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Morphology

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Articles 91 - 120 of 148

Full-Text Articles in Animal Sciences

Distribution And Morphology Of Mauremys Rivulata (Valenciennes, 1833) (Reptilia: Testudines: Geoemydidae) In The Lake District And Mediterranean Region Of Turkey, Di̇nçer Ayaz, Abi̇di̇n Budak Jan 2008

Distribution And Morphology Of Mauremys Rivulata (Valenciennes, 1833) (Reptilia: Testudines: Geoemydidae) In The Lake District And Mediterranean Region Of Turkey, Di̇nçer Ayaz, Abi̇di̇n Budak

Turkish Journal of Zoology

Morphometric measurements and color-pattern features of 62 samples of Mauremys rivulata from the Lake District (Göller Bölgesi) and the Mediterranean Region of Turkey were compared. Between populations, males apparently differed in 10 characters and females in 12 characters (independent t-test), but coefficient of difference (CD) values for these characters were not significant, and sexes were combined into a single group and compared with Aegean M. rivulata with respect to morphometric features. The greatest straight carapace length (SCL) observed in a male and female Aegean specimen was 215.0 mm and 214.0 mm, respectively. This paper also provides the first record of …

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Morphology And Arterial Vasculature Of Donkey (Equus Asinus L.) Adrenal Gland, Emi̇ne Karakurum, Özcan Özgel, Nejdet Dursun Jan 2008

Morphology And Arterial Vasculature Of Donkey (Equus Asinus L.) Adrenal Gland, Emi̇ne Karakurum, Özcan Özgel, Nejdet Dursun

Turkish Journal of Veterinary & Animal Sciences

In this study, the shape, localization, and arterial vascularization of the gl. adrenalis were examined in 6 donkeys. It was observed that the internal side of the gl. adrenalis sinistra was located against the aorta abdominalis and the caudal aspect of the gland was in the ventral aspect of the a. renalis sinistra. The length of the left adrenal gland was approximately 41.49-47.44 mm, while its width was about 21.70-26.24 mm, and the thickness was nearly 4.65-7.56 mm. The shape of the left adrenal gland was oval or nearly circular. The gl. adrenalis sinistra was vascularized by the rr. adrenalis …

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The Tadpole Of Eupsophus Queulensis (Anura, Cycloramphidae), Diana R. Cárdenas-Rojas, Alberto Veloso, Rafael O. De Sá May 2007

The Tadpole Of Eupsophus Queulensis (Anura, Cycloramphidae), Diana R. Cárdenas-Rojas, Alberto Veloso, Rafael O. De Sá

Biology Faculty Publications

The genus Eupsophus is characterized by endotrophic larvae that inhabit water-filled cavities. The larvae feed from large yolk reserves during metamorphosis. The external morphology has been described for four of the ten known species and data on larval chondrocranial morphology are available only for one. We describe the extema1 morphology, oral disc and chondrocranial anatomy of the larvae of Eupsophus queulensis. The characteristics of E. queulensis tadpoles are compared with those of other Eupsophus larvae.

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Distribution Pattern And Morphological Differences Between The Sexes Of River Blenny, Salaria Fluviatilis (Asso, 1801), In The Ceyhan River Basin, Turkey, Ahmet Alp, Cemi̇l Kara Jan 2007

Distribution Pattern And Morphological Differences Between The Sexes Of River Blenny, Salaria Fluviatilis (Asso, 1801), In The Ceyhan River Basin, Turkey, Ahmet Alp, Cemi̇l Kara

Turkish Journal of Zoology

The distribution of the river blenny (Salaria fluviatilis) in the Ceyhan River basin and the morphological differences between the sexes were investigated. Occurrence of the river blenny in the Ceyhan River basin depended on altitude of the habitats, and specimens were obtained at altitudes < 750 m. Samples were strongly female biased, which may have been due to the egg-guarding behavior of the males. There was also sexual dimorphism in that male blennies were larger than females (P < 0.05); however, there were no differences in the meristic counts between the sexes (P > 0.05). Analysis of variance showed that all of the standardized morphometric measurements were significantly different among the samples. In discriminant function analysis, morphological differentiation was determined between the sexes. Plotting discriminant function 1 to 2 separated the sexes from each other. Proportions of correctly classified individuals into their original groups were 71.9% for juveniles, 79.0% for …

