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2001

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Investigations Of Serratia Liquefaciens Infection In Rainbow Trout (Oncorhynchus Mykiss Walbaum), Seyi̇t Aydin, Zekai̇ Erman, Ömer Cevdet Bi̇lgi̇n Jan 2001

Investigations Of Serratia Liquefaciens Infection In Rainbow Trout (Oncorhynchus Mykiss Walbaum), Seyi̇t Aydin, Zekai̇ Erman, Ömer Cevdet Bi̇lgi̇n

Turkish Journal of Veterinary & Animal Sciences

This study was conducted to investigate Serratia liquefaciens infection in juvenile cultured rainbow trout (Oncorhynchus mykiss Walbaum) during June and July in 1996 about 20 days after flooding in three farms in Erzurum. Bacterial isolates were identified from each farm and tested to determine sensitivity against 18 chemotherapeutants. In addition to minimum bactericidal concentrations (MBC) of chloramine-T and potassium permanganate (KmnO4) were exposures of 17.07-20 mg/l for 1 h and 23.27 mg/l for 10 min. Infections caused fallen scales, bloody and swollen kidney, hyperaemic and pale regions in the liver, haemorrhagic spots in the gills and bloody exudate in the …

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Dietary Carbohydrate Level Influencing Feed Intake, Nutrient Utilisation And Plasma Glucose Concentration In The Rainbow Trout, Oncorhynchus Mykiss, Ahmet Adem Teki̇nay, Simon John Davies Jan 2001

Dietary Carbohydrate Level Influencing Feed Intake, Nutrient Utilisation And Plasma Glucose Concentration In The Rainbow Trout, Oncorhynchus Mykiss, Ahmet Adem Teki̇nay, Simon John Davies

Turkish Journal of Veterinary & Animal Sciences

A twelve-week nutrition trial was carried out to evaluate the efficacy of different carbohydrate levels on digestibility, feed intake, growth performance, carcass and muscle composition and plasma glucose level in the rainbow trout, Oncorhynchus mykiss. Three test diets were formulated using extruded wheat meal (15.3, 32.2 and 43.5%) as the carbohydrate source and fed rainbow trout (Initial Body Weight: 33.8 ± 0.46 g.). These were either restricted: LCR (Low Carbohydrate Restricted), MCR (Medium-Carbohydrate-Restricted) and HCR (High-Carbohydrate Restricted); or satiation: LCS (Low-Carbohydrate Satiation), MCS (Medium-Carbohydrate Satiation) and HCS (High-Carbohydrate Satiation) respectively. The aim of applying different feeding regimes was to quantify …

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Comparison Of Ovine Spermatozoal Morphological Features After Staining Of Fixation And Assessment Of Morphological Abnormalities In Dead/Live Spermatozoa, Yavuz Öztürkler, Alper Baran, Mi̇that Evecen, Kemal Ak, İ. Kamuran İleri̇ Jan 2001

Comparison Of Ovine Spermatozoal Morphological Features After Staining Of Fixation And Assessment Of Morphological Abnormalities In Dead/Live Spermatozoa, Yavuz Öztürkler, Alper Baran, Mi̇that Evecen, Kemal Ak, İ. Kamuran İleri̇

Turkish Journal of Veterinary & Animal Sciences

The objectives of this study were to (i) compare the effects of two staining techniques and one fixative solution on the morphological features of ram spermatozoa and (ii) evaluate the morphological features of dead/live spermatozoa by using Eosin-Nigrosin staining. The morphological features of raw spermatozoa were evaluated (by Phase Contrast microscopy) after staining with Eosin-Nigrosin mixture or Nigrosin (alone), or after fixation with Hancock's buffered formol saline solution. 42 raw pooled semen samples from 6 Kıvırcık rams were used. The percentages of spermatozoa with abnormal acrosomes and total morphological abnormalities averaged 3.97% and 14.78% in Hancock's solution, compared with averages …

