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Articles 1 - 30 of 36
Full-Text Articles in Medicine and Health Sciences
Investigating The Effect Of Decontaminants On Microbiological And Chemical Properties Of Rainbow Trouts, Abdullah Di̇ki̇ci̇, Emi̇ne Özpolat, Sümeyye Betül Bozatli, Ahmet Koluman, Bahri̇ Patir, Mehmet Çalicioğlu
Investigating The Effect Of Decontaminants On Microbiological And Chemical Properties Of Rainbow Trouts, Abdullah Di̇ki̇ci̇, Emi̇ne Özpolat, Sümeyye Betül Bozatli, Ahmet Koluman, Bahri̇ Patir, Mehmet Çalicioğlu
Turkish Journal of Veterinary & Animal Sciences
This study was designed to determine the effect of decontamination on the shelf life of whole rainbow trouts. For this purpose 0.5% cetylpyridinium chloride (CPC), 10% trisodium phosphate (TSP), 2.5% acetic acid (AA), 2.5% lactic acid (LA), 1200 ppm acidified sodium chloride (ASC) and control (tap water) were used as decontaminants. After the decontamination process, the samples were stored in cold storage and subjected to microbiological and chemical analyzes on days 0, 3, 6, 9, 12 and 15. Mesophilic bacteria, psychrophilic bacteria, lactic acid bacteria, Pseudomonas spp., Enterobacteriaceae and coliform bacteria were enumerated for the evaluation of microbiological quality, whereas …
The Effect Of Hypoxia On Brain Cell Proliferation In Weakly Electric Fish, Petrocephalus Degeni, Kaitlin Klovdahl
The Effect Of Hypoxia On Brain Cell Proliferation In Weakly Electric Fish, Petrocephalus Degeni, Kaitlin Klovdahl
Senior Theses and Projects
Oxygen levels tend to remain at a steady state concentration in the Earth’s atmosphere, yet in some bodies of water, they can fluctuate and decrease drastically. Many organisms that inhabit the swamps, lakes, streams, and parts of the ocean where this occurs have evolved adaptations to manage this environmental uncertainty and continue normal oxygen consumption. The Lwamunda swamp in Uganda is chronically hypoxic, yet it is home to many species, including the electric fish Petrocephalus degeni. P. degeni are unusual by nature of their immense brain, and the Lwamunda swamp appears ill-suited for maintaining this large, metabolically active organ. To …
The Impacts Of Laurel (Laurus Nobilis) And Basil (Ocimum Basilicum) Essential Oils Onoxidative Stability And Freshness Of Sous-Vide Sea Bass Fillets, Burcu Öztürk Keri̇moğlu, Hülya Serpi̇l Kavuşan, Fatma Meltem Serdaroğlu
The Impacts Of Laurel (Laurus Nobilis) And Basil (Ocimum Basilicum) Essential Oils Onoxidative Stability And Freshness Of Sous-Vide Sea Bass Fillets, Burcu Öztürk Keri̇moğlu, Hülya Serpi̇l Kavuşan, Fatma Meltem Serdaroğlu
Turkish Journal of Veterinary & Animal Sciences
The purpose of this study was to highlight the effects of natural plant essential oils (EOs) on sous-vide sea bass (Dicentrarchus labrax) fillets. Three different treatments were prepared by addition of: 1) no essential oil (C), 2) laurel (Laurus nobilis) EO (L), and 3) basil (Ocimum basilicum) EO (B). In general, incorporation of the EOs did not cause significant changes in the proximate composition (P > 0.05). The addition of L caused a darker and more greenish-yellow colour, while addition of B did not have a considerable alteration in colour parameters. All the evaluated sensory parameters were within the acceptable ranges. …
Neuroanatomy Of The Blackspotted Rockskipper, Entomacrodus Striatus, Pooja Dayal
Neuroanatomy Of The Blackspotted Rockskipper, Entomacrodus Striatus, Pooja Dayal
Williams Honors College, Honors Research Projects
Here I characterized the central neuroanatomy of the Blackspotted Rockskipper, Entomacrodus striatus, native to French Polynesia. The neuroanatomy of E. striatus has not been studied prior to this paper. I used several histology and antibody staining techniques to accomplish this, including Crystal Violet, immunohistochemistry, immunofluorescence, and Bielschowsky’s Silver Nitrate staining. This paper describes the most successful techniques used, identifies major structures in the species’ neuroanatomy, and also explains why studying E. striatus is important in the future of vertebrate research.
