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Genetic Variants In The Sirt6 Transcriptional Regulatory Region Affect Gene Activity And Carcass Quality Traits In Indigenous Chinese Beef Cattle (Bos Taurus), Lin-sheng Gui, Sayed Haidar Abbas Raza, Matthew Garcia, Yong-gang Sun, Irfan Ullah, Yin-cang Han 2018 Qinghai University

Genetic Variants In The Sirt6 Transcriptional Regulatory Region Affect Gene Activity And Carcass Quality Traits In Indigenous Chinese Beef Cattle (Bos Taurus), Lin-Sheng Gui, Sayed Haidar Abbas Raza, Matthew Garcia, Yong-Gang Sun, Irfan Ullah, Yin-Cang Han

Animal, Dairy, and Veterinary Science Faculty Publications

Background: The aim of this study was to analyze potential influences of polymorphisms within the regulatory region of the bovine SIRT6 gene on carcass quality traits. Expression analyses suggested that SIRT6 gene is predominately expressed in kidney, compared with other tissues. In 535 indigenous Chinese beef cattle, two novel single nucleotide polymorphisms (SNPs) were identified within the promoter region of the SIRT6 gene.

Results: Association analysis indicated that G allele of the c.-1100 A > G had a positive effect on fat deposition, and the Hap4/4 diplotype had more favourable results than other dipoltypes with respect to the evaluation ...


Giltner Brothers - Eminence, Kentucky (Sc 3264), Manuscripts & Folklife Archives 2018 Western Kentucky University

Giltner Brothers - Eminence, Kentucky (Sc 3264), Manuscripts & Folklife Archives

MSS Finding Aids

Finding aid only for Manuscripts Small Collection 3264. Certificates and associated correspondence relating to the sale of a Polled Hereford bull, “Plutocrat 5th,” to Charles Settle, Springfield, Kentucky, by Giltner Brothers Kentucky Herefords, Eminence, Kentucky. Includes Certificates of Entry for the bull’s pedigree and a letter with information on the Giltner Brothers herd.


Evaluation Of Growth Promoting Implant Strategies And Days On Feed On Finishing Heifer Performance And Evaluation Of Optimal Reimplant Times For Finishing Heifers And Steers, Caitlin Ohnoutka 2018 University of Nebraska–Lincoln

Evaluation Of Growth Promoting Implant Strategies And Days On Feed On Finishing Heifer Performance And Evaluation Of Optimal Reimplant Times For Finishing Heifers And Steers, Caitlin Ohnoutka

Theses and Dissertations in Animal Science

Two experiments evaluated the effects of delayed, long-acting coated implants or uncoated implants to non-implanted heifers fed for constant or varying days on feed. In Exp. 1, heifers were implanted with either Revalor-XH on d 1, Revalor-200 on d 1, Revalor-XR on d 1, or Revalor-200 on d 70 compared to non-implanted control heifers when fed for an average of 198 d. In Exp. 2, heifers were implanted with Revalor-200 on d 1 and reimplanted with Revalor-200 on d 100, Revalor-XH on d 1, or not implanted and fed for different days on feed: 151, 165, 179, or 193. Implanting ...


Impact Of Shade On Performance And Heat Stress Of Finishing Cattle And Pooled Analysis Of Individually Fed Finishing Trials, Brett A. Melton 2018 University of Nebraska-Lincoln

Impact Of Shade On Performance And Heat Stress Of Finishing Cattle And Pooled Analysis Of Individually Fed Finishing Trials, Brett A. Melton

Theses and Dissertations in Animal Science

A commercial feedyard trial in Eastern Nebraska evaluated the effect of shade vs no shade on cattle performance, ear temperature, and panting scores. No differences in overall performance (final BW, DMI, ADG, and G:F) or carcass characteristics (HCW, 12th rib fat thickness, marbling, LM area, and calculated YG) were observed. Cattle that were provided shade had lower panting scores and ear temperatures, and greater DMI, compared to cattle that had no shade during heat events. Also, a treatment by hour interaction for movement of cattle occurred for one of the heat events. In comparison, the cool event had ...