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A Case Of Death In A Foal Caused By Salmonella Typhimurium, N. Yakut Özgür, Toru Anzai, Babür Cari̇oğlu, Funda Bağcigi̇l, Serkan İki̇z, Ati̇lla Ilgaz Jan 2001

A Case Of Death In A Foal Caused By Salmonella Typhimurium, N. Yakut Özgür, Toru Anzai, Babür Cari̇oğlu, Funda Bağcigi̇l, Serkan İki̇z, Ati̇lla Ilgaz

Turkish Journal of Veterinary & Animal Sciences

In this report, the isolation of a Salmonella typhimurium strain as pure culture from abcess foci on the liver, spleen, kidney, stomach and intestines, and lungs of an 8-month-old, male, Thoroughbred foal, which had died in a racehorse breeding farm, is presented. Heavy respiratory infection and prolonged antibiotic therapy were considered to be stress factors that played a significant role in this case.

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Rapid Identification Of Avian Salmonella Isolates By Air Thermal Cycler Amplification And Capillary Gel Electrophoresis, K. Tayfun Çarli, Vi̇ldan Caner, Ayşegül Eyi̇gör Jan 2001

Rapid Identification Of Avian Salmonella Isolates By Air Thermal Cycler Amplification And Capillary Gel Electrophoresis, K. Tayfun Çarli, Vi̇ldan Caner, Ayşegül Eyi̇gör

Turkish Journal of Veterinary & Animal Sciences

The possible use of a genus-specific polymerase chain reaction (PCR) for the identification of Salmonella colonies was tested on 14 reference strains and 38 clinical Salmonella strains isolated from chickens by the standard method of the National Poultry Improvement Plan and Auxiliary Provisions (NPIP), USDA, U.S.A. All the PCRs using primer pairs InvA1 and InvA2 (5) gave 281 bp amplification product specific for the Salmonella genus and produced results identical (100%) to those obtained with biochemical and serological methods. Thus, the genus-specific capillary PCR for the identification of a colony of Salmonellae from a selective agar plate was performed within …

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Effects Of Phorbol Myristate Acetate On The Liver: A Biochemical And Ultrastructural Study, Memduha Gülhal Bozkir, Ufuk Ö. Mete, Özkan Oğuz Jan 2001

Effects Of Phorbol Myristate Acetate On The Liver: A Biochemical And Ultrastructural Study, Memduha Gülhal Bozkir, Ufuk Ö. Mete, Özkan Oğuz

Turkish Journal of Veterinary & Animal Sciences

The effects of free radicals in the liver tissue of 20 mice were studied. The mice, separated into acute and chronic groups, were injected with phorbol myristate acetate (PMA) to trigger the release of free radicals. For evaluation of the effects of free radicals, malandialdehyde (MDA) measurement and electron microscopic examination were performed. The results showed that the level of lipid peroxide in the chronic PMA group was significantly higher than it was in the acute PMA group (P

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Seroprevalence Of Babesia Ovis In Awassi Sheep In Urfa, Turkey, Zi̇şan Emre, Ali̇ Düzgün, Mehmet İri̇adam, Hati̇ce Sert Jan 2001

Seroprevalence Of Babesia Ovis In Awassi Sheep In Urfa, Turkey, Zi̇şan Emre, Ali̇ Düzgün, Mehmet İri̇adam, Hati̇ce Sert

Turkish Journal of Veterinary & Animal Sciences

Seroprevalence of Babesia ovis in Awassi sheep was studied in Urfa and environs between November 1997 and October 1998. A total of 607 serum samples were collected from sheep in 12 different localities, and tested for the presence of antibodies to B. ovis by using an indirect ELISA. Blood smears were also prepared from 110 sheep. The overall prevalence of B. ovis infection was 41.02%. B. ovis was only detected in two blood smears examined (1.82%). A total of 86 ticks were collected from the sheep during the study. Of the ticks examined, 17.44% were Rhipicephalus turanicus, 54.65% were Haemophysalis …

