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Öğe A detailed evaluation of the skeletal elements of the skull in the grey heron (Ardea cinerea)(Tubitak Scientific & Technological Research Council Turkey, 2014) Atalgin, Sukru Hakan; Buyukcopur, Emine Umran Bozkurt; Kurtul, IbrahimThis study was designed to reveal, in detail, the features of the skull bones in the grey heron, a species of the family Ardeidae, and to compare the findings with previous related literature reports and with Nomina Anatomica Avium. The articulation between the nasal and frontal bones was observed to be through the movable frontonasal joint. The upper beak fused with the neurocranium via this joint and with the palatine and vomer. It was also bound indirectly through the zygomatic bone articulating with the quadrate bone. The frontal bone possessed the frontal depression dorsally. Wideness of the frontal bone and supranasal pila seemed to be unique for the grey heron. The quadrate bone was observed to play a primary role in the beak action. No medial process was present in the mandible. Overall, the results hereby indicate that the wider jaw opening and sharp and pointed nature of the beaks in the grey heron enable it to feed on such creatures as fish, frogs, and crustaceans.Öğe The effect of the daylight length on, mass and vascularization of the quail (Coturnix coturnix japonica): an experimental study(Agricultural Research Communication Centre, 2016) Atalgin, Sukru Hakan; Kurtul, Ibrahim; Karagoz, Yalcin; Ates, SevincA number of 24 Japanese quails were divided into two groups in order to observe changes in vascularization and weight of the testes during the reproductive and quiescent periods. Group1 was exposed to a long photoperiod of (Light, Dark) 20hL:4hD (20 hour Light:4hour Light) at 18-24 degrees C while the Group 2 received a short photoperiod of 7hL:17hD at 8-12 degrees C. The blood vessels were filled with colored latex for examination. The results revealed that each testis was mostly nourished by a single testicular artery which was arising solely from the descending aorta. The simple nature of the vessels in the quiescent period became very complex as the testes enlarged in the reproductive stage. Weights of the testes between the groups indicated the fact that the left testis was significantly larger during the reproductive and quiescent sexual periods. Consequently, our study showed that long photoperiods and temperatures significantly affect the vascular development of the testes as it is in the reproductive development.Öğe The lumbar dorsal rami of the wild pig: the intermediate branch(Tubitak Scientific & Technological Research Council Turkey, 2014) Kurtul, Ibrahim; Ates, Sevinc; Ozmen, Erdal; Takci, Lutfi; Steinke, HannoThis study has documented the intermediate branch of the dorsal rami of the spinal nerves in the lumbar region of 4 adult wild pigs. The lumbar spinal nerves at the L1-L4 levels left the vertebral canal through the intervertebral foramen. Upon the dissection of the 32 dorsal rami at these levels, 24 were displayed to construct 3 discrete branches while the remaining 8 were observed to form 2 typical branches. The dorsal rami were remarkably short, giving their branches in a fan-like spreading fashion. The lateral branches sent 2 to 3 smaller subbranches to the iliocostalis lumborum muscle, then became the cutaneous nerve. The medial branch innervated the medial component of the intertransversal and the multifidus muscles. The intermediate branch directed into the longissimus lumborum muscle, ramifying there and sending no cutaneous branches to the skin area. Four out of 8 dorsal rami dissected at L5 sent off the intermediate branch with roughly similar patterns and distributions to those seen at L1-L4. The dorsal branches at L6 were relatively longer, advanced dorsally, giving a constant branch, presumably the intermediate branch, to the caudal edge of the longissimus lumborum muscle. It then coursed upward through the subcutaneous fascia as the cutaneous nerve.Öğe Mineralization in the syrinx and caudal tracheal rings in the ostrich(Agricultural Research Communication Centre, 2018) Atalgin, Sukru Hakan; Ates, Sevinc; Kurtul, Ibrahim; Terzi, HakanThis study documented macroscopic and microscopic features and mineralization of the caudally located tracheal rings and syrinx in two ostrich (struthio camelus) having three years of age. The syrinx and trachea of the birds were stained in toto with alcian blue and alizarin red for cartilage and mineralization. Observations on the syrinx and trachea, measurements and photography were performed under stereo-microscopy. They were stained grossly using alizarin red and alcian blue to visualize mineralization and histologically by hemotoxylin and eosin (H&E) to detect ossification areas, if any. Results revealed incomplete tracheal rings located caudally in-between the intact ones. Alizarin red and alcian blue staining displayed mineralized regions grossly. Histological slides by H&E staining showed no ossification. Overall results proposed that alizarin red and alcian blue double staining is a good toll to determine mineralization which is calcium accumulation in the tissue before the formation of bone cells.Öğe Morphologic Features of the Interdigital Sinus of the Tuj Sheep(Kafkas Univ, Veteriner Fakultesi Dergisi, 2010) Aslan, Kadir; Kurtul, Ibrahim; Nazli, Muemtaz; Ates, SevincThis research, for the first time, documented the interdigital sinuses and their glandular structures of the fore-and hindfeet of the 10 Tuj sheep (5 male and 5 female) at gross and subgross and light microscopic levels. They were noted in all feet as peculiar tubular invaginations in-between the proximal and middle interdigital joints. The shape of the interdigital sinus resembles that of the pipe, composing of a narrow and long neck and a blind sac. The vascularization was through the 3rd and 4th palmar and dorsal digital arteries at the forefeet, and the 3rd and 4th plantar digital arteries at the hindfeet. The sinus was encircled with a thick capsule connected to the skin and the neighbor tissues through the connective tissue. On transversal section, there were numerous tenuous hairs clearly seen grossly on the section surface. Parenchyma and stroma units were observed in the interdigital gland. There were also hair follicles, sebaceous and sweat glands, muscle tissue and lymph follicles in the layer of the connective tissue. In this study, the morphological features of the interdigital sinuses and the glands that they contain was the first reported in the Tuj sheep. They were active in all feet, were supplied by different digital arteries and thus, it was supposed that the glands were very active on secretion.Öğe Oblique sectional planes of block plastinates eased by Sac Plastination(Elsevier Gmbh, Urban & Fischer Verlag, 2012) Kurtul, Ibrahim; Hammer, Niels; Rabi, Suganthy; Saito, Toshiyuki; Boehme, Joerg; Steinke, HannoTo find an oblique cutting plane of a plastinate, e.g. to cut gamma-nails in the femur, the Block Plastination technique was modified. After CT and MRI examination, the specimens were plastinated with the standard resin mixture E6/E12/E600. Instead of using a box to form a block during the casting and curing stage, we embedded the specimen in a sac made of polyester foil. A polymerized wooden block was attached to the specimen. The sac was wrapped with tape to the embedded specimen with the block. This approach limited the amount of required resin to the inner volume of the plastinate. Then, the plastination sac was put in the incubator for further polymerization and curing. When the foil was removed from the plastinated specimen, the wooden block served as a socket for the grip when sawing. The outer shape of the specimen remained visible. Doing so, the adequate cutting plane could be determined easily. (c) 2011 Published by Elsevier GmbH.
