Animal Sciences Commons^™

Statistical And Machine Learning Approaches To Describe Factors Affecting Preweaning Mortality Of Piglets, Md Towfiqur Rahman, Tami M. Brown-Brandl, Gary A. Rohrer, Sudhendu R. Sharma, Vamsi Manthena, Yeyin Shi

Department of Agricultural and Biological Systems Engineering: Faculty Publications

High preweaning mortality (PWM) rates for piglets are a significant concern for the worldwide pork industries, causing economic loss and well-being issues. This study focused on identifying the factors affecting PWM, overlays, and predicting PWM using historical production data with statistical and machine learning models. Data were collected from 1,982 litters from the United States Meat Animal Research Center, Nebraska, over the years 2016 to 2021. Sows were housed in a farrowing building with three rooms, each with 20 farrowing crates, and taken care of by well-trained animal caretakers. A generalized linear model was used to analyze the various sow, …

Effect Of Exogenous Melatonin On Metabolic Profile And Reproductive Performance In Undernourished Suckling Merino Ewes In The Early Postpartum Period, Bariş Güner, Buse Öztürk, Aslihan Ayalp, İhsan Kisadere, Nevzat Saat, Muhi̇tti̇n Zengi̇n, Recai̇ Kulaksiz, Şükrü Meti̇n Pancarci

Turkish Journal of Veterinary & Animal Sciences

This study aimed to determine whether serum metabolite and hormones of ewes with low body condition scores subjected to the melatonin plus progesterone-based protocol (MPE) would be similar to a single progesterone-based protocol (PE) and whether melatonin ear implant supplementation could increase pregnancy rate. Ninety suckled Merino ewes with singleton lamb were equally allocated in two experimental groups (MPE, PE) and a control group (CON) on days 53 ± 3 (D0) postpartum. Ewes in MPE group were subjected to exogenous melatonin plus progesterone-based protocol [Melatonin (day 0) + P4 insertion (day 35) + 500 IU eCG (day 42)]. Ewes in …

Comparison Of Carcass Characteristics, Meat Quality, And Fatty Acid Composition In Slowand Fast-Growing Broilers At Different Slaughter Weights, Büşra Yaranoğlu, Hi̇lal Çapar Akyüz, Esi̇n Ebru Onbaşilar

Turkish Journal of Veterinary & Animal Sciences

This study aimed to compare the slaughter, meat quality characteristics, and fatty acid composition of fast-growing (FAG) and slow-growing (SWG) broilers at different slaughter weights. In the experiments, a total of 90 carcasses were used: 45 SWG (Hubbard-Isa Red JA) and 45 FAG broilers (Ross 308) with 15 carcasses from each slaughter weight group (1500 ± 50 g, 2000 ± 50 g, 2500 ± 50 g). Hot carcass yield and cold carcass yield detected in the FAG broilers were higher than in SGW broilers (p < 0.001). As the weight of slaughter increased, hot carcass and cold carcass yield increased (p < 0.001). The breast percentage was significantly lower in the SWG broilers compared to the FAG broilers (p < 0.001). In contrast, thigh, wing, and abdominal fat percentages were higher in the SWG broilers (p < 0.001). The breast percentage increased as the slaughter weight increased (p < 0.001). SWG broilers had significantly lower pH, except for the pH 24 of the thigh meat (p < 0.01). The L*, a*, and b* values of the SWG broilers were lower than the FAG broilers (p < 0.01). In terms of a* values determined initially and at the 24th h in the breast and thigh meat, the 1500 g slaughter weight group had by far the highest value (p < 0.01). SWG broilers had significantly lower values in terms of cooking loss, water-holding capacity, and drip loss (p < 0.001). C18:2ω6 was detected at higher amounts in the FAG broilers (p < 0.05). The FAG broilers had higher PUFA, desired fatty acids, PUFA/SFA, and thrombogenic index values (p < 0.05). The results show that FAG broilers can meet the strong worldwide demand for meat quantity and quality. Slaughter weight changes only affected the quantity of the meat.