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Effect Of Dietary Vitamin A And Zinc On Egg Yield And Some Blood Parameters Of Laying Hens, Şule Kaya, H. Derya Umucalilar, Seyfullah Hali̇loğlu, Hüdai̇ İpek Jan 2001

Effect Of Dietary Vitamin A And Zinc On Egg Yield And Some Blood Parameters Of Laying Hens, Şule Kaya, H. Derya Umucalilar, Seyfullah Hali̇loğlu, Hüdai̇ İpek

Turkish Journal of Veterinary & Animal Sciences

The purpose of the present study was to examine the effects of vitamin A and zinc interaction in laying hens fed on diets supplemented with two different levels of vitamin A (0, 10.000 IU/kg) in combination with five different levels of zinc (0, 25, 50, 100, 200 mg/kg) on egg yield, plasma and yolk concentration of zinc, and the levels of plasma triglyceride and phosphorus for 12 weeks. Egg production, egg weight, feed intake, body weight and feed efficiency did not differ among the groups. Plasma and yolk zinc concentrations were affected only by zinc supplementation. An interaction between vitamin …

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The Effect Of Dietary Phytase Supplementation At Different Levels On Tibial Bone Characteristics And Strength In Broilers, Neşe Kocabağli Jan 2001

The Effect Of Dietary Phytase Supplementation At Different Levels On Tibial Bone Characteristics And Strength In Broilers, Neşe Kocabağli

Turkish Journal of Veterinary & Animal Sciences

The influence of various levels of supplemental phytase on P and Ca availability was investigated using morphometric indices and the bone strength of tibiotarsi in broilers. Forty tibiotarsi were used from the Ross 308 male broilers fed corn-soybean meal based diets. Dietary treatments were: 1) Control: diet with DCP, 2) Negative control: control diet without DCP, 3) Control diet + 300 U of phytase/kg, 4) Control diet + 500 U of phytase/kg, 5) Control diet + 700 U of phytase/kg. There were no significant differences among the groups in the mean for tibiotarsal weight and length and also for the …

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The Effect Of Oviposition Time On Egg Quality And The Possibility Of Estimating Egg Shell Weight Using A Formula In Commercial Layers, Tüli̇n Aksoy, Muharrem Yilmaz, Yahya Tuncay Tuna Jan 2001

The Effect Of Oviposition Time On Egg Quality And The Possibility Of Estimating Egg Shell Weight Using A Formula In Commercial Layers, Tüli̇n Aksoy, Muharrem Yilmaz, Yahya Tuncay Tuna

Turkish Journal of Veterinary & Animal Sciences

The purposes of this study were to determine the effects of oviposition time on egg quality and to examine the possibility of estimating egg shell weight using a formula. The interactions in some egg quality measurements were also studied. During the experiment, 80 white and 64 brown layers were housed in cages and fed with a standard layer ration. The birds were given 17 hours of light per day throughout the experiment. Egg quality was checked four times with two week intervals. At each check, eggs were collected at 09.^{oo} , 12.^{oo} and 15.^{oo}, on consecutive days. Egg weight (EW), …

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Determination Of Some Population Parameters And Reproduction Period Of Whiting (Merlangius Merlangus Euxinus Nordmann, 1840) On The Trabzon-Yomra Coast In The Eastern Black Sea, Erhan Çi̇loğlu, Cemaletti̇n Şahi̇n, Mustafa Zengi̇n, Yaşar Genç Jan 2001

Determination Of Some Population Parameters And Reproduction Period Of Whiting (Merlangius Merlangus Euxinus Nordmann, 1840) On The Trabzon-Yomra Coast In The Eastern Black Sea, Erhan Çi̇loğlu, Cemaletti̇n Şahi̇n, Mustafa Zengi̇n, Yaşar Genç

