Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons™

Open Access. Powered by Scholars. Published by Universities.®

2015

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 8251 - 8280 of 8769

Full-Text Articles in Life Sciences

Prehistoric Earth Oven Facilities And The Pathoecology Of Chagas Disease In The Lower Pecos Canyonlands, Karl Reinhard, Adauto Araujo Jan 2015

Prehistoric Earth Oven Facilities And The Pathoecology Of Chagas Disease In The Lower Pecos Canyonlands, Karl Reinhard, Adauto Araujo

School of Natural Resources: Faculty Publications

Understanding the endemic region of a disease is part of developing a concept of the disease’s natural history and its threat to human health in both ancient and modern times. Chagas disease is caused by the parasite Trypanosoma cruzi and has recently been identified as an emergent disease in North America. Ancient endemicity and reemergence has been demonstrated by an examination of a mummy found on the border between Coahuila, Mexico and Texas, USA. This mummified man, who died over 1000 years ago, exhibits the gross pathology of megacolon, which is consistent with Chagas disease. We are now exploring the …

Go to article

The Problem Of Low Agreement Among Automated Identification Programs For Acoustical Surveys Of Bats, Cliff Lemen, Patricia W. Freeman, Jeremy A. White, Brett R. Andersen Jan 2015

The Problem Of Low Agreement Among Automated Identification Programs For Acoustical Surveys Of Bats, Cliff Lemen, Patricia W. Freeman, Jeremy A. White, Brett R. Andersen

School of Natural Resources: Faculty Publications

We compared four programs designed to identify species of bats from their echolocation calls (Bat Call ID, EchoClass, Kaleidoscope Pro, and SonoBat) using field data collected in Nebraska, USA (29,782 files). Although we did not know the true identity of these bats, we could still compare the pairwise agreement between software packages when identifying the same call sequences. If accuracy is high in these software packages, there should be high agreement in identification. Agreement in identification by species averaged approximately 40% and varied by software package, species, and data set. Our results are not consistent with the high accuracy often …

Go to article

A Qualitative Examination Of The Sport Music Preferences Of Ncaa Division I Athletes, Zachary Ryan Jan 2015

A Qualitative Examination Of The Sport Music Preferences Of Ncaa Division I Athletes, Zachary Ryan

College of Graduate Studies: Theses & Dissertations

Athletes report listening to music prior to their sport participation for a number of reasons, including: mood-regulation, arousal control, and concentration (Laukka & Quick, 2011; Sorenson, Czech, Gonzalez, Klein, & Lachowetz, 2008; Stevens & Lane, 2001). Researchers have found that many athletes report their music preferences for everyday listening are different from what they listen to around sport participation (Laukka & Quick, 2011). Music preferences have been found to be related to both gender and aspects of an individual’s personality, such as aggression (Rentfrow & Gosling, 2003; Colley, 2008; Rubin, West, & Mitchell, 2001;). The purpose of the current study …

Go to article

An Examination Between High And Low Optimistic Ncaa Division I Student-Athletes' Perceptions Of Preferred Leadership Behavior In Sport: A Qualitative Investigation, Alexander C. Roorda Jan 2015

An Examination Between High And Low Optimistic Ncaa Division I Student-Athletes' Perceptions Of Preferred Leadership Behavior In Sport: A Qualitative Investigation, Alexander C. Roorda

College of Graduate Studies: Theses & Dissertations

Numerous researchers have examined preferred sport leadership behaviors from both the coach and athlete perspectives (Beam, Serwatka, & Wilson, 2004; Chelladurai, & Carron, 1983; Freakley, Czech, Harris, & Burdette, 2012; Turman, 2013; Weinburg, & Gould, 2010). However, there is limited research in student-athlete personality dispositions and how those might influence student-athlete perceptions of preferred leadership behaviors. The purpose of the present study was to examine views of leadership in light of certain personality dispositions. This research examined the potential influence of optimism (Abramson, et al, 2000) on qualitative descriptions of preferred leadership behaviors using the Revised Leadership Scale for Sport …

Go to article

Helping To Resolve Taxonomic Conflicts Within The Genus Amblyomma (Acari:Ixodidae) From A Molecular Perspective, Paula Lado Jan 2015

Helping To Resolve Taxonomic Conflicts Within The Genus Amblyomma (Acari:Ixodidae) From A Molecular Perspective, Paula Lado

