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1999

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Articles 361 - 390 of 658

Full-Text Articles in Animal Sciences

Investigation On The Viability Span Of Listeria Monocytogenes During The Ripening Of Brined Şavak Cheese, Bahri̇ Patir, Aba Müslüm Güven Jan 1999

Investigation On The Viability Span Of Listeria Monocytogenes During The Ripening Of Brined Şavak Cheese, Bahri̇ Patir, Aba Müslüm Güven

Turkish Journal of Veterinary & Animal Sciences

The purpose of this study was to determine the viability span of listeria monocytogenes during the ripening of brined şavak white cheese which is produced by and has a significant role in the nutrition of people living in Elazığ, Tunceli, Bingöl and Erzincan. Ewes milk was inoculated with various strains (4b, 1/2c and 1/2a) of listeria monocytogenes at the rate of 1.00x10^3 - 1.35x10^6 cells/ml and then şavak cheese was produced from the milk. The cheese samples were analysed after 0, 15, 30, 60, 90 and 120 days of ripening for the numbers of listeria monocytogenes with the direct plating …

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Macroscopic And Microscopic Changes In Turkey Embryos Infected With Infectious Bursal Disease (Ibd; Gumboro Disease) Virus, Enver Beytut, Nursal Meti̇n Jan 1999

Macroscopic And Microscopic Changes In Turkey Embryos Infected With Infectious Bursal Disease (Ibd; Gumboro Disease) Virus, Enver Beytut, Nursal Meti̇n

Turkish Journal of Veterinary & Animal Sciences

The purpose of this study was to determine the susceptibility of turkey embryos to the chicken isolate of Infectious Bursal Disease Virus (IBDV) and to investigate the morphologic changes occured particularly in bursa of Fabricius (BF) and some visceral organs. In the study, 178 embryonated turkey eggs and 28th passage of the virus from chicken embryo were used. Doses of 0.1 ml from the viral suspension were inoculated into yolk sac (YS) and allantoic cavity (AC), respectively on 13th and 15th days of incubation. The deaths in the infected embryos occured especially between 3rd and 7th days of inoculation and …

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Studing On Metabolic And Antimicrobial Activities Of Some P. Acidilactici Strains Isolated From Meat Products, Mustafa Aşkar, Belma Aslim, Yavuz Beyatli Jan 1999

Studing On Metabolic And Antimicrobial Activities Of Some P. Acidilactici Strains Isolated From Meat Products, Mustafa Aşkar, Belma Aslim, Yavuz Beyatli

Turkish Journal of Veterinary & Animal Sciences

In this research, , In this study, a total of 74 Pediococci were isolated from 10 different sausage and sosis samples obtained from different retailers . The identification results showed that 30 (40.5%) isolates were from the species P. acidilactici. The amounts of lactic acid and H2O2 produced by the strains were in the ranges 0.11-0.64% and 0.441-0.90 (µg/10 ml, respectively. A Triple Sugar Iron (TSI) Agar medium was used for estimating the H2S production of the strains. The generally, inhibitory effects and the inhibitory effects of the bacteriocins and / or bacteriocin-like substances in the P. acidilactici strains were …

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Fattening Performance And Carcass Characteristics Of Turkish Merino And Its Crosses (F_1 And B_1) With Hampshire Down And Germen Blackheaded Mutton Male Lambs, Ali̇ Akmaz, M. Emi̇n Teki̇n, Ramazan Kadak, Hali̇l Akçapinar Jan 1999

Fattening Performance And Carcass Characteristics Of Turkish Merino And Its Crosses (F_1 And B_1) With Hampshire Down And Germen Blackheaded Mutton Male Lambs, Ali̇ Akmaz, M. Emi̇n Teki̇n, Ramazan Kadak, Hali̇l Akçapinar

Turkish Journal of Veterinary & Animal Sciences

This study was carried out of to investigate the fattening and carcass characteristics of Türkish Merino (M), Hampshire Down (HD) x M F_1 , HD x (HD x M) B_1, German Blackheaded Mutton (GBM) x M F_1 and GBM x (GBM x M) B_1 male lambs. In this study, 10 M, 10 HD x M (F_1), 7 HD x (HD x M) B_1, 10 GBM x M (F_1) and 8 GBM x (GBM x M) B_1 male lambs were used for fattening traits, and 6 of each breed for carcass traits. The lambs were fed, from the beginning at aproximately …