In Vitro Determination Of The Anthelmintic Potential Of Arum Rupicola Boiss Var. Rupicola, Tuğrul Atalay, Kader Yildiz

Turkish Journal of Veterinary & Animal Sciences

Arum rupicola Boiss var. rupicola is a preferred ingredient in traditional medicine in various countries, including Türkiye. The current study aims to establish the antiparasitic effect of A. rupicola Boiss var. rupicola on the eggs and larvae of T. canis in vitro. An ovicidal effect was not detected in the plant extracts, and embryogenesis in the T. canis eggs was not affected by the leaves' ethanolic extract and the distilled water extract of the rhizome during the incubation periods (6, 12, and 24 h). The larvicidal activity was observed in both extracts on the T. canis larvae after hatching. All …

Evaluation Of The Effects Of Ghrelin And Metformin On Sperm Parameters, Testosterone Hormones, And Immunohistochemical And Immunofluorescent Markers In An Experimental Diabetes Model, Saadet Belhan, Zübeyi̇r Huyut, Serkan Yildirim, Özlem Ergül Erkeç, Uğur Özdek

Turkish Journal of Veterinary & Animal Sciences

Testicular dysfunction, a severe secondary complication of diabetes, negatively affects reproductive health. Ghrelin is a peptide that plays a role in many metabolic events, such as stimulating growth hormones and regulating appetite, blood pressure, and reproduction. Metformin has antiinflammatory and antioxidant properties and is widely used to treat type 2 diabetes. Therefore, in this study, to investigate the effects of ghrelin and metformin on testicular function in experimental diabetic rats given streptozotocin, placed on a high-fat diet, and that had their sperm parameters evaluated, testosterone hormone, caspase 3 and iNOS expression, and histopathological examinations were performed. In total, 38 Wistar …

Radiographic Pelvimetry In Scottish Fold Cats: Sex-Related Differences, Osman Yilmaz, Davut Koca, Talha Avcilar

Turkish Journal of Veterinary & Animal Sciences

This study was carried out to obtain osteometric measurements of the pelvis of Scottish Fold cats using X-ray images and reveal the biometric differences of these measurement values in terms of sexual dimorphism. Radiographic images of the pelvis in the laterolateral and ventrodorsal direction were used in male and female Scottish Fold cats aged 2-4 years with dystocia and eutocia. The measurements of 18 osteometric parameters and 36 parameters, such as the height/width ratio of the cat pelvis, were taken, and statistical analysis of the measurements was initiated. When the pelvimetric data were examined, it was observed that all of …

Determining The Protective Effect Of A Boron Adjuvanted Vaccine With An Experimental Infection Model In Mice, Zafer Sayin, Ali̇ Uslu, Özgür Özdemi̇r, Abdullah Başoğlu, Asli Balevi̇, Uçkun Sai̇t Uçan, Zeki̇ Aras, Osman Ergani̇ş

Turkish Journal of Veterinary & Animal Sciences

Boron is a required trace element for plants, humans, and animals and it has significant influence over biological functions and the immune system. Vaccines have aided humans in the control of many contagious diseases around the world. The success of global immunization campaigns may be possible with the development of effective and low-cost vaccines and adjuvants. For this reason, the present study aimed to determine the adjuvant activity of easily accessible boron compounds. In this study, six different vaccines were prepared, including inactive Staphylococcus aureus bacteria, boric acid, aluminum hydroxide, montanide ISA 50, and ISA 206, ISA 50 + boric …

Preantral Follicle Morphometry And Ultrastructure Of Antral Follicles In Anatolian Water Buffalo, Duygu Baki̇ Acar, Muhammed Kürşad Bi̇rdane, Çi̇ğdem Tokyol, Nermi̇n Nüket Göçmen Karabeki̇r, Hati̇ce Mürvet Hayran, Erhan Özenç, Fatma Aktepe, Ebubeki̇r Yazici, İlknur Pi̇r Yağci, Mehmet Uçar

Turkish Journal of Veterinary & Animal Sciences

This study aimed to evaluate quantitative and morphometric analyses of preantral follicles and the ultrastructural characteristics of antral follicles in different oestrous cycle stages in Anatolian water buffaloes. Twenty-four ovaries collected from twelve slaughtered Anatolian water buffaloes were classified macroscopically as luteal or follicular stages. The ovaries were prepared for histological examination (Hematoxylin-eosin staining), and primordial, primary, and secondary follicle numbers were calculated, and the diameters of oocytes, follicles, and nuclei were measured under a light microscope with a micrometre. The theca and granulosa cells of antral follicles were observed under a transmission electron microscope. The mean number of preantral …