College of Graduate Studies: Theses & Dissertations

This work sought to reassess the taxonomic status of Amblyomma parvum Aragao, 1908 and of the A. maculatum group of ticks Camicas, 1998. By using different molecular markers, 12SrDNA, 16SrDNA, DL, COI, COII (mitochondrial) and ITS2 (nuclear), I analyzed the systematic relationships between these taxa and their closest relatives. Phylogenetic analyses by maximum parsimony, maximum likelihood, and Bayesian analysis were performed in order to determine relationships among species and populations, and to determine the evolutionary history of these ixodids. The data obtained supported the hypothesis of cryptic speciation occurring within A. parvum, with the northern populations of Central America being …

Go to article

Female Social Rank And Steroid Production In Semi-Free Ranging Lemur Catta On St. Catherines Island, Georgia, Tiffany Burgess Jan 2015

Female Social Rank And Steroid Production In Semi-Free Ranging Lemur Catta On St. Catherines Island, Georgia, Tiffany Burgess

College of Graduate Studies: Theses & Dissertations

Many mammalian species live in complex social groups that profoundly affect the behavior and ecology of their members. In ring-tailed lemurs (Lemur catta) these groups are characterized by female dominance, where females have priority over males for food, grooming, and space. Among females there is also a linear dominance hierarchy. L. catta have a strong matrilineal social core due to females staying within their natal group and males dispersing at sexual maturity. Daughters “inherit” their mother’s social rank. However, it is not known if the matrilineal lines are maintained through learned dominant/aggressive behavior or inherited via genetically determined hormonal …

Go to article

The Role Of Artificial Structures In Facilitating Range Expansion Of The Introduced Barnacle Megabalanus Coccopoma In The Southeastern U.S.A., Alicia M. Reigel Jan 2015

The Role Of Artificial Structures In Facilitating Range Expansion Of The Introduced Barnacle Megabalanus Coccopoma In The Southeastern U.S.A., Alicia M. Reigel

College of Graduate Studies: Theses & Dissertations

The barnacle Megabalanus coccopoma is a recent invader of the southeastern U.S.A. from the tropical eastern Pacific. In Georgia, M. coccopoma populations along the immediate coastline often suffer extensive mortality during the winter, but population rebuilding is common after these events suggesting that there may be nearby larval sources. I investigated the hypothesis that artificial structures (i.e., buoys, towers), occurring far enough offshore of Georgia for water temperatures to be moderated by the Gulf Stream, provide refuges for breeding adults of M. coccopoma and can serve as the larval source. I investigated this hypothesis by first developing thirteen microsatellite primer …

Go to article

Myosinx Is Required For Craniofacial Development In Danio Rerio, Cole Yancey Jan 2015

Myosinx Is Required For Craniofacial Development In Danio Rerio, Cole Yancey

College of Graduate Studies: Theses & Dissertations

Craniofacial development is the process of laying early cartilage and bone patterns in the anterior region of the embryo, which ultimately results in shaping the structure of the face and head of an organism. Craniofacial abnormalities in humans, such as cleft lip and palate, are among the most common of all birth defects. Therefore, investigating the molecular mechanisms involved in craniofacial development will help us understand both evolutionary processes and genetic diseases. Craniofacial cartilage and bone structures are almost entirely derived from neural crest cells. Neural crest are a pluripotent migratory stream of cells that originate from the early developing …

Go to article

The Physiological Stress Response Caused By Hypoxia And Reperfusion Injury In Striped Bass (Morone Saxatilis) And Nile Tilapia (Oreochromis Niloticus), Amanda C. Reynolds Jan 2015

The Physiological Stress Response Caused By Hypoxia And Reperfusion Injury In Striped Bass (Morone Saxatilis) And Nile Tilapia (Oreochromis Niloticus), Amanda C. Reynolds

College of Graduate Studies: Theses & Dissertations

Approximately five million people in the United States are affected by cardiovascular related diseases yearly contributing to 300,000 annual deaths, making CVD the leading cause of mortality worldwide. It has been suggested that apoptosis (programmed cell death) contributes to the pathogenesis of cardiovascular diseases. When blood flow is reduced or cut off from the heart, usually by a thrombus, this results in oxygen deprivation (hypoxia) to the cardiomyocytes (heart cells). In response to this hypoxic stress, cardiomyocytes will undergo apoptosis. Since many species of fish can survive levels of hypoxia that would be fatal to mammals, fish are an ideal …