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Gonad Development And Sex Ratio Of Sharptooth Catfish (Clarias Gariepinus Burchell, 1822) Cultured Under Laboratory Conditions, Şehri̇ban Çek, Erdal Yilmaz Jan 2007

Gonad Development And Sex Ratio Of Sharptooth Catfish (Clarias Gariepinus Burchell, 1822) Cultured Under Laboratory Conditions, Şehri̇ban Çek, Erdal Yilmaz

Turkish Journal of Zoology

In the present work, gonad development and sex ratio of sharptooth catfish (Clarias gariepinus) cultured under laboratory conditions over 365 days from hatching were investigated histologically and morphologically. The maturation stage for both males and females was detected 295 days after hatching. Five and 6 developmental stages were indicated for testis and ovaries, respectively. The developmental pattern of ovaries was categorised as the group-synchronous type. The sex ratio of the 200 sampled fish was 90:110 (male:female) and this difference was not significant (P > 0.05). Additionally, final live mean weight of the males was higher than that of the females (P < 0.05). The beginning of vitellogenesis was in April and ovarian development peaked in July. These results suggest that 1-year-old male and female C. gariepinus can be used as brood stock for seed production under standard laboratory conditions.

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Ecology And Morphological Comparison Between Rough Greensnakes (Opheodrys A. Aestivus) And Eastern Smooth Greensnakes (Opheodrys V. Vernalis) In West Virginia, Timothy Earl Baldwin Jan 2007

Ecology And Morphological Comparison Between Rough Greensnakes (Opheodrys A. Aestivus) And Eastern Smooth Greensnakes (Opheodrys V. Vernalis) In West Virginia, Timothy Earl Baldwin

Theses, Dissertations and Capstones

Since 1971, documented Rough Greensnake (Opheodrys aestivus) occurrences in West Virginia have declined from approximately 100 to less than 20 occurrences in the last 10 years. In contrast to the decline of Rough Greensnakes in WV, Smooth Greensnake (O. vernalis) populations appear to be stable over the same period of time. Historic sites from the West Virginia Biological Survey were cross referenced with habitat descriptions in published literature to establish research locations. One hundred nineteen Rough and Smooth Greensnakes were measured for snout-vent length and total body length, and of these, 78 were measured in detail for external head morphology …

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Contributions To The Chiroptera Of Mongolia With First Evidences On Species Communities And Ecological Niches, Dietrich Dolch, Nyamsuren Batsaikhan, Klaus Thiele, Frank Burger, Ingo Scheffler, Andreas Kiefer, Frieder Mayer, Ravčigijn Samjaa, Annegret Stubbe, Michael Stubbe, Leonard Krall, Dirk Steinhauser Jan 2007

Contributions To The Chiroptera Of Mongolia With First Evidences On Species Communities And Ecological Niches, Dietrich Dolch, Nyamsuren Batsaikhan, Klaus Thiele, Frank Burger, Ingo Scheffler, Andreas Kiefer, Frieder Mayer, Ravčigijn Samjaa, Annegret Stubbe, Michael Stubbe, Leonard Krall, Dirk Steinhauser

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In this paper are presented the accounts of 13 identified bat species from a total of 628 captured specimens from 32 locations in Mongolia during three field expeditions. These species accounts include taxonomical, morphological, and ecological data resulting from observations and further analyses. As a result of this work the distribution of some bat species in Mongolia can be drawn in more detail. For instance, Vespertilio murinus is much wider distributed and abundant than the former records indicate. The Plecotus species were clearly identified by genetic analyses combined with morphological characteristics. Moreover, the second record for Eptesicus serotinus and the …

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The Morphology, Taxonomy, And Distribution Of Specimens Of Darevskia Clarkorum (Sauria: Lacertidae: Darevskia) Collected From Turkey’S Eastern Black Sea Region, Çeti̇n Ilgaz Jan 2007

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.