The Effect Of Using Different Litter Materials In Broiler Rearing On Performance, Carcass Yield, Antioxidant Status, Some Litter Parameters, And Coccidiosis Oocysts, Gökhan Şen, Mehmet Naci̇ Oktay, Şevket Evci̇, Sami̇ Gökpinar, Ali̇ Şenol

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to determine the effects of various mixtures of different litter materials containing wood shaving and barley straw on body weight gain, feed consumption, feed efficiency, carcass yield, antioxidant state, litter quality, and coccidio oocysts in broilers rearing. For this purpose, a total of 120, 0-day-old Ross 308 broilers were assigned to 3 groups with 4 replicates. Wood shaving, barley straw, and wood shaving + barley straw group had 10 chicks in each replicate, a total of 40 chicks in each group. When the overall period of the study was examined, it was determined that …

Immunoreactivity Of Infiltrating Macrophages During Gastric Ulcer Healing In Rats, Erkmen Tuğrul Epi̇kmen, Emrah İpek, Recai̇ Tunca

Turkish Journal of Veterinary & Animal Sciences

This study investigated a timeline of changes in the immunoreactivity of infiltrating macrophages during gastric ulcer healing. To this end, gastric tissue samples were obtained from an acetic acid-induced gastric ulcer model in rats on the 1st, 3rd, 7th, and 14th days of ulcer induction. Ulcerated gastric tissues were subjected to histologic and immunohistochemical evaluations for macrophage subtypes. The number of Iba-1+ macrophages in the gastric ulcer area significantly increased on day 3, reaching a maximum number on day 7, followed by a decrease on day 14. No Gal-3+ macrophages were seen in the gastric ulcer area until day 14. …

Design, Fabrication, And Evaluation Of 3-D-Printed Cystotomy Spoons As A Retrieval Method In Dogs, Davina C. D'Angelo, Sam E. Stephens, Morten O. Jensen, Lauren R. Thomas

Animal Science Faculty Publications and Presentations

OBJECTIVE

Current cystotomy methods often implement the use of off-label devices, resulting in urocystolith extraction difficulty and potentially leading to postoperative complications and discomfort for the patient. The objective of this study was to create 3 novel 3-D printed cystotomy spoons that offer a dedicated solution for removing urocystoliths from a patient's urinary bladder.

ANIMALS

Clinical use of the 3 novel 3-D printed cystotomy spoons were ultimately evaluated in 4 dogs and 1 cat that presented for urocystotlith removal at 3 different veterinary hospitals in northwest Arkansas.

METHODS

The novel cystotomy spoons were designed using SolidWorks, 3-D printed with a …

Growing South Dakota (Fall 2023), College Of Agriculture, Food And Environmental Sciences

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

[Page] 3 Back-to-Back Champions: SDSU Quarter Scale Tractor Team Repeats International Win
[Page] 6 CAFES Welcomes New Members to College Leadership Team
[Page] 9 Vikram Mistry Retires After Nearly 40-Year Career at SDSU
[Page] 12 Bill Gibbons Retires After 36 Years at SDSU
[Page] 13 Nic Uilk: Klingbeil Endowed Educator in Precision Agriculture
[Page] 15 SDSU Students Study Abroad
[Page] 19 CAFES Faculty Claim National Awards
[Page] 21 Dairy Alum Sanne de Bruijn Grabs Global Opportunities
[Page] 23 SDSU Extension Cohort Programs
[Page] 25 Summer Field Day Highlights
[Page] 29 Jackrabbits Now and Then

H5n1 Highly Pathogenic Avian Influenza Clade 2.3.4.4b In Wild And Domestic Birds: Introductions Into The United States And Reassortments, December 2021–April 2022, Sungsu Youk, Mia Kim Torchetti, Kristina Lantz, Julianna B. Lenoch, Mary Lea Killian, Christina Leyson, Sarah N. Bevins, Krista Dilione, Hon S. Ip, David E. Stallknecht, Rebecca L. Poulson, David L. Suarez, David E. Swayne, Mary J. Pantin-Jackwood