Go to article

Genetic Structure Of Ixodes Scapularis Say 1821 (Acari: Ixodidae), The Blacklegged Tick, By Microsatellite Analysis, John Ludwig Jan 2015

Genetic Structure Of Ixodes Scapularis Say 1821 (Acari: Ixodidae), The Blacklegged Tick, By Microsatellite Analysis, John Ludwig

College of Graduate Studies: Theses & Dissertations

The blacklegged tick, Ixodes scapularis (Acari: Ixodidae) is the subject of intense research due to its economic importance from being a vector of several diseases. Previous studies have examined its taxonomic status and more recently, its genetic structure. This study embarked upon resolving the questions surrounding the genetic structuring of the tick, by using different molecular markers. Molecular data were first phylogenetically analyzed by using four different mitochondrial and nuclear markers (12SrDNA n=483, Dloop n=432, ITS2 n=156, Actin n=117). A Bayesian tree was inferred from the concatenated mitochondrial dataset, whereas nuclear gene markers were found to be uninformative. Nine microsatellites …

Go to article

Cuticular Hydrocarbons Corroborate The Distinction Between Lowland And Highland Natal Fruit Fly (Tephritidae, Ceratitis Rosa) Populations, Lucie Vaníčková, Radka Břízová, Antonio Pompeiano, Sunday Ekesi, Marc De Meyer Jan 2015

Cuticular Hydrocarbons Corroborate The Distinction Between Lowland And Highland Natal Fruit Fly (Tephritidae, Ceratitis Rosa) Populations, Lucie Vaníčková, Radka Břízová, Antonio Pompeiano, Sunday Ekesi, Marc De Meyer

All Peer-Reviewed Publications

The cuticular hydrocarbons (CHs) and morphology of two Ceratitis rosa Karsch (Diptera: Tephritidae) populations, putatively belonging to two cryptic taxa, were analysed. The chemical profiles were characterised by two-dimensional gas chromatography with mass spectrometric detection. CHs of C. rosa that originated from the lowlands and highlands of Kenya comprised of n-alkanes, monomethylalkanes, dimethylalkanes and unsaturated hydrocarbons in the range of the carbon backbone from C14 to C37. Hydrocarbons containing C29, C31, C33 and C35 carbon atoms predominated in these two populations. 2-Methyltriacontane was the predominant compound in both populations. Quantitative differences in the distribution of hydrocarbons of different chain lengths, …

Go to article

Description Of Third Instar Larvae Of Ceratitis Fasciventris, C. Anonae, C. Rosa (Far Complex) And C. Capitata (Diptera, Tephritidae), Gary J. Steck, Sunday Ekesi Jan 2015

Description Of Third Instar Larvae Of Ceratitis Fasciventris, C. Anonae, C. Rosa (Far Complex) And C. Capitata (Diptera, Tephritidae), Gary J. Steck, Sunday Ekesi

All Peer-Reviewed Publications

Third instar larvae of members of the Ceratitis FAR complex, including Ceratitis fasciventris (Bezzi), Ceratitis anonae Graham, and Ceratitis rosa Karsch are described and compared with those of Ceratitis capitata (Wiedemann). Diagnostic characters, such as presence vs. absence of a secondary tooth on the mandibles, previously used to separate C. capitata from C. rosa, are shown to vary in each species. Significant variation in diagnostic morphological characters among populations of C. rosa from east and south Africa is documented; however, the differences are not simply congruent with the R1 and R2 designations based on other studies. Quantitative measures of numerous …

Go to article

Interactions Between Phaedrotoma Scabriventris Nixon (Hymenoptera: Braconidae) And Diglyphus Isaea Walker (Hymenoptera: Eulophidae), Parasitoids Of Liriomyza Huidobrensis (Blanchard) (Diptera: Agromyzidae), K. S. Akutse, J. Van Den Berg, N. K. Maniania, K. K.M. Fiaboe, S. Ekesi Jan 2015

Interactions Between Phaedrotoma Scabriventris Nixon (Hymenoptera: Braconidae) And Diglyphus Isaea Walker (Hymenoptera: Eulophidae), Parasitoids Of Liriomyza Huidobrensis (Blanchard) (Diptera: Agromyzidae), K. S. Akutse, J. Van Den Berg, N. K. Maniania, K. K.M. Fiaboe, S. Ekesi

