Animal Sciences Commons^™

Operation Villagization And Its Implications For Wildlife Conservation In South-Western Serengeti, Tanzania: The Case Of Maswa Game Reserve, Ca. 1970s–1980s, Beny Nampesya, Hezron Kangalawe

Journal of Humanities and Social Sciences

Operation Villagization in Tanzania attracted the attention of many scholars, including historians, inside and outside the country. This is because it is one of the major policies in the history of Tanzania that affected many sectors. Despite the extensive scope of these studies, minimal attention has been devoted to exploring the connections between this operation and wildlife conservation. The current article uses the case of the Maswa Game Reserve (MGR) to examine the extent to which the operation affected wildlife resources conservation. In essence, it argues that poor implementation of the operation led to enormous encroachments in the MGR, which …

Oregon State Rank Assessment For Brandt's Cormorant (Phalacrocorax Penicillatus), Misty Nelson, Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for Brandt's cormorant (Phalacrocorax penicillatus) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Western Toad (Anaxyrus Boreas), Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for Western toad (Anaxyrus boreas) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Golden Eagle (Aquila Chrysaetos), Misty Nelson, Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for Golden Eagle (Aquila chrysaetos) using NatureServe methodology, 2024.

Oregon State Rank Assessment For Black-Backed Woodpecker (Picoides Arcticus), Eleanor P. Gaines

Institute for Natural Resources Publications

Oregon state conservation status assessment for Black-backed woodpecker (Picoides arcticus) using NatureServe methodology, 2024.

Puberty Classifications In Beef Heifers Are Moderately To Highly Heritable And Associated With Candidate Genes Related To Cyclicity And Timing Of Puberty, Melanie K. Hess, Anteneh Mersha, Sadie S. Ference, Sarah R. Nafziger, Jessica A. Keane, Anna M. Fuller, Scott G. Kurz, Courtney M. Sutton, Matthew L. Spangler, Jessica Lynn Petersen, Andrea S. Cupp

Department of Animal Science: Faculty Publications

Introduction: Pubertal attainment is critical to reproductive longevity in heifers. Previously, four heifer pubertal classifications were identified according to attainment of blood plasma progesterone concentrations > 1 ng/ml: 1) Early; 2) Typical; 3) Start-Stop; and 4) Non-Cycling. Early and Typical heifers initiated and maintained cyclicity, Start-Stop started and then stopped cyclicity and Non- Cycling never initiated cyclicity. Start-Stop heifers segregated into Start-Stop- Discontinuous (SSD) or Start-Stop-Start (SSS), with SSD having similar phenotypes to Non-Cycling and SSS to Typical heifers. We hypothesized that these pubertal classifications are heritable, and loci associated with pubertal classifications could be identified by genome wide association …

Concepts In Animal Parasitology, Scott L. Gardner, Sue Ann Gardner

Zea E-Books Collection

Note that this version of the textbook has been superceded by the one updated in 2026, available at the UNL Pressbooks site.

The hard copy version that is for sale at lulu.com is the old version.

"This is a textbook covering concepts in animal parasitology. It is meant to be used by students, teachers, professors, researchers, and members of the public who are interested in learning about animal parasite biology, systematics, taxonomy, zoogeography, and ecology. The primary intended audience is upper-level undergraduate or graduate university students who have knowledge of basic biology and, particularly, basic animal biology. (863 pages, …

Phototaxis In The Terrestrial Isopod: A Mechanism For Investigating Invertebrate Learning And Memory, Christopher Buzzelli, Jessica Kent, Chelsea Pawlak, Kevin P. Kaut

Journal of Neuropsychology and Behavioral Processes

Isopods readily explore new environments and typically prefer contexts with lower levels of illumination (i.e., negative phototaxis). In the first of two behavioral experiments reported here, the ability of isopods to discriminate between light and dark nesting regions was confirmed, although evidence suggests an initial ‘instinctive’ draw toward a darker context. Extending these findings to experiment 2, isopods were trained against their negatively phototaxic tendency and had to exit a darkened start chamber in order to locate nesting material in a brighter chamber. Within-session improvements in latency to enter the nesting region were noted across training trials, coupled with evidence …