The Effects Of Heparin Concentration, Storage Time, And Temperature On The Values Of Hematological Parameters In Cyprinus Carpio, Malgorzata Witeska, Justyna Biardzka, Joanna Kniaz
The Effects Of Heparin Concentration, Storage Time, And Temperature On The Values Of Hematological Parameters In Cyprinus Carpio, Malgorzata Witeska, Justyna Biardzka, Joanna Kniaz
Turkish Journal of Veterinary & Animal Sciences
The results of hematological analyses may be affected by preanalytical factors such as sampling procedure, type and concentration of anticoagulant, or conditions and time of blood storage. In the present study the effects of various concentrations of heparin (0-200 IU/cm3) and different times (2, 24, or 48 h) and temperatures (4 or 22 °C) of blood storage on the values of hematological parameters in Cyprinus carpio were evaluated. Increase in heparin concentration resulted in a decrease in frequency of erythroblasts, a reduction of leukocyte and thrombocyte counts, and a decrease in oxidative metabolic activity of phagocytes. Storage for 2 h …
Hematological Effects Of Etomidate And Tricaine In Common Carp, Malgorzata Witeska, Beata Teodorczuk, Katarzyna Lugowska
Hematological Effects Of Etomidate And Tricaine In Common Carp, Malgorzata Witeska, Beata Teodorczuk, Katarzyna Lugowska
Turkish Journal of Veterinary & Animal Sciences
Hematological effects of etomidate and tricaine at concentrations causing general anesthesia or sedation of carp juveniles were compared. Recovery of body balance took similar time in the case of both anesthetics, but fish treated with etomidate were depressed for several hours, while those subjected to tricaine immediately regained normal behavior. Immediately after exposure anesthetics caused minor hematological changes; the only statistically significant effects (decrease of hematocrit and plasma glucose) occurred after sedation with etomidate. One week after exposure a significant increase in mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration occurred in all groups of fish compared to the previous …
Microhabitat Use Affects Brain Size And Structure In Intertidal Gobies, Gemma E. White, Culum Brown
Microhabitat Use Affects Brain Size And Structure In Intertidal Gobies, Gemma E. White, Culum Brown
Culum Brown, PhD
The ecological cognition hypothesis poses that the brains and behaviours of individuals are largely shaped by the environments in which they live and the associated challenges they must overcome during their lives. Here we examine the effect of environmental complexity on relative brain size in 4 species of intertidal gobies from differing habitats. Two species were rock pool specialists that lived on spatially complex rocky shores, while the remainder lived on dynamic, but structurally simple, sandy shores. We found that rock pool-dwelling species had relatively larger brains and telencephalons in particular, while sand-dwelling species had a larger optic tectum and …
Pain In Aquatic Animals, Lynne U. Sneddon
Pain In Aquatic Animals, Lynne U. Sneddon
Lynne Sneddon, PhD
Recent developments in the study of pain in animals have demonstrated the potential for pain perception in a variety of wholly aquatic species such as molluscs, crustaceans and fish. This allows us to gain insight into how the ecological pressures and differential life history of living in a watery medium can yield novel data that inform the comparative physiology and evolution of pain. Nociception is the simple detection of potentially painful stimuli usually accompanied by a reflex withdrawal response, and nociceptors have been found in aquatic invertebrates such as the sea slug Aplysia. It would seem adaptive to have a …
Investigation Of Van Gogh-Like 2 Mrna Regulation And Localisation In Response To Nociception In The Brain Of Adult Common Carp (Cyprinus Carpio), Siobhan C. Reilly, Anja Kipar, David J. Hughes, John P. Quinn, Andrew R. Cossins, Lynne U. Sneddon
Investigation Of Van Gogh-Like 2 Mrna Regulation And Localisation In Response To Nociception In The Brain Of Adult Common Carp (Cyprinus Carpio), Siobhan C. Reilly, Anja Kipar, David J. Hughes, John P. Quinn, Andrew R. Cossins, Lynne U. Sneddon
Lynne Sneddon, PhD