Turkish Journal of Veterinary & Animal Sciences

In this study, the growth, age composition, sex ratio, condition factor and spawning period of whiting (Merlangius merlangus euxinus Nordmann, 1840) on the eastern part of the Trabzon-Yomra coast were investigated. During the study, a total of 1730 fish (1122 females and 608 males) ranging in age from group I to IX were examined. The chi squared test was used to calculate ratios between female and male specimens and no significant difference was found (P>0.05), and the relative growth length and the relative growth weight differences between females and males were not found to be statistically significant (P>0.05). …

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The Effect Of Starter Culture Use In Pastırma Production On The Properties Of End Product, Muhammet İrfan Aksu, Mükerrem Kaya Jan 2001

The Effect Of Starter Culture Use In Pastırma Production On The Properties Of End Product, Muhammet İrfan Aksu, Mükerrem Kaya

Turkish Journal of Veterinary & Animal Sciences

The effects of three different starter preparations (Staphylococcus carnosus, Staphylococcus carnosus + Lactobocillus pentosus and Staphylococcus xylosus + Lactobacillus sakei) on the end product of pastırma were investigated. In the production of pastırma samples, dry curing was performed using NaCl, KNO_3, glucose and saccarose, and starter culture was added together with curing compounds to the meat. The starter culture used affected the counts of total aeophilic mesophilic Micrococcus/Staphylococcus and lactic acid bacteria. The Enterobacteriaceae counts were generally found to be below the detectable level (

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The Quantitative Histomorphologic Growth Of The Lung Of The Quail (Coturnix Coturnix Japonica) At The Postnatal Stage: I. Parabronchi And Atria, Güner Bayram, Nari̇n Li̇man Jan 2001

The Quantitative Histomorphologic Growth Of The Lung Of The Quail (Coturnix Coturnix Japonica) At The Postnatal Stage: I. Parabronchi And Atria, Güner Bayram, Nari̇n Li̇man

Turkish Journal of Veterinary & Animal Sciences

In this research, which investigated the quantitative histomorphologic development of the parabronchi and atria of lungs at 1, 3, 7, 15, 30 and 60 days old, 60 male quail were used. The interparabronchial septa were absent among the lung units which consist of parabronchi, atria and gas exchange tissue. It was observed that on the 1^{st} day of hatching, the lungs had the same properties as adults and that there was no structural difference between the right and left lungs. The average diameter of atria rose according to the age and were 20.733±0.868 µ and 21.413±0.929 µ on the 1^{st} …

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Morphology Of The Spinal Cord In The Chicken, Duck And Pigeon, R. Meri̇h Haziroğlu, İ. Önder Orhan, Di̇nçer Yildiz, M. Erdem Gülti̇ken Jan 2001

Morphology Of The Spinal Cord In The Chicken, Duck And Pigeon, R. Meri̇h Haziroğlu, İ. Önder Orhan, Di̇nçer Yildiz, M. Erdem Gülti̇ken

Turkish Journal of Veterinary & Animal Sciences

The morphology of the spinal cord in 15 chickens, 15 ducks and 15 pigeons obtained from the Ankara region were examined. The spinal cord consisted of 15 cervical, 7 thoracic, 14 lumbosacral and 5 coccygeal segments (a total of 41 segments) in the chickens; 15 cervical, 8 thoracic, 16 lumbosacral and 5 coccygeal segments (a total of 44 segments) in the ducks and 13 cervical, 6 thoracic, 13 lumbosacral and 5 coccygeal segments (a total of 37 segments) in the pigeons. The cervical enlargement was composed of cervical segments 13-15 and thoracic segments 1-2 in the chickens; cervical segments 12-15 …

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An Investigation On Determining Protected (By-Pass) Protein Values Of Dairy Compounds Exposed To Different Treatments, Betül Zehra Sariçi̇çek Jan 2001