United States Department of Agriculture Wildlife Services: Staff Publications

Highly pathogenic avian influenza viruses (HPAIVs) of the A/goose/Guangdong/1/1996 lineage H5 clade 2.3.4.4b continue to have a devastating effect on domestic and wild birds. Full genome sequence analyses using 1369 H5N1 HPAIVs detected in the United States (U.S.) in wild birds, commercial poultry, and backyard flocks from December 2021 to April 2022, showed three phylogenetically distinct H5N1 virus introductions in the U.S. by wild birds. Unreassorted Eurasian genotypes A1 and A2 entered the Northeast Atlantic states, whereas a genetically distinct A3 genotype was detected in Alaska. The A1 genotype spread westward via wild bird migration and reassorted with North American …

Limited Accumulation And Persistence Of An Influenza A Virus In Tadpole Snails (Physa Spp.), Paul T. Oesterle, J. Jeffrey Root, Darcy S.O. Mora, Heather Schneider, Alan B. Franklin, Kathryn P. Huyvaert

United States Department of Agriculture Wildlife Services: Staff Publications

Waterfowl infected with avian influenza A viruses (IAVs) shed infectious virus into aquatic environments, providing a mechanism for transmission among waterfowl, while also exposing the entire aquatic ecosystem to the virus. Aquatic invertebrates such as freshwater snails are likely exposed to IAVs in the water column and sediment. Freshwater snails comprise a significant portion of some waterfowl species’ diets, so this trophic interaction may serve as a novel route of IAV transmission. In these experiments, tadpole snails (Physa spp.) were exposed to a low-pathogenicity IAV (H3N8) to determine whether snails can accumulate the virus and, if so, how long virus …

Heterochronic Serum Proteins, Jeffrey Mason

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Mechanism of ovarian-dependent enhancement of health and longevity in postreproductive female mice

Application Of New Molecular Tools To Assess Virus Viability In Production Animals, Declan C. Schroeder

Proceedings of the Arkansas Nutrition Conference

Persistent viral infections routinely impose an inconvenient, always costly but thankfully not all too often catastrophic outcome on our modern food system. Managing viruses is key for all concerned if our objective is to meet the ever-growing demand to high-value animal protein. Whether it’s the impact influenza A virus (IAV) has on the avian or swine industries, Porcine reproductive and respiratory virus (PRRSV) on the swine or Deformed wing virus (DWV) on honey bees in both the honey and pollinator sectors - the negative impact and damaging cost to the individual producer, country and global economy cannot be overstated.

Antiviral Susceptibility Of Clade 2.3.4.4b Highly Pathogenic Avian Influenza A(H5n1) Viruses Isolated From Birds And Mammals In The United States, 2022, Ha T. Nguyen, Anton Chesnokov, Juan De La Cruz, Philippe Noriel Q. Pascua, Vasiliy P. Mishin, Yunho Jang, Joyce Jones, Han Di, Andrei A. Ivashchenko, Mary Lea Killian, Mia K. Torchetti, Kristina Lantz, David E. Wentworth, Charles T. Davis, Alexandre V. Ivachtchenko, Larisa V. Gubareva

United States Department of Agriculture Wildlife Services: Staff Publications

Clade 2.3.4.4b highly pathogenic avian influenza (HPAI) A(H5N1) viruses that are responsible for devastating outbreaks in birds and mammals pose a potential threat to public health. Here, we evaluated their susceptibility to influenza antivirals. Of 1,015 sequences of HPAI A(H5N1) viruses collected in the United States during 2022, eight viruses (∼0.8%) had a molecular marker of drug resistance to an FDA-approved antiviral: three adamantane-resistant (M2-V27A), four oseltamivir-resistant (NA-H275Y), and one baloxavir-resistant (PA-I38T). Additionally, 31 viruses contained mutations that may reduce susceptibility to inhibitors of neuraminidase (NA) (n = 20) or cap-dependent endonuclease (CEN) (n = 11). A panel of 22 …