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Karyological And Some Morphological Characteristics Of Spalax Leucodon Nordmann, 1840 (Mammalia: Rodentia) Superspecies Around Kastamonu Province, Turkey, Mustafa Sözen, Murat Sevi̇ndi̇k, Ferhat Matur Jan 2006

Karyological And Some Morphological Characteristics Of Spalax Leucodon Nordmann, 1840 (Mammalia: Rodentia) Superspecies Around Kastamonu Province, Turkey, Mustafa Sözen, Murat Sevi̇ndi̇k, Ferhat Matur

Turkish Journal of Zoology

The karyotypes and morphology of 98 specimens of the subterranean mole rat Spalax leucodon Nordmann, 1840 across 18 localities in and around Kastamonu province were analysed. It was determined that S. leucodon has 2n = 54, NF = 72; 2n = 56, NF = 74; 2n = 58, NF = 74; 2n =60, NF = 74 in the populations from the Kastamonu region. According to these karyological findings based on chromosome morphology the diploid chromosome numbers of 2n = 56, 2n =58, and 2n = 60 determined here are new for Spalax leucodon in Turkey. Because diploid numbers of these …

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Morphological And Biometrical Comparisons Of Mesocricetus Nehring, 1898 (Mammalia: Rodentia) Species Distributed In The Palaearctic Region, Nuri̇ Yi̇ği̇t, Ercüment Çolak, Rolf Gattermann, Karsten Neumann, Şaki̇r Özkurt, Muhammed Mouradi Gharakheloo, Peter Fritzsche, Reyhan Çolak Jan 2006

Morphological And Biometrical Comparisons Of Mesocricetus Nehring, 1898 (Mammalia: Rodentia) Species Distributed In The Palaearctic Region, Nuri̇ Yi̇ği̇t, Ercüment Çolak, Rolf Gattermann, Karsten Neumann, Şaki̇r Özkurt, Muhammed Mouradi Gharakheloo, Peter Fritzsche, Reyhan Çolak

Turkish Journal of Zoology

Currently, 4 species, Mesocricetus auratus, Mesocricetus raddei, Mesocricetus newtoni, and Mesocricetus brandti of the genus Mesocricetus are accepted as the valid taxa based on karyotype and morphologic features. A potential fifth species, Mesocricetus nigriculus, is under dispute and is currently listed as a subspecies of M. raddei, along with Mesocricetus raddei raddei and Mesocricetus raddei avaricus. UPGMA cluster analyses performed with biometrical measures confirm, only partially, the common separation of Mesocricetus hamsters into a Transcaucasian group with Mesocricetus newtoni, Mesocricetus brandti, and Mesocricetus auratus, and a Ciscaucasian group including the M. raddei subspecies. The status of M. nigriculus could not …

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The Morphological Analysis Of Mus Domesticus And Mus Macedonicus (Mammalia: Rodentia) In Turkey, Ercüment Çolak, Nuri̇ Yi̇ği̇t, Mustafa Sözen, Reyhan Çolak, Şaki̇r Özkurt, Tolga Kankiliç, Teoman Kankiliç Jan 2006

The Morphological Analysis Of Mus Domesticus And Mus Macedonicus (Mammalia: Rodentia) In Turkey, Ercüment Çolak, Nuri̇ Yi̇ği̇t, Mustafa Sözen, Reyhan Çolak, Şaki̇r Özkurt, Tolga Kankiliç, Teoman Kankiliç