The Van Gogh-like 2 (vangl2) gene is typically associated with planar cell polarity pathways, which is essential for correct orientation of epithelial cells during development. The encoded protein of this gene is a transmembrane protein and is highly conserved through evolution. Van Gogh-like 2 was selected for further study on the basis of consistent regulation after a nociceptive stimulus in adult common carp and rainbow trout in a microarray study. An in situ hybridisation was conducted in the brain of mature common carp (Cyprinus carpio), 1.5 and 3 h after a nociceptive stimulus comprising of an acetic acid injection to …
Clinical Anesthesia And Analgesia In Fish, Lynne U. Sneddon
Clinical Anesthesia And Analgesia In Fish, Lynne U. Sneddon
Lynne Sneddon, PhD
Fish have become a popular experimental model and companion animal, and are also farmed and caught for food. Thus, surgical and invasive procedures in this animal group are common, and this review will focus on the anesthesia and analgesia of fish. A variety of anesthetic agents are commonly applied to fish via immersion. Correct dosing can result in effective anesthesia for acute procedures as well as loss of consciousness for surgical interventions. Dose and anesthetic agent vary between species of fish and are further confounded by a variety of physiological parameters (e.g., body weight, physiological stress) as well as environmental …
The Efficacy Of Three Types Of Analgesic Drugs In Reducing Pain In The Rainbow Trout, Oncorhynchus Mykiss, Jessica J. Mettam, Lois J. Oulton, Catherine R. Mccrohan, Lynne U. Sneddon
The Efficacy Of Three Types Of Analgesic Drugs In Reducing Pain In The Rainbow Trout, Oncorhynchus Mykiss, Jessica J. Mettam, Lois J. Oulton, Catherine R. Mccrohan, Lynne U. Sneddon
Lynne Sneddon, PhD
Recent research has shown the possibility of pain perception in fish; therefore, the use of analgesia or “painkillers” should be considered for invasive procedures. However, there is relatively little information on the effectiveness of analgesic drugs nor on the appropriate dose for fish. This study assessed the efficacy of three types of drug: an opioid, buprenorphine, a non-steroidal anti-inflammatory drug (NSAID), carprofen and a local anaesthetic, lidocaine. Each drug was tested at three doses on rainbow trout that were noxiously stimulated and the most effective dose was also given to fish experiencing no pain to investigate side-effects. Ventilation rate and …
Metazoan Parasites Of Fish Species From Lake Sığırcı (Edirne, Turkey), Hafi̇ze Si̇bel Çolak
Metazoan Parasites Of Fish Species From Lake Sığırcı (Edirne, Turkey), Hafi̇ze Si̇bel Çolak
Turkish Journal of Veterinary & Animal Sciences
A total of 366 specimens of 10 fish species inhabiting Lake Sığırcı were examined between April 2009 and February 2010. Inside or outside of these fish, 33 parasite species were identified. From these parasites, 18 monogenean, 5 digenean trematode, 3 cestode, 3 acanthocephalan, 3 nematode, and 1 Mollusca: Bivalvia (glochidia) species were recorded. Diplostomum spp., Tylodelphys clavata, glochidia-larvae, and monogenean species were found to be common parasites in all the fish species examined. The highest prevalence and mean infection intensity with Diplostomum spp. were found in Lepomis gibbosus (prevalence 91.6%, mean intensity 5.6 individuals per fish) and in Scardinius erythrophthalmus …
Effects Of Pristane On Growth Of Pink Salmon (Oncorhynchus Gorbuscha), Brielle D. Kemis, Bonita Nelson
Effects Of Pristane On Growth Of Pink Salmon (Oncorhynchus Gorbuscha), Brielle D. Kemis, Bonita Nelson
STAR Program Research Presentations
Pristane is a naturally occurring hydrocarbon that is generated by copepods in marine ecosystems. Organisms that eat copepods do not readily metabolize pristane, which causes it to accumulate throughout the marine food web. Understanding how pristane affects marine fish is essential because pristane is often used as a bioindicator in lab studies and may be influencing results in those studies. Also, this hydrocarbon may significantly reduce growth of marine fish in the wild. A previous study indicated that pristane is an appetite suppressant and growth retardant in fish. However, the study implemented a feeding regime with unnaturally high levels of …
Clinical Anesthesia And Analgesia In Fish, Lynne U. Sneddon