An Investigation On Determining Protected (By-Pass) Protein Values Of Dairy Compounds Exposed To Different Treatments, Betül Zehra Sariçi̇çek

Turkish Journal of Veterinary & Animal Sciences

This study was carried out to determine the degradation characteristics of dairy compound feeds (DCF) subjected to various treatments, (fat, F; tannic acid, TA; fat+tannic acid, (F+TA), as well as the combination of all levels of F and TA). In the in situ trial, ruminal dry matter (DM) degradabilities, organic matter (OM) degradabilities, crude protein (CP) degradabilities and degradation parameters belonging to degradability values (a, b, c, a+b) and pepsin soluble nitrogen contents of 25 DCF were subjected to F (1, 2, 3 and 4%) , TA (2.5, 5.0, 7.5 and 10%) and F+TA (a combination of all levels of …

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Production Characteristics Of Chios X Akkaraman F1 And B1 Crossbred Lambs. Ii. Fattening Performance, Slaughter And Carcass Characteristics, Fi̇kret Esen, Orhan Özbey Jan 2001

Production Characteristics Of Chios X Akkaraman F1 And B1 Crossbred Lambs. Ii. Fattening Performance, Slaughter And Carcass Characteristics, Fi̇kret Esen, Orhan Özbey

Turkish Journal of Veterinary & Animal Sciences

This study was carried out to investigate the fattening performance, and slaughter and carcass characteristics of Chios x Akkaraman F_1 and B_1 crossbred lambs. The data for the fattening study were obtained from 8 F_1 and 10 B_1 crossbred lambs. Five male lambs from each genotype were slaughtered to determine the slaughter and carcass characteristics. Lambs were fed with alfalfa hay and concentrates ad libitum in the fattening period. During the fattening period, the average daily live weight gains in crossbred F_1 and B_1 groups were 238.04 g and 232.07 g, and the amount of consumed concentrate feeds for 1 …

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Synchronization Of Oestrus And The Possibilities Of Improving Reproductive Performance By Using Progestagen And Different Doses Of Pmsg In Kıvırcık Ewes, Mehmet Koyuncu, Şebnem Kara Uzun, Leyla Şengül Jan 2001

Synchronization Of Oestrus And The Possibilities Of Improving Reproductive Performance By Using Progestagen And Different Doses Of Pmsg In Kıvırcık Ewes, Mehmet Koyuncu, Şebnem Kara Uzun, Leyla Şengül

Turkish Journal of Veterinary & Animal Sciences

This study was carried out in Kıvırcık ewes to increase reproductive performance and synchronize oestrus by using progestagen pessaries (40 mg FGA) and different doses of PMSG (0, 500 and 700 IU) during the breeding season. Free mating occurred in the herd and 76% of all births were completed in the first week. Fertility, single birth rates, fecundity and prolificacy in the three different groups were found to be 94.87%, 96.66% and 100.00%; 78.38%, 55.18% and 38.46% (P

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Comparison And Evaluation Of The Passive Haemagglutination Test And Elisa In Routine Screening Of Contagious Equine Metritis (Cem) In Mares With Endometritis Or Infertility, N. Yakut Özgür, Masashi Eguchi, Toru Anzai, Serkan İki̇z, Ati̇lla Ilgaz Jan 2001

Comparison And Evaluation Of The Passive Haemagglutination Test And Elisa In Routine Screening Of Contagious Equine Metritis (Cem) In Mares With Endometritis Or Infertility, N. Yakut Özgür, Masashi Eguchi, Toru Anzai, Serkan İki̇z, Ati̇lla Ilgaz

Turkish Journal of Veterinary & Animal Sciences

One hundred and twenty thoroughbred breeder mares with endometritis or infertility were investigated for the detection of antibodies to Taylorella equigenitalis by the passive haemagglutination (PHA) test and ELISA between 1997 and 1999 in the Marmara region and the two tests were compared. Fifty-eight (48.33 %) of 120 sera were found to be positive by the PHA test and 52 (43.33%) by ELISA. 22 of the sera were found to be positive by the PHA test reacted at 1/64 titer, 27 at 1/128, 7 at 1/256 and 2 at 1/512 titer. Sera from 44 mares were positive in both tests. …

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Cover And Contents Jan 2001

Cover And Contents

Turkish Journal of Veterinary & Animal Sciences

No abstract provided.

