Effect of Stocking Density on Leuckocyte Reaction of Oncorhynchus mykiss (Walbaum, 1792)
This study evaluates the hematological response of rainbow trout fingerlings to crowding stress induced by high stocking densities, during a 33 days period. A number of 254 rainbow trout, with an average weight of 29.51 ± 1.32 g, were divided into four rearing units in order to create different stoc...
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| Format: | Article |
| Language: | English |
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Agroprint Timisoara
2023-09-01
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| Series: | Scientific Papers Animal Science and Biotechnologies |
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| Online Access: | https://spasb.ro/index.php/public_html/article/view/658 |
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| author | Victor Cristea Mirela (Creţu) Mocanu Alina Antache Angelica Docan Lorena Dediu Ion Săndiţa (Plăcintă) Marian Tiberiu Coadă |
| author_facet | Victor Cristea Mirela (Creţu) Mocanu Alina Antache Angelica Docan Lorena Dediu Ion Săndiţa (Plăcintă) Marian Tiberiu Coadă |
| author_sort | Victor Cristea |
| collection | DOAJ |
| description | This study evaluates the hematological response of rainbow trout fingerlings to crowding stress induced by high stocking densities, during a 33 days period. A number of 254 rainbow trout, with an average weight of 29.51 ± 1.32 g, were divided into four rearing units in order to create different stocking densities: in DS1-2.64 kg/m3, DS2-5.16 kg/m3, DS3-7.12 kg/m3 and in DS4-9.42 kg/m3. To determine the leukograma and also the absolute number of leukocytes, blood samples were collected after the experimental trial and used immediately to make smears. Physiological stress induced by maintenance under different stocking densities is reflected by rainbow trout leukograma. We can notice a decrease of absolute number of leukocytes, with direct implication of stocking density level, from 69.79±10.22 (x103cel./mm3) in DS1 to 46.34±9.83(x103cel./mm3) in DS4. In this experiment, the immune (defense) system has been influenced by stocking density, the general reduction of leukocytes number being a characteristic response to stressful conditions. |
| first_indexed | 2024-04-24T11:23:59Z |
| format | Article |
| id | doaj.art-da469e4791d745ca8bbd304ec0529a27 |
| institution | Directory Open Access Journal |
| issn | 1841-9364 2344-4576 |
| language | English |
| last_indexed | 2024-04-24T11:23:59Z |
| publishDate | 2023-09-01 |
| publisher | Agroprint Timisoara |
| record_format | Article |
| series | Scientific Papers Animal Science and Biotechnologies |
| spelling | doaj.art-da469e4791d745ca8bbd304ec0529a272024-04-11T03:50:09ZengAgroprint TimisoaraScientific Papers Animal Science and Biotechnologies1841-93642344-45762023-09-014523131658Effect of Stocking Density on Leuckocyte Reaction of Oncorhynchus mykiss (Walbaum, 1792)Victor Cristea0Mirela (Creţu) Mocanu1Alina Antache2Angelica Docan3Lorena Dediu4Ion Săndiţa (Plăcintă)5Marian Tiberiu Coadă6“Dunarea de Jos” University of Galaţi, Department of Aquaculture, Environmental Science and Cadastre, 800149- Galaţi, Dr. Alexandru Carnabel, 61, Romania“Dunarea de Jos” University of Galaţi, Department of Aquaculture, Environmental Science and Cadastre, 800149- Galaţi, Dr. Alexandru Carnabel, 61, Romania“Dunarea de Jos” University of Galaţi, Department of Aquaculture, Environmental Science and Cadastre, 800149- Galaţi, Dr. Alexandru Carnabel, 61, Romania“Dunarea de Jos” University of Galaţi, Department of Aquaculture, Environmental Science and Cadastre, 800149- Galaţi, Dr. Alexandru Carnabel, 61, Romania“Dunarea de Jos” University of Galaţi, Department of Aquaculture, Environmental Science and Cadastre, 800149- Galaţi, Dr. Alexandru Carnabel, 61, Romania“Dunarea de Jos” University of Galaţi, Department of Aquaculture, Environmental Science and Cadastre, 800149- Galaţi, Dr. Alexandru Carnabel, 61, Romania“Dunarea de Jos” University of Galaţi, Department of Aquaculture, Environmental Science and Cadastre, 800149- Galaţi, Dr. Alexandru Carnabel, 61, RomaniaThis study evaluates the hematological response of rainbow trout fingerlings to crowding stress induced by high stocking densities, during a 33 days period. A number of 254 rainbow trout, with an average weight of 29.51 ± 1.32 g, were divided into four rearing units in order to create different stocking densities: in DS1-2.64 kg/m3, DS2-5.16 kg/m3, DS3-7.12 kg/m3 and in DS4-9.42 kg/m3. To determine the leukograma and also the absolute number of leukocytes, blood samples were collected after the experimental trial and used immediately to make smears. Physiological stress induced by maintenance under different stocking densities is reflected by rainbow trout leukograma. We can notice a decrease of absolute number of leukocytes, with direct implication of stocking density level, from 69.79±10.22 (x103cel./mm3) in DS1 to 46.34±9.83(x103cel./mm3) in DS4. In this experiment, the immune (defense) system has been influenced by stocking density, the general reduction of leukocytes number being a characteristic response to stressful conditions.https://spasb.ro/index.php/public_html/article/view/658leukogramarainbow troutrecirculating aquaculture systemstocking density |
| spellingShingle | Victor Cristea Mirela (Creţu) Mocanu Alina Antache Angelica Docan Lorena Dediu Ion Săndiţa (Plăcintă) Marian Tiberiu Coadă Effect of Stocking Density on Leuckocyte Reaction of Oncorhynchus mykiss (Walbaum, 1792) Scientific Papers Animal Science and Biotechnologies leukograma rainbow trout recirculating aquaculture system stocking density |
| title | Effect of Stocking Density on Leuckocyte Reaction of Oncorhynchus mykiss (Walbaum, 1792) |
| title_full | Effect of Stocking Density on Leuckocyte Reaction of Oncorhynchus mykiss (Walbaum, 1792) |
| title_fullStr | Effect of Stocking Density on Leuckocyte Reaction of Oncorhynchus mykiss (Walbaum, 1792) |
| title_full_unstemmed | Effect of Stocking Density on Leuckocyte Reaction of Oncorhynchus mykiss (Walbaum, 1792) |
| title_short | Effect of Stocking Density on Leuckocyte Reaction of Oncorhynchus mykiss (Walbaum, 1792) |
| title_sort | effect of stocking density on leuckocyte reaction of oncorhynchus mykiss walbaum 1792 |
| topic | leukograma rainbow trout recirculating aquaculture system stocking density |
| url | https://spasb.ro/index.php/public_html/article/view/658 |
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