Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (6555)
- Animal Sciences (5318)
- Medicine and Health Sciences (4178)
- Veterinary Medicine (3209)
- Zoology (2109)
-
- Medical Sciences (969)
- Biology (568)
- Physical Sciences and Mathematics (441)
- Agriculture (401)
- Forest Sciences (401)
- Botany (268)
- Plant Sciences (268)
- Chemistry (228)
- Computer Engineering (144)
- Computer Sciences (144)
- Electrical and Computer Engineering (144)
- Engineering (144)
- Earth Sciences (49)
- Mathematics (15)
- Physics (5)
- Keyword
-
- Turkey (674)
- Sheep (146)
- Dog (139)
- Taxonomy (139)
- Growth (135)
-
- Cattle (120)
- Fauna (117)
- Distribution (115)
- Rat (108)
- New record (105)
- New species (105)
- New records (102)
- Oxidative stress (98)
- Morphology (97)
- Iran (83)
- Reproduction (70)
- Apoptosis (68)
- Acari (66)
- ELISA (63)
- Goat (61)
- Age (58)
- Broiler (57)
- Chicken (53)
- Liver (53)
- Cow (51)
- PCR (51)
- Antioxidant (50)
- Lamb (49)
- Black Sea (47)
- Performance (47)
- Publication Year
Articles 6121 - 6150 of 8894
Full-Text Articles in Entire DC Network
Cranial Duplication (Dicephalus) In A Lamb, Özkan Ünver, Mehmet Kilinç, Ni̇hat Özyurtlu
Cranial Duplication (Dicephalus) In A Lamb, Özkan Ünver, Mehmet Kilinç, Ni̇hat Özyurtlu
Turkish Journal of Veterinary & Animal Sciences
A case of cranial duplication (Dicephalus) was described in a newborn lamb. The radiographic and macroscopic examination was performed after the cesarean section. The lamb´s heads were not completely separated. A complete nasopharynx, oropharynx, laringopharynx, and normal tongue were present in each head. The lamb died shortly after birth.
An Ectopic Case Of Psoroptes Cuniculi Infestation In A Pet Rabbit, Abuzer Acar, Ari̇f Kurtdede, Kerem Ural, Cenker Çağri Cingi, Mehmet Çağri Karakurum, Buğrahan Beki̇r Yağci, Bariş Sari
An Ectopic Case Of Psoroptes Cuniculi Infestation In A Pet Rabbit, Abuzer Acar, Ari̇f Kurtdede, Kerem Ural, Cenker Çağri Cingi, Mehmet Çağri Karakurum, Buğrahan Beki̇r Yağci, Bariş Sari
Turkish Journal of Veterinary & Animal Sciences
A 2-year-old female New Zealand rabbit was admitted to Ankara University Veterinary Faculty, Department of Internal Medicine. Upon physical examination crustaceous auricular lesions, and erythematous and exudative pruritic skin lesions, both on the ventral abdomen and on extremities were detected. Microscopic examination of skin scrapings taken from pinnae and hair plucked from the ventral abdominal region revealed the presence of Psoroptes cuniculi. The ventral abdominal localization of P. cuniculi was evaluated as an ectopic infestation. Despite the injection of ivermectin 400 µg/kg and daily supportive therapy the rabbit died on the fifth day of hospitalization.
Vitamin Status In Yearling Rams With Growth Failure, Handan Mert, Süleyman Kozat, Ni̇hat Mert, Yeter Değer
Vitamin Status In Yearling Rams With Growth Failure, Handan Mert, Süleyman Kozat, Ni̇hat Mert, Yeter Değer
Turkish Journal of Veterinary & Animal Sciences
This study was performed to investigate the serum levels of vitamins in yearling rams with growth failure. A total of 70 yearling rams of Akkaraman breed, 50 of which were classified as growth-failure with an average body weight of 37.30 ± 1.1 kg (test) and the remaining 20 were classified as normal with an average body weight of 67.80 ± 2.2 kg (control), were included in the study. There were significant differences between the yearling rams with and without growth failure in terms of serum levels of vitamin C, \beta-carotene, and vitamins A and E (P < 0.001, P < 0.01, P < 0.001, and P < 0.001, respectively). The levels of all analyzed vitamins were lower compared to controls in yearling rams with growth failure.