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Quantitative Estimation Of Ddt By Glc In Different Strains Of Musca Domestica L. By Using Hexane As Well As Diethyl Ether, Kahkashan Akhtar, Syed Naim-Ul-Hasan Naqvi Jan 2001

Quantitative Estimation Of Ddt By Glc In Different Strains Of Musca Domestica L. By Using Hexane As Well As Diethyl Ether, Kahkashan Akhtar, Syed Naim-Ul-Hasan Naqvi

Turkish Journal of Zoology

Estimation of DDT by GLC (gas liquid chromatography) in the PCSIR strain of Musca domestica L. Shows that 59.69 ng/fly DDT was found in the sample extracted with hexane and 55.74 ng/fly in the sample extracted with diethyl ether after treatment with 2.0 ug/fly. In the Holland strain, 18.3 ng/fly DDT was found in the sample extracted with hexane and 17.1 ng/fly in the sample extracted with diethyl ether. In the Malir strain 4.35 ng/fly DDT was found in the sample extracted with hexane and 1.29 ng/fly in the sample extracted with diethyl ether.

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Histological Investigations On The Neurosecretory Cells In Thoracic And Abdominal Ganglia Of Melanogryllus Desertus (Pallas, 1771) (Orthoptera; Gryllidae), Esen M. Aydemi̇r, Gürsel Ergen Jan 2001

Histological Investigations On The Neurosecretory Cells In Thoracic And Abdominal Ganglia Of Melanogryllus Desertus (Pallas, 1771) (Orthoptera; Gryllidae), Esen M. Aydemi̇r, Gürsel Ergen

Turkish Journal of Zoology

In this study, three kinds of neurosecretory cells, which are called A, B and C-types, have been described in the thoracic and abdominal ganglia of adult Melanogryllus desertus (PALLAS, 1771), (Orthoptera; Gryllidae) by using paraldehyde fuchsine and azan staining methods at the light microscope level.

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Studies On Sediment Toxicity Bioassays Using Chironomus Thummi K., 1911 Larvae, Levent Bat, Mehmet Akbulut Jan 2001

Studies On Sediment Toxicity Bioassays Using Chironomus Thummi K., 1911 Larvae, Levent Bat, Mehmet Akbulut

Turkish Journal of Zoology

The acute toxicity of zinc, copper and lead to freshwater dipteran Chironomus thummi larvae was evaluated by static bioassays, calculating the LC_{50} (lethality concentration for 50%). Mortality increased with increasing concentrations of zinc, copper and lead. The LC_{50}s of Zn, Cu and Pb for survival were 11.2, 19.1 and 14.3 µg g^{-1}, respectively. The results indicated that Zn had the greatest toxicity, followed by Pb and Cu. Individual weight increased with increasing Cu, Zn and Pb concentrations. The results are discussed and compared with those of other studies.

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The Effects Of Precocene Ii On The Fine Structure Of Corpus Allatum In Adult Female Anacridium Aegyptium L. (Orthoptera, Acrididae), Gürsel Ergen Jan 2001

The Effects Of Precocene Ii On The Fine Structure Of Corpus Allatum In Adult Female Anacridium Aegyptium L. (Orthoptera, Acrididae), Gürsel Ergen

Turkish Journal of Zoology

In this study, the effects of the antijuvenile hormone Precocene II on the corpus allatum of adult females of Anacridium aegyptium L. (Orthoptera) were investigated with electron microscopy. In the insects, topically treated with 500 µg precocene II, the corpora allata did not show marked atrophy or destruction. After 10 or 20 days of precocene II treatment, the ultrastructural changes of especially the nuclei, mitochondria, endoplasmic reticulum membranes, Golgi complexes and some other intracellular organelles in the gland cells, probably reflect a moderate sensitivity to this compound.

