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2020

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Articles 841 - 870 of 1315

Full-Text Articles in Animal Sciences

Demonstrating Mate Choice Copying In Spiders Requires Further Research, R. Tucker Gilman, Kasey Fowler-Finn, Eileen A. Hebets Jan 2020

Demonstrating Mate Choice Copying In Spiders Requires Further Research, R. Tucker Gilman, Kasey Fowler-Finn, Eileen A. Hebets

Eileen Hebets Publications

Mate choice copying—when individuals learn to prefer mates or mate types that have been chosen by others—can influence trait evo-lution and speciation (Varela et al. 2018; Dion et al. 2019). Most examples of mate choice copying are from fish, birds, and mammals including humans (Varela et al. 2018). However, 2 invertebrate examples—fruit flies and wolf spiders—have been used to argue that the phenomenon may be phylogenetically widespread, and perhaps the rule rather than the exception in nature (Varela et al. 2018). Here, we revisit the evidence for mate choice copying in wolf spiders (Fowler-Finn et al. 2015) in light of …


Wpa News 113 (2020), World Pheasant Association Jan 2020

Wpa News 113 (2020), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Winter 2020), number 113

Published by the World Pheasant Association


Effects Of Slope Upon Hind Limb Kinematics In Chukar Partridge (Alectoris Chukar), Anna T. Kenney Jan 2020

Effects Of Slope Upon Hind Limb Kinematics In Chukar Partridge (Alectoris Chukar), Anna T. Kenney

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Ground dwelling birds must scale all kinds of complex terrain in order to survive in their natural environments. For instance, Alectoris chukar live on steep hillsides with slopes of up to 60° or 172.3% slope. We undertook the present study to improve understanding of how birds successfully traverse such complex terrain. Using a high speed camera, we analyzed the hind limb kinematics of chukars during normal locomotion on a 10° and 35° incline, decline, and level slope. We compared the data collected from the video recordings, which we had used to identify and digitize the bony landmarks, between all conditions. …


A New Genus Of Baetidae (Insecta, Ephemeroptera) From Southeast Asia, Thomas Kaltenbach, Jhoana M. Garces, Jean-Luc Gattolliat Jan 2020

A New Genus Of Baetidae (Insecta, Ephemeroptera) From Southeast Asia, Thomas Kaltenbach, Jhoana M. Garces, Jean-Luc Gattolliat

Biology Faculty Publications

A new genus of Baetidae is described from Southeast Asia, Procerobaetis gen. nov. It has a wide distribution reaching from Indonesia (Sumatra) to the Philippines. Two new species are described from Indonesia, P. leptobranchius gen. et sp. nov. and P. petersorum gen. et sp. nov., and one new species from the Philippines, P. freitagi gen. et sp. nov. Procerobaetis gen. nov. is characterized by having seven pairs of elongate, apically pointed gills. At least gills I and II are very slender with strongly extended points, which is unique in Baetidae. Similar gills were described from Leptophlebiidae. Procerobaetis gen. nov. is …


Effects Of Non-Commercial Thinning On Great Horned Owls On Turnbull National Wildlife Refuge, Christopher P. Brady Jan 2020

Effects Of Non-Commercial Thinning On Great Horned Owls On Turnbull National Wildlife Refuge, Christopher P. Brady

EWU Masters Thesis Collection

To sustain forest health, increase species diversity and reduce wildfire events in the ponderosa pine (Pinus ponderosa) forests of at Turnbull National Wildlife Refuge (TNWR) managers have implemented a variety of approaches including prescribed burning and non-commercial thinning. The impacts of thinning on owl species diversity and habitat occupancy have not been studied in these ponderosa pine forests. My study had the following objectives 1) compare forest stand metrics between treatment plots, 2) compare owl species richness between treatment plots, 3) examine if occupancy and detection patterns of Great Horned Owls varied with forest condition and season, respectively, and 4) …


Letter From The Dean, Deacue Fields Jan 2020

Letter From The Dean, Deacue Fields

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Lamb Wool Shedding Is A Good Predictor Of Ewe Wool Shedding, Napoleón Vargas Jurado, Larry Kuehn, Ronald M. Lewis Jan 2020

Lamb Wool Shedding Is A Good Predictor Of Ewe Wool Shedding, Napoleón Vargas Jurado, Larry Kuehn, Ronald M. Lewis