Malnutrition Alters Protein Expression Of Kndy Neuropeptides In The Arcuate Nucleus Of Mature Ewes, Jennifer F. Thorson, Ligia D. Prezotto

Department of Animal Science: Faculty Publications

The neuropeptides kisspeptin, neurokinin B, and dynorphin A are imperative for the pulsatile secretion of gonadotropin-releasing hormone and luteinizing hormone to ultimately regulate reproductive cyclicity. A population of neurons co-expressing these neuropeptides, KNDy neurons, within the arcuate nucleus of the hypothalamus (ARC) are positioned to integrate energy status from afferent neuronal and glial cells. We hypothesized that KNDyexpressing neurons in the ARC of mature ewes are influenced by energy balance. To test this hypothesis, ovary-intact, mature ewes were fed to lose, maintain, or gain body weight and hypothalamic tissue harvested during the luteal phase of the estrous cycle. Fluorescent, multiplex …

Deferred Grazing And Sheep At The Break Of Season In South West Western Australia, Department Of Primary Industries And Regional Development, Western Australia

Animal production and livestock factsheets

Grazing annual pastures in the first 12 days after germination can lower the productivity of pastures during winter by removing poorly rooted plants, and by reducing plant leaf area to sub-optimal levels. The Department of Primary Industries and Regional Development (DPIRD) recommends deferring grazing of pasture paddocks at the break-of-season until feed on offer is at least 500–800 kilograms of dry matter per hectare (kg DM/ha). At this level, pasture plants are likely to be firmly rooted and have sufficient leaf area to be productively grazed.

Histomorphological Evaluation Of Osteoreplacement With Germanium-Doped Calcium Phosphate Ceramics For Model Bone Defects In Rabbits, Tetiana Todosiuk, Mykhailo Rublenko, Valeriy Chemerovskiy, Nataliia Ulianchych, Volodymyr Kolomiiets

Turkish Journal of Veterinary & Animal Sciences

To give calcium phosphate ceramics osteoinductive properties, they are doped with silicon, germanium, zinc, and magnesium ions. The aim of this study was to evaluate the effects of doped and undoped calcium phosphate ceramics on reparative osteogenesis in rabbits. Twenty-four California white rabbits, aged 3 months and weighing 2.5 kg each, were used for the study. The rabbits were divided equally into experimental (n=12) and control (n=12) groups. In the experimental group, defects were replaced with granules of germanium-doped hydroxyapatite ceramics (HA/β-TCP/l-Ge–700), while in the control group, defects were filled with granules of unalloyed ceramics (HA/β-TCP–700). Subsequently, clinical and histological …

Features Of Lying Behavior Of Gazella Marica Fawns In Semicaptive Conditions, Adi̇l Uztemur, Abdülkadi̇r Orman

Turkish Journal of Veterinary & Animal Sciences

The lying behavior of Gazella marica fawns was investigated in the gazelle breeding station established to prevent the extinction of this species, whose numbers are decreasing continuously in the wild. There are significant differences between the lying duration in the bedding sites of different kinds (plant-based site, soil-based, side of a stone or rock). Gazella marica fawns were lying on one side of the body 50.23 min on average in the plant-based bed sites, 36.06 min in the soil-based places, and 38.14 min in the stone/ rock area. Gazella marica fawns from semicaptive conditions lied on one body side longer …

Application Of Some Artificial Intelligence Optimization Methods To Determine The Freshness Of Eggs, Hasan Alp Şahi̇n, Hasan Önder

Turkish Journal of Veterinary & Animal Sciences

Egg quality, can be divided into two groups as internal and external, is evaluated using various methods whether breaking eggs. Image processing makes digital images usable for various purposes such as image compression, image editing, object recognition, face recognition, medical imaging, and many other areas such as the automotive industry. This study aimed to determine the freshness of eggs using different artificial intelligence optimization methods with image processing without breaking the eggs. Artificial neural networks (ANNs), artificial bee colony, particle swarm optimization, and genetic algorithms were compared using classification coefficients. As a result of the study, it was determined that …

A One Health Approach To Enhancing Sars-Cov-2 Surveillance, Lauren C. Cybulska

Dissertations and Theses

Background

Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), the virus that causes coronavirus disease-2019 (COVID-19) in humans, can also infect domestic dogs (Canis lupus familiaris) and cats (Felis catus). Susceptibility and viral transmissibility in these species are concerns for public health due to the spillover risk to humans or other animals. This dissertation uses a One Health framework to explore key issues on this topic. We aim to identify gaps in understanding of SARS-CoV-2 in companion animals and investigate novel surveillance methods through human, animal, and environmental health perspectives.