All Peer-Reviewed Publications

Liriomyza leafminer flies represent a serious threat to horticultural production in East Africa. Total field parasitism rates recorded in Kenya are below 5%, with the indigenous ectoparasitoid Diglyphus isaea Walker being one of the key parasitoid species. The International Centre of Insect Physiology and Ecology (. icipe), in collaboration with the International Potato Centre (CIP), imported into Kenya the endoparasitoid Phaedrotoma scabriventris Nixon to improve natural control of leafminers. The objective of this study was to investigate the interactions between D. isaea and P. scabriventris when used together for the biological control of Liriomyza species. These interactions were studied under …

Go to article

Implementing Innovative Farm Management Practices On Dairy Farms: A Review Of Feeding Systems, Şeyda Özkan, Julian Hill Jan 2015

Implementing Innovative Farm Management Practices On Dairy Farms: A Review Of Feeding Systems, Şeyda Özkan, Julian Hill

Turkish Journal of Veterinary & Animal Sciences

The Australian dairy industry relies primarily on pasture for its feed supply. However, the variability in rainfall negatively affects plant growth, leading to uncertainty in dryland feed supply, especially during periods of high milk price. New feeding (complementary) systems combining perennial ryegrass with another crop and/or pasture species may have the potential to mitigate this seasonal risk and improve productivity and profitability by providing off-season feed. To date, the majority of research studying the integration of alternative crops into pasture-based systems has focused on substitution and utilization of alternative feed sources. There has been little emphasis on the impacts of …

Go to article

Reference Values For Selected Hematological And Biochemical Blood Parameters From Prepregnancy To Advanced Gestation In Angora Cats, Özkan Şi̇mşek, Şevket Arikan, Mi̇yase Çinar Jan 2015

Reference Values For Selected Hematological And Biochemical Blood Parameters From Prepregnancy To Advanced Gestation In Angora Cats, Özkan Şi̇mşek, Şevket Arikan, Mi̇yase Çinar

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to monitor some hematological and biochemical blood parameters from prepregnancy to advanced gestation in Angora cats. In the present study, 35 blood samples obtained before and during pregnancy from 7 adult cats were used. Blood was collected from cats before pregnancy and on days 15, 30, 45, and 55 of gestation. The blood samples were analyzed in terms of WBC, RBC, Hb, PCV, MCV, MCH, MCHC, GRA, MON, and LYM values. Additionally, serum ALT, AST, ALP, GGT, LDH, and CK activities and total cholesterol, glucose, triglyceride, urea, Ca, Mg, and Pi levels were measured. …

Go to article

Endometrial Cytology As A Diagnostic Tool For Subclinical Endometritis In Beef Heifers, Carlos Moscuzza, Guadalupe Alvarez, Betiana Gutierrez, Marcelo Zurita, Marcelo Tropeano, Roberto Perna Jan 2015

Endometrial Cytology As A Diagnostic Tool For Subclinical Endometritis In Beef Heifers, Carlos Moscuzza, Guadalupe Alvarez, Betiana Gutierrez, Marcelo Zurita, Marcelo Tropeano, Roberto Perna

Turkish Journal of Veterinary & Animal Sciences

The obstetric assistance of dystocia in field conditions promotes greater bacterial contamination of the uterus, causing subclinical endometritis. The aim of this study was to determine the occurrence of subclinical endometritis in beef heifers receiving professional calving assistance, and to evaluate endometrial cytology as a diagnostic technique compared to uterine biopsy. A group of 829 Angus heifers were assisted at calving. Dystocia was classified based on difficulty at assistance, which was estimated as complex or simple. At the end of the calving season, 93 dystocic heifers were reported (10.7%). The percentage of simple resolution and complex resolution was 88.2% and …

Go to article

Incidence And Occurrence Time Of Clinical Mastitis In Holstein Cows, Ismail Boujenane, Jalila El Aimani, Khalid By Jan 2015

Incidence And Occurrence Time Of Clinical Mastitis In Holstein Cows, Ismail Boujenane, Jalila El Aimani, Khalid By