Clinical Anesthesia And Analgesia In Fish, Lynne U. Sneddon
Veterinary Science and Medicine Collection
Fish have become a popular experimental model and companion animal, and are also farmed and caught for food. Thus, surgical and invasive procedures in this animal group are common, and this review will focus on the anesthesia and analgesia of fish. A variety of anesthetic agents are commonly applied to fish via immersion. Correct dosing can result in effective anesthesia for acute procedures as well as loss of consciousness for surgical interventions. Dose and anesthetic agent vary between species of fish and are further confounded by a variety of physiological parameters (e.g., body weight, physiological stress) as well as environmental …
The Effect Of Bleeding On Peripheral Blood And Head Kidney Hematopoietic Tissue In Common Carp (Cyprinus Carpio), Elzbieta Kondera, Aneta Dmowska, Monika Rosa, Malgorzata Witeska
The Effect Of Bleeding On Peripheral Blood And Head Kidney Hematopoietic Tissue In Common Carp (Cyprinus Carpio), Elzbieta Kondera, Aneta Dmowska, Monika Rosa, Malgorzata Witeska
Turkish Journal of Veterinary & Animal Sciences
Adverse environmental conditions (contamination of water with nitrite, pesticides, or other pollutants), nutritional deficiencies, bacterial and viral infections, and parasitic invasions may induce anemia in fish, in both natural and aquaculture conditions. Changes in hematological values and cellular composition of peripheral blood and head kidney hematopoietic tissue of bled common carp (Cyprinus carpio L.) were evaluated over a 4 week period post-bleeding (30% blood loss). The results showed that fish very quickly compensated for anemia. Erythrocyte count (RBC), hemoglobin concentration (Hb), and hematocrit (Ht) gradually increased to values significantly higher than they were before bleeding; this was accompanied by an …
The Efficacy Of Three Types Of Analgesic Drugs In Reducing Pain In The Rainbow Trout, Oncorhynchus Mykiss, Jessica J. Mettam, Lois J. Oulton, Catherine R. Mccrohan, Lynne U. Sneddon
The Efficacy Of Three Types Of Analgesic Drugs In Reducing Pain In The Rainbow Trout, Oncorhynchus Mykiss, Jessica J. Mettam, Lois J. Oulton, Catherine R. Mccrohan, Lynne U. Sneddon
Veterinary Science and Medicine Collection
Recent research has shown the possibility of pain perception in fish; therefore, the use of analgesia or “painkillers” should be considered for invasive procedures. However, there is relatively little information on the effectiveness of analgesic drugs nor on the appropriate dose for fish. This study assessed the efficacy of three types of drug: an opioid, buprenorphine, a non-steroidal anti-inflammatory drug (NSAID), carprofen and a local anaesthetic, lidocaine. Each drug was tested at three doses on rainbow trout that were noxiously stimulated and the most effective dose was also given to fish experiencing no pain to investigate side-effects. Ventilation rate and …
Disodium Edta Used As Anticoagulant Causes Hemolysis In Common Carp Blood, Malgorzata Witeska, Wioleta Wargocka
Disodium Edta Used As Anticoagulant Causes Hemolysis In Common Carp Blood, Malgorzata Witeska, Wioleta Wargocka
Turkish Journal of Veterinary & Animal Sciences
Disodium EDTA used as anticoagulant for common carp blood caused a significant increase and high variability in hematocrit readings comparing to the heparinized samples. Na2EDTA induced erythrocyte swelling, causing cell membrane disruption (hemolysis). The nuclei released from destroyed cells changed shape from oval to round, and underwent gradual swelling and vacuolation, followed by karyolysis. The degree of observed changes was similar at all Na2EDTA concentrations (0.1, 0.5, and 1.0 mg/mL); on the other hand, percentage of abnormal and destroyed cells showed considerable differences among blood sampled from various carp individuals. The obtained results revealed that Na2EDTA caused gradual damage to …
About Fish, Humane Society Institute For Science And Policy
About Fish, Humane Society Institute For Science And Policy
Aquaculture Collection