Methods

Paper 1 provides an in-depth exploration of …

Influence Of Steroidal Implants And Zinc Sulfate Supplementation On Growth Performance, Trace Mineral Status, Circulating Metabolites, And Transcriptional Changes In Skeletal Muscle Of Feedlot Steers, Dathan T. Smerchek, Emma L. Rients, Amy M. Mclaughlin, Kara J. Thornton, Stephanie L. Hansen

Animal, Dairy, and Veterinary Science Faculty Publications

Angus-cross steers (n = 144; 362 kg ± 20.4) were used to determine the effect of Zn and steroidal implants on performance, trace mineral status, circulating metabolites, and transcriptional changes occurring in skeletal muscle. Steers (n = 6 per pen) were stratified by body weight (BW) in a 3 x 2 factorial. GrowSafe bunks recorded individual feed intake (steer as experimental unit; n = 24 per treatment). Dietary treatments (ZINC; eight pens per treatment) included supplemental Zn as ZnSO₄ at 1) 0 (analyzed 54 mg Zn/kg DM; Zn0); 2) 30 mg/kg DM ( …

Baseline Characterization Of Semen From Philippine Native Chickens: Banaba, Joloano And Paraoakan, Darcy Pamulaklakin, Carla Alilie Junsay, Consuelo Amor Estrella, Percival Sangel

The Philippine Agricultural Scientist

The study aimed to characterize and establish baseline data on the quantity and quality of fresh avian semen utilizing a sample of Philippine native roosters. Twenty-two heads each were acquired from breeds Banaba, Joloano, and Paraoakan. The baseline data analysis revealed significant variations in semen volume among different genetic groups, with Banaba displaying the highest volume, followed by Joloano and Paraoakan. Banaba also exhibited the highest semen pH value of 7.27 when compared to the other two genetic groups (P < 0.05). Across various genetic groups of native chickens, the majority of semen samples demonstrated a thick and creamy consistency and color (42.6%), followed by thin and creamy (32.9%), with a statistical significance of P < 0.05. Furthermore, variations in sperm concentration were observed among genetic groups, with Paraoakan having the highest sperm concentration, followed by Banaba and Joloano (P < 0.05). When the semen from Banaba and Joloano native roosters were extended in Ringer’s solution, it exhibited good motility, with more than 50% of spermatozoa in motion, even after six hours of extension. In contrast, the pooled extended semen from Paraoakan native roosters displayed poor motility, particularly after eight hours of extension (P < 0.05). The study also showed that storage temperatures did not significantly affect all the sperm quality parameters of Banaba and Joloano. However, for Paraoakan, samples stored at low temperatures of 5 – 10ºC had significantly higher percent motile and progressive sperm, and lower percent static sperm than those stored at room temperature (22 – 25ºC) (P < 0.05).

Geographic Distribution: Smilisca Baudinii (Mexican Treefrog). Usa: Florida: Escambia Co., Louis A. Somma, Justin K. Anto, Jakira A. Davis

Papers in Herpetology

Geographic distribution note for Smilisca baudinii, the Mexican treefrog, from Escambia County, Florida, United States.

The Nebraska Bird Review (June 2024) 92(2), Whole Issue

Nebraska Bird Review

Spring Field Report, March–May 2024, by W. Ross Silcock

The Early Years of the Nebraska Ornithologists’ Union: People and Publications, by Daniel W. Leger

NOU Spring Field Days and Annual Meeting, 125th Anniversary of the Nebraska Ornithologists’ Union, Birding Bowl Kickoff Weekend, Lincoln, May 3–5, 2024, by Janis Paseka

Subscription and Organization Information

The Mayfly Newsletter, Donna Giberson

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.

