Life Sciences Commons^™

News Of The Department Of Animal Science, Department Of Animal Science

Animal Science Newsletters

No abstract provided.

News Of The Department Of Animal Science, Department Of Animal Science

Animal Science Newsletters

No abstract provided.

Consequences Of Hatch Phenology On Stages Of Fish Recruitment, David M. Bogner, Mark A. Kaemingk, Melissa R. Wuellner

Natural Resource Management Faculty Publications

Little is known about how hatch phenology (e.g., the start, peak, and duration of hatching) could influence subsequent recruitment of freshwater fishes into a population. We used two commonly sympatric fish species that exhibit different hatching phenologies to examine recruitment across multiple life stages. Nine yellow perch (Perca flavescens) and bluegill (Lepomis macrochirus) annual cohorts were sampled from 2004 through 2013 across larval, age-0, age-1, and age-2 life stages in a Nebraska (U.S.A.) Sandhill lake. Yellow perch hatched earlier in the season and displayed a more truncated hatch duration compared to bluegill. The timing of hatch influenced recruitment dynamics for …

Growing South Dakota (Summer 2016), College Of Agriculture &. Biological Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 2 Breaking New Ground SDSU Leads Nation With Precision Agriculture Initiative
[Page] 6 In The Driver's Seat Utility Vehicles Provide Students Hands-On Precision Ag Experience
[Page] 7 Introduction To Industry Travel To National Events Opens Opportunities For Students
[Page] 9 On The Ground SDSU Extension Specialists Have Vital Role In Bringing Data To Producers
[Page] 10 Curricula Collaboration SDSU Leaders Among Team Preparing Future Precision Ag Coursework
[Page] 12 Future Focus Ag 2020 Plan Prompts Important Reinvestments In State's Ag Experiment Station
[Page] 13 The Power Of Connections Connected Approach Helps Solve "Real-Life" Problems To Benefit Animal And …

Sdsu Calf Value Discovery 2013/2014 Summary Report, J.A. Walker, W.C. Rusche

Animal Science Faculty Publications

No abstract provided.

Sdsu Calf Value Discovery 2012/2013 Summary Report, J.A. Walker, W.C. Rusche

Animal Science Faculty Publications

No abstract provided.

Comparison Of Two Different Methods To Harvest Drought‐Damaged Corn, W.C. Rusche, J.A. Walker

Animal Science Faculty Publications

No abstract provided.

Influence Of Propionate Salt Levels On Young Cow Reproductive Performance, J.A. Walker, G.A. Perry, K.C. Olson

Animal Science Faculty Publications

No abstract provided.

Sdsu Calf Value Discovery 2011 Summary Report, J.A. Walker, B.P. Holland, C.L. Wright, W.C. Rusche

Animal Science Faculty Publications

No abstract provided.

Comparison Of Three Cidr Based Fixed-Time Ai Protocols For Beef Heifers, G.A. Perry, J.K. Grant, J.A. Walker, G.A. Bridges, S.G. Kruse, S. Bird, K. Heaton, R. Arias, S.L. Lake

Animal Science Faculty Publications

No abstract provided.

Scientific Literacy Of Equine Students Regarding The Use Of Antibiotics And Vaccines, Sara L. Mastellar, R.C. Bott

Animal Science Faculty Publications

There exists much misinformation about antibiotic and vaccine use. An understanding of these topics is important for the use of these tools for the best equine health outcomes. The purpose of this study was to evaluate students’ understanding of antibiotics and vaccines, identify learned misinformation, and establish baseline data. A survey was administered at the beginning of Equine Health & Disease (AS 213) and Horse Production (AS 365) at South Dakota State University during the spring 2016 semester. AS 213 is not a prerequisite for AS 365. Results of the survey suggest that students may come with some understanding of …

News Of The Department Of Animal Science, Department Of Animal Science

Animal Science Newsletters

No abstract provided.

Growing South Dakota (Winter 2016), College Of Agriculture &. Biological Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

This issue includes the 2015 SDSU Extension Annual Report.