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A Study On The Ornithofauna Of Doğancı Pond In Alpu-Eskişehir, Eli̇f Erdoğdu Jan 2001

A Study On The Ornithofauna Of Doğancı Pond In Alpu-Eskişehir, Eli̇f Erdoğdu

Turkish Journal of Zoology

This study was carried to determine the ornithofauna of Doğancı Pond and vicinity, which is located in the Alpu District of Eskişehir province. The study area, which is situated on one of the migration routes for birds, has a natural pond and wetlands occurring around the pond during spring and fall. In the study period from August 1996 to August 1997, 86 species and 1 subspecies belonging to 36 families from 13 orders were identified in the area.

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Age And Growth Parameters Of Red Bandfish (Cepola Rubescens L., 1766) In İzmir Bay, Murat Kaya, Okan Özaydin, Hüseyi̇n Avni̇ Benli̇ Jan 2001

Age And Growth Parameters Of Red Bandfish (Cepola Rubescens L., 1766) In İzmir Bay, Murat Kaya, Okan Özaydin, Hüseyi̇n Avni̇ Benli̇

Turkish Journal of Zoology

The age and growth parameters of red bandfish (Cepola rubescens L.,1766) were determined from the specimens collected in İzmir Bay (Aegean Sea) between January 1996 and February 1997. Mean length at age data from otolith readings were used to estimate the growth parameters of the von Bertalanffy equation: for females, L_{\infity}=78.48 cm, K=0.17 y^{-1}, t_o=0.0972 y, W_{\infity}=110.00 g, K=0.10 y^{-1}, to=0.1033 y and for males L_{\infity}= 83.22 cm, K=0.16 y^{-1}, t_o=0.0888 y ; W_{\infity}=129.83, K=0.0818 y^{-1}, to=-0.4117 y. Length-weight relationships was estimated for males and females to be W=0.07723 L^{1.11217} and W=0.029154 L^{1.38434}, respectively. The observed mean total length and …

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Excretory Products Of Green Mussel Perna Viridis L. And Their Implications On Power Plant Operation, J. Gunasingh Masilamoni, Jayapaul Azariah, K. Nandakumar, K. Samuel Jesudoss, K. K. Satpathy, K. V. K Nair Jan 2001

Excretory Products Of Green Mussel Perna Viridis L. And Their Implications On Power Plant Operation, J. Gunasingh Masilamoni, Jayapaul Azariah, K. Nandakumar, K. Samuel Jesudoss, K. K. Satpathy, K. V. K Nair

Turkish Journal of Zoology

Excretion in marine animals is considered an important factor in assessing physiological status. Perna viridis, a widely distributed bivalve species, was found to be the dominant (>70%) organism in the seawater intake tunnel of Madras Atomic Power Station (MAPS). The excretion patterns (ammonia, nitrite, phosphate and fecal matter production) of three different size groups (4-5 cm, 6-7 cm, and 8-9 cm shell length) of P. viridis were studied in the laboratory at different salinities (15, 20, 25, 30 and 34 ppt). The amount of excreted products was positively related to the size of the mussels. At ambient salinity, the …

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A Cytogenetic Study On The Pelobates Syriacus (Amphibia, Anura) In Bursa-Turkey, İsmai̇l Hakki Uğurtaş, Berri̇n Tunca, Ni̇lüfer Aydemi̇r, Rahmi̇ Bi̇laloğlu Jan 2001

A Cytogenetic Study On The Pelobates Syriacus (Amphibia, Anura) In Bursa-Turkey, İsmai̇l Hakki Uğurtaş, Berri̇n Tunca, Ni̇lüfer Aydemi̇r, Rahmi̇ Bi̇laloğlu

Turkish Journal of Zoology

In this study, we karyotyped Pelobates syriacus and examined cytological aspects of the chromosomes. The diploid number of chromosomes was found to be 2n=26, with 11 submetacentric pairs, 1 metacentric pair, and 1 acrocentric pair.