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Ultrasonography Of The Bovine Udder, Sai̇t Şendağ, D. Ali̇ Di̇nç Jan 1999

Ultrasonography Of The Bovine Udder, Sai̇t Şendağ, D. Ali̇ Di̇nç

Turkish Journal of Veterinary & Animal Sciences

The objective of the study was to determine the normal ultrasonographic appearance of mammary gland and teat of lactating cow. Mammary quarters were examined directly contact and in the water bath by a real-time 5-7.5 MHz linear array transducer connected to a real time ultrasound equipment. The data obtained by direct scanning and in the water bath were evaluated comparatively. The study was carried out a total of 150 teats and udders of the 50 cows brought to the Gynecology Clinic Faculty of Veterinary Medicine, University of Selçuk. Ultrasonographically teat tissue is divided into 3 layers, a hyperechoic outer layer, …

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Determination Of Pregnancy, Embryonic-Fetal Mortality, Ovarium Functions And Uterus Diameter In Cows By Ultrasonography, Seli̇m Aslan, German Wesenauer Jan 1999

Determination Of Pregnancy, Embryonic-Fetal Mortality, Ovarium Functions And Uterus Diameter In Cows By Ultrasonography, Seli̇m Aslan, German Wesenauer

Turkish Journal of Veterinary & Animal Sciences

In this study 57 cows at the puerperal stage (between 15-45 days) and at early pregnancy period (between 8-58 days) were subjected to clinical and Ultrasonography check at 10-day intervals. On the 8 th day of post insemination (p.ins.) areas of nidation ranging from 0,5-1,5 cm were established by means of US (n=53) and on 40 animals (70,2%) the development of these areas were followed until the 58th day of pregnancy. In the other 13 cows (22,8%), begining from early embriyonic featal deaths (18) days and late embriyonic featal deaths (28 days) were established ultrasonographycally. 4 animals (7,0%) that no …

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Comparison Of Some Behavioural Characteristics Of Caucasian, Central Anatolian And Erzurum Honeybee (Apis Mellifera L.) Genotypes In The Conditions Of Erzurum, Ferat Genç, Cemal Dülger, Semi̇rami̇s Kutluca, Ahmet Dodoloğlu Jan 1999

Comparison Of Some Behavioural Characteristics Of Caucasian, Central Anatolian And Erzurum Honeybee (Apis Mellifera L.) Genotypes In The Conditions Of Erzurum, Ferat Genç, Cemal Dülger, Semi̇rami̇s Kutluca, Ahmet Dodoloğlu

Turkish Journal of Veterinary & Animal Sciences

The various behavioural characteristics of Caucasian, C. Anatolian and Erzurum honeybee (Apis mellifera L.) genotypes in the conditions of Erzurum were examined in this study. A total of 30 colonies were used in the experiment; 10 colonies of each genotype. Stinging tendencies differed between the groups (P

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A Study On The Decrease Lambing Interval Of Karacabey Merino Sheep Under Semi-Intensive Conditions, E. Seval Batmaz, Hasan Başpinar Jan 1999

A Study On The Decrease Lambing Interval Of Karacabey Merino Sheep Under Semi-Intensive Conditions, E. Seval Batmaz, Hasan Başpinar

Turkish Journal of Veterinary & Animal Sciences

In this study, it is aimed to decrease lambing interval of Karacabey Merino sheep. For this reason,in June and March, sheep were mated in the interval of 8 month. Fertility traits such as oestrus, pregnancy, parturition, lambing rate and that of twinning and litter size were 99.35, 90.25, 88.96, 1327.01, 52.55 % and 1.54 respectively in June. The values of same fertility traits were 95.17, 82.75, 78.62, 105.51, 34.21 % and 1.34 respectively in March. The body weight before mating for the sheep was found 68.03 kg in June and 61.68 kg in March. The lambing interval for the sheep …

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Determination Of Kinetic, Structural And Functional Changes In The Hearts Of Dogs With Experimentally Introduced Myocardial Infarction Using M-Mode And 2-D Echocardiography, Utku Bakirel, Tarik Bi̇lal Jan 1999

Determination Of Kinetic, Structural And Functional Changes In The Hearts Of Dogs With Experimentally Introduced Myocardial Infarction Using M-Mode And 2-D Echocardiography, Utku Bakirel, Tarik Bi̇lal