Effect Of Yeast Supplementation During Various Stages Of Beef Production, Elizabeth Palmer 2018 University of Arkansas, Fayetteville

Effect Of Yeast Supplementation During Various Stages Of Beef Production, Elizabeth Palmer

Theses and Dissertations

Supplemental dietary yeast products are beneficial during times of stress. Calves experience increased levels of stress during birth, weaning, and the post-weaning receiving period. Therefore, 3 experiments were conducted to determine how yeast supplementation affects growth performance and health during this time. In experiment 1, 2 truckloads of highly stressed calves (n = 175; initial body weight [BW] = 226 ± 24.5 kg) were assigned randomly to 1 of 3 treatments; unsupplemented control, or supplementation with 2 commercial yeast products (Y1 and Y2). Average daily gain (ADG) was not different (P = 0.99) during the 28 d receiving period; nor was there ...


Investigation Of Bacterial Taxa As Biomarkers Of Fescue Toxicosis And Heat Stress In Grazing Beef Cows, Sarah Katherine Chewning 2018 University of Arkansas, Fayetteville

Investigation Of Bacterial Taxa As Biomarkers Of Fescue Toxicosis And Heat Stress In Grazing Beef Cows, Sarah Katherine Chewning

Theses and Dissertations

Fescue toxicosis in grazing beef cattle is caused by consumption of Ergot alkaloids associated with tall fescue (toxic fescue) and is responsible for substantial economic loss to the U.S. beef industry. Cattle consuming toxic fescue suffer adverse physiological responses, such as: hyperthermia, increased respiration rate (RR), poor reproduction and growth performance. Other adverse responses to fescue toxins include the retention of a winter hair coat and vasoconstriction in the extremities, which can lead to tissue necrosis. Identifying cattle with reduced susceptibility to fescue toxins would allow for efficient use of fescue pastures; thus, the objectives of this thesis was ...


Effect Of Tannin-Containing Legume Hays On Enteric Methane Emissions And Nitrogen Partitioning In Beef Cattle, Elizabeth K. Stewart 2018 Utah State University

Effect Of Tannin-Containing Legume Hays On Enteric Methane Emissions And Nitrogen Partitioning In Beef Cattle, Elizabeth K. Stewart

All Graduate Theses and Dissertations

Cattle are responsible for greenhouse gas emissions such as carbon dioxide, methane and nitrous oxide. In particular, the cow-calf phase of production accounts for approximately 80 percent of the total beef production system greenhouse gas emissions. Tannins are chemical compounds found in certain forages and they have the potential to help reduce these negative environmental impacts. Thus, given that the cow-calf phase often relies on feeding hay, feeding tannin-containing hays may represent a significant mitigation practice.

With my MS program, I sought to explore whether tannin-containing hays fed to mother cows and heifers influence methane and nitrogen emissions relative to ...


U.S. Consumers’ Perception, Intention, And Purchase Behavior Of Grass-Fed Beef, Elizabeth K. Crandall 2018 Utah State University

U.S. Consumers’ Perception, Intention, And Purchase Behavior Of Grass-Fed Beef, Elizabeth K. Crandall

All Graduate Theses and Dissertations

The purpose of this research study was to compile regional profiles of the consumers who intend to consume grass-fed beef in the U.S. and to create marketing strategies that would assist producers in marketing their product to consumers. The researcher sent an online survey to a panel of 484 consumers across the U.S. to learn about their perceptions of and intention to purchase grass-fed beef.

Respondents had a weak, positive attitude toward purchasing grass-fed beef but had low knowledge of production practices. These consumers had a desire to eat healthier; however, they wanted meat that was priced right ...


Identifying Breed Effects For Cow Mature Weight, Madeline J. Zimmermann 2018 University of Nebraska-Lincoln

Identifying Breed Effects For Cow Mature Weight, Madeline J. Zimmermann

Theses and Dissertations in Animal Science

Mature weight (MWT) in beef cattle has increased over the past 30 yr. In general, larger cows are costlier to maintain than smaller cows, and their profitability depends on their production environment. A wide range of beef production environments exist in the United States. There are also a variety of beef cattle breeds that can be chosen and mated to create a type of cow which will be optimally suited to excel in a given environment. However, there remains a need for tools allowing effective comparison among breeds to facilitate such decision making. Unfortunately, estimated progeny differences (EPD) for MWT ...


Radical Social Ecology As Deep Pragmatism: A Call To The Abolition Of Systemic Dissonance And The Minimization Of Entropic Chaos, Arielle Brender 2018 Fordham University

Radical Social Ecology As Deep Pragmatism: A Call To The Abolition Of Systemic Dissonance And The Minimization Of Entropic Chaos, Arielle Brender

Student Theses 2015-Present

This paper aims to shed light on the dissonance caused by the superimposition of Dominant Human Systems on Natural Systems. I highlight the synthetic nature of Dominant Human Systems as egoic and linguistic phenomenon manufactured by a mere portion of the human population, which renders them inherently oppressive unto peoples and landscapes whose wisdom were barred from the design process. In pursuing a radical pragmatic approach to mending the simultaneous oppression and destruction of the human being and the earth, I highlight the necessity of minimizing entropic chaos caused by excess energy expenditure, an essential feature of systems that aim ...