Turkish Journal of Zoology

We examined 529 specimens of Mus domesticus and Mus macedonicus from Turkey, in terms of their morphological, bacular, and phallic aspects. The zygomatic index (ZI) varied from 0.32 to 0.47 in M. domesticus, and 0.60 to 0.85 in M. macedonicus. The head plus body length/tail length (H+B/T) index varied from 0.87 to 1.05 in M. domesticus, and 1.08 to 1.78 in M. macedonicus. The zygomatic plate is straight or convex in M. domesticus and M. macedonicus. The ventral wing of the parietal is generally tortuous in M. domesticus and is protruding or straight in M. macedonicus. The anterolabial cusp on …

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New Localities For Leptotyphlops Macrorhynchus (Jan, 1862) (Reptilia: Leptotyphlopidae) In Turkey, İsmai̇l Hakki Uğurtaş, Murat Sevi̇nç, Mehmet Öz, Rahşen S. Kaya Jan 2006

New Localities For Leptotyphlops Macrorhynchus (Jan, 1862) (Reptilia: Leptotyphlopidae) In Turkey, İsmai̇l Hakki Uğurtaş, Murat Sevi̇nç, Mehmet Öz, Rahşen S. Kaya

Turkish Journal of Zoology

Four new localities of Leptotyphlops macrorhynchus (JAN, 1862) were recorded in Turkey. Two of the localities were found within the previously known distribution area on the east side of the Fırat River, and the other 2 were found on the west side. As a result, the distribution range of Leptotyphlops macrorhynchus has been extended. Information about the morphological features of the captured specimens is given.

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On Specimens Of Darevskia Armeniaca (Sauria: Lacertidae: Darevskia) Collected From Ardahan, Çeti̇n Ilgaz Jan 2006

On Specimens Of Darevskia Armeniaca (Sauria: Lacertidae: Darevskia) Collected From Ardahan, Çeti̇n Ilgaz

Turkish Journal of Zoology

Forty-seven Darevskia armeniaca specimens collected from 2 different localities in Ardahan were examined in terms of pholidosis characters, morphometric measurements and colour-pattern features. The 2 populations were differentiated from one another in terms of the number of supraciliar plates (left-right) (SCPa-SCPb), supralabial plates (left-right) (SRLa-SRLb) and transversal series of ventral plates (TVP) according to the results of the Mann-Whitney U test. An independent t-test based on morphometric measurements revealed significant differences in terms of the head index (HI) between the 2 populations. Regarding pholidosis characters, morphometric measurements and colour-pattern features, specimens collected from the 2 localities showed a similarity to …

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A Fresh Look At The Taxonomy Of Midcontinental Sandhill Cranes, Douglas H. Johnson, Jane E. Autin, Jill A. Shaffer Jan 2005

A Fresh Look At The Taxonomy Of Midcontinental Sandhill Cranes, Douglas H. Johnson, Jane E. Autin, Jill A. Shaffer

Proceedings of the North American Crane Workshop

The midcontinental population of sandhill crane (Grus canadensis) includes about 500,000 birds and provides valuable recreational crane-watching and hunting opportunities in Canada and the United States. It comprises three subspecies, one of which (G. c. rowani) was of uncertain taxonomic status and another of which (G. c. tabida) merited protection from excessive harvest due to its small population size. We obtained measurements of cranes used by Johnson and Stewart (1973) and additional crane specimens to 1) evaluate the subspecies designation of midcontinental sandhill cranes and 2) to seek improved methods for classifying cranes from …

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A Morphological Study On The Venom Apparatus Of Spider Larinioides Cornutus (Araneae, Araneidae), Külti̇ği̇n Çavuşoğlu, Abdullah Bayram, Meltem Maraş, Kürşat Çavuşoğlu, Tali̇p Kirindi Jan 2005

A Morphological Study On The Venom Apparatus Of Spider Larinioides Cornutus (Araneae, Araneidae), Külti̇ği̇n Çavuşoğlu, Abdullah Bayram, Meltem Maraş, Kürşat Çavuşoğlu, Tali̇p Kirindi

