Feuz, D. L. Boggs, D.D. Zalesky, J. Krantz

South Dakota Beef Report, 1995

Three hundred seventy-four calves representing 44 cow-calf producers were consigned to a custom feedlot. Steer calves (254 head) consigned in October weighed 522 Ib initially, gained 2.91 1b per head daily, and averaged 1,100 Ib at slaughter after an average of 200 days on feed. Average cost of gain and profitability were $48.94 per cwt and -$12.03 per head, respectively. Steers consigned in January weighed 71 1 Ib initially, gained 3.07 Ib per head daily, and averaged 1,135 1b at slaughter after 141 days on feed. Average cost of gain and profitability were $43.59 per cwt and -$64.22 per head, …


Effect Of Corn Processing And Reconstitution In High Grain Diets On Feedlot Performance And Carcass Characteristics Of Steers And Heifers, M. A. Robbins, R. H. Pritchard Jan 1994

Effect Of Corn Processing And Reconstitution In High Grain Diets On Feedlot Performance And Carcass Characteristics Of Steers And Heifers, M. A. Robbins, R. H. Pritchard

South Dakota Beef Report, 1994

A 167-day feedlot trial was conducted to examine the effects of corn processing and reconstitution on growth performance and carcass characteristics of feedlot cattle. Initial weights of the continental cross steers (n = 95) and heifers (n =63) were 690 and 680 Ib, respectively. Diets were 84.5% corn, 7.0% ground grass hay, 4.9% soybean meal, and 3.6% liquid supplement. The grain component of the diet was either dry whole corn (WC), dry rolled corn (RC), corn reconstituted at least 12 h before rolling (RRC), or corn reconstituted with a commercial surfactant3 at least 12 hours before rolling (CRC). Monensin and …


South Dakota Retained Ownership Demonstration, J. J. Wagner, L. A. Senn, D. M. Feuz, D. L. Boggs, D.D. Zalesky, B. Knutson Jan 1994

South Dakota Retained Ownership Demonstration, J. J. Wagner, L. A. Senn, D. M. Feuz, D. L. Boggs, D.D. Zalesky, B. Knutson

South Dakota Beef Report, 1994

Seven hundred six calves representing 81 cow-calf producers were consigned to a custom feedlot. Steer calves (421 head) consigned in October weighed 562 Ib initially, gained 2.75 Ib per head daily, and averaged 1153 1b at slaughter after an average of 207 days on feed. Average cost of gain and profitability were $61.48 per cwt and -$86.61 per head, respectively. Steers consigned in January weighed 738 Ib initially, gained 3.36 Ib per head daily, and averaged 1,196 Ib at slaughter after 137 days on feed. Average cost of gain and profitability were $55.55 per cwt and 4123.1 1 per head, …


South Dakota Retained Ownership Demonstration, J. J. Wagner, D. M. Feuz, B. Knutson Jan 1993

South Dakota Retained Ownership Demonstration, J. J. Wagner, D. M. Feuz, B. Knutson

South Dakota Beef Report, 1993

Three hundred eighty-eight calves representirlg 59 cow-calf producers were consigned to a custom feedlot. Steer calves consigned in October weighed 601 Ib initially, gained 3.03 1b per head daily, and averaged 1148 Ib at slaughter after an average of 182 days on feed. Average cost of gain and profitability were $53.94 per cwt and $90.38 per head, respectively. Steers consigned in January weighed 775 Ib initially, gained 3.31 Ib per head daily, and averaged 1245 Ib at slaughter after 142 days on feed. Average cost of gain and profitability were $50.67 per cwt and $55.66 per head, respectively. Heifers consigned …


South Dakota Retained Ownership Demonstration, J. J. Wagner, T. B. Goehring, D. L. Boggs, L. W. Insley Jan 1992

South Dakota Retained Ownership Demonstration, J. J. Wagner, T. B. Goehring, D. L. Boggs, L. W. Insley

South Dakota Beef Report, 1992

Four hundred nineteen steer calves representing 57 cow-calf producers were consigned to a custom feedlot in mid-October. Cattle were fed in one of three pens. One pen of calves was fed a starter program for 20 days followed by a moderate roughage growing diet for 84 days before they were switched to a high energy finishing diet (TWO). The other two pens were fed a starter program for 20 days followed by a moderate roughage growing diet for 14 days before they were switched to a high energy finishing diet. Cattle were sorted into one of these two pens on …


South Dakota Retained Ownership Demonstration, J. J. Wagner, T. L. Goehring, D. L. Boggs, L. W. Insley Jan 1991

South Dakota Retained Ownership Demonstration, J. J. Wagner, T. L. Goehring, D. L. Boggs, L. W. Insley

South Dakota Beef Report, 1991

Three hundred forty-five steer calves representing 53 cow-calf producers were consigned to a custom feedlot in late October. Cattle were fed in one of two pens. One pen of calves received a moderate roughage growing diet for 39 days and then were switched to a high energy finishing diet (ACC). The other pen of calves received a moderate roughage growing diet for 109 days and then were switched to a high energy finishing diet (TWO). The ACC calves weighed 574 lb initially, gained 2.94 Ib per head daily and were slaughtered at 1147 Ib after an average of 196 days …


South Dakota Custom Feeding Program, J.J. Wagner Jan 1986

South Dakota Custom Feeding Program, J.J. Wagner

South Dakota Beef Report, 1986

Seventy-five preconditioned steer calves representing 14 different owners and a variety of breeds were placed on feed at Longacre Farms. Wentworth. South Dakota. in late November and early December. Average days on feed for the 15 groups of five head was 191 (range 181-2071. Average daily gain was 2.6 lb head per day (range 2.26-2.83). Feed efficiency was 8.2 lb dry matter per pound of gain. Feed cost averaged $35.53 per cwt. gain and nonfeed cost averaged $11.84 per cwt. gain. Average cost of gain excluding interest was $47.37 per cwt. (range 43.16-53.741. Average loss was $85.00 per head (range …