[Page] 2 Contours Program Launched: Aims to Provide Insights & Prompt Discussions
[Page] 4 Local Momentum: Formation of State's First “Food Hub” Comes To Fruition [Page] 6 Spotlight On Soil Health: New Coalition Formed
[Page] 8 Exploring A Range Of Options: Youth Programs Cultivate Interest In Natural Resource Careers
[Page] 9 Profiles In Leadership: Our Mission Continues… Ensuring All Citizens Have Access To Education & Emerging Innovation
[Page] 10 Encouraging Animal Well-Being Workshops & Trainings Help Livestock Producers Become Better Stewards
[Page] 12 Wellness Wisdom: Variety Of Efforts Available To Encourage …

Assessing Temporal Genetic Variation In A Cougar Population: Influence Of Harvest And Neighboring Populations, Rebeca L. Juarez, Michael K. Schwartz, Kristine L. Pilgrim, Daniel J. Thompson, Stephanie A. Tucker, Joshua B. Smith, Jonathan A. Jenks

Natural Resource Management Faculty Publications

The geography of the Black Hills region of South Dakota and Wyoming may limit connectivity for many species. For species with large energetic demands and large home ranges or species at low densities this can create viability concerns. Carnivores in this region, such as cougars (Puma concolor), have the additive effect of natural and human-induced mortality; this may act to decrease long-term viability. In this study we set out to explore genetic diversity among cougar populations in the Black Hills and surrounding areas. Specifically, our objectives were to first compare genetic variation and effective number of breeders of …

Effect Of Grazing Prairie Dog—Colonized Rangeland On Cattle Nutrition And Performance: A Progress Report, Kenneth C. Olson, Christopher Schauer, Chanda Engel, Janna J. Kincheloe, Jameson R. Brennan, Ben L. Hauptman

Natural Resource Management Faculty Publications

On the Ground

• One objective of the ongoing Renewal on Standing Rock Reservation project is to evaluate the response of grazing steers to the level of prairie dog colonization on Northern Mixed Grass Prairie.
• We fenced four pastures to create an increasing gradient of a proportion of the pasture area colonized by prairie dogs. Pastures are stocked with yearling steers during each growing season.
• Comparing steer performance, Global Positioning System (GPS) locations of grazing, diet samples, and ingestive behavior at each proportion of the prairie dog colony per pasture allows prediction of the optimal proportion of colonization, which enables selection …

Growing South Dakota (Winter 2016), College Of Agriculture &. Biological Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

This issue includes the 2015 South Dakota Agricultural Experiment Station Annual Report.

[Page] 2 Director's Message
[Page] 3 Concentrating On Cattle: Researcher Studying Mechanics To Improve Reproduction Efficiency In Beef Cattle
[Page] 5 At The Forefront: SDSU Diagnostic Lab Scientists Sequence Avian Influenza Genome
[Page] 6 Seeking Superior Wheat: Breeder Using Extensive Genome Testing To Improve Winter Wheat Cultivars
[Page] 8 Profiles In Leadership: Plant And Fungi Interactions May Offer New Plant Production Possibilities
[Page] 9 Targeting Emerging Diseases: Plant Pathologists Working To Better Manage Soybean & Sunflower Diseases
[Page] 10 Compelling New Crop: Carinata Offers Potential For Crop Diversity, …

Dairy Digest 2016, South Dakota State University Dairy Club

Dairy Digest

No abstract provided.

A Physiological Assessment Of Wetland Habitats For Spring-Migrating Ducks In The Agricultural Landscapes Of The Southern Prairie Pothole Region, Adam K. Janke

Electronic Theses and Dissertations

The conversion of grassland and wetland ecosystems in the Prairie Pothole Region (PPR) has been a pervasive challenge for conservationists dating back to the early 1900s. The legacy of ever-increasing agricultural intensity in the southern portions of the PPR, including eastern South Dakota, has left many wetland ecosystems in a matrix of intensive agricultural production. With little surrounding nesting cover, these wetlands are thought to have limited potential for waterfowl reproduction but may still play an important role facilitating migration of waterfowl en route to northern breeding areas during spring. My research sought to understand the contributions of wetlands in …

Fish Ladders Designed For Drop Culverts And Central Stoneroller Ecology Across A Latitudinal Gradient, John Arthur Lorenzen