Environmental And Genetic Effects On Birth Weight And Survival Rate In Holstein Calves, Serdar Koçak, Mustafa Tekerli̇, Ceyhan Özbeyaz, Banu Yüceer
Environmental And Genetic Effects On Birth Weight And Survival Rate In Holstein Calves, Serdar Koçak, Mustafa Tekerli̇, Ceyhan Özbeyaz, Banu Yüceer
Turkish Journal of Veterinary & Animal Sciences
This study was undertaken to investigate the effects of certain factors on birth weight and survival rate, utilizing the records of 8399 Holstein calves maintained at the Ceylanpınar State Farm in southeastern Anatolia. The data were collected from the calf barn sheets, including birth weight, pedigree details, and calf fate. The survival rate was scored as 1 (alive) or 0 (died) in accordance with the records. Analysis of variance indicated that the effects of year, season, parity, and calf sex on birth weight were significant (P < 0.01). Only calf sex had a significant (P < 0.01) influence on survival rate. The least squares means of birth weight for all calves averaged 38.79 ± 0.171 kg. The survival rates were 0.95 ± 0.004, 0.94 ± 0.004, and 0.92 ± 0.005 at 3, 6, and 12 months of life, respectively. Heritabilities were 0.115 ± 0.0023 for birth weight and 0.020 ± 0.009, 0.011 ± 0.008, and 0.011 ± 0.008 for 3-month, 6-month, and 12-month survival rates. Genetic correlations between birth weight and every rate of survival were estimated as -0.113, -0.012, and 0.106. The corresponding phenotypic correlations were 0.022, 0.014, and -0.013. It was concluded that the birth weight and survival rates of Holstein calves reared at Ceylanpınar State Farm were acceptable. However, further improvements can be accomplished by more effective feeding and management based on the low heritabilities.
The Prevalence Of Eimeria Species In Goats In Iğdır, Abdurrahman Gül
The Prevalence Of Eimeria Species In Goats In Iğdır, Abdurrahman Gül
Turkish Journal of Veterinary & Animal Sciences
This study was conducted to identify Eimeria species in goats in 5 districts of Iğdır province in Turkey. Faecal specimens (approximately 3-5 g) were obtained from the rectums of 212 goats. In the laboratory examination of faecal samples, 10 different Eimeria species were identified in 82.55% of the specimens: E. arloingi (47.43%), E. christenseni (45.14%), E. ninakohlyakimovae (36.00%), E. alijevi (26.85%), E. hirci (23.42%), E. caprina (18.28%), E. caprovina (16.57%), E. pallida (13.14%), E. jolchijevi (10.28%), and E. apsheronica (3.42%). E. caprina and E. caprovina are reported for the first time in the Iğdır province of Turkey.
Stock Assessment And Management Of The Egyptian Sole Solea Aegyptiaca Chabanaud, 1927 (Osteichthyes: Soleidae), In The Southeastern Mediterranean, Egypt, Sahar Fahmy Mehanna
Stock Assessment And Management Of The Egyptian Sole Solea Aegyptiaca Chabanaud, 1927 (Osteichthyes: Soleidae), In The Southeastern Mediterranean, Egypt, Sahar Fahmy Mehanna
Turkish Journal of Zoology
Aspects of the population dynamics of the Egyptian sole, Solea aegyptiaca, which is a commercially important endemic and demersal flatfish species in the Egyptian Mediterranean waters, were described based on materials collected monthly between February 2004 and May 2005 from the fishing harbor at Port Said city. Age and growth studies based on sagittal otoliths revealed that this species is relatively fast growing with a maximum age of 4 years. Marginal increment analysis suggested that bands on sagittae are deposited once a year during the winter. Mean back-calculated total lengths ranged from 17.75 cm at age I to 28.22 cm …
Detection Of The Eaea Gene In Escherichia Coli From Chickens By Polymerase Chain Reaction, Ayşe Kiliç, Hasan Basri̇ Ertaş, Adi̇le Muz, Gökben Özbey, Hakan Kalender
Detection Of The Eaea Gene In Escherichia Coli From Chickens By Polymerase Chain Reaction, Ayşe Kiliç, Hasan Basri̇ Ertaş, Adi̇le Muz, Gökben Özbey, Hakan Kalender
Turkish Journal of Veterinary & Animal Sciences
The aim of this study was to isolate Escherichia coli from chickens and to determine the presence of the eaeA gene, a virulence factor detected in E. coli, in the isolates by polymerase chain reaction (PCR). Different chicken organs were inoculated onto blood agar and biochemical tests were performed on the suspicious isolates. E. coli was isolated from 48% (48/100) of the samples. DNA was extracted from these isolates and was amplified by PCR, using a pair of primers derived from the eaeA (virulence) gene. In the agarose gel examination of PCR products, 48% (48/100) of the isolates were determined …