Department of Animal Science: Faculty Publications

Interest in reducing labour costs due to shearing has led to development of breed types that shed their wool naturally. Selection at young ages can facilitate response. Reliability of predictions of adult from lamb wool shedding (WS) is thus key in the design of breeding programmes to increase shedding. Our objectives were to estimate heritabilities and genetic relationships between WS measured once in lambs and repeatedly in ewes and to assess the accuracy of lamb WS EBV to predict ewe WS EBV based on a multi‐trait threshold or a repeatability model. Data were 4,971 lamb and 3,335 ewe WS records …


Effect Of Ammoniation And Harvest Method On Waste And Consumption Of Corn Residue Bales Fed To Cows In A Round Bale Feeder, Ashley C. Conway, Zachary E. Carlson, Fred H. Hilscher Jr, J. C. Macdonald, Terry J. Klopfenstein, Mary E. Drewnoski Jan 2020

Effect Of Ammoniation And Harvest Method On Waste And Consumption Of Corn Residue Bales Fed To Cows In A Round Bale Feeder, Ashley C. Conway, Zachary E. Carlson, Fred H. Hilscher Jr, J. C. Macdonald, Terry J. Klopfenstein, Mary E. Drewnoski

Department of Animal Science: Faculty Publications

To determine the effects of harvest method and ammoniation (3.7% of dry matter) on consumption and waste of baled corn residue, a 6 × 6 Latin square with a 3 × 2 factorial treatment structure was conducted. Six treatments consisted of either nonammoniated or ammoniated residue, harvested one of three ways: conventional rake and bale (CONV), New Holland Cornrower with two rows of stem chopped into the windrow with tailings (2ROW), or EZBale system (EZB) with a disengaged combine spreader and tailings dropped in a windrow. Open cows were grouped by body weight to produce a light block of two …


The Effects Of 2 Genetic Lines On Spatial Distribution And Use And Preference Of Perch And Nest Area In An Aviary System, Sheila E. Scheideler, Pamela E. Eusebio Balcazar, K. Hanford Jan 2020

The Effects Of 2 Genetic Lines On Spatial Distribution And Use And Preference Of Perch And Nest Area In An Aviary System, Sheila E. Scheideler, Pamela E. Eusebio Balcazar, K. Hanford

Department of Animal Science: Faculty Publications

The objective of this trial was to evaluate spatial distribution, nest and perch usage, and preference of Lohmann Brown (BH) and Bovan White (WH) Leghorn hens raised in an aviary system. At 5 wk, 400 floor raised pullets, BH and WH strains, in equal numbers, were placed into 8 modified Big Dutchman Natura aviary units. Each aviary unit had 3 tiers with perches and an indoor litter area. At 25 wk, the number of birds was recorded by scan sampling every 4 h. The number of birds perching in each aviary unit was recorded every 4 h at 15, 25, …


Beef Cows With Atypical Estrous Cyclicity At Puberty Produced Calves With Deficits In Preweaning Muscling, Metabolic Indicators, And Myoblast Function But Not In Feedlot Performance, Rebecca M. Swanson, Rachel L. Gibbs, Caitlin Cadaret, Galen E. Erickson, Ty B. Schmidt, Andrea Cupp, Dustin T. Yates Jan 2020

Beef Cows With Atypical Estrous Cyclicity At Puberty Produced Calves With Deficits In Preweaning Muscling, Metabolic Indicators, And Myoblast Function But Not In Feedlot Performance, Rebecca M. Swanson, Rachel L. Gibbs, Caitlin Cadaret, Galen E. Erickson, Ty B. Schmidt, Andrea Cupp, Dustin T. Yates

Department of Animal Science: Faculty Publications

In cattle, age at puberty and number of estrous cycles prior to first breeding contribute to lifetime reproductive success (Perry et al., 1991). In our university beef herd, we have identified a subset of cows that exhibited irregular pubertal cyclicity patterns between weaning and their first breeding season, which we postulate is associated with high androstenedione in follicular fluid (Cupp et al., 2019). Cows with high androstenedione are subfertile but wean calves that average 17 kg heavier than the herd average (Summers et al., 2014). We hypothesized that this additional weight at weaning in their offspring is due to superior …