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to assess the incidence of clinical mastitis (CM) and its risk factors in 1725 Holstein cows. Data were collected from a private farm from 2008 to 2012. The analysis of risk factors, performed with logistic regression, showed that cows at parity 2, 3, and 4 had 65%, 88%, and 115% risk of mastitis, respectively. This risk was higher (P < 0.001) than in cows at first parity. Cows that calved from October to January had the highest (P < 0.05) risk of mastitis. The number of mastitis cases in cows at lactation 2, 3, and 4 was 18.5%, 25.9%, and 40.7%, respectively, and was higher compared to cows at first lactation. Furthermore, cows that calved from July to September showed the highest number of mastitis cases. Gamma regression parameter estimates showed that the onset time of mastitis 1 and 2 in cows that calved from October to January occurred at 16.3 and 8.5 days, respectively. This was later than cows calving from July to September. The study concluded that it is necessary to examine cows for CM during the first 2 months of lactation in order to prevent mastitis and decrease its rate of incidence.

Go to article

Effects Of Alpha Lipoic Acid And Vitamin C Supplementation On Transforming Growth Factor Alpha (Tgf \Alpha) And Transforming Growth Factor Beta 2 (Tgf \Beta2)Secretion In Testicular Tissue Of Diabetic Rats, Sevda Eli̇ş Yildiz, Buket Bakir, Hami̇t Uslu, Ebru Karadağ Sari, Musa Karaman Jan 2015

Effects Of Alpha Lipoic Acid And Vitamin C Supplementation On Transforming Growth Factor Alpha (Tgf \Alpha) And Transforming Growth Factor Beta 2 (Tgf \Beta2)Secretion In Testicular Tissue Of Diabetic Rats, Sevda Eli̇ş Yildiz, Buket Bakir, Hami̇t Uslu, Ebru Karadağ Sari, Musa Karaman

Turkish Journal of Veterinary & Animal Sciences

The effects of alpha lipoic acid and vitamin C supplementation on TGF \alpha and TGF \beta2 secretion in the testicular tissue of streptozotocin-induced diabetic rats were examined by immunohistochemical methods. Rats were divided into 5 groups; group 1 (control), 2 (diabetic control), 3 (diabetes + alpha lipoic acid), 4 (diabetes + vitamin C), and 5 (diabetes + alpha lipoic acid + vitamin C). Hematoxylin and eosin staining was performed in order to examine testicular tissue histopathologically. The streptavidin-biotin-peroxidase complex method was used for histological examination and determination of TGF \alpha and TGF \beta2 localization in the testicular tissue. Regarding fasting …

Go to article

Heart Performance Of Lambs And Its Relation To Muscle Volume And Body Surface, Róbert Romvári, Csaba Hancz, Péter Horn, Zsolt Petrási, András Szabó, Dávid Mezöszentgyörgyi, Imre Repa Jan 2015

Heart Performance Of Lambs And Its Relation To Muscle Volume And Body Surface, Róbert Romvári, Csaba Hancz, Péter Horn, Zsolt Petrási, András Szabó, Dávid Mezöszentgyörgyi, Imre Repa

Turkish Journal of Veterinary & Animal Sciences

Electrocardiography-gated dynamic magnetic resonance imaging (MRI) methodology was developed for the in vivo examination of sheep heart characteristics. By combining noninvasive determination of skeletal muscle mass, we studied the relationship between total body skeletal muscle content and heart performance. Measurements were carried out on male Merino lambs using 1.5 T field strength equipment. Average left ventricular volumes were determined and stroke volume was estimated during image postprocessing. Ejection fraction was calculated (73 ± 1.8%) and the cardiac output (CO) value was estimated (2.75 ± 0.16 L/min). After measuring left ventricular wall thickness, contraction values were determined at the septum (62%), …

Go to article

Effect Of Organic Zinc Supplementation On Growth, Nutrient Utilization, And Plasma Zinc Status In Lambs, Mokhtar Mallaki, Mohammad Ali Norouzian, Ali Akbar Khadem Jan 2015

Effect Of Organic Zinc Supplementation On Growth, Nutrient Utilization, And Plasma Zinc Status In Lambs, Mokhtar Mallaki, Mohammad Ali Norouzian, Ali Akbar Khadem