Turkish Journal of Veterinary & Animal Sciences

In this study, the kinetic, structural and functional changes of the ventriculus in dogs with myocardial infarction introduced experimentally were examined using M-Mode and two dimensional (2-D) echocardiography. 21 healthy, mixed-breed dogs of both genders (16 females and 5 males) and of various ages were used in this study. Different coronary arteries were ligated in each dog with silk sutures and the dogs were grouped accordingly: left distalis descending coronary artery (Group I, n=7), right distalis descending coronary artery (Group II, n=7) and both left and right distalis decending coronary artery (Group III, n=7). All the dogs were examined using …

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The Effect Of Various Weighing Procedurs On Broiler Performance Evaluation, Recep Kahraman, Müjdat Alp, Neşe Kocabağli, Gülcan Irmak Jan 1999

The Effect Of Various Weighing Procedurs On Broiler Performance Evaluation, Recep Kahraman, Müjdat Alp, Neşe Kocabağli, Gülcan Irmak

Turkish Journal of Veterinary & Animal Sciences

This study was caried out to determine the effects of weighing, after 0 or 18 hours of starvation period of chicks and at intervals of 1 or 2 week or at the end of starter and finisher period on the live weight and feed convertion rate of broilers. In conclusion, weighing at intervals 2 weeks of broilers which fed continously to the slaughter resulted the greatest live weight and also feed convertion rate.

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The Effects Of Cyclophosphamide In The Absence And Precence Of Mesna On Some Blood Parameters In Guinea Pigs, Özdal Etli̇k, İlksi̇n Pi̇şki̇n, Vedat Sağmanligi̇l, Ahmet Tomur Jan 1999

The Effects Of Cyclophosphamide In The Absence And Precence Of Mesna On Some Blood Parameters In Guinea Pigs, Özdal Etli̇k, İlksi̇n Pi̇şki̇n, Vedat Sağmanligi̇l, Ahmet Tomur

Turkish Journal of Veterinary & Animal Sciences

This investigation was carried out to observe the effects of single dose of cyclophosphamide on blood cells and whether these could be prevented by mesna or not. In this study, 24 albino male guinea pigs weighing 250-300 g were equally diveded into 4 groups. The first (control) and second groups animals were applied physiologic saline as placebo while third and fourth group animals were given mesna (21.5 mg/kg) at 0, 180, 360 and 540^{th} minutes intraperitoneally. In addition these, physiologic saline was injected to the first and third group animals while cyclophosphamide (68,1 mg/kg) was given to the second and …

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A Research On The Growth Rate On The Mullet (Mugil Auratus Risso, 1810) Fingerlings Fed Different Diets In Cages, Gülçi̇n Ağirağaç, Mustafa Kalma Jan 1999

A Research On The Growth Rate On The Mullet (Mugil Auratus Risso, 1810) Fingerlings Fed Different Diets In Cages, Gülçi̇n Ağirağaç, Mustafa Kalma

Turkish Journal of Veterinary & Animal Sciences

This research was conducted to determine the effect of different feeds on the growth rate of mullet juveniles (M. auratus R. 1810). Juveniles with a initial mean weight of 14.15 g and 14.71 g were feed a semi-moist diet (%50 trout viscera + %25 soybean meal + %25 high quality wheat bran) and carp pellets for a period of 60 days in marine cages. At the end of the experiment, final average weights were determined as 28.83± 0.6 g and 22.04±0.6 g have been obtained, respectively. The difference between the two harvesting weights was found statistically significant (P

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Effect Of Bacteriocinogenic Starter Cultures On The Growth Of Listeria Monocytogenes In Turkish Fermented Sausage (Sucuk), İrfan Erol, T. Haluk Çeli̇k, Ufuk Tansel Şi̇reli̇, Haydar Özdemi̇r Jan 1999

Effect Of Bacteriocinogenic Starter Cultures On The Growth Of Listeria Monocytogenes In Turkish Fermented Sausage (Sucuk), İrfan Erol, T. Haluk Çeli̇k, Ufuk Tansel Şi̇reli̇, Haydar Özdemi̇r