Deficits In Growth, Muscle Mass, And Body Composition Following Placental Insufficiency-Induced Intrauterine Growth Restriction Persisted In Lambs At 60 D Of Age But Were Improved By Daily Clenbuterol Supplementation, Rachel L. Gibbs, Rebecca M. Swanson, Joslyn K. Beard, Ty B. Schmidt, Jessica Lynn Petersen, Dustin T. Yates Jan 2020

Deficits In Growth, Muscle Mass, And Body Composition Following Placental Insufficiency-Induced Intrauterine Growth Restriction Persisted In Lambs At 60 D Of Age But Were Improved By Daily Clenbuterol Supplementation, Rachel L. Gibbs, Rebecca M. Swanson, Joslyn K. Beard, Ty B. Schmidt, Jessica Lynn Petersen, Dustin T. Yates

Department of Animal Science: Faculty Publications

Low birthweight in livestock results from stress-induced intrauterine growth restriction (IUGR; Yates et al., 2018). IUGR fetuses exhibit diminished muscle growth that persists in the neonatal stage, leading to asymmetric body composition and decreased weight gain (Cadaret et al., 2019). Ultimately, low birthweight diminishes yield and carcass merit at harvest (Greenwood et al., 2000), making effective postnatal treatment strategies to improve IUGR growth outcomes necessary. In this study, we examined the benefits of injecting the β2 agonist clenbuterol daily to target adrenergic adaptations that we previously observed in IUGR muscle (Posont et al., 2018; Yates et al., 2018). We hypothesized …


Beta-Adrenergic Agonists Increase Maximal Output Of Oxidative Phosphorylation In Bovine Satellite Cells, Renae L. Sieck, Leah K. Treffer, Martonio Ponte Viana, Oleh Khalimonchuk, Ty B. Schmidt, Dustin T. Yates, Jessica L. Petersen Jan 2020

Beta-Adrenergic Agonists Increase Maximal Output Of Oxidative Phosphorylation In Bovine Satellite Cells, Renae L. Sieck, Leah K. Treffer, Martonio Ponte Viana, Oleh Khalimonchuk, Ty B. Schmidt, Dustin T. Yates, Jessica L. Petersen

Department of Animal Science: Faculty Publications

Beta-adrenergic agonists (βAA), Ractopamine HCl (RH) and Zilpaterol HCl (ZH), are FDAapproved supplements utilized in pigs and cattle to improve growth performance, carcass weight, and longissimus muscle area (Arp et al., 2014; Lean et al., 2014). Previous studies within our group have focused on understanding molecular changes in skeletal muscle due to βAA supplementation. This work has shown that βAA supplementation increases glucose oxidation in muscle from thermoneutral and heat-stressed lambs (Barnes et al., 2019) and in rat skeletal muscle stimulated with ZH (Cadaret et al., 2017). Skeletal muscle transcriptomics of lambs supplemented ZH revealed upregulation of genes associated with …


Heat Stress And Β-Adrenergic Agonists Alter The Adipose Transcriptome And Fatty Acid Mobilization In Ruminant Livestock, Rachel R. Reith, Renae L. Sieck, Pablo C. Grijalva, Erin M. Duffy, Rebecca M. Swanson, Anna M. Fuller, Kristin A. Beede, Joslyn K. Beard, Duarte E. Diaz, Ty B. Schmidt, Dustin T. Yates, Jessica L. Petersen Jan 2020

Heat Stress And Β-Adrenergic Agonists Alter The Adipose Transcriptome And Fatty Acid Mobilization In Ruminant Livestock, Rachel R. Reith, Renae L. Sieck, Pablo C. Grijalva, Erin M. Duffy, Rebecca M. Swanson, Anna M. Fuller, Kristin A. Beede, Joslyn K. Beard, Duarte E. Diaz, Ty B. Schmidt, Dustin T. Yates, Jessica L. Petersen

Department of Animal Science: Faculty Publications

Growth and feed efficiency of cattle are improved by supplementation with the beta-adrenergic agonists (βAA), ractopamine hydrochloride (RH; β1AA) or zilpaterol hydrochloride (ZH; β2AA) (Elam et al., 2009). βAA supplementation alters adipose deposition by inhibiting fatty acid biosynthesis and promoting lipolysis of stored triacylglycerols into free fatty acids (FFAs) (Johnson et al., 2014). However, β2 adrenoceptors (βAR) desensitize with chronic activation (Re et al., 1997); supplementation is thus limited to the last 20 to 40 d of feeding.

