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Silva VF, Tedesco M, Fontes ST, Owatari MS, Gatto YMG, Ferreira MB, Santos PCD, Costa GAC, Palmieri AF, Santos GGD, Saldaña-Serrano M, Bainy ACD, Martins ML, Mouriño JLP. Effects of supplementation with different zinc-based products on the growth and health of Nile tilapia. Fish Shellfish Immunol 2024; 149:109534. [PMID: 38575040 DOI: 10.1016/j.fsi.2024.109534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/14/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
Zinc is one of the essential microelements for the metabolism of animals. Zinc nanoparticles may have higher bioavailability due to their low specific surface area, facilitating absorption by fish. The present study aimed to evaluate the effects of supplementation with different zinc-based products on the growth and health of Nile tilapia Oreochromis niloticus. Zinc, in different sizes (nanoparticles or bulk) and forms (inorganic or organic), were used as a supplement in the tilapia diet at a dose of 15 mg kg feed-1 for 60 days. At the end of the feeding trial, production performance, hemato-immunological parameters, activity of antioxidant system enzymes, exposure to Streptococcus agalactiae and zinc concentration in the muscle were examined. After the bacterial challenge, the mean corpuscular hemoglobin concentration (MCHC) significantly increased in the fish treated with organic zinc, inorganic nano zinc, and organic nano zinc, while in the control group (inorganic zinc), MCHC remained unchanged. Regarding defense cells, dietary inorganic nano zinc increased the number of basophils (1.50 ± 1.10) compared to organic zinc (0.80 ± 0.90). Lymphocyte count increased after the challenge only in the organic zinc treatments (bulk and nanoparticles). Neutrophils decreased in the control (inorganic zinc) (2.20 ± 1.70) and inorganic nano zinc (2.60 ± 2.70) treatments after the challenge. When compared before and after the bacterial challenge, the plasma antimicrobial titer significantly increased after the bacterial challenge in all treatments. No significant differences were observed for total proteins, enzymes (SOD and CAT), cumulative survival and zinc deposition on fillet. In conclusion, organic zinc in nanoparticles or bulk size increased Nile tilapia innate defense during bacterial infection. However, the other parameters evaluated were not affected by zinc particle size or form (organic or inorganic), indicating that further evaluations should be conducted with organic zinc in nanoparticles or bulk size in the tilapia diet.
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Affiliation(s)
- Vitor Fernandes Silva
- AQUOS - Aquatic Organisms Health Laboratory, Department of Aquaculture, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Marília Tedesco
- AQUOS - Aquatic Organisms Health Laboratory, Department of Aquaculture, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Silvia Terra Fontes
- AQUOS - Aquatic Organisms Health Laboratory, Department of Aquaculture, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Marco Shizuo Owatari
- AQUOS - Aquatic Organisms Health Laboratory, Department of Aquaculture, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil.
| | - Yuri Malaquias Gauglitz Gatto
- AQUOS - Aquatic Organisms Health Laboratory, Department of Aquaculture, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Matheus Berlofa Ferreira
- AQUOS - Aquatic Organisms Health Laboratory, Department of Aquaculture, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Paola Capistrano Dos Santos
- AQUOS - Aquatic Organisms Health Laboratory, Department of Aquaculture, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Gabriel Antonio Cuzma Costa
- AQUOS - Aquatic Organisms Health Laboratory, Department of Aquaculture, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Adriano Faria Palmieri
- AQUOS - Aquatic Organisms Health Laboratory, Department of Aquaculture, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Gracienhe Gomes Dos Santos
- AQUOS - Aquatic Organisms Health Laboratory, Department of Aquaculture, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Miguel Saldaña-Serrano
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88037-000, Brazil
| | - Afonso Celso Dias Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, 88037-000, Brazil
| | - Maurício Laterça Martins
- AQUOS - Aquatic Organisms Health Laboratory, Department of Aquaculture, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - José Luiz Pedreira Mouriño
- AQUOS - Aquatic Organisms Health Laboratory, Department of Aquaculture, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
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