Effects of personality traits on growth and physiology of Oreochromis niloticus juveniles
ABSTRACT: To evaluate hematological and biochemical parameters after testing in a new environment, and the zootechnical performance of Oreochromis niloticus classified as proactive or reactive. In experiment 1, male Nile tilapia with an average weight of 128.33 ± 34.17 g were kept in a recirculating...
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Universidade Federal de Santa Maria
2024-11-01
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| Series: | Ciência Rural |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782025000300403&lng=en&tlng=en |
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| author | Ronald Kennedy Luz Isabela Fernanda Araujo Torres Fabio Aremil Costa dos Santos Camila Oliveira Paranhos Andre Lima Ferreira Walisson de Souza e Silva Caroline Teixeira Bonifácio Gisele Cristina Favero |
| author_facet | Ronald Kennedy Luz Isabela Fernanda Araujo Torres Fabio Aremil Costa dos Santos Camila Oliveira Paranhos Andre Lima Ferreira Walisson de Souza e Silva Caroline Teixeira Bonifácio Gisele Cristina Favero |
| author_sort | Ronald Kennedy Luz |
| collection | DOAJ |
| description | ABSTRACT: To evaluate hematological and biochemical parameters after testing in a new environment, and the zootechnical performance of Oreochromis niloticus classified as proactive or reactive. In experiment 1, male Nile tilapia with an average weight of 128.33 ± 34.17 g were kept in a recirculating aquaculture system (RAS). Immediately after classification, blood samples were collected from 20 reactive and 20 proactive animals. In experiment 2, 60 proactive and 60 reactive males were classified, with an average weight of 88.23 ± 21.59 g, which were divided into the following treatments: PT (40 proactive animals), RT (40 reactive) MT (20 proactive + 20 reactive ). Animals were fed twice daily for 90 days. In experiment 1, reactive animals had higher amounts of hemoglobin and cortisol and lower amounts of leukocytes detected. In experiment 2, weight gain was greater in proactive animals (PT) and reactive animals (RT); however, the best feed conversion was obtained in reactive animals. The survival rate was lower in the MT treatment group of animals. Hemoglobin and glucose had lower values for proactive animals and for those that were mixed, in the MT group. Cholesterol was higher in animals PT. It is concluded that variables such as hemoglobin, cortisol, leukocytes and cholesterol are more likely to undergo changes between personality traits. Furthermore, it can be concluded that reactive and proactive O. niloticus, grown in separate environments, have the same potential for weight gain; however, the food conversion of reactive ones is better. |
| format | Article |
| id | doaj-art-89a2cd91b2a34cfc8032e4d42dffce6f |
| institution | DOAJ |
| issn | 1678-4596 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Universidade Federal de Santa Maria |
| record_format | Article |
| series | Ciência Rural |
| spelling | doaj-art-89a2cd91b2a34cfc8032e4d42dffce6f2025-08-20T02:49:33ZengUniversidade Federal de Santa MariaCiência Rural1678-45962024-11-0155310.1590/0103-8478cr20240249Effects of personality traits on growth and physiology of Oreochromis niloticus juvenilesRonald Kennedy Luzhttps://orcid.org/0000-0002-1021-5772Isabela Fernanda Araujo Torreshttps://orcid.org/0000-0002-8645-2934Fabio Aremil Costa dos Santoshttps://orcid.org/0000-0001-5682-8040Camila Oliveira Paranhoshttps://orcid.org/0000-0003-2773-5501Andre Lima Ferreirahttps://orcid.org/0000-0001-6947-4675Walisson de Souza e Silvahttps://orcid.org/0000-0002-6693-2383Caroline Teixeira Bonifáciohttps://orcid.org/0000-0001-9682-8301Gisele Cristina Faverohttps://orcid.org/0000-0002-0978-9103ABSTRACT: To evaluate hematological and biochemical parameters after testing in a new environment, and the zootechnical performance of Oreochromis niloticus classified as proactive or reactive. In experiment 1, male Nile tilapia with an average weight of 128.33 ± 34.17 g were kept in a recirculating aquaculture system (RAS). Immediately after classification, blood samples were collected from 20 reactive and 20 proactive animals. In experiment 2, 60 proactive and 60 reactive males were classified, with an average weight of 88.23 ± 21.59 g, which were divided into the following treatments: PT (40 proactive animals), RT (40 reactive) MT (20 proactive + 20 reactive ). Animals were fed twice daily for 90 days. In experiment 1, reactive animals had higher amounts of hemoglobin and cortisol and lower amounts of leukocytes detected. In experiment 2, weight gain was greater in proactive animals (PT) and reactive animals (RT); however, the best feed conversion was obtained in reactive animals. The survival rate was lower in the MT treatment group of animals. Hemoglobin and glucose had lower values for proactive animals and for those that were mixed, in the MT group. Cholesterol was higher in animals PT. It is concluded that variables such as hemoglobin, cortisol, leukocytes and cholesterol are more likely to undergo changes between personality traits. Furthermore, it can be concluded that reactive and proactive O. niloticus, grown in separate environments, have the same potential for weight gain; however, the food conversion of reactive ones is better.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782025000300403&lng=en&tlng=enbehaviorcoping styletilapiaproactive animalsreactive animals |
| spellingShingle | Ronald Kennedy Luz Isabela Fernanda Araujo Torres Fabio Aremil Costa dos Santos Camila Oliveira Paranhos Andre Lima Ferreira Walisson de Souza e Silva Caroline Teixeira Bonifácio Gisele Cristina Favero Effects of personality traits on growth and physiology of Oreochromis niloticus juveniles Ciência Rural behavior coping style tilapia proactive animals reactive animals |
| title | Effects of personality traits on growth and physiology of Oreochromis niloticus juveniles |
| title_full | Effects of personality traits on growth and physiology of Oreochromis niloticus juveniles |
| title_fullStr | Effects of personality traits on growth and physiology of Oreochromis niloticus juveniles |
| title_full_unstemmed | Effects of personality traits on growth and physiology of Oreochromis niloticus juveniles |
| title_short | Effects of personality traits on growth and physiology of Oreochromis niloticus juveniles |
| title_sort | effects of personality traits on growth and physiology of oreochromis niloticus juveniles |
| topic | behavior coping style tilapia proactive animals reactive animals |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782025000300403&lng=en&tlng=en |
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