Turkish Journal of Zoology

The morphological structure of the venom apparatus of Larinioides cornutus was studied using a scanning electron microscope(SEM). The Venom glands are situated in the anterior cephalic part of the prosoma, and each gland consists of a long cylindrical part and an adjoining duct, which terminates at the tip of the cheliceral fang. Each chelicera consists of 2 parts: a stout basal part covered by hair, and a movable fang. There are parallel grooves on the dorsal surface of the fang. The ventral surface has hollows like saw teeth. A venom pore is situated on the subterminal part of the fang. …

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On Viperid (Serpentes: Sauria) Specimens Collected From Northeastern Anatolia, İbrahi̇m Baran, Cemal Varol Tok, Kurtuluş Olgun, Fatma İret, Azi̇z Avci Jan 2005

On Viperid (Serpentes: Sauria) Specimens Collected From Northeastern Anatolia, İbrahi̇m Baran, Cemal Varol Tok, Kurtuluş Olgun, Fatma İret, Azi̇z Avci

Turkish Journal of Zoology

Specimens of Vipera eriwanensis and Vipera kaznakovi collected from northeastern Anatolia were examined in terms of morphological characters and compared with the relevant references. The distribution ranges of Vipera eriwanensis and Vipera kaznakovi were extended in Turkey by collecting specimens from new localities.

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On The Distribution And Morphology Of The Steppe Viper, Vipera Eriwanensis (Reuss, 1933), From Gavur Mountain (Gümüşhane), Bi̇lal Kutrup, Ufuk Bülbül, Nurhayat Yilmaz Jan 2005

On The Distribution And Morphology Of The Steppe Viper, Vipera Eriwanensis (Reuss, 1933), From Gavur Mountain (Gümüşhane), Bi̇lal Kutrup, Ufuk Bülbül, Nurhayat Yilmaz

Turkish Journal of Zoology

Vipera eriwanensis (Reuss, 1933), known only from the localities of the eastern Aras River in Turkey, was morphologically examined and compared with the related species on the basis of one additional specimen from Gavur mountain (province Gümüşhane), situated outside the known localities. This information changed our knowledge of the total distribution of V. eriwanensis, clearly showing that this taxon has expanded its range at least 210 km to the west in eastern Turkey. Furthermore it differs from V. eriwanensis reported from Turkey, Armenia and Azerbaijan in having a lower number of mid-body scales and loreals, and a higher number of …

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Early Life History Of Cultured Common Dentex (Dentex Dentex L. 1758), Kürşat Firat, Şahi̇n Saka, Deni̇z Çoban Jan 2005

Early Life History Of Cultured Common Dentex (Dentex Dentex L. 1758), Kürşat Firat, Şahi̇n Saka, Deni̇z Çoban

Turkish Journal of Veterinary & Animal Sciences

The early life history of common dentex (Dentex dentex L. 1758) was investigated under culture conditions. The percentage of fertilized buoyant eggs was generally high, between 80 and 85%. Egg diameters ranged from 0.938 to 1.089 mm. Larval development, growth, and some morphological changes were described from day 0 to day 32. Larvae were reared intensively in 6 m^3 tank under a constant photoperiod (24 h light), and fed initially on rotifers, followed by Artemia nauplii and Artemia metanauplii. A green water technique was applied using Nannochloropsis sp., Chorella sp., and Isochrysis sp. at a density of 150,000-200,000 cells ml^{-1}. …

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A Morphological Study On The Venom Apparatus Of The Spider Agelena Labyrinthica (Araneae, Agelenidae), Nazi̇fe Yi̇ği̇t, Turan Güven, Abdullah Bayram, Külti̇ği̇n Çavuşoğlu Jan 2004

A Morphological Study On The Venom Apparatus Of The Spider Agelena Labyrinthica (Araneae, Agelenidae), Nazi̇fe Yi̇ği̇t, Turan Güven, Abdullah Bayram, Külti̇ği̇n Çavuşoğlu