Turkish Journal of Veterinary & Animal Sciences

The objective of this study was the inhibition of L. monocytogenes (SLCC 9488) serotype 4b, indicated great importance in foodborne listeriosis, by using bacteriocin producer starter cultures as Pediococcus acidilactici PAC 1.0 and Lactobacillus sake Lb 706 in fermented Turkish sausage (sucuk), ripened at 20° and 25°C. For this purpose, 4 groups were constituted in each experimental sucuk producing as following. All of these groups were inoculated with L. monocytogenes at the range of 7.0 - 2.9x10^5 cfu/g, and the other groups except control group following starter cultures were added. 1.Group : Included only L. monocytogenes at the range of …

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Bilateral Carpal Hyperextension Cases In Dogs And Operative Treatment Methods, Burhanettin Olcay, Mehmet Sağlam, Hasan Bi̇lgi̇li̇ Jan 1999

Bilateral Carpal Hyperextension Cases In Dogs And Operative Treatment Methods, Burhanettin Olcay, Mehmet Sağlam, Hasan Bi̇lgi̇li̇

Turkish Journal of Veterinary & Animal Sciences

This study was carried out on 4 dogs with bilateral carpal hyperextension that treated in Ankara University, Faculty of Veterinary Medicine Orthopaedics and Traumatology Clinic. In clinical examination, it was found that the angle of the stepped carpal joints were between 250° and 270°. Furthermore, there were wounds at volar sites of carpal joints. There were no lesions seen radiographically. In 3 cases, total arthrodesis was made by applying a single Steinmann pine, passing intramedullary through metacarpus III, to os carpi centrale and radius, in one case total arthrodesis was made by applying three Steinmann pines passing through metacarpus 2, …

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Effect Of Gonadoreline Administration On Blood Progesterone, Oestradiol 17\Beta Concentrationand Some Fertility Parameters In Angora Goats, Erol Alaçam, Bülent Güven, Ali Ayar, Erdal Saban Jan 1999

Effect Of Gonadoreline Administration On Blood Progesterone, Oestradiol 17\Beta Concentrationand Some Fertility Parameters In Angora Goats, Erol Alaçam, Bülent Güven, Ali Ayar, Erdal Saban

Turkish Journal of Veterinary & Animal Sciences

Various fertility parameters, plasma progesterone and oestradiol 17\beta ?concentrations were investigated in Angora Goats receiving gonadoreline immediately or on 12th day after breeding . A total 48 cyclic , pluriparous Angora Goats, 2-5 years of age were divided into 3 groups. The first group received 100 µg gonadorelin immediately after breeding. The second group received 100 µg gonadoreline on the 12th day after breeding and the third group receiving no injection served as the control. Jugular blood samples were collected from all goats during the days 13 to 16 after breeding and plasma progesterone and oestradiol 17\beta?levels were determined by …

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Efficacy Of Moxidectin Against Gastrointestinal Nematodesin Naturally Infected Lambs And Calves, Erkut Tüzer, Müfi̇t Toparlak, Kazim Göksu Jan 1999

Efficacy Of Moxidectin Against Gastrointestinal Nematodesin Naturally Infected Lambs And Calves, Erkut Tüzer, Müfi̇t Toparlak, Kazim Göksu

Turkish Journal of Veterinary & Animal Sciences

In this trial based on the reduction of the egg output and on the evaluation of results from larval/egg differentiation, moxidectin (Cydectin, 1% injectable moxidectin) administrated subcutaneously at a dose of 0.2 mg kgbw -1 was found effective on the gastrointestinal nematodes in naturally infected lambs (8 female and 7 male treatment; 8 female and 7 male control) harbored Haemonchus spp, Ostertagia spp, Trichostrongylus spp and Nematodirus spp and in naturally infected female calves (20 treatment and 10 control) harbored Haemonchus spp, Ostertagia spp, Trichostrongylus spp, Bunostomum sppand Cooperia spp.The efficacy was 100% on day +7, 99.9% on day +14 …

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The Use Of Laboratory Findings In The Diagnosis Of Ceh-Pyometra Complexin The Bitch, Mustafa Kaymaz, Ayhan Baştan, Ni̇l Erünal, Seli̇m Aslan, Murat Findik Jan 1999

The Use Of Laboratory Findings In The Diagnosis Of Ceh-Pyometra Complexin The Bitch, Mustafa Kaymaz, Ayhan Baştan, Ni̇l Erünal, Seli̇m Aslan, Murat Findik