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Some Biological Characteristics Of Silurus Triostegus Heckel, 1843 From Atatürk Dam Lake (Turkey), Seyi̇t Ahmet Oymak, Kemal Solak, Erhan Ünlü Jan 2001

Some Biological Characteristics Of Silurus Triostegus Heckel, 1843 From Atatürk Dam Lake (Turkey), Seyi̇t Ahmet Oymak, Kemal Solak, Erhan Ünlü

Turkish Journal of Zoology

In this study, some biological characteristics such as age and sex composition, growth in length and weight, age-length, age-weight and length-weight relationships, condition factor spawning time, age of sexual maturity, and fecundity of Silurus triostegus in Atatürk Dam lake were investigated. The percentage of females was 48.3% and that of males 57.7% out of 623 specimens belonging to age groups I-XI. Isometric growth patterns were proved from the length-weight relationships. It was estimated that the females had higher Lo (202.85 cm) and lower low K (0.046871) values than males (Lo 113.98 cm and K = 0.101972). Mean condition factors of …

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The Cladoceran And Copepod (Crustacea) Fauna Of İkizgöl (Bornova-İzmir), Mustafa Ruşen Ustaoğlu, Süleyman Balik, Cem Aygen, Di̇dem Özdemi̇r Mi̇s Jan 2001

The Cladoceran And Copepod (Crustacea) Fauna Of İkizgöl (Bornova-İzmir), Mustafa Ruşen Ustaoğlu, Süleyman Balik, Cem Aygen, Di̇dem Özdemi̇r Mi̇s

Turkish Journal of Zoology

With the aim of identifying cladoceran and copepod fauna of İkizgöl, which is situated 565 m above sea level on the southern slope of Yamanlar Mountain, plankton samples were collected monthly by plankton net horizontally and vertically, with a mesh size of 55µm between December 1994 and May 1996. Collected specimens were preserved in 4% formaldehyde. As a result, a total of 16 (12 cladoceran and 4 copepods) species were identified from İkizgöl.

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On The Age, Growth And Reproduction Of The Barbel, Barbus Plebejus Escherichi (Steindachner, 1897) In The Oltu Stream Of Çoruh River (Artvin-Turkey), Ayhan Yildirim, Orhan Erdoğan, Mustafa Türkmen Jan 2001

On The Age, Growth And Reproduction Of The Barbel, Barbus Plebejus Escherichi (Steindachner, 1897) In The Oltu Stream Of Çoruh River (Artvin-Turkey), Ayhan Yildirim, Orhan Erdoğan, Mustafa Türkmen

Turkish Journal of Zoology

In this study, the age, growth and reproduction properties of 627 barbels, Barbus plebejus escherichi (Steindachner, 1897), from Oltu Stream in the Çoruh River Basin were investigated during a period from August 1994 to July 1996. The age of this species ranged between age groups 1 and 10, the second age group being dominant. Individuals were composed of 64.59% males and 35.41% females. von Bertalanffy growth parameters and length-weight relationships were L_t=29.35x(1-e^{-0.139(t+1.640)}), W_t=281.11x(1-e^{-0.139(t+1.640)})^{2.843} W=0.0189.FL^{2.843} (r=0.96) in males and L_t=32.77x(1-e^{-0.116(t+1.891)}), W_t=392.10x(1-e^{-0.116(t+1.891)})^{2.911}, W=0.0152.FL^{2.911} (r=0.97) in females. Condition coefficients of males and females were calculated to be 1.221 and 1.220 respectively. Sexual maturity …

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