Although a number of fish species have been studied in their freshwater life stages, further research on the behavior and habitat requirements of ocean-going fish is required. While fishes have historically been regarded as more “primitive” than other vertebrate groups, Rodriguez et al concluded that several memory and learning systems of bony fishes are noticeably similar to those of reptiles, birds, and mammals. When animals as small and under appreciated as fish display complex mating systems, parental care, and demonstrate the ability to traverse significant distances using olfactory and celestial cues, it is clear that previously established definitions of intelligence …
The Effects Of Ichthyophthiriasis On Some Haematological Parameters In Common Carp, Malgorzata Witeska, Elzbieta Kondera, Katarzyna Lugowska
The Effects Of Ichthyophthiriasis On Some Haematological Parameters In Common Carp, Malgorzata Witeska, Elzbieta Kondera, Katarzyna Lugowska
Turkish Journal of Veterinary & Animal Sciences
The present study examined the haematological effects of ichthyophthiriasis in common carp. Blood was collected from 4 groups of juvenile carp: 1. healthy; 2. with minor symptoms of ichthyophthiriasis; 3. with severe symptoms of ichthyophthiriasis (moribund); survivors of ichthyophthiriasis after a 3-week recovery period. Blood was subjected to a standard haematological procedure and the following parameters were evaluated: haematocrit (Ht), haemoglobin concentration (Hb), erythrocyte (RBC) and leukocyte (WBC) counts, mean cell volume (MCV), mean cell haemoglobin (MCH), and mean cell haemoglobin concentration (MCHC). The differential leukocyte count and thrombocyte count were calculated using stained blood smears. No change in Ht …
Behavioural Analysis Of A Nociceptive Event In Fish: Comparisons Between Three Species Demonstrate Specific Responses, Siobhan C. Reilly, John P. Quinn, Andrew R. Cossins, Lynne U. Sneddon
Behavioural Analysis Of A Nociceptive Event In Fish: Comparisons Between Three Species Demonstrate Specific Responses, Siobhan C. Reilly, John P. Quinn, Andrew R. Cossins, Lynne U. Sneddon
Sentience Collection
Nociception is the sensory mechanism by which potentially harmful stimuli are detected in animals and humans. The behavioural responses to noxious stimulation have been studied in two fish species thus far. However, since species-specific differences are seen in mammals, more species need to be examined to determine whether nociceptive responses are generic in fish. The present study investigated the behavioural and respiratory response to an acute noxious or potentially painful stimulus in common carp (Cyprinus carpio), zebrafish (Danio rerio) and rainbow trout (Oncorhynchus mykiss). Behavioural parameters such as frequency of swimming, use of cover and any anomalous behaviour were measured …
Nociception In Fish: Stimulus–Response Properties Of Receptors On The Head Of Trout Oncorhynchus Mykiss, Paul J. Ashley, Lynne U. Sneddon, Catherine R. Mccrohan
Nociception In Fish: Stimulus–Response Properties Of Receptors On The Head Of Trout Oncorhynchus Mykiss, Paul J. Ashley, Lynne U. Sneddon, Catherine R. Mccrohan
Veterinary Science and Medicine Collection
This study examined stimulus–response properties of somatosensory receptors on the head of rainbow trout, Oncorhynchus mykiss, using extracellular recording from single cells in the trigeminal ganglion. Of 121 receptors recorded from 39 fish, 17 were polymodal nociceptors, 22 were mechanothermal nociceptors, 18 were mechanochemical receptors, 33 were fast adapting mechanical receptors and 31 were slowly adapting mechanical receptors. Mechanical thresholds were higher in polymodal nociceptors than in either slowly adapting or fast adapting mechanical receptors, whereas thermal thresholds of mechanothermal nociceptors were higher than those of polymodal nociceptors. Polymodal nociceptors and mechanochemical receptors gave similar responses to topical applications of …
Occurrence And Intensity Of Some Parasitic Worms In Acipenser Gueldenstaedti, A. Nudiventris And Huso Huso (Chondrostei: Acipenseridae) From The Southwest Of The Caspian Sea, Masoud Sattari, Baba Mokhayer
Occurrence And Intensity Of Some Parasitic Worms In Acipenser Gueldenstaedti, A. Nudiventris And Huso Huso (Chondrostei: Acipenseridae) From The Southwest Of The Caspian Sea, Masoud Sattari, Baba Mokhayer
Turkish Journal of Veterinary & Animal Sciences