The annual economic impact of heat stress (HS) has been estimated to exceed $2.4 billion (St-Pierre et …


Bovine Respiratory Disease Influences On Nutrition And Nutrient Metabolism, Clinton R. Krehbiel Jan 2020

Bovine Respiratory Disease Influences On Nutrition And Nutrient Metabolism, Clinton R. Krehbiel

Department of Animal Science: Faculty Publications

• Inflammation caused by bovine respiratory disease (BRD) continues to be one of the greatest challenges facing beef cattle producers and feedlot managers.

• BRD results in decreased intake, daily gain, and feed efficiency in feedlot calves, decreasing growth rate and increasing required days on feed.

• Morbidity caused by BRD has been associated with decreased hot carcass weight and poor carcass characteristics.

• Acute phase protein production in the liver, initiated by proinflammatory cytokines, may shift the priority for amino acid and energy use by the host animal during periods of sickness.

• Nutrient requirements for stressed calves seem …


Commercial Genetic Testing For Type 2 Polysaccharide Storage Myopathy And Myofibrillar Myopathy Does Not Correspond To A Histopathological Diagnosis, Stephanie J. Valberg, C. J. Finno, Marisa L. Henry, Melissa Schott, Deborah Velez-Irizarry, Sichong Peng, Erica C. Mckenzie, Jessica L. Petersen Jan 2020

Commercial Genetic Testing For Type 2 Polysaccharide Storage Myopathy And Myofibrillar Myopathy Does Not Correspond To A Histopathological Diagnosis, Stephanie J. Valberg, C. J. Finno, Marisa L. Henry, Melissa Schott, Deborah Velez-Irizarry, Sichong Peng, Erica C. Mckenzie, Jessica L. Petersen

Department of Animal Science: Faculty Publications

Background: Commercial genetic tests for type 2 polysaccharide storage myopathy (PSSM2) and myofibrillar myopathy (MFM) have not been validated by peer-review, and formal regulation of veterinary genetic testing is lacking.

Objectives: To compare genotype and allele frequencies of commercial test variants (P variants) in MYOT (P2; rs1138656462), FLNC (P3a; rs1139799323), FLNC (P3b; rs1142918816) and MYOZ3 (P4; rs1142544043) between Warmblood (WB) and Arabian (AR) horses diagnosed with PSSM2/MFM by muscle histopathology, and phenotyped breed-matched controls. To quantify variant frequency in public repositories of ancient and modern horse breeds.

Study design: Cross sectional using archived clinical material and publicly available data.

Methods: …


Differential Longitudinal Establishment Of Human Fecal Bacterial Communities In Germ-Free Porcine And Murine Models, Nirosh Aluthge, Wesley A. Tom, Alison Bartenslager, Thomas E. Burkey, Phillip S. Miller, Kelly D. Heath, Craig Kreikemeier-Bower, Hatem Kittana, Robert Schmaltz, Amanda Ramer-Tait, Samodha Fernando Jan 2020

Differential Longitudinal Establishment Of Human Fecal Bacterial Communities In Germ-Free Porcine And Murine Models, Nirosh Aluthge, Wesley A. Tom, Alison Bartenslager, Thomas E. Burkey, Phillip S. Miller, Kelly D. Heath, Craig Kreikemeier-Bower, Hatem Kittana, Robert Schmaltz, Amanda Ramer-Tait, Samodha Fernando

Department of Animal Science: Faculty Publications

The majority of microbiome studies focused on understanding mechanistic relationships between the host and the microbiota have used mice and other rodents as the model of choice. However, the domestic pig is a relevant model that is currently underutilized for human microbiome investigations. In this study, we performed a direct comparison of the engraftment of fecal bacterial communities from human donors between human microbiotaassociated (HMA) piglet and mouse models under identical dietary conditions. Analysis of 16S rRNA genes using amplicon sequence variants (ASVs) revealed that with the exception of early microbiota from infants, the more mature microbiotas tested established better …


Age Related Extracellular Matrix And Interstitial Cell Phenotype In Pulmonary Valves, Shaohua Wu, Vikas Kumar, Peng Xiao, Mitchell Kuss, Jung Yul Lim, Chittibabu Guda, Jonathan Butcher, Bin Duan Jan 2020