Turkish Journal of Veterinary & Animal Sciences

Two experiments were conducted to investigate the effect of supplemental zinc (Zn) on performance, nutrient digestibility, and plasma Zn status in Zandi lambs. In experiment 1, 18 male lambs (BW = 21.30 ± 0.55 kg) were fed a basal diet containing 22.8 mg Zn/kg dry matter (DM) with no supplemental Zn (control) or 20 mg of supplemental Zn/kg of DM from Zn sulfate (ZnS) or Zn peptide (ZnP). Average daily gain and dry matter intake were higher for the lambs fed the diet supplemented with ZnP. Feed conversion ratio was significantly (P < 0.05) lower in the ZnP group compared to the control and ZnS groups. In experiment 2, an in vitro gas production technique was used to evaluate the effects of zinc source on the gas production parameters. Rate of gas production after 6 h and total production of gas after 24 and 48 h did not differ between groups. In vitro DM digestibility, short-chain fatty acids, and ME content were increased (P < 0.05) by ZnP supplementation when compared to the ZnS and control groups. The results of this study showed that feeding ZnP improves performance and digestibility of DM and could result in higher metabolizable energy and short-chain fatty acid yield.

Go to article

Effects Of Dystocia On Milk Production And Reproduction In Subsequent Lactation In A Turkish Holstein Herd, İbrahi̇m Kaya, Can Uzmay, Tarik Ayyilmaz Jan 2015

Effects Of Dystocia On Milk Production And Reproduction In Subsequent Lactation In A Turkish Holstein Herd, İbrahi̇m Kaya, Can Uzmay, Tarik Ayyilmaz

Turkish Journal of Veterinary & Animal Sciences

The study investigated effects of dystocia on milk production, reproduction, calf loss, and cow culling in a Turkish Holstein herd at the Agricultural Faculty, Ege University, İzmir, Turkey. Data were from 653 single calvings between 2006 and 2010. Considering a greater dystocia incidence in primiparous cows, data was divided in two; 223 primiparous and 430 multiparous calvings scored on a 1-to-5 scale. Scores were categorized into no dystocia and dystocia. With few related observations, all multiparous data were excluded since sample size for multiparous dystocic calvings was too small to make reliable estimates. Milk yields, days to first service, and …

Go to article

Genetic Diversity Of Village Chickens In Central Black Sea Region And Commercial Chickens In Turkey By Using Microsatellite Markers, Levent Mercan, Ahmet Okumuş Jan 2015

Genetic Diversity Of Village Chickens In Central Black Sea Region And Commercial Chickens In Turkey By Using Microsatellite Markers, Levent Mercan, Ahmet Okumuş

Turkish Journal of Veterinary & Animal Sciences

Local chicken populations in the Central Black Sea Region of Turkey have been intensively affected by governmental poultry culling due to avian influenza outbreak risks. The aim of this study was to investigate the genetic diversity of indigenous chicken populations raised in the Central Black Sea Region in order to assess genetic structures of these populations and to determine genetic relationships between the study populations and certain commercial chicken genotypes. Genotypic diversity of 45 Turkish village chicken populations located in 5 provinces in the Central Black Sea Region of Turkey and 2 commercial hybrid populations were compared using 28 autosomal …

Go to article

Immunohistochemical Distribution Of Platelet-Derived Growth Factor-C And Platelet-Derived Growth Factor Receptor-? In Small Intestine Of Rats Treated With Capsaicin, Buket Bakir, Ebru Karadağ Sari Jan 2015

Immunohistochemical Distribution Of Platelet-Derived Growth Factor-C And Platelet-Derived Growth Factor Receptor-? In Small Intestine Of Rats Treated With Capsaicin, Buket Bakir, Ebru Karadağ Sari

Turkish Journal of Veterinary & Animal Sciences

The purpose of this study was to examine the effect of capsaicin administration immunohistochemically on platelet-derived growth factor (PDGF)-C and platelet-derived growth factor receptor (PDGFR)-\alpha release in the small intestine tissues of rats. Rats were divided into three groups: group 1 (subcutaneous drug administration), group 2 (oral drug administration), and group 3 (subcutaneous sham administration). Histometric measurements and counts were performed in order to determine whether there was a difference between groups in terms of height of villi, depth of crypts, and goblet cell count in small intestine. The small intestine was examined by Crossman?s triple staining method and streptavidin-biotin …

Go to article

The Effects Of Hypoxia On The Expression Of Vascular Endothelialgrowth Factor In Broiler Lung Fibroblasts, Musa Özgür Özyi̇ği̇t, Müjdat Müfi̇t Kahraman, Ahmet Akkoç Jan 2015