The Effect Of Probiotic Supplementation On Serum Metabolite Concentrations In Young Holstein Heifers, Emily G. Meissner

Master's Theses

The objective of this trial was to evaluate the effect of a multi-strain probiotic on serum concentrations of selected metabolites in young calves. Holstein heifers (n = 112) from a commercial dairy were enrolled within 48 h of birth and placed into individual hutches. Calves were weaned at 60 d of age and remained in their hutches until 90 d of age, when they were moved to group housing. Calves were placed into 2 treatment groups: 1) control and 2) B. subtilis, B. lichenformis, L. animalis, and P. freudenreichii probiotic (Bovamine Dairy Plus, Chr. Hansen, Milwaukee, WI). Control calves received …

Fisheries Occasional Publication No.147 - Aquaculture Development Zones – Policy Position Relating To Permitted Alternative Species, Department Of Primary Industries And Regional Development, Western Australia

Fisheries Occasional Publications

The purpose of this policy is to set out considerations relevant to the assessment of aquaculture proposals within Aquaculture Development Zones (ADZ) for species distinct from the group of species for which the ADZ was initially established (Alternative Species).

Simulated Transport Of Silver Therapon (Leiopotherapon Plumbeus) Fingerlings At Different Durations And Loading Densities: Effects On Survival And Water Quality, Frolan A. Aya, Reylan C. Gutierrez, Luis Maria Garcia

The Philippine Agricultural Scientist

The silver therapon, Leiopotherapon plumbeus, is a new species for aquaculture. However, information on the optimal conditions for the transport of this species for grow-out culture needs to be established to avoid stress and unnecessary mortalities. This study examined the effects of duration of transport and loading density on survival and water quality during simulated transport of silver therapon. Hatchery-produced fingerlings [1.30 ± 0.34 g body weight (BW); 44.30 ± 3.77 mm total length (TL)] were held in double-layered oxygenated plastic bags at three transport durations (6 h, 9 h, and 12 h) and densities (40, 80, and 120 …

Identifying Dietary Timing Of Organic Trace Minerals To Reduce The Incidence Of Osteomyelitis Lameness In Broiler Chickens Using The Aerosol Transmission Model, Khawla Alharbi, Andi Asnayanti, Anh Dang Trieu Do, Ruvindu Perera, Layla Al-Mitib, Abdulkarim Shwani, Marco A. Rebollo, Michael T. Kidd, Adnan Ali Khalaf Alrubaye

Poultry Science Faculty Publications and Presentations

Our prior research demonstrated a 20% to 25% reduction in bacterial chondronecrosis with osteomyelitis (BCO) lameness in broilers with organic Zn, Mn, and Cu (Availa^® ZMC) supplementation. Expanding on this, we investigated the optimal timing for Availa^® ZMC feeding to mitigate BCO lameness and reduce feed additive costs in the poultry industry. In this study, we compared the application of 0.15% Availa^® ZMC for 56 days, the first 28 days, and the last 28 days. The experimental design was a randomized block design involving 1560 one-day-old chicks distributed across two wire-floor pens as BCO source infection and …

Applied Research Note: Microbial Composition Of The Biofilm Of Poultry Drinking Water System, T. T. Ogundipe, S. Beitia, T. Obe

Poultry Science Faculty Publications and Presentations

Ensuring good water quality is one of the key management strategies to promote optimal broiler health and performance. A few studies have assessed the microbial status of drinking water for poultry, but there is insufficient information on biofilm in the drinking water lines within the poultry housing facilities. The buildup of microbes in the drinking water system could potentially result in biofilm formation which eventually deteriorates water quality. Hence, in this preliminary study, we sought to evaluate biofilm formation in the drinking water lines of selected broiler houses and characterize their microbial composition. Three random houses in each of 5 …

Applied Research Note: Microbial Composition Of The Biofilm Of Poultry Drinking Water System, T. T. Ogundipe, S. Beitia, T. Obe

Poultry Science Faculty Publications and Presentations

Ensuring good water quality is one of the key management strategies to promote optimal broiler health and performance. A few studies have assessed the microbial status of drinking water for poultry, but there is insufficient information on biofilm in the drinking water lines within the poultry housing facilities. The buildup of microbes in the drinking water system could potentially result in biofilm formation which eventually deteriorates water quality. Hence, in this preliminary study, we sought to evaluate biofilm formation in the drinking water lines of selected broiler houses and characterize their microbial composition. Three random houses in each of 5 …