Impact Of Black Soldier Fly (Hermetia Illucens) Fresh Meal On The Growth Performance, Digestive Enzymes, Hematology, And Intestinal Histology Of Cork Fish (Channa Striata), Boby Muslimin, Danang Yonarta, Eny Heriyati, Helmizuryani Helmizuryani, Meika Puspita Sari, Dewi Apriyanti, Rahmat Kurniawan

Turkish Journal of Veterinary & Animal Sciences

Black Soldier Fly (BSF) is an alternative ingredient for Fish Meal (FM) which is expected to reduce aquaculture operational costs and positively impact fish growth and health. The effect of BSF fresh meal on growth response, digestibility, intestinal hematology, and intestinal histology of cork fish was investigated. The BSF experiment with mixed percentages as treatments, by 20%, 50%, 80%, and 100%, was repeated four times. Furthermore, there were 50 individuals/m3 cork fish with an average weight of 1.6 ± 0.05 g distributed in each treatment. An increase in BSF influences a significant decrease in the Relative Growth Weight (RGW) and …

Evaluation Of Different Stocking Densities On Fattening Performance, Slaughter, Carcass, Meat Quality Characteristics, And Fatty Acid Composition In New Zealand Rabbits, Büşra Yaranoğlu, Mustafa Hi̇lmi̇ Yaranoğlu, Sali̇ha Uysal, Adnan Adi̇l Hi̇şmi̇oğullari

Turkish Journal of Veterinary & Animal Sciences

The aim of the research was to investigate the effects of different stocking densities on fattening performance, slaughter, carcass, meat quality characteristics, and fatty acid composition in New Zealand rabbits raised in cage conditions and also determine the ideal housing frequency so that yields were not adversely affected. In the study, 36 New Zealand rabbits were used. After weaning, the fattening was started and rabbits were put into cages at different stocking densities as 1 rabbit/cage, 2 rabbits/cage, and 3 rabbits/ cage. The live weight of rabbits and feed consumption data were taken every week. At the end of 8 …

Expression Of Hif-1Α, Caspase-3, P53, Hsp70, Hsp90, And Nrf2 In The Canine Spleen With Siderofibrotic Nodules: An Immunohistochemical And Immunofluorescence Perspective On Apoptosis, Ferroptosis, And Oxidative Stress, Ali Babanezhad-Gajouti, Amir Amniattalab

Turkish Journal of Veterinary & Animal Sciences

Splenic siderofibrotic nodules (SFNs) are benign tiny yellow-brownish foci found in dogs. Their pathogenesis is unclear whereas trauma and hemorrhage are assumed to be the possible causative factors. The spleen of 73 Iranian dogs of the mixed breed was examined for possible splenomegaly with SFNs. Ultrasonography, blood biochemistry, pathology, and immunohistochemistry revealed splenomegaly (n = 7), splenomegaly with SFNs (n = 6) and normal spleens (n = 60). There was no significant difference between the prevalence of splenomegaly with SFN among the examined dogs and their age or sex (p > 0.05). Ultrasonography represented a significant increase (p ≤ 0.01) in …

An Evaluation Of Canine Inguinal Hernias Containing The Uterus: Clinical Experience Of Four Cases (2017-2022) And Literature Review, Fi̇rdevs Bi̇nli̇, Fati̇h Büyükbudak, İpek İnan, Volkan Ferahoğlu, Anil Gürkan Aksu, Murat Findik, Serhan Serhat Ay

Turkish Journal of Veterinary & Animal Sciences

The aim of this study is to identify and summarize the evidence and risk factors of canine inguinal hernia containing the uterus (Inguinal Hysterocele; IH) etiology by presenting our clinical experience with a literature review. A total of 18 canine IH cases were evaluated in the study. Of these, four have not yet been published anywhere, two have been published before, and 12 were obtained through a literature review. According to the findings, 81.3% of the cases were small/medium races, 83.3% were ≥5 years old, and 72.7% were multiparous. Totally 83.3% of the cases were chronic and 72.2% of the …