Turkish Journal of Zoology

The morphology of the venom apparatus of the spider Agelena labyrinthica was studied using scanning electron microscopy. The venom apparatus, situated in the anterior of the prosoma, is composed of a pair of chelicerae and venom glands. Each chelicera consists of two parts, a stout basal segment covered by hair, and a movable articulated fang. There are regular, parallel fine grooves on the surface of the cheliceral fang. The venom pore is situated on the subterminal portion of the fang. All of the venom glands are the same size and are shaped like long tubes. Each gland is surrounded by …

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A Morphological And Taxonomical Study On The Subspecies Of The Lycian Salamander, Mertensiella Luschani, (Steindachner, 1891) (Urodela: Salamandridae), Mehmet Öz, Serdar Düşen, Mehmet Rizvan Tunç, Yusuf Kumlutaş, Hakan Durmuş, Yakup Kaska Jan 2004

A Morphological And Taxonomical Study On The Subspecies Of The Lycian Salamander, Mertensiella Luschani, (Steindachner, 1891) (Urodela: Salamandridae), Mehmet Öz, Serdar Düşen, Mehmet Rizvan Tunç, Yusuf Kumlutaş, Hakan Durmuş, Yakup Kaska

Turkish Journal of Zoology

The morphometric measurements of 10 taxonomically important characters, and the coloration features of the 8 subspecies of Mertensiella luschani were investigated and statistical analyses were carried out. The importance of these characters in distinguishing the subspecies is discussed and some of them were found to be very reliable, although some did not show any statistical differences among the subspecies of M. luschani. The mean total body length, and the ratio of the width of the parotid to its length were the most important; the ratio of head length to head and body length, the ratio of head width to head …

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Faunistic And Morphological Studies On Ciliates (Protozoa, Ciliophora) From A Small Pond, With Responses Of Ciliate Populations To Changing Environmental Conditions, Naci̇ye Gülkiz Şenler, İsmai̇l Yildiz Jan 2004

Faunistic And Morphological Studies On Ciliates (Protozoa, Ciliophora) From A Small Pond, With Responses Of Ciliate Populations To Changing Environmental Conditions, Naci̇ye Gülkiz Şenler, İsmai̇l Yildiz

Turkish Journal of Zoology

Sixty-nine ciliate species were identified in 19 samples from a small pond covered by Lemna minor in Van, Turkey. Statistical analysis was employed to examine the relationships between ciliates and the physical and biological parameters. Total ciliate abundance appears to be related mainly with physical and biological factors such as the dissolved oxygen in the bottom layer and the volume of Lemna and temperature in the surface layer. Some species were investigated in detail using live observation, silver impregnation, and morphometry.

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Three New Localities For Rana Bedriagae Caralitana Arıkan, 1988 (Anura: Ranidae) In The West Mediterranean Region, Serdar Düşen, Mehmet Öz, Mehmet Rizvan Tunç, Yusuf Kumlutaş, Hakan Durmuş Jan 2004

Three New Localities For Rana Bedriagae Caralitana Arıkan, 1988 (Anura: Ranidae) In The West Mediterranean Region, Serdar Düşen, Mehmet Öz, Mehmet Rizvan Tunç, Yusuf Kumlutaş, Hakan Durmuş

Turkish Journal of Zoology

Thirty adult (16 males 14 females) Rana bedriagae caralitana specimens were investigated morphologically. According to results of the morphological analysis, the Kırkgöz (Antalya), Taşkesiği (Korkuteli/Antalya) and Girdev Plateau (Elmalı/Antalya) populations were included in Rana bedriagae caralitana. Furthermore, the distribution range of R. b. caralitana was extended to the northern part of the west Mediterranean Region.