Electronic Theses and Dissertations

Stream connectivity is essential for the persistence of fish populations and maintenance of fish assemblage structure. Stream-road crossings can become barriers resulting in a loss of connectivity. Creating innovative tools for fisheries managers to allow fish passage through barrier stream-road crossings is important worldwide as climate change may force range shifts to stay within thermal requirements. Understanding how populations and metapopulations respond to climate is important as fisheries managers can use this information to make informed management decisions in regards to climate change and possible range shifts. Thus, we developed and tested a fish ladder to retrofit barrier stream-road crossings …

Survival, Abundance, And Relative Predation Of Wild Rainbow Trout In The Deerfield Reservoir System, South Dakota, Jeremy L. Kientz

Electronic Theses and Dissertations

Rainbow Trout Oncorhynchus mykiss are routinely stocked in Black Hills streams and reservoirs to enhance angling opportunities for the public, however in most cases, hatchery-reared Rainbow Trout do not successfully recruit to establish natural populations. One exception is the Deerfield Reservoir system, where it is estimated that up to 25% of the Rainbow Trout population consists of naturally produced, wild Rainbow Trout. While recruitment of wild Rainbow Trout to the Deerfield Reservoir fishery does occur, annual stockings of 12,000 hatchery Rainbow Trout have continued. In recent years, adipose fin clips were used to identify hatchery Rainbow Trout stocked into Deerfield …

Evaluation Of The Hypothalamic Kisspeptin System Throughout The Estrous Cycle And During The Attainment Of Puberty In Gilts, Eric Steven Jolitz

Electronic Theses and Dissertations

Kisspeptin has been demonstrated to affect reproductive cyclicity and the attainment of puberty in multiple species, presumably through its actions on GnRH and LH, as demonstrated in other species. Kisspeptin administration causes increased plasma concentrations of LH in pigs, sheep, and rats. Two experiments were conducted to evaluate 1) the hypothalamic kisspeptin system throughout various days of the estrous cycle and 2) the hypothalamic kisspeptin system during the peripubertal period in gilts. In experiment 1, 40 crossbred gilts (191 d, 121 kg) were administered an intramuscular injection of PG600. Twelve days after the administration of PG600, gilts were fed 15 …

Immune And Endocrine Modulations Associated With Enhanced Plant-Based Protein Diets Within Freshwater Fish Species, Timothy J. Bruce

Electronic Theses and Dissertations

The incorporation of bioprocessed soybean meals (BSBMs) as a protein replacement for marine-derived fish meal (MDFM) has gained momentum with the potential for aquafeed cost reduction, improved growth performance, and reducing exploitation on wild fish stocks. Further, potential health benefits and optimized production performance resulting from bioprocessed feed ingredients have led to research on the nutraceutical benefits of plant-based ingredients. A novel proprietary MBBM has been developed using a microbial conversion of carbohydrates into digestible protein and additional cellular components that have immunogenic potential. A series of five finfish feeding trials were conducted to investigate immunomodulation induced by the BSBM …

Effects Of Small Intestinal Starch Digestion And Dietary Lipid On Efficiency Of Nitrogen Use In Cattle, Ethan J. Blom

Electronic Theses and Dissertations

The objective of this research was to determine the effects of increases in energy available for gain from increased small intestinal starch digestion (SISD) and dietary lipid source and amount on the efficiency of N use in cattle. Five ruminally, duodenally, and ileally cannulated steers were placed in a 5 × 5 Latin square. Each received duodenal infusion of 1.5 ± 0.08 kg/d raw cornstarch and either 0, 30.9 ± 0.59, 62.4 ± 1.16, or 120.4 ± 3.39 g/d Glu, or 387.9 ± 17.47 g/d casein. Casein increased (P = 0.05) SISD. Similarly, greater duodenal Glu linearly (P = 0.02) …

The Effects Of Preovulatory Estradiol On The Uterine Environment And Conceptus Survival From Fertilization To Maternal Recognition Of Pregnancy, Emmalee J. Northrop

Electronic Theses and Dissertations

Preovulatory estradiol has been reported to play a critical role in pregnancy establishment and embryonic survival, but the mechanism by which estradiol exerts its effects has not been well characterized. The objective of this thesis is to determine the effects of preovulatory estradiol on the uterine environment and conceptus survival from fertilization to maternal recognition of pregnancy. Beef cows/heifers were synchronized with the CO-Synch protocol and AIed (d 0). Cows were classified by estrus expression (estrus and no estrus), and uteri were flushed to collect d16 conceptuses nonsurgically (Rep 1; n = 29), or following slaughter (Rep 2; n = …

The Jackrabbit Dairy Review, Vikram V. Mistry

The Jackrabbit Dairy & Food Review

No abstract provided.