Comparison Of Bacterial Profile And Antibiotic Susceptibility Isolated From Surgical Site After Ventral Midline And Lateral Flank Approaches Of Ovariohysterectomy In Queens And Bitches, Ebru Karakaya Bi̇len, Serpi̇l Kahya Demi̇rbi̇lek, Öznur Yilmaz, Muhammet Ali̇ Karadağ, Havva Aner

Turkish Journal of Veterinary & Animal Sciences

The aim of the study was to identify the bacterial profile and antimicrobial susceptibility from surgical site cultures in queens and bitches undergoing ovariohysterectomy via ventral midline and lateral flank approaches. Healthy 22 queens and 21 bitches were assigned randomly either ventral midline or lateral flank approach for routine ovariohysterectomy. Surgical site samples were collected before the surgery and on the 1$^{st}$, 2$^{nd}$ , and 3 $^{rd}$days after the surgery for microbiological analysis. A total of 70 different strains were isolated from 50 (29%) of 172 samples. In both queens and bitches the total number of bacteria isolated from the …

Stereological Investigation Of Medulla Oblongata Volume In Norduz Sheep, Ozan Ertaş, Gamze Çakmak

Turkish Journal of Veterinary & Animal Sciences

In this study, it was aimed to stereologically examine the medulla oblongata volume of Norduz sheep in the Gürpınar District of Van Province. Upon receiving news from the sections in the Gürpınar region, we went to the region. A total of 12 Norduz sheep skulls, 6 females and 6 males, were received from the Norduz sheep slaughter in the region. After the brains of Norduz sheep were dissected, they were fixed as a whole in formaldehyde for 1 week. Medulla oblongatas were separated from the brain and kept in formaldehyde for 1 week. Tissues obtained by sequential random sampling from …

Determination Of Virulence Genes And Antibiotic Resistance Profiles Of Streptococcus Agalactiae Isolated From Buffalo Milk, Nevi̇n Tuzcu, Hasan Hüseyi̇n Hadi̇mli̇, Beatri̇z Padron

Turkish Journal of Veterinary & Animal Sciences

Mastitis is a contagious disease that causes significant milk loss and serious economic damage in dairy animals. Streptococcus agalactiae causes clinical and subclinical mastitis in animals and infections in humans, especially adults, and newborns. This study aimed to confirm the identification of S. agalactiae isolates by PCR in buffalo milk; to determine the antibiotic resistance and virulence genes by multiplex PCR. The material of this study consisted of 30 (12%) S. agalactiae strains identified by phenotypic, biochemical, and PCR methods (rRNA-16S) from 250 isolates with bacterial growth from milk samples of buffaloes with mastitis. In addition, the Kirby-Bauer disc diffusion …

Effect Of Feeding Frequency On Growth, Fecundity, And Meat Quality Of Abant Trout (Salmo Abanticus Tortonese, 1954) Broodstock, Mehmet Zeki̇ Alkan, Nadi̇r Başçinar

Turkish Journal of Veterinary & Animal Sciences

This study was carried out to investigate the growth data, egg production and changes in the biochemical structure of meat of Abant trout depending on feeding frequency (once a day, twice a day, three times a day, four times a day) in order to contribute to the economy through the private sector. All fish in the groups were planned to be of similar weight at the beginning of the study. Individual fish weights were measured at the beginning of the study, and the average was found to be 224.87 ± 0.69 g. At the end of the study, the weights …

In Vitro Antimicrobial And Antibiofilm-Forming Activities Of Origanum Munzurense Plant Extract On Some Foodborne Gram-Negative Bacteria, Hali̇l Yalçin, Esra Zeybek, Oktay Özkan, Asim Kart

Turkish Journal of Veterinary & Animal Sciences

lants are an important source for the discovery of antimicrobial formulations due to the many biologically active components they contain. In this study, in vitro antimicrobial and antibiofilm forming activities of ethanolic extract of Origanum munzurense were investigated against some strains of foodborne pathogenic bacteria. To investigate the antimicrobial activity, the minimal inhibitory concentration values against the selected bacteria and antibiofilm-forming activity were tested with the liquid microdilution method and microplate method, respectively. MICs of Origanum munzurense extract against the bacteria tested are 32 mg/mL for Escherichia coli O157: H7 ATCC 35150, 32 mg/mL for Escherichia coli O157: H7 ATCC …