Age Related Extracellular Matrix And Interstitial Cell Phenotype In Pulmonary Valves, Shaohua Wu, Vikas Kumar, Peng Xiao, Mitchell Kuss, Jung Yul Lim, Chittibabu Guda, Jonathan Butcher, Bin Duan

Department of Animal Science: Faculty Publications

Heart valve disease is a common manifestation of cardiovascular disease and is a significant cause of cardiovascular morbidity and mortality worldwide. The pulmonary valve (PV) is of primary concern because of its involvement in common congenital heart defects, and the PV is usually the site for prosthetic replacement following a Ross operation. Although effects of age on valve matrix components and mechanical properties for aortic and mitral valves have been studied, very little is known about the age-related alterations that occur in the PV. In this study, we isolated PV leaflets from porcine hearts in different age groups (~ 4–6 …


Regional Variation In Ventral Body Color And Pattern In The Western Ratsnake, Pantherophis Obsoletus (Reptilia: Serpentes: Colubridae), In Arkansas, Stanley E. Trauth Jan 2020

Regional Variation In Ventral Body Color And Pattern In The Western Ratsnake, Pantherophis Obsoletus (Reptilia: Serpentes: Colubridae), In Arkansas, Stanley E. Trauth

Journal of the Arkansas Academy of Science

Pantherophis obsoletus, the Western Ratsnake (a.k.a., black ratsnake or chicken snake), is a large colubrid species widely distributed throughout the central and southcentral United States west of the Mississippi River (Powell et al. 2016). This species has received considerable attention with its early taxonomic history found in Neill (1949) and Dowling (1952) and its current phylogeographic status examined by Burbrink et al. (2000), Burbrink (2001), and Gibbs et al. (2006). Dorsal body color and pattern played an important role in resolving the early taxonomic issues within this ratsnake species complex, whereas mtDNA was utilized in the more recent phylogeographic analyses …


Impact Of Postweaning Management Strategies On Beef Carcass Characteristics And Meat Quality, Christina Elaine Bakker Jan 2020

Impact Of Postweaning Management Strategies On Beef Carcass Characteristics And Meat Quality, Christina Elaine Bakker

Electronic Theses and Dissertations

The overall objective of this dissertation was to determine the impact of selected post weaning management strategies on beef carcass characteristics and meat quality. The specific objectives were 1) determine the effect of a rumen-protected long chain fatty acids fed during finishing on live performance, serum fatty acid profile, carcass traits, and predicted carcass composition, and 2) determine effects of feeding brassica-based cover crops to cattle during backgrounding on live animal performance, carcass characteristics, tenderness, juiciness, and flavor of strip steaks, and case life of ground beef and strip steaks. Results from both objectives indicate post weaning management strategies do …


Cold-Water Prey Fish Monitoring And Ecology In Lake Oahe, Nicholas B. Kludt Jan 2020

Cold-Water Prey Fish Monitoring And Ecology In Lake Oahe, Nicholas B. Kludt

Electronic Theses and Dissertations

In Lake Oahe, a large mainstem Missouri river reservoir that spans 375 river kilometers in central North and South Dakota, naturalized Rainbow Smelt are the primary forage species for a regionally important Walleye Sander vitreus fishery. Walleye condition in Lake Oahe is highly correlated to Rainbow Smelt relative abundance through time, the latter species being typified by erratic abundance trends since accidental introduction in 1971. Cisco Coregonus artedii were introduced in the early 1990s to augment the cold-water prey base. We evaluated Lake Oahe cold-water prey base monitoring and dynamics through: 1.) a comparison of two hydroacoustic survey designs, 2.) …


Understanding How Agricultural Intensification Impacts Ring-Necked Pheasant Distribution And Survival In Eastern South Dakota, Hilary R. Kauth Jan 2020

Understanding How Agricultural Intensification Impacts Ring-Necked Pheasant Distribution And Survival In Eastern South Dakota, Hilary R. Kauth

Electronic Theses and Dissertations

Historically, pheasants (Phasianus colchicus) have thrived in South Dakota in conjunction with successful land retirement programs or early farming practices through the 1950s, which created interspersions of agriculture and native landscapes that were ideal for pheasants. Recently, the Prairie Pothole ecosystem has undergone rapid agroeconomic expansion, effectively reducing ideal interspersions of native prairie and cropland into agriculturally homogeneous landscapes. Indices of pheasant abundance have suggested persistent population declines since 2008, raising concerns regarding landscape suitability. Our goal was to understand how agriculture intensification impacts pheasant ecology. The objectives were to: 1) estimate overwinter hen probability of survival, resource …