The Effects Of Hypoxia On The Expression Of Vascular Endothelialgrowth Factor In Broiler Lung Fibroblasts, Musa Özgür Özyi̇ği̇t, Müjdat Müfi̇t Kahraman, Ahmet Akkoç

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to investigate the effects of hypoxic stresses on vascular endothelial growth factor (VEGF) in cultured lung fibroblasts of meat-type chickens. Isolated and subcultured primary lung fibroblasts were exposed to hypoxia. The presence of VEGF and the effects of hypoxia on cultured lung fibroblasts and in the culture media were evaluated. Immunocytochemistry using streptavidin-biotin-peroxidase method and ELISA using commercially available primary monoclonal antibodies were used for evaluation in both 6-h and 12-h hypoxic fibroblasts. The level of VEGF was slightly higher in the 6-h hypoxic group (1.22 ng/mL) than in the 6-h control group (1.27 …

Go to article

Determination Of Nutrient Content And Digestibility Characteristics Ofprangos Ferulacea (L.) On Grazing Lands Of Eastern Anatolia, Reşi̇t Aldemi̇r, Nuri̇ye Tuğba Bi̇ngöl, Mehmet Aki̇f Karsli, İsmai̇l Akça Jan 2015

Determination Of Nutrient Content And Digestibility Characteristics Ofprangos Ferulacea (L.) On Grazing Lands Of Eastern Anatolia, Reşi̇t Aldemi̇r, Nuri̇ye Tuğba Bi̇ngöl, Mehmet Aki̇f Karsli, İsmai̇l Akça

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to compare nutrient content, and in situ protein and organic matter degradation kinetics of Prangos ferulacea (L.) (locally called helis), a naturally growing plant on the top of Mount Artos, with those of alfalfa. P. ferulacea plants used in the study were collected from three different parts of Mount Artos in Van Province over two years. While organic matter content and in vitro organic matter digestibility of P. ferulacea were significantly higher, neutral detergent fiber, acid detergent fiber, and acid detergent insoluble nitrogen contents were significantly lower compared with those of alfalfa (P < 0.01). In general, in situ dry matter, and organic matter and crude protein degradability of P. ferulacea were significantly higher compared with those of alfalfa starting from 6 h of incubation (P < 0.05). Organic matter and crude protein degradability of P. ferulacea was 79.15% and 85.31%, respectively, after 48 h of incubation. By-pass protein content and both organic matter and crude protein degradation rates were similar between samples (P > 0.05). …

Go to article

Esophageal Obstruction In Water Buffalo (Bubalus Bubalis): A Retrospectivestudy Of 44 Cases (2006?2013), Mohamed Marzok, Alaa Moustafa, Sabry El-Khodery, Kerstin Müller Jan 2015

Esophageal Obstruction In Water Buffalo (Bubalus Bubalis): A Retrospectivestudy Of 44 Cases (2006?2013), Mohamed Marzok, Alaa Moustafa, Sabry El-Khodery, Kerstin Müller

Turkish Journal of Veterinary & Animal Sciences

The purposes of this study were to report the types, causes, and clinical findings of esophageal obstructions in water buffaloes and to verify the role of radiography in diagnosis as well as the evaluation of the proposed treatment management and outcome after treatment. Forty-four buffaloes with esophageal obstruction were used in the study. Esophageal obstruction was significantly more frequent in females than males. Buffaloes at 1-3 years of age were significantly more liable to the disease than those of other ages. Complete obstruction was more frequent than partial obstruction. Intraluminal obstruction was more prevalent than extraluminal. Obstruction at the cervical …

Go to article

Report Of Rabies In Feedlot Cattle Introduced Tobaja California From The State Of Guerrero, Mexico, Jose Luis Rodriguez Castillo, Alfonso De La Mora-Valle, Gerardo Enrique Medina-Basulto, Francisco Javier Monge-Navarro, Rosa Maria Bermudez Hurtado, Gilberto Lopez Valencia Jan 2015

Report Of Rabies In Feedlot Cattle Introduced Tobaja California From The State Of Guerrero, Mexico, Jose Luis Rodriguez Castillo, Alfonso De La Mora-Valle, Gerardo Enrique Medina-Basulto, Francisco Javier Monge-Navarro, Rosa Maria Bermudez Hurtado, Gilberto Lopez Valencia