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Morphological And Karyological Characteristics Of Nannospalax Ehrenbergi (Nehring, 1898) (Rodentia: Spalacidae) From Hatay Province, Turkey, Yüksel Coşkun Jan 2004

Morphological And Karyological Characteristics Of Nannospalax Ehrenbergi (Nehring, 1898) (Rodentia: Spalacidae) From Hatay Province, Turkey, Yüksel Coşkun

Turkish Journal of Zoology

The material of 31 specimens of Nannospalax ehrenbergi was collected from 11 different localities in the Hatay region in south Anatolia. The specimens were studied in respect to their morphological and karyological characteristics in detail. Some taxonomic characteristics and measurements of the body and skull were investigated. The data obtained from the specimens were compared with the results of previously published accounts and with samples collected from more than 16 other localities in Turkey, Israel, Jordan and Egypt. The karyotypes of the Yayladağ populations have 2n = 48, NF = 74 and NFa = 70, whereas the karyotypes of the …

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Use Of Spermac® Staining Technique In The Determination Of Acrosomal Defects In Cat Semen, Alper Baran, Başak Evri̇m Şahi̇n, Mi̇that Evecen, Kamber Demi̇r, İ. Kamuran İleri̇ Jan 2004

Use Of Spermac® Staining Technique In The Determination Of Acrosomal Defects In Cat Semen, Alper Baran, Başak Evri̇m Şahi̇n, Mi̇that Evecen, Kamber Demi̇r, İ. Kamuran İleri̇

Turkish Journal of Veterinary & Animal Sciences

The types and rates of acrosome and other (head, mid-piece and tail) abnormal spermatozoon types were determined by the Spermac® staining technique. Semen from 5 stray tom cats under the same management conditions was used. Semen collection was performed under general anesthesia by electro-ejaculator once a week for 5 weeks. After ejaculation the semen was diluted by 100 µl of 0.9% NaCl solution and stained with Spermac® stain for morphological evaluation. The morphological criteria were acrosome, other (head, mid-piece and tail) and total morphological defect rates, and were 9.20 ± 2.55%, 9.20 ± 3.49% and 18.40 ± 4.79%, respectively. It …

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A Study On The Morphology, Karyology And Distribution Of Ellobius Fisher, 1814 (Mammalia: Rodentia) In Iran, Muhammed Mouradi Gharakheloo, Erkut Kivanç Jan 2003

A Study On The Morphology, Karyology And Distribution Of Ellobius Fisher, 1814 (Mammalia: Rodentia) In Iran, Muhammed Mouradi Gharakheloo, Erkut Kivanç

Turkish Journal of Zoology

In this study, 180 mole-vole specimens collected from west, central, east and southeast Iran were investigated by morphological, biometrical and karyological methods. According to our findings, 3 different species, Ellobius fuscocapillus, Ellobius lutescens and Ellobius talpinus, are distributed in Iran. Karyological findings showed that E. fuscocapillus has 2n = 36 (NF = 58, NFa = 54), E. lutescens has 2n = 17 (NF = 34, NFa = 32) and E. talpinus has 2n = 52 (NF = 54, NFa = 50) chromosomes.

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A Study On The Morphology And Karyology Of Nannospalax Nehringi (Satunin, 1898) (Rodentia: Spalacidae) From Northeast Anatolia, Turkey, Yüksel Coşkun Jan 2003

A Study On The Morphology And Karyology Of Nannospalax Nehringi (Satunin, 1898) (Rodentia: Spalacidae) From Northeast Anatolia, Turkey, Yüksel Coşkun

Turkish Journal of Zoology

Twenty-two (12 males, 10 females) specimens of Nannospalax nehringi, collected from Northeast Anatolia (Turkey), were used for morphological and karyological studies. The specimens from the Kars population have foramina on the premaxillonasal suture. These foramina are absent in the Erzurum, Ağrı and Van populations. The diploid number of chromosomes in the Erzurum and Kars population is 2n = 50. The number of chromosomal arms (NF) is 70 and the number of autosomal arms (NFa) is 66. Their karyotypes consist of nine pairs of metacentric and submetacentric autosomes and 15 pairs of acrocentric autosomes. The Ağrı and Van populations have 2n …

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A Comparative Investigation Of The Morphologic Relationship Between True Chordae Tendineae And False Chordae Tendineae Of The Left Ventricle In Different Species, Davut Özbağ, Pi̇raye Kervancioğlu, Berna Saruhan, Serhan Taşdemi̇r, Fahri̇ Yilmaz Jan 2003