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to research the effects of ultrasonography, vaginal cytology, a serum biochemical profile, complete blood count and blood gas analysis in 18 bitches in the diagnosis of cystic endometrial hyperplasia (CEH)-pyometra complex. In transabdomimal ultrasonography, it was observed the the majority of anechongenic areas differed with the thickness of the uterine wall. Usually basal-parabasal type of cells appeared in vaginal cytologic examination, invasion of neutrophyl leucocytes and in some cases degenerative cell changes proved inflammatory changes. In bitches with CEH-pyometra complex there was a very significant increase in AST (Aspartate aminotransferase) and decrease in the …

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The Location Of Extrinsic Afferent And Efferent Neurons Innervatingthe Stomach And Colon In Rat, Berri̇n Gençer Tarakçi, Camille Vaillant Jan 1999

The Location Of Extrinsic Afferent And Efferent Neurons Innervatingthe Stomach And Colon In Rat, Berri̇n Gençer Tarakçi, Camille Vaillant

Turkish Journal of Veterinary & Animal Sciences

The location of extrinsic afferent and efferent neurons projecting to the rat gastrointestinal tract were mapped using the retrograde tracer, True Blue (TB). Injection of retrograde tracer, TB into stomach, proximal colon and distal colon resulted in labelled cells in the dorsal root ganglia. Cells were also labelled in the nodose ganglia following injection of tracer into stomach and proximal colon. TB-labelled cells were also seen in the prevertebral ganglia (coeliacomesenteric complex and inferior mesenteric ganglion), after injection of TB into the stomach, proximal and distal colon. Many TB-labelled cells were detected in the dorsal motor nucleus of the vagus …

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Therapy Of Knemidocoptic Mange In Budgerigars With Spot-On Applicationof Moxidectin, Müfi̇t Toparlak, Erkut Tüzer, Ayşen Gargili, Aynur Gülanber Jan 1999

Therapy Of Knemidocoptic Mange In Budgerigars With Spot-On Applicationof Moxidectin, Müfi̇t Toparlak, Erkut Tüzer, Ayşen Gargili, Aynur Gülanber

Turkish Journal of Veterinary & Animal Sciences

In this study, 30 Budgerigars ( Melopsittacus undulatus) with Knemidocoptes pilae infection were treated with a spot-on application of moxidectin (Cydectin® Injection For Cattle) at a dose of 1 mg (0.1 ml Cydectin) per bird. This application was given once to 10 birds and twice at 10 days intervals to 20 birds. Clinical signs in all birds of both groups disappeared 30-40 days after treatment. No side effects were seen.

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The Morphologicial Investigations Of Experimental Avian Encephalomyelitis In Turkey Embriyo, Fethi̇ Yilmaz, Harun Özer Jan 1999

The Morphologicial Investigations Of Experimental Avian Encephalomyelitis In Turkey Embriyo, Fethi̇ Yilmaz, Harun Özer

Turkish Journal of Veterinary & Animal Sciences

In this study; macroscopic and microscopic changes induced by Avian Encepholomyelitis Virus (AEV) in turkey embryos were investigated. For purpose 0,1 ml. AEV-VR (Van Roekel Strain) at Embriyo Infective Dose 50 of 10 -3 diluted in steril saline at 1/10 ratio was inoculated into 7-day-old emriyonated turkey eggs via yolk sac. The most prominent macroscopic findings were loss of embryo movements, retardation in growth, cerebral edema, torticollis, cataract, deformities in the leg and feed. Microscopic lesions characterized by vascular proliferation, edema, gliosis, neuronal necrosis and degeneration in the brain, gliosis, neuronal degeneration and necrosis, in medulla spinalis, cataract in the …

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Effects Of Selection For Four Week Body Weight On Reproductiveperformance In Japanese Quail, Levent Türkmut, Özge Altan, İsmai̇l Oğuz, Servet Yalçin Jan 1999

Effects Of Selection For Four Week Body Weight On Reproductiveperformance In Japanese Quail, Levent Türkmut, Özge Altan, İsmai̇l Oğuz, Servet Yalçin

Turkish Journal of Veterinary & Animal Sciences

This research was carried out to determine the genetic effects of divergent selection under two different selection pressures for four week body weight over three generations on reproductive characteristics and some egg characteristics in Japanese quail. Birds were weighed individually. Individual selection for body weight was carried out at four weeks, separately for each sex. The proportion kept was 10% for males and 30% for females in 10Y and 10D lines, and 20% for males and 60% females in 20Y and 20D lines. 10Y and 20Y lines were selected for high body weight, 10D and 20D lines were selected for …