Turkish Journal of Veterinary & Animal Sciences

Rabies is a fatal infection of the central nervous system produced by a Lyssavirus of the family Rhabdoviridae. The virus is distributed worldwide and is primarily transmitted by rabid animal bites, with multiple reservoirs depending on the region. The vampire bat Desmodus rotundus is distributed in several states of Mexico and is considered the main vector of rabies in cattle. In the state of Baja California, no cases of paralytic rabies have been reported. In this work, we report the first three cases of rabies in feedlot cattle showing nervous signs, which were later confirmed in a reference laboratory by …

Go to article

Novel Coproducts From Corn Milling And Their Use In Ruminants? Nutrition, Catalin Dragomir, Marketta Rinne, David Yanez-Ruiz Jan 2015

Novel Coproducts From Corn Milling And Their Use In Ruminants? Nutrition, Catalin Dragomir, Marketta Rinne, David Yanez-Ruiz

Turkish Journal of Veterinary & Animal Sciences

The article reviews published data on two novel coproducts originating from corn milling: high-protein distillers' grain (HPDG) and reduced-fat distillers' grain (RFDG). Based on a literature survey over the last decade, this article focuses on their chemical composition and, consequently, nutritive value and on the effects of their inclusion in ruminants' diets on rumen activity and animal performance. Compared to the classic distillers' grains, the two new coproducts expressed lower variability of their chemical composition, nutritive value, and specific feeding characteristics, allowing more targeted feeding strategies (protein balancing, avoidance of milk fat depression, etc.). Thus, HPDG has significantly higher crude …

Go to article

Impact Of B. Melitensis Rev-1 Vaccination On Brucellosis Prevalence, Adosinda Maria Coelho, Maria De Lurdes Pinto, Juan Garcia Diez, Ana Claudia Coelho Jan 2015

Impact Of B. Melitensis Rev-1 Vaccination On Brucellosis Prevalence, Adosinda Maria Coelho, Maria De Lurdes Pinto, Juan Garcia Diez, Ana Claudia Coelho

Turkish Journal of Veterinary & Animal Sciences

Trás-os-Montes e Alto Douro, in the northeastern region of Portugal, previously exhibited the highest brucellosis prevalence in the entire small ruminant population of Portugal. Consequently, a vaccination program of the whole population with Brucella melitensis Rev-1 was carried out from 2001 to 2004, and further compulsory Rev-1 vaccination of 3- to 6-month-old lambs and kids was carried out between 2005 and 2007. The prevalence of brucellosis decreased by 71.42% in 2004, with a 2-fold decrease occurring from 2005 to 2007. The reduction of brucellosis prevalence was statistically significant (P < 0.001) according to flock size. By species, brucellosis prevalence decreased 14.5-fold in sheep and 5.5-fold in goats in 2004. Regarding flock constitution, it decreased by 77% for pure flocks and 73% in mixed flocks in 2004. Regarding the animals involved in production, brucellosis prevalence decreased during the 7-year period. It was concluded that Rev-1 vaccination of the whole population was effective in decreasing brucellosis prevalence. These results contribute to the scarce information available regarding the effect of Rev-1 vaccination on different characteristics of flocks. They may be used to improve the efficiency of brucellosis eradication programs within livestock management.

Go to article

The Relationships Between Brucella Melitensis Predilection Sites, Bacterial Loads In Vivo, And The Agglutinating Antibody Response In Experimentally Infected Sheep, Xiaolei Gao, Yu Kuang, Lintao Ma, Yanli Lu, Qingmin Wu Jan 2015

The Relationships Between Brucella Melitensis Predilection Sites, Bacterial Loads In Vivo, And The Agglutinating Antibody Response In Experimentally Infected Sheep, Xiaolei Gao, Yu Kuang, Lintao Ma, Yanli Lu, Qingmin Wu

Turkish Journal of Veterinary & Animal Sciences

F?or exploring Brucella melitensis survival in in vivo predilection sites and the relationship between bacterial loads and the detection of antibody titers in experimentally subcutaneously infected sheep with B.1397645907melitensis 16M, ten rams and ten ewes were used. One ram and one ewe were euthanized at 7, 15, 30, 60, 90, 120, and 180 days post inoculation (dpi). Bacteriological results showed that tissue isolation rates and bacterial loads peaked from 7 dpi to 30 dpi and then cleared until 120 dpi. In in situ hybridization trials the strongest signals for B.1397645907melitensis were detected at 7 dpi and 15 dpi, and then …

Go to article

First Prev Next Last