A Comparative Investigation Of The Morphologic Relationship Between True Chordae Tendineae And False Chordae Tendineae Of The Left Ventricle In Different Species, Davut Özbağ, Pi̇raye Kervancioğlu, Berna Saruhan, Serhan Taşdemi̇r, Fahri̇ Yilmaz

Turkish Journal of Veterinary & Animal Sciences

Our purpose in this study was to investigate and compare the morphological relationship between the true chordae tendineae (CT) and the false chordae tendineae (FCT). One hundred and forty-seven hearts (8 humans, 23 dogs, 91 sheep, 25 goats) were investigated in our study. In terms of CT number, while the difference between humans and sheep and goats, and dogs and sheep and goats was significant statistically (p < 0.05), the difference between humans and dogs was less significant than the others. The difference between sheep and goats was not significant statistically (p > 0.05). The number of FCT were not significant (p > 0.05) in the other species while the difference between humans and dogs was significant statistically. The numerical relationship between CT and FCT was positive …

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Morphological And Biophysical Properties Of The Cells Involving The Reflexive Orienting Responses Of The Eye, Head And Body, Ramazan Bal Jan 2003

Morphological And Biophysical Properties Of The Cells Involving The Reflexive Orienting Responses Of The Eye, Head And Body, Ramazan Bal

Turkish Journal of Veterinary & Animal Sciences

The intrinsic membrane properties of the neurons in the cortices of the inferior colliculus were studied in 300-µm transversal slices. The membrane properties, including the sub- and superthreshold, of the neurons were determined by intracellular stimulations with current injections. Of 49 intracellularly recorded neurons, 21 were successfully stained with intracellular biocytin injection. Morphologically all of the 21 neurons were identified as multipolar. Physiologically three firing patterns (onset, regular and adapting) were identified on the basis of response patterns to depolarizing current injections. Onset neurons had a non-linear, and regular and adapting neurons had linear current-voltage relationships. In conclusion, with the …

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On An Asaccus Elisae (F. Werner, 1895) (Sauria: Gekkonidae) Specimen Collected From The Vicinity Of Nusaybin, Mardin, Cemal Varol Tok, Mehmet Kutsay Atatür, Durmuş Ci̇han Jan 2002

On An Asaccus Elisae (F. Werner, 1895) (Sauria: Gekkonidae) Specimen Collected From The Vicinity Of Nusaybin, Mardin, Cemal Varol Tok, Mehmet Kutsay Atatür, Durmuş Ci̇han

Turkish Journal of Zoology

A single Asaccus elisae specimen, which was caught from the vicinity of Nusaybin, Mardin in SE Anatolia, was examined morphologically. The previous known locality of the species in Anatolia was Birecik, near Şanlıurfa.

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The Discrimination Of Artvin And Ardahan Honeybees (Apis Mellifera L.) Using Morphological Characteristics, Ahmet Güler, Ethem Akyol, Mustafa Gökçe, Osman Kaftanoğlu Jan 2002

The Discrimination Of Artvin And Ardahan Honeybees (Apis Mellifera L.) Using Morphological Characteristics, Ahmet Güler, Ethem Akyol, Mustafa Gökçe, Osman Kaftanoğlu

Turkish Journal of Veterinary & Animal Sciences

This study was conducted to determine the morphological characteristics and to identify the honeybee (Apis mellifera L.) genotypes husbanded in the Artvin and Ardahan cities of the northeastern Anatolia Region. A total of 84 worker bee experimental samples were collected from 8 apiaries in different locations. From each sample 20 workers were used and 19 morphological characteristics were measured biometrically. Samples used were collected from 3 regions of Ardahan (Ardahan-Center, Posof-Yeniköy and Posof-Süngülü) and from 5 different regions of Artvin province (Hamurlu, Kaşıkçı, Borçka-Camili, Şavşat-Kocabey and Muratlı). As a result of discrimination analysis there was found to be no variation …

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