Corn Residue Grazing As A Component Of Semi-Confined Cow-Calf Production And The Effects Of Post-Weaning Management On Feedlot Performance, Shelby E. Gardine 2018 University of Nebraska-Lincoln

Corn Residue Grazing As A Component Of Semi-Confined Cow-Calf Production And The Effects Of Post-Weaning Management On Feedlot Performance, Shelby E. Gardine

Theses and Dissertations in Animal Science

Grazing corn residue can be a valuable alternative to harvested winter feed in a cow-calf production enterprise. The objectives of the first study were to: 1) determine the sample size needed to accurately estimate yield of corn grain and residue and 2) evaluate changes in residue quality throughout the fall/winter and spring-grazing seasons. Results suggest that 6-10 plants serve as a representative sample for grain yield while 7- 10 plants are needed for a representative sample of residue yield. In vitro OM digestibility was greatest at the beginning of the fall and spring grazing seasons and declined over time ...


Evaluation Of Alpha Amylase Containing Corn On Finishing Cattle Performance And Digestibilty, Melissa L. Jolly-Breithaupt 2018 University of Nebraska Lincoln

Evaluation Of Alpha Amylase Containing Corn On Finishing Cattle Performance And Digestibilty, Melissa L. Jolly-Breithaupt

Theses and Dissertations in Animal Science

One digestion and four finishing trials were conducted to evaluate the effect of a new corn hybrid containing an α-amylase trait, Syngenta Enogen Feed Corn (SYT-EFC) on site and extent of digestion, ruminal fermentation parameters, and feedlot performance. Experiments utilized corn containing the enzymatic gene compared to controls, the near isoline parental corn (NEG) or commercially available corn grain (CON), processed as dry-rolled corn (DRC) or high moisture corn (HMC) in diets with dry [distillers grains plus solubles (DGS)] or wet (Sweet Bran) milling byproducts. The corn grain of the experimental diets were fed as the sole grain source, comprising ...


In-Vitro Digestibility And Gas Production Of Wheat Middlings, Solvent Extracted Cottonseed Meal, Soyhulls, And Corn Gluten Feed And The Effects Of Monensin On In-Vitro Digestibility And Gas Production, Dustin W. DeVore 2018 Missouri State University

In-Vitro Digestibility And Gas Production Of Wheat Middlings, Solvent Extracted Cottonseed Meal, Soyhulls, And Corn Gluten Feed And The Effects Of Monensin On In-Vitro Digestibility And Gas Production, Dustin W. Devore

MSU Graduate Theses

This study was designed to study the in-vitro digestibility and in-vitro total gas production of corn gluten feed, wheat middlings, solvent extracted cottonseed meal, and soyhulls in multi parous steers. Evaluation of the effects of monensin on in-vitro digestibility and in-vitro total overall gas production of a commercially available complete feed was also studied Feedstuffs were ground through a Wiley mill to ensure uniform samples and were added to digestion jars in a completely randomized design. Rumen fluid was collected from a Bos taurus steer via a ruminal cannula. To ensure consistent digesta material the steer was fed a uniform ...


Alternative Feeding Strategies For Growing Cattle Grazing Endophyte-Infected Tall Fescue During The Summer, Kerri A. Johnson 2018 Missouri State University

Alternative Feeding Strategies For Growing Cattle Grazing Endophyte-Infected Tall Fescue During The Summer, Kerri A. Johnson

MSU Graduate Theses

Two experiments were conducted to determine animal performance of alternative feeding strategies to heifers grazing endophyte-infected tall fescue during summer months. In Experiment 1, 40 Limousin heifers (261± 40kg initial BW) were stratified by weight and assigned to either a spring harvested tall fescue silage diet or grazing endophyte-infected tall fescue pasture with grain supplement having either natural or artificial shade for 80 days. In Experiment 2, 40 Limousin heifers (277 ± 44kg initial BW) were stratified by weight and assigned to either a traditional grain supplement or feather-meal supplement (rumen bypass arginine supplement) with natural or artificial shade while grazing ...