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Erythrocyte Sizes Of Some Anurans From Turkey, Mehmet Kutsay Atatür, Hüseyi̇n Arikan, İ. Ethem Çevi̇k Jan 1999

Erythrocyte Sizes Of Some Anurans From Turkey, Mehmet Kutsay Atatür, Hüseyi̇n Arikan, İ. Ethem Çevi̇k

Turkish Journal of Zoology

The erythrocyte sizes of some anurans from Turkey (Rana ridibunda, Bufo bufo, Bufo viridis, Pelobates syriacus, Bombina bombina, Hyla arborea) were established utilizing blood smears stained with Wright's stain. The largest erythrocytes were found in R. ridibunda, the widest in B. bombina and the smallest in P. syriacus.

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Liocarcinus Depurator (Linnaeus, 1758) And Brachynotussexdentatus(Risso, 1827) (Decapoda, Brachyura), Two New Records For The Turkish Black Sea Fauna, A. Suat Ateş Jan 1999

Liocarcinus Depurator (Linnaeus, 1758) And Brachynotussexdentatus(Risso, 1827) (Decapoda, Brachyura), Two New Records For The Turkish Black Sea Fauna, A. Suat Ateş

Turkish Journal of Zoology

The present study is on 2 Brachyura species, collected by a scuba diver during investigations on the decapod fauna of the Sinop Peninsula shores of the Western Black Sea region, Turkey, between June, 1995, and July, 1996. Liocarcinus depurator (Linnaeus, 1758) and Brachynotus sexdentatus (Risso, 1827), which was found in the study area, has not been reported previously from Turkish Black Sea coastal waters.

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The Taxonomic Status Of Triturus Vulgaris(Linnaeus, 1758) Populations In Western Anatolia, Turkey, Kurtuluş Olgun, İbrahi̇m Baran, Cemal Varol Tok Jan 1999

The Taxonomic Status Of Triturus Vulgaris(Linnaeus, 1758) Populations In Western Anatolia, Turkey, Kurtuluş Olgun, İbrahi̇m Baran, Cemal Varol Tok

Turkish Journal of Zoology

A total of 179 (97 males, 82 females) Triturus vulgaris specimens collected during the breeding season from Western Anatolia (Efes, Ayvacık, Lapseki, Karacabey, Gemlik) and European Turkey (Bolayır) was examined. The morphological and the statistical evaluations showed that the Western Anatolian (except Efes) and the Thrace populations are similar. The West Anatolian populations, therefore, should be included in the nominate subspecies, T.v. vulgaris. The Efes specimens were found to be different from specimens of Ayvacik, Lapseki and Gemlik especially in terms of body measurements. The explanation of the taxonomic status of the Efes population will be possible with the material …

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A Study On Vormela Peregusna Guldenstaedt, 1770 (Mammalia: Carnivora) In Turkey, Şaki̇r Özkurt, Mustafa Sözen, Nuri̇ Yi̇ği̇t, Ercüment Çolak Jan 1999

A Study On Vormela Peregusna Guldenstaedt, 1770 (Mammalia: Carnivora) In Turkey, Şaki̇r Özkurt, Mustafa Sözen, Nuri̇ Yi̇ği̇t, Ercüment Çolak

Turkish Journal of Zoology

Karyological and morphological characteristics of a female Vormela peregusna captured from Gönen (Balıkesir) were examined. The diploid number of chromosomes (2n) 38, fundamental number (FN) 72, and the number of autosomal arms (NFa) 68. The X chromosome is medium-sized submetacentric. The morphological and karyological evaluations showed that Turkish peregusna is similar to Vormela peregusna syriacus from Syria.

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Age Variations In Microtus Guentheri Danford And Alston, 1880 (Mammalia: Rodentia) In Turkey, Mustafa Sözen, Ercüment Çolak, Nuri̇ Yi̇ği̇t, Şaki̇r Özkurt Jan 1999

Age Variations In Microtus Guentheri Danford And Alston, 1880 (Mammalia: Rodentia) In Turkey, Mustafa Sözen, Ercüment Çolak, Nuri̇ Yi̇ği̇t, Şaki̇r Özkurt

Turkish Journal of Zoology

The skull, teeth, phallus and bacula of Microtus guentheri specimens raised in the laboratory were investigated at different stages of postnatal development. The most of the cranial measurements attained those of adults on day 60. There were determined to be some morphological differences between the skulls of young and adult voles. The incisors and the molars began to erupt at 3 and 6 days, respectively. It was shown that there was no difference in respect to the phallic and bacular morphology between young and adults except for size. The proximal bacula became larger during the period between juvenile life and …