Distribution, Density, Movement, And Support For Management Of Mountain Sucker, Pantosteus Jordani, In The Black Hills Of South Dakota, Seth J. Fopma Jan 2020

Distribution, Density, Movement, And Support For Management Of Mountain Sucker, Pantosteus Jordani, In The Black Hills Of South Dakota, Seth J. Fopma

Electronic Theses and Dissertations

Mountain Sucker, Pantosteus jordani, is a cold-water species native to the Intermountain West. Fringe populations of Mountain Sucker have experienced declines in recent decades. The population of Mountain Sucker found in the Black Hills of South Dakota represents the eastern fringe of the species’ native range. Recognized as both an indicator of biologic health and as a species of greatest conservation need in South Dakota, recent studies have suggested significant declines in both distribution and abundance. Despite the recent study of Mountain Sucker in the region, increased understanding of Mountain Sucker ecology is needed to effectively manage for the conservation …


Development Of Methods To Improve Lactose Recovery From Permeate And Drying Characteristics Of Greek Acid Whey, Venkateswarlu Sunkesula Jan 2020

Development Of Methods To Improve Lactose Recovery From Permeate And Drying Characteristics Of Greek Acid Whey, Venkateswarlu Sunkesula

Electronic Theses and Dissertations

Growth of higher protein dairy products and ingredients such as cheese, Greek yogurt, whey protein concentrates, and milk protein concentrates is limited by the amount of co-product generated and the ability to process them into value added ingredients. Finding value for all the co-products will help dairy industry to meet the growing demand for dairy protein products and ingredients. Commercial scale evaluation of new technologies for improving lactose crystallization and drying ability of Greek yogurt acid whey will help dairy industry to better utilize different dairy co-products. Commercially, lactose is manufactured from concentrated permeate by cooling and separating α-lactose monohydrate …


Influence Of Mink Predation On Brown Trout Survival And Size-Structure In Rapid Creek, South Dakota, Austin Galinat Jan 2020

Influence Of Mink Predation On Brown Trout Survival And Size-Structure In Rapid Creek, South Dakota, Austin Galinat

Electronic Theses and Dissertations

I compared movement, home range, habitat selection, and mortality among radio-tagged Brown Trout (Salmo trutta) at an American Mink (Neovison vison)-removal site, improved habitat site, and an undisturbed stream site in Rapid Creek, South Dakota. I observed high, post-surgery (> 26 days) survival rate (90%) of radio tagged Brown Trout. Average gross movement of Brown Trout was greater at the improved habitat site (127 m) compared to the mink removal (31 m) site, while average home range size (i.e., stream distance) among all three sites was not significantly different indicating strong site fidelity (125 to 200 m). Brown Trout movements …


Evaluating The Effects Of Yeast Cell Wall Component, Phytochemical Oil, And Vitamin E On Sow Antioxidant Status And Growth Performance Of Dam And Offspring, Lily P. Hernandez Jan 2020

Evaluating The Effects Of Yeast Cell Wall Component, Phytochemical Oil, And Vitamin E On Sow Antioxidant Status And Growth Performance Of Dam And Offspring, Lily P. Hernandez

Electronic Theses and Dissertations

Times of high metabolic activity in gestation and lactation, as well as periods of stress at weaning, can lead to greater incidences of oxidative stress in the dam and offspring during the suckling and post-weaning period. Oxidative stress is an imbalance between prooxidant molecules and the antioxidant defense system that can negatively impact growth and/or reproductive performance. The objective of this research was to evaluate the effectiveness of a yeast cell wall component (Citristim, ADM Nutrition, Quincy, IL), peppermint oil, and ɣ-tocopherol in gestation and lactation diets to alleviate the impact of oxidative stress on maternal reproductive and offspring growth …


Characterization Of Bison Finishing And Harvest Systems: Effects On Carcass And Meat Quality Characteristics, Jessica Janssen Jan 2020

Characterization Of Bison Finishing And Harvest Systems: Effects On Carcass And Meat Quality Characteristics, Jessica Janssen