Sturgeons are the most important fish in the Caspian Sea, but there are only a few reports about their parasite communities in the southern part of this sea. In this study, 102 samples of 3 sturgeon species, namely Acipenser gueldenstaedti (n = 78), A. nudiventris (n = 18) and Huso huso (n = 6), were caught from 3 geographical locations in the southwest of the Caspian Sea (Guilan Province, Iran) from April 1999 to February 2001. Eight worm species including 3 nematodes [Cucullanus sphaerocephalus, Eustrongylides excisus (L.) and Anisakis sp. (L.)], 1 cestode (Eubothrium acipenserinum), 2 acanthocephalans (Leptorhynchoides plagicephalus and …
Isolation Of Listeria Monocytogenes From Fish Intestines And Rapd Analysis, Hasan Basri̇ Ertaş, Engi̇n Şeker
Isolation Of Listeria Monocytogenes From Fish Intestines And Rapd Analysis, Hasan Basri̇ Ertaş, Engi̇n Şeker
Turkish Journal of Veterinary & Animal Sciences
One hundred and fifty fish caught from Keban Dam Lake were examined for the presence of Listeria monocytogenes. A random amplified polymorphic DNA (RAPD) assay using a random primer was performed to detect genetic variations among L. monocytogenes isolates. The selective enrichment procedure followed by selective isolation was used for listeria isolation from fish intestines. Ten (6.6%) L. monocytogenes were isolated and identified from fish intestines. Two different band profiles were obtained by the RAPD analysis of the isolates. The results indicated that the isolates might have originated from different sources, and fish contaminated with L. monocytogenes may cause serious …
The Evidence For Pain In Fish: The Use Of Morphine As An Analgesic, Lynne U. Sneddon
The Evidence For Pain In Fish: The Use Of Morphine As An Analgesic, Lynne U. Sneddon
Veterinary Science and Medicine Collection
This paper discusses the evidence for pain perception in fish and presents new data on morphine analgesia in fish. Recent anatomical and electrophysiological studies have demonstrated that fish are capable of nociception, the simple detection of a noxious, potentially painful stimulus and the reflex response to this. To prove pain perception, it must be demonstrated that an animal’s behaviour is adversely affected by a potentially painful event and this must not be a reflex response. The present study examined the acute effects of administering a noxious chemical to the lips of rainbow trout (Oncorhynchus mykiss) to assess what changes occurred …
The Effect Of Different Packaging Methods On Some Quality Criteria Of Marinated Fish, Özkan Özden, Taçnur Baygar
The Effect Of Different Packaging Methods On Some Quality Criteria Of Marinated Fish, Özkan Özden, Taçnur Baygar
Turkish Journal of Veterinary & Animal Sciences
This study aimed to examine the effects of different packaging methods on some quality criteria of marinated fish. The heads and bones of the fish studied were removed and the fish were filleted. Then they were placed in brine for marination. After that, the samples were divided into two groups, packaged in jars with vegetable oil or vacuum packed in polyethylene bags and then stored at +4 ±1 °C. Sensory, pH and total volatile basic nitrogene (TVB-N) analyses were performed every 15 days during storage. At the end of 120 days marinated fish (anchovy, horse mackerel, chub mackerel and sardine) …
The Effect Of Different Storage Time Periods In Cumin Paste On The Quality Of Barbus Esocinus Pastırma, Fi̇li̇z Kök, Ali̇ Arslan
The Effect Of Different Storage Time Periods In Cumin Paste On The Quality Of Barbus Esocinus Pastırma, Fi̇li̇z Kök, Ali̇ Arslan
Turkish Journal of Veterinary & Animal Sciences
The aim of this study was to investigate the effect of storage time in cumin paste on the microbiological, chemical and sensorial quality of pastırma, a pastrami-like meat product produced from, the Barbel fish, Barbus esocinus. Three groups of pastırma were produced. The groups were kept in cumin paste for 12, 24 and 48 h, respectively. After production, the pastırma was vacuum packed and stored for 90 d at 20 ^oC. Pastırma samples were analyzed for microbiological counts, moisture rate, pH value and sensory characteristics on days 1, 7, 14, 30, 45, 60 and 90 of storage. In the microbiological …