The First Data Of A Newly Recorded Native Goat Genotype Called Manavlı In Türkiye: Growth Traits Of Kids, Aykut Asim Akbaş, Mustafa Saatci, Özkan Elmaz, Can Meti̇n Yazici

Turkish Journal of Veterinary & Animal Sciences

This study aimed to define growth traits of kids named Manavlı goat from six flocks under the breeder?s conditions in Denizli Province. The average birth weights of the kids were 3.63 kg, 4.28 kg, 3.85 kg, 4.11 kg, 3.83 kg, and 3.64 kg for the six flocks, respectively. The average live weights of male and female kids on 60th, 90th, and 150th day of age were 16.50 kg, 22.35 kg, and 34.82 kg and 15.33 kg, 20.14 kg, and 32.06 kg, respectively (p < 0.05). While the average live weights of single kids on 60th, 90th were 16.70 kg and 21.96 kg, the values for twins were 15.13 kg and 21.03 kg, respectively (p < 0.05). Body measurements of male kids such as height at withers, rump height, rump width, body length, heart girth, head length, ear length, tail length, and front and back wrist girth were measured as 70.26 cm, 70.21 cm, 16.23 cm, 66.80 cm, 70.11 cm, 19.51 cm, 22.16 cm, 18.59 cm, 11.85 cm, and 11.57 cm, respectively, on the 150th day of age. This study is the first research related to growth traits of Manavlı kids, for which no features have been reported to date. It was thought that the results obtained will help to characterise the Manavlı goat and will provide a database for the following studies.

The Devil You Know And The Devil You Don’T: Current Status And Challenges Of Bovine Tuberculosis Eradication In The United States, Daniel J. O'Brien, Tyler C. Thacker, Liliana C.M. Salvador, Anthony G. Duffiney, Suelee Robbe‑Austerman, Mark S. Camacho, Jason E. Lombard, Mitchell V. Palmer

United States Department of Agriculture Wildlife Services: Staff Publications

Having entered into its second century, the eradication program for bovine tuberculosis (bTB, caused by Mycobacterium bovis) in the United States of America occupies a position both enviable and daunting. Excepting four counties in Michigan comprising only 6109 km2 (0.06% of US land area) classified as Modified Accredited, as of April 2022 the entire country was considered Accredited Free of bTB by the US Department of Agriculture for cattle and bison. On the surface, the now well-described circumstances of endemic bTB in Michigan, where white-tailed deer (Odocoileus virginianus) serve as a free-ranging wildlife maintenance host, may appear to be …

Evaluation Of The Virulence Potential Of Avian Pathogenic Escherichia Coli Isolated From Broiler Breeders With Colibacillosis In Mississippi, Jiddu Joseph

Theses and Dissertations

Avian pathogenic Escherichia coli (APEC) is a bacterium that is responsible for colibacillosis in birds. However, information about broiler breeder APEC isolates is limited, but the data is critical due to the transfer of this bacteria down the production pyramid to progenies resulting in high mortality. Therefore, we evaluated the phenotypic virulence characteristics of 28 isolates using embryo lethality and day-old chick challenge assays. Also, the in vitro adhesion and invasion potential of selected nine isolates were identified. Results showed more than 1/3^rd of the isolates were highly virulent and the virulence increased as the number of virulence-associated genes …

Nutritional Strategies To Reduce Salmonella Enteritidis Infections In Laying Hens: Prebiotic, Probiotic, And Precision Biotics, Ishab Poudel

Theses and Dissertations

Salmonella Enteritidis (SE) infections in laying hens is a significant cause of foodborne illness linked to the consumption of contaminated eggs. This dissertation encompasses novel strategies aimed to explore appropriate in-vitro and in-vivo models to evaluate the effects of these novel strategies to reduce SE in laying hens. Firstly, we investigated the potential probiotics, prebiotics, and essential oil combinations to reduce SE in-vitro. The results showed that probiotics and prebiotics are equally effective to reduce SE. In subsequent studies, we evaluated the role of vaccination history on cecal microbiota and SE infections with various doses of oral SE challenge. …