Assessing The Impact Of Spirulina Platensis And Organic Trace Minerals On The Incidence Of Bacterial Chondronecrosis With Osteomyelitis Lameness In Broilers Using An Aerosol Transmission Model, Andi Asnayanti, Amer Hasan, Khawla Alharbi, Intisar Abdullah Hassan, Walter Bottje, Samuel J. Rochell, Marco A. Rebollo, Michael T. Kidd, Adnan A.K. Alrubaye

Poultry Science Faculty Publications and Presentations

Spirulina platensis is an emerging poultry diet source due to its essential nutrition and bioactive ingredients. Spirulina microalgae confers beneficial effects on broiler's growth performance, immune response, and antioxidant activity. We investigated the effect of Spirulina platensis on BCO lameness, one of the most driving factors for economic and animal well-being concerns in the poultry industry. Additionally, supplementation of Availa ZMC containing organic trace minerals – zinc, manganese, and copper – was shown to alleviate lameness by 20 to 25%. We hypothesized that pairing microalgae and organic trace minerals might confer a synergistic effect in reducing BCO. A 2 × …

Titration Of Dietary Histidine During A 22-To 42-Day Feeding Phase Following A 0-To 21-Day Feeding Phase With Variable Dietary Histidine Concentrations In Female Cobb 500 Broilers, Kenneth B. Nelson, Matheus F. Costa, Savannah C. Wells-Crofton, Shivaram K. Rao, Garrett J. Mullenix, Craig W. Maynard, Michael T. Kidd

Poultry Science Faculty Publications and Presentations

Further reductions of crude protein in broiler diets may cause essential amino acids traditionally considered to be supplied at adequate levels to become limiting. Requirement data for histidine are currently scarce and this amino acid is uniquely able to be stored within the body. Thus, the objectives of this study were to evaluate female Cobb 500 broiler growth performance and carcass characteristic responsiveness to increasing digestible histidine to digestible lysine ratios (dHis:dLys) during a 22- to 42-day feeding period and determine if dHis:dLys in preceding feeds influence the former responses. Starter diets were formulated to contain dHis:dLys of 33% or …

Animal Science Research Report 2024 (Complete Report), Department Of Animal Science

Animal Science Research Report 2024

This is the complete proceedings of the South Dakota State University, Department of Animal Science Research Report 2024. The report contains research on ruminant, non-ruminant, and meat science.

Male Song Structure Predicts Offspring Recruitment To The Breeding Population In A Migratory Bird, Rachael A. Disciullo, Anna M. Forsman, Robert R. Fitak, John Hunt, Pirmin Nietlisbach, Charles F. Thompson, Scott K. Sakaluk

Faculty Publications – Biological Sciences

Bird song is a classic example of a sexually selected trait, but much of the work relating individual song components to fitness has not accounted for song typically being composed of multiple, often-correlated components, necessitating a multivariate approach. We explored the role of sexual selection in shaping the complex male song of house wrens (Troglodytes aedon) by simultaneously relating its multiple components to fitness using multivariate selection analysis, which is widely used in insect and anuran studies but not in birds. The analysis revealed significant variation in the form and strength of selection acting on song across different …

Nou Spring Field Days And Annual Meeting, 125th Anniversary Of The Nebraska Ornithologists’ Union, Birding Bowl Kickoff Weekend, Lincoln, Mary 3–5, 2024, Janis Paseka

Nebraska Bird Review

The NOU Annual Meeting and Spring Field Days were held in Lincoln on May 3-5, 2024, with 80 in attendance. This year is the 125th anniversary of the founding of the Nebraska Ornithologists’ Union, and this meeting also served as the kickoff of the Nebraska Birding Bowl.

Field trips were led by Olivia DaRugna, Thane Dinsdale, Joe Gubanyi, Thomas Labedz, Jason St. Sauver, T. J. Walker, and Michael Willison. Destinations included Wilderness Park, Bluestem Lake SRA, Killdeer WMA, Cottontail WMA, Pawnee Lake SRA, Branched Oak Lake, Butler County Prairie-Chicken lek, Marsh Wren Saline Wetland, Spring Creek Prairie, and Conestoga Lake …