Morphological Studies On Ovarian Mast Cells In The Cow, Asuman Özen, Levent Ergün, Emel Ergün, Nejdet Şi̇mşek
Morphological Studies On Ovarian Mast Cells In The Cow, Asuman Özen, Levent Ergün, Emel Ergün, Nejdet Şi̇mşek
Turkish Journal of Veterinary & Animal Sciences
This study was conducted on cows in the estrual and luteal phases of the cycle to determine the staining properties, light and electron microscopic appearance and numerical distribution of mast cells from various areas of the ovary. The material for the study comprised ovarian specimen taken from 14 cows, 7 in the luteal phase and 7 in the estrual phase of the sexual cycle. Specimens were taken from 3 different areas of the ovaries, including those surrounding the corpus luteum, the graafian follicle and the medulla. From all 3 areas, mast cells were demonstrated as metachromatic staining after treatment of …
Modelling A Deposition Process In Collective Construction, Robert L. Stewart, R. Andrew Russell, Lindsay Kleeman
Modelling A Deposition Process In Collective Construction, Robert L. Stewart, R. Andrew Russell, Lindsay Kleeman
Turkish Journal of Electrical Engineering and Computer Sciences
During collective construction tasks, swarm robots coordinate their actions in space and time to build structures that conform to some given design or specification. In this paper, a simulation model and a mathematical model (based on a Markov chain) are introduced to describe the deposition process of a previously detailed robotic swarm system that uses templates and feedback to facilitate construction. The models are based on the behaviour and geometry of real robots and predict the dynamics observed during practical trials as well as explaining the occurrence of different spatial patterns of building blocks. Furthermore, the models provide an insight …
Cover And Contents
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
Swarms In Biology And Engineering, Kevin M. Passino
Swarms In Biology And Engineering, Kevin M. Passino
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
Integrated Management Of Stem Rot Disease (Sclerotium Rolfsii) Of Groundnut (Arachis Hypogaea L.) Using Rhizobium And Trichoderma Harzianum (Itcc - 4572), S. Ganesan, R. Ganesh Kuppusamy, R. Sekar
Integrated Management Of Stem Rot Disease (Sclerotium Rolfsii) Of Groundnut (Arachis Hypogaea L.) Using Rhizobium And Trichoderma Harzianum (Itcc - 4572), S. Ganesan, R. Ganesh Kuppusamy, R. Sekar
Turkish Journal of Agriculture and Forestry
Soil-borne plant pathogenic fungi cause heavy crop losses all over the world. With variable climate from region to region, most crops grown in India are susceptible to diseases caused by soil-borne fungal pathogens. Among tropical and subtropical land crops, groundnut (Arachis hypogaea L.) is an important oil seed crop, providing vegetable oil as human food and oil cake meal as animal poultry feed. A large number of diseases attack groundnut plants in India; of these, stem rot (collar rot) caused by Sclerotium rolfsii is the most common disease. Certain well-studied chemical pesticide management strategies are available for reducing damage by …
A Preliminary Study On Growth Parameters And Mortality Rates Of The Barbel (Barbus Tauricus Escherichi Steindachner, 1897) In Yeşildere Stream, Rize, Turkey, Cemaletti̇n Şahi̇n, Hasan Oğuz İmamoğlu, Davut Turan, Bülent Verep, Vatan Taşkin
A Preliminary Study On Growth Parameters And Mortality Rates Of The Barbel (Barbus Tauricus Escherichi Steindachner, 1897) In Yeşildere Stream, Rize, Turkey, Cemaletti̇n Şahi̇n, Hasan Oğuz İmamoğlu, Davut Turan, Bülent Verep, Vatan Taşkin
Turkish Journal of Zoology
Growth parameters and mortality rates of the Barbus tauricus escherichi population inhabiting in Yeşildere Stream were investigated. In particular, age and size distributions, asymptotic growth, and mortality rates by age group classes were estimated. A total of 304 B. t. escherichi specimens were sampled between June 2001 and July 2002. The population consisted of 5 age classes (i.e. 0 to IV) with minimum and maximum sizes of 5 cm to 23 cm in total length. The mean growth parameters were determined as L_{infinity} = 26.63 cm, K = 0.274, and t_0 = -1.009 with the scale method and as L_{infinity} …