Response Of Soil And Water Quality To Winter Manure Application From Small Agricultural Watersheds In South Dakota, Shikha Singh

Electronic Theses and Dissertations

The extreme winter conditions prevailing in the state of South Dakota make it difficult for the livestock producers to manage the manure generated at the farm. The South Dakota Department of Environmental and Natural Resources does not recommend manure application in the state during the winter months when the ground is frozen. Thus, producers are left with the options such as storing the manure over a longer period until summer or spreading on snow or frozen ground. Storing manure for longer duration leads to increased risks of concentrated spills into the streams. Thus, it is important to develop management strategies …

Assessing Freshwater Mussels (Bivalvia: Unionidae) In South Dakota And Identifying Drivers Of Assemblage Variation, Kaylee L. Faltys

Electronic Theses and Dissertations

Native freshwater mussels (Family: Unionidae) are among the most threatened groups of freshwater fauna on Earth. Approximately 35 species have gone extinct since the 1900s and 72% of remaining species are considered endangered, threatened, or species of special concern. Unionid research can begin by establishing species presence and distributions via surveys. Objectives for this study were to 1) implement the first comprehensive unionid survey for South Dakota to assess distribution, composition, and decline, 2) estimate assemblage density and determine local versus broad scale habitat drivers of assemblage variation, and 3) determine areas of unionid conservation priority in South Dakota. Mussels …

Effect Of Oil And Natural Gas Development On Survival And Health Of White-Tailed Deer In The Western Dakotas, Katherine L. Moratz

Electronic Theses and Dissertations

Oil and gas development in North Dakota has resulted in the need for information regarding how increased activity has affected white-tailed deer (Odocoileus virginianus) populations. We evaluated white-tailed deer ecology in response to energy development and hypothesized that oil and gas development would negatively affect adult and neonate white-tailed deer due to increased vehicle traffic and human-related effects. We captured and radio-collared adult female and neonate white-tailed deer across three study areas: Dunn County, North Dakota, an area influenced by energy development, and Grant County, North Dakota, and Perkins County, South Dakota, areas not impacted by energy development at this …

Winter Habitat Quality But Not Long- Distance Dispersal Influences Apparent Reproductive Success In A Migratory Bird, Clark S. Rushing, Peter P. Marra, Michele R. Dudash

Natural Resource Management Faculty Publications

Long- distance breeding and natal dispersal play central roles in many ecological and evolutionary processes, including gene flow, population dynamics, range expansion, and individual responses to fluctuating biotic and abiotic conditions. However, the relative contribution of long- distance dispersal to these processes depends on the ability of dispersing individuals to successfully reproduce in their new environment. Unfortunately, due to the difficulties associated with tracking dispersal in the field, relatively little is known about its reproductive consequences. Furthermore, because reproductive success is influenced by a variety of processes, disentangling the influence of each of these processes is critical to understanding the …

Growth Performance, Nutrient Utilization, And Metabolic Profile Of Dairy Heifers Fed Diets High In Distillers Grains With Different Forage To Concentrate Ratios, Angela Kristia Manthey

Electronic Theses and Dissertations

Two studies were conducted to evaluate the effect of limit-feeding heifers distillers grains with solubles (DDGS) with varying forage to concentrate ratios. The effects on growth, feed efficiency, rumen fermentation, nutrient digestibility, metabolic profile and onset of puberty, as well as post trial performance were investigated. First, a 16-wk feeding trial was conducted using 48 Holstein heifers to evaluate effects of dietary treatment on dry matter intake (DMI), average daily gain (ADG), growth performance, rumen fermentation, and nutrient digestibility. Treatments were 1) 30% DDGS, with the diet fed at 2.65% of body weight (BW) (30DG), 2) 40% DDGS, with the …