Electronic Theses and Dissertations

The objectives of this thesis project were to 1) characterize the influence of finishing system (grain-finished vs. grass-finished) on carcass characteristics, meat quality, the nutritional composition, and consumer preference for bison meat 2) evaluate the effectiveness of beef camera grading technology on grain- and grass-finished bison carcass characteristics, and 3) characterize the influence harvest systems (on-ranch vs. commercial facilities) on animal stress response, carcass characteristics, meat quality, and consumer preference of bison heifers. For objectives 1 and 2: Grain- (n=108) and grass- (n=93) finished bison heifers were slaughtered at 28 mo of age, at approximately 20 h postmortem, carcass measurements …


Modification Of Plant Proteins And Their Potential Application As Fish Meal Replacements In Rainbow Trout Oncorhynchus Mykiss Feeds, Miran Jaza Hama Salh Jan 2020

Modification Of Plant Proteins And Their Potential Application As Fish Meal Replacements In Rainbow Trout Oncorhynchus Mykiss Feeds, Miran Jaza Hama Salh

Electronic Theses and Dissertations

Soybean meals (SBM) and its by-products are the most common plant feedstuffs that are used in feeds for a variety of fish species of fish over the last three decades due to high protein levels and good amino acid profile, in comparison with other plant protein sources. In the last two decades the production of soybean was around zero metric tons (Index, 2020). Barley is another plant protein that has been tested in some species diets. While barley is used in many areas such as brewing industry, animal feeding, human consumption, it is mainly used for animal feeding in Kurdistan. …


Impact Of Altering Lys : Energy Ratio During Gestation On Sow Productivity, Piglet Robustness, And Piglet Post-Wean Growth Performance, Tiffany C. Bruhn Jan 2020

Impact Of Altering Lys : Energy Ratio During Gestation On Sow Productivity, Piglet Robustness, And Piglet Post-Wean Growth Performance, Tiffany C. Bruhn

Electronic Theses and Dissertations

Across 4 breeding groups, 63 primiparous and multiparous females were blocked by parity, balanced by weight, then randomly assigned to one of 3 gestation feeding regimens: Control (CON), 1.50 g SID Lys/Mcal ME from d2-110 of gestation; Phase Feeding 1 (PF1), 1.50 g SID Lys/Mcal ME from d2-89 and 2.11 g SID Lys/Mcal ME from d 90-110 of gestation; Phase Feeding 2 (PF2), 1.25, 1.07, and 0.88g SID Lys/Mcal ME from d2-89 for gilts, parity 1, and parity 2+, respectively and 2.11 g SID Lys/Mcal ME from d90-110 of gestation over 2 reproductive cycles. During lactation, all sows received a …


Physiological Responses To Feeding A Yeast Culture Supplement To Transition Dairy Cows, Nathaly Ana Carpinelli Jan 2020

Physiological Responses To Feeding A Yeast Culture Supplement To Transition Dairy Cows, Nathaly Ana Carpinelli

Electronic Theses and Dissertations

The transition period is the dynamic stage in the lactation cycle, where the most metabolic changes can occur. The use of nutritional strategies, such as yeast culture, can help cows during the transition from pregnancy to early lactation, improving health and decreasing the incidence of metabolic disorders. The first objective of this research was to evaluate the effects of a commercial yeast culture product (YC; Cellerate Culture Classic HD, Phibro Animal Health, Teaneck, NJ) on performance, blood biomarkers, and rumen fermentation and bacterial population in dairy cows during the transition period through 50 days in milk (DIM). Overall, the results …


Single Droplet Drying Technology For The Optimization Of The Dairy Ingredients With Best Quality And Functionality, Hiral Narendrabhai Vora Jan 2020

Single Droplet Drying Technology For The Optimization Of The Dairy Ingredients With Best Quality And Functionality, Hiral Narendrabhai Vora

Electronic Theses and Dissertations

As a result of their extended shelf-life, dried dairy ingredients constitute a significant category produced for global markets. During the development of dairy ingredients, several drying trials are typically conducted to determine optimum drying conditions. The results of these trials can be critical in determining optimum dryer design. However, these trials can be expensive and time-consuming. An alternative that has recently been developed using a new technique called single droplet drying (SDD). The SDD technique involves a single droplet suspended on the tip of a glass filament, where changes in droplet diameter, mass, and temperature are measured during drying. SDD …