Maturity And Fecundity Of Spiny Dogfish (Squalus Acanthias L., 1758) In The Eastern Black Sea, Sefa Ayhan Demi̇rhan, Kadi̇r Seyhan
Maturity And Fecundity Of Spiny Dogfish (Squalus Acanthias L., 1758) In The Eastern Black Sea, Sefa Ayhan Demi̇rhan, Kadi̇r Seyhan
Turkish Journal of Zoology
The maturity and fecundity of Squalus acanthias spiny dogfish sampled from the south-eastern Black Sea were studied. Age and length at 50% maturity were 10.49 years and 87.57 cm for males, and 11.99 years and 102.97 cm for females, respectively. Mean biennial fecundity was 19.4 eggs and 12.9 pups. A linear relationship between fecundities and length was found: F_e = 0.09 x TLp + 2.12 (r = 0.5) for pups and F_o = 0.27 x TLp - 21.59 (r = 0.7) for eggs.
The Ornithofauna Of Lake Karakuyu (Afyonkarahisar, Turkey), Hümeyra Nergi̇z, Mehmet Ali̇ Tabur
The Ornithofauna Of Lake Karakuyu (Afyonkarahisar, Turkey), Hümeyra Nergi̇z, Mehmet Ali̇ Tabur
Turkish Journal of Zoology
This study was carried out to determine the ornithofauna of Lake Karakuyu, which is located in the Inner-West Toros surroundings of the Lakes Region and in Dinar district of Afyonkarahisar province. The study area is an artificial lake and it has Wildlife Protection Area status. During the study period from August 2004 to July 2005, a total of 74 bird species belonging to 31 families were observed in the area. The status of these species is as follows: 24 residents, 7 winter migrants, 22 summer migrants, and 21 transit migrants. To show the national and international importance of Lake Karakuyu, …
The Efficacy And Longevity Of Vectobac® 12 As And Vectobac® G (Both Based On Bacillus Thuringiensis Subsp. Israelensis) For The Control Of Mosquitoes In Turkey, Adnan Aldemi̇r
Turkish Journal of Zoology
Under the field conditions of the Gölbaşı district of Ankara, commercial preparations of VectoBac® 12 AS (aqueous suspension) and VectoBac® G (corn cob formulation), both based on Bacillus thuringiensis subsp. israelensis (H-14), were tested against Anopheles sacharovi, An. maculipennis, Culex pipiens, and Cx. theileri larvae at the edge of a lake, a flood plain, and a swamp. Applying VectoBac® 12 AS at the rate of 1.0-1.25 l/ha and VectoBac® G at 7.5-10.0 kg/ha produced excellent initial control (90%-100%) of all mosquito larvae under Central Anatolian conditions. An increase in larval mortality was detected in all treatments as dose rates increased, …
The Morphology, Taxonomy, And Distribution Of Specimens Of Darevskia Clarkorum (Sauria: Lacertidae: Darevskia) Collected From Turkey’S Eastern Black Sea Region, Çeti̇n Ilgaz
Turkish Journal of Zoology
In all, 103 specimens of Clark's lizard, Darevskia clarkorum (Darevsky and Vedmederja, 1977), from 6 localities in the eastern Black Sea region of Turkey were examined in terms of pholidosis characteristics, morphometric measurements, and color and pattern features. Kolmogorov-Smirnov testing across all populations verified sexual dimorphism in the Ortacalar and Hemşin populations, regarding transversal series of ventral plates (P < 0.05). According to the Mann-Whitney U test, 16 pholidosis characteristics showed differences among the populations (P < 0.05). For comparison of morphometric measurements, 4 morphometric indices and ratios were developed. According to the results of independent t-testing, no differences were found between males and females among the populations. One-way variance analyses based on 4 morphometric indices and ratios confirmed that head index, snout-vent length/tail length, and tail length/total body length showed differences among the populations (P < 0.05). Regarding pholidosis characteristics (except rates of the presence of a masseteric plate and contact between the rostral and internasal plate), morphometric measurements, and color and pattern features, the specimens collected from 6 different localities were similar to D. clarkorum specimens mentioned in the literature. Furthermore, the known range of the species in Turkey has been extended.