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Effects Of A Snake Venom And Some Hypometabolic Agents On The Substandard Gas-Oxygen Metabolism In Mice, Sh. I. Allamuratov, R. N. Ahmerov, K. T. Almatov, I. K. Kazakov Jan 1999

Effects Of A Snake Venom And Some Hypometabolic Agents On The Substandard Gas-Oxygen Metabolism In Mice, Sh. I. Allamuratov, R. N. Ahmerov, K. T. Almatov, I. K. Kazakov

Turkish Journal of Zoology

A lethal dose of the snake Vipera lebetina venom decreases the standard gas-oxygen metabolism of mice approximately threefold while its nonlethal dose does so twofold. The same effects on the gas-oxygen metabolism of mice were noted for lethal and nonlethal doses of aminooxyacetate (blocker of aminotransferases), catacin (antihypoxant), halothane (anesthetic agent) and serotonin (hypometabolic agent). It is concluded that the organism's physiologically reversible substandard metabolic (or vital hypometabolic) limit induced by different intoxications is approximately two times as low, and the irreversible substandard metabolic (or lethal hypometabolic) limit is three times as low as the level of the standard metabolism.

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Some Ultrastructural Observations On Cellular Interaction Between Trophectoderm And Uterine Epithelium During Preimplantation In Rat, Ramazan Demi̇r, İsmai̇l Üstünel, Necdet Demi̇r Jan 1999

Some Ultrastructural Observations On Cellular Interaction Between Trophectoderm And Uterine Epithelium During Preimplantation In Rat, Ramazan Demi̇r, İsmai̇l Üstünel, Necdet Demi̇r

Turkish Journal of Zoology

The blastocystic trophoblast cells consist of different types of cells according to their structural architecture and their functional specialisation: a) supporting, preventing and feeding functions; b) signalization, polarisation, and depolarisation functions between blastocyst and uterine; c) immunological acceptance or rejection and secreting functions. The aim of this study was to investigate the ultrastructure of cellular interaction between mural trophoblast/trophectoderm cells of blastocyst and uterine epithelium in rat. Tissue samples obtained from rats on day 5 of pregnancy were studied ultarstructurally. In contrast to the polar trophoblast cells exhibiting degeneration according to implantataion progress, some mural trophoblast cells play an important …

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Investigation Of The Selectivity Of Multifilament And Monofilament Gill Nets On Pike Perch (Stizostedion Lucioperca (L., 1758)) Fishing In Lake Beyşehir, İsmet Balik Jan 1999

Investigation Of The Selectivity Of Multifilament And Monofilament Gill Nets On Pike Perch (Stizostedion Lucioperca (L., 1758)) Fishing In Lake Beyşehir, İsmet Balik

Turkish Journal of Zoology

In this study, carried out in Lake Beyşehir, the selectivity of multifilament and monofilament gill nets used for pike perch fishing were investigated. Multifilament gill nets with 5 differenet mesh sizes and monofilament gill nets with 6 different mesh sizes were used during experimental fishing from October 1994 ve May 1996. According to the results, the common selection factor of multifilament gill nets was calculated to be 4.67 and 4.70 for monofilament gill nets.

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The Effects Of Methionine Supplementation To Soybean Meal (Sbm)-Based Diets On The Growth And Whole Body-Carcass Chemical Composition Of Tilapia (T. Zillii), Abdurrahman Polat Jan 1999

The Effects Of Methionine Supplementation To Soybean Meal (Sbm)-Based Diets On The Growth And Whole Body-Carcass Chemical Composition Of Tilapia (T. Zillii), Abdurrahman Polat

Turkish Journal of Zoology

The effects of supplementing soybean meal-based diets with methionine on the growth and carcass-whole body chemical composition of T. zillii were studied during a 62-day feeding trial. A control diet prepared for T. zillii was supplemented with five different levels of free methionine, 0.5%, 1%, 1.5%, 2% and 2.5% (the same amounts of ?-cellulose were removed). At the end of the study, the best growth rate and FCR were determined in the group fed a diet supplemented with 0.5% methionine (total 1.38% methionine+cystine). Statistically significant effects of methionine supplementation on whole body protein content were determined (p

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