Comparison Of Fatty Acid Profiles Of Different Tissues Of Mature Trout (Salmo Trutta Labrax, Pallas, 1811) Caught From Kazandere Creek In The Çoruh Region, Erzurum, Turkey, N. Mevlüt Aras, H. İbrahi̇m Hali̇loğlu, Özer Ayik, Hasan Yeti̇m
Comparison Of Fatty Acid Profiles Of Different Tissues Of Mature Trout (Salmo Trutta Labrax, Pallas, 1811) Caught From Kazandere Creek In The Çoruh Region, Erzurum, Turkey, N. Mevlüt Aras, H. İbrahi̇m Hali̇loğlu, Özer Ayik, Hasan Yeti̇m
Turkish Journal of Veterinary & Animal Sciences
The fatty acid (FA) composition of some tissues of Salmo trutta labrax, Pallas, 1811 mature native freshwater wild salmon species caught from Kazandere creek in the Çoruh region in Turkey were investigated. Fatty acids profiles of muscle, liver, gonad, egg and adipose tissue were compared in terms of total and individual saturated and unsaturated fatty acids. The results showed that the highest total saturated fatty acid content was in the muscle (37.20 ± 1.13%) while the lowest value was in the egg (27.12 ± 2.53%), and the differences were significant (P < 0.05) among the tissues. Monounsaturated fatty acid contents (MUFA) were not significantly different (P > 0.05) for the tissues but n-3 polyunsaturated fatty acid …
Effects Of Different Concentrations Of Copper Alone And A Copper + Cadmium Mixture On The Accumulation Of Copper In The Gill, Liver, Kidney And Muscle Tissues Of Oreochromis Niloticus (L.), Baybars Sağlamti̇mur, Bedi̇i̇ Ci̇ci̇k, Cahi̇t Erdem
Effects Of Different Concentrations Of Copper Alone And A Copper + Cadmium Mixture On The Accumulation Of Copper In The Gill, Liver, Kidney And Muscle Tissues Of Oreochromis Niloticus (L.), Baybars Sağlamti̇mur, Bedi̇i̇ Ci̇ci̇k, Cahi̇t Erdem
Turkish Journal of Veterinary & Animal Sciences
Experiments were conducted in two series for 1, 7, 15 and 30 days. In the first series, fish were exposed to 0.1, 0.5, 1.0 and 5.0 ppm of copper and in the second series to 0.1 + 0.05, 0.5 + 0.1, 1.0 + 0.5 and 5.0 + 1.0 ppm of copper and cadmium mixtures. No mortalities were observed during the experimental period. Accumulation of copper in the tissues and organs increased with increasing concentrations of copper and with longer exposure periods. Copper accumulation associated with copper + cadmium mixtures in the gill, liver, kidney and muscle tissues varied with the …
Occurrence And Effects Of Diplostomum Sp. Infection In Eyes Of Acanthobrama Marmid In Keban Dam Lake, Elazığ, Turkey, Mustafa Dörücü, N. Di̇lsi̇z, M. C. James Grabbe
Occurrence And Effects Of Diplostomum Sp. Infection In Eyes Of Acanthobrama Marmid In Keban Dam Lake, Elazığ, Turkey, Mustafa Dörücü, N. Di̇lsi̇z, M. C. James Grabbe
Turkish Journal of Veterinary & Animal Sciences
Infection with the parasite Diplostomum sp. can lead to severe ocular pathology and may result in host mortalities in commercial fish farming. Here we show that such infection is rife in a major lake used for fishing in Turkey. In a study of Acanthobrama marmid fish in Keban Dam Lake, Elazığ, Turkey, we found the infection period was normally between May and September each year, and that the prevalence and abundance of eye lens parasites reached a maximum in September. Typical results of metacercariae occurrence in the fish eye included exophthalmia, local haemorrhage and lens cataract. There was a significant …
The Application Of Hypoxanthine Activity As A Quality Indicator Of Cold Stored Fish Burgers, Sühendan Mol, Nuray Erkan, Candan Varlik
The Application Of Hypoxanthine Activity As A Quality Indicator Of Cold Stored Fish Burgers, Sühendan Mol, Nuray Erkan, Candan Varlik
Turkish Journal of Veterinary & Animal Sciences
Seafoods are very perishable, and many different methods are used for the determination of their quality. Sensory and hypoxanthine values of cold stored trout burgers, which we prepared, were determined during a 28-day period. Burgers spoiled after the 21st day of storage. The TVB-N values were still very low when the burgers spoiled and the pH values decreased during their storage. Therefore total volatile bases nitrogen and pH analyses were not useful for the determination of the quality of trout burgers. There was a negative correlation between the sensory and the hypoxanthine values during the storage period. Thus, hypoxanthine analysis …