Growth And Mortality Of The Brown Trout (Salmo Trutta L.) Population From Upper Aksu Stream, Northeastern Anatolia, Turkey, Murat Arslan, Ayhan Yildirim, Serdar Bektaş, Ali̇ Atasever
Growth And Mortality Of The Brown Trout (Salmo Trutta L.) Population From Upper Aksu Stream, Northeastern Anatolia, Turkey, Murat Arslan, Ayhan Yildirim, Serdar Bektaş, Ali̇ Atasever
Turkish Journal of Zoology
Age, sex, mortality, and growth characteristics of brown trout (Salmo trutta) from the upper Aksu Stream were investigated. Females and males comprised 52.13% and 47.87% of the population, respectively. Age ranged from 1 to 8. The fork length (L) and total weight (W) were 5.7-22.8 cm and 2.9-142.6 g, respectively. Length-weight relationships were W = 0.015 x L^{2.939}, W = 0.015 x L^{2.928}, and W = 0.015 x L^{2.932} for females, males, and overall, respectively. The estimated von Bertalanffy growth parameters were L_{infinity} = 33.27 cm, K = 0.107 y^{-1}, and t_0 = -1.046 y for females; L_{infinity} = 29.50 …
Zooplankton Fauna And Seasonal Changes Of Gelingüllü Dam Lake (Yozgat, Turkey), Murat Kaya, Ahmet Altindağ
Zooplankton Fauna And Seasonal Changes Of Gelingüllü Dam Lake (Yozgat, Turkey), Murat Kaya, Ahmet Altindağ
Turkish Journal of Zoology
Seasonal variation and density of the zooplankton fauna were studied in Gelingüllü Dam Lake from July 2004 to June 2005. Samples were collected from 4 different stations on a monthly basis with a plankton net, both horizontally and vertically. The zooplankton sample consisted of 92% Rotifera, 7% Cladocera, and 1% Copepoda, including 54, 9, and 2 taxa, respectively. Rotifera were the dominant group of zooplankton with respect to species numbers, count, and density (I/m^3).
The Earthworm Fauna Of The Kocaeli (İzmit) City Center (Oligochaeta, Lumbricidae), Mete Misirlioğlu
The Earthworm Fauna Of The Kocaeli (İzmit) City Center (Oligochaeta, Lumbricidae), Mete Misirlioğlu
Turkish Journal of Zoology
Earthworm specimens collected from 10 different areas of the Kocaeli city center were examined and identified. At the end of the study, 8 species belonging to 5 genera of Lumbricidae were identified: Lumbricus rubellus, Cernosvitovia schweigeri, Octodrilus transpadanus, Aporrectodea caliginosa trapezoides, Aporrectodea rosea, Aporrectodea jassyensis, Dendrobaena hortensis, and Dendrobaena veneta.
Gregarina Typographi Fuchs, A Gregarine Pathogen Of The Six-Toothed Pine Bark Beetle, Ips Sexdentatus (Boerner) (Coleoptera: Curculionidae, Scolytinae) In Turkey, Mustafa Yaman
Turkish Journal of Zoology
A gregarine pathogen of Ips sexdentatus is reported in Turkey for the first time and described as Gregarina typographi. A mixed nematode parasitization and gregarine infection is reported. Gregarines were observed in the populations of I. sexdentatus in Şalpazarı (Sisdağı), Trabzon. During the study, several life stages of the gregarine pathogen were observed, measured, and photographed. Measurements of gamonts and gametocysts of G. typographi are given and compared with other gregarine isolates from Turkey.