Prebiotic And Probiotic Influence On Beef Calves Immunity, Robert Keener, Yasuhiro Kobayashi, Mike Stoppel, Mariah Beikman, Shaylee Flax, Brittany Starkey 2018 Fort Hays State University

Prebiotic And Probiotic Influence On Beef Calves Immunity, Robert Keener, Yasuhiro Kobayashi, Mike Stoppel, Mariah Beikman, Shaylee Flax, Brittany Starkey

John Heinrichs Scholarly and Creative Activities Day (SACAD)

Statistical trends existed for differences in IgG levels between treatment groups. Despite the trends, all IgG were in a physiologically normal range. When comparing the combination of prebiotic and probiotic to the other additives, as seen in Table 1, Figures 3, and 4 the control ration provided a higher IgG concentration. Future experiments should include additional replications. It is possible that the expected outcome was not achieved due to influence affiliated with calf age, vaccination history, and environmental effects.


Construction Of A Pen-Scale Methane Collection System And Dietary Strategies For Methane Mitigation From Growing And Finishing Cattle, Thomas Winders 2018 University of Nebraska - Lincoln

Construction Of A Pen-Scale Methane Collection System And Dietary Strategies For Methane Mitigation From Growing And Finishing Cattle, Thomas Winders

Theses and Dissertations in Animal Science

Methane production from ruminants has been researched for many years because it has a global warming potential 25x that of carbon dioxide, meaning that mitigating smaller amounts of methane can have a large environmental impact. Research has focused on individual animal methane measurements, but the literature lack in industry-scale measurements. For that reason, the methane barn was built to evaluate dietary strategies on pens of cattle rather than on individual animals. In order to test the methane barn capabilities, an experiment designed to produce differences in methane production was conducted. Cattle received the same growing diet, at either ad-libitum access ...


A Student Hosted Cattle Sale As An Approach To Experiential Learning, Wade Lang, Courtney Biles 2018 Stephen F Austin State University

A Student Hosted Cattle Sale As An Approach To Experiential Learning, Wade Lang, Courtney Biles

Undergraduate Research Conference

OBJECTIVE: The objective of this study was to determine if a student hosted cattle sale resulted in a beneficial learning experience and if a 30-day reflection period would change student perspective.


Supplementation And Reproductive Strategies For Beef Females As Part Of A May-Calving Herd In The Nebraska Sandhills, Alicia Caitlin Lansford 2018 University of Nebraska-Lincoln

Supplementation And Reproductive Strategies For Beef Females As Part Of A May-Calving Herd In The Nebraska Sandhills, Alicia Caitlin Lansford

Theses and Dissertations in Animal Science

The objective of these 4 studies was to evaluate the effects of management decisions on reproductive performance of beef females. Experiment 1 evaluated the efficacy of a novel s.c. prostaglandin F2a injection on estrus synchronization and pregnancy success in yearling beef heifers. Heifers receiving a 2 mL s.c. injection of Lutalyse HighCon had similar estrus response and pregnancy rates compared to 5 mL Lutalyse i.m. within 2 different estrus synchronization programs. In experiment 2, May-calving heifers and primiparous cows were allotted to receive either no supplementation or supplement (0.45 or 0.91 kg/d ...


Using 3d Models And Virtual Reality To Foster Learning Of Carcass Anatomy, Renae Sieck 2018 University of Nebraska - Lincoln

Using 3d Models And Virtual Reality To Foster Learning Of Carcass Anatomy, Renae Sieck

UCARE Research Products

In meat science and carcass anatomy, an often-debated topic is the methodology educators should follow for effective and efficient learning of carcass anatomy among students. Many traditional learning environments utilize monolithic methods for teaching anatomy that fail to engage students or pedagogically enhance their cognitive development to the fullest potential. Access is also limited because of the need for specialized facilities’ and equipment. We are interested in understanding and measuring the success of learning tools such as Virtual Reality (VR) and 3D Visualization in student learning. Our study’s results would be useful to indicate if student attitudes and student ...


The Use Of Grape By-Products As A Nutrient Rich Cattle Feed, Zachary Christman 2018 University of Nebraska - Lincoln

The Use Of Grape By-Products As A Nutrient Rich Cattle Feed, Zachary Christman

Theses, Dissertations, and Student Research in Agronomy and Horticulture

In this article you will learn about how to use the grape stems, skins and pulp that are generated by the wine industry. Ruminant animals such as cattle can digest this inexpensive yet nutrient rich material. The complete process from wine press to cattle feed is covered in this article. The historical background of using grape by-products and methods to preserve this food source is also presented.


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