Dietary zinc requirement of juvenile stinging catfish Heteropneustes fossilis based on growth performance, haematology, and tissue mineral composition
This investigation was done to determine how much zinc (Zn) the stinging catfish, Heteropneustes fossilis, needs in its diet. Five isonitrogenous (34.5% protein) and isolipidic (6.0% lipid) diets were prepared to contain graded levels of Zn (0, 10, 20, 30, and 40 mg kg−1), supplied as zinc sulfate (...
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| Format: | Article |
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Elsevier
2024-04-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024044530 |
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| author | Muslima Akter Lima Md. Amzad Hossain Md. Rabiul Islam Md. Nur Amin Mukul Taslima Akter |
| author_facet | Muslima Akter Lima Md. Amzad Hossain Md. Rabiul Islam Md. Nur Amin Mukul Taslima Akter |
| author_sort | Muslima Akter Lima |
| collection | DOAJ |
| description | This investigation was done to determine how much zinc (Zn) the stinging catfish, Heteropneustes fossilis, needs in its diet. Five isonitrogenous (34.5% protein) and isolipidic (6.0% lipid) diets were prepared to contain graded levels of Zn (0, 10, 20, 30, and 40 mg kg−1), supplied as zinc sulfate (ZnSO4·7H2O), and referred to as Zn0, Zn10, Zn20, Zn30, and Zn40, respectively. A total of 600 fish (initial body weight: 1.41 ± 0.02 g) were stocked in 15 glass aquaria (40 fish/aquarium), each with 180 L water capacity. For ten weeks, each diet was hand fed to three groups of fish twice daily until they appeared satisfied. The highest weight gain and specific growth rate, and lowest feed conversion ratio were recorded in fish fed with a 30 mg Zn kg−1 diet. Zn contents in bone and muscle linearly increased up to 30 mg kg−1 Zn and then remained stable, while iron (Fe) and copper (Cu) contents in bone and muscle had an inverse pattern with the inclusion level of dietary Zn. Increasing dietary Zn levels up to 30 mg kg−1 was found to improve values of hematological parameters such as red blood cell (RBC), white blood cell (WBC), haemoglobin (Hb), and haematocrit (HCT). These values, however, decreased when the dietary Zn level was further increased. The serum alkaline phosphatase level was the highest in fish fed a diet containing 30 mg kg-1 of Zn. Regression analyses based on weight gain, specific growth rate, and bone and muscle Zn concentrations indicated that the optimum dietary Zn requirement for stinging catfish was in a range of 27.4–36.5 mg kg−1. |
| first_indexed | 2024-04-24T20:11:57Z |
| format | Article |
| id | doaj.art-54407973f11e43fe9b2820cfb6e998b1 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-24T20:11:57Z |
| publishDate | 2024-04-01 |
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| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-54407973f11e43fe9b2820cfb6e998b12024-03-23T06:25:25ZengElsevierHeliyon2405-84402024-04-01107e28422Dietary zinc requirement of juvenile stinging catfish Heteropneustes fossilis based on growth performance, haematology, and tissue mineral compositionMuslima Akter Lima0Md. Amzad Hossain1Md. Rabiul Islam2Md. Nur Amin Mukul3Taslima Akter4Department of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, BangladeshCorresponding author.; Department of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, BangladeshDepartment of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, BangladeshDepartment of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, BangladeshDepartment of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, BangladeshThis investigation was done to determine how much zinc (Zn) the stinging catfish, Heteropneustes fossilis, needs in its diet. Five isonitrogenous (34.5% protein) and isolipidic (6.0% lipid) diets were prepared to contain graded levels of Zn (0, 10, 20, 30, and 40 mg kg−1), supplied as zinc sulfate (ZnSO4·7H2O), and referred to as Zn0, Zn10, Zn20, Zn30, and Zn40, respectively. A total of 600 fish (initial body weight: 1.41 ± 0.02 g) were stocked in 15 glass aquaria (40 fish/aquarium), each with 180 L water capacity. For ten weeks, each diet was hand fed to three groups of fish twice daily until they appeared satisfied. The highest weight gain and specific growth rate, and lowest feed conversion ratio were recorded in fish fed with a 30 mg Zn kg−1 diet. Zn contents in bone and muscle linearly increased up to 30 mg kg−1 Zn and then remained stable, while iron (Fe) and copper (Cu) contents in bone and muscle had an inverse pattern with the inclusion level of dietary Zn. Increasing dietary Zn levels up to 30 mg kg−1 was found to improve values of hematological parameters such as red blood cell (RBC), white blood cell (WBC), haemoglobin (Hb), and haematocrit (HCT). These values, however, decreased when the dietary Zn level was further increased. The serum alkaline phosphatase level was the highest in fish fed a diet containing 30 mg kg-1 of Zn. Regression analyses based on weight gain, specific growth rate, and bone and muscle Zn concentrations indicated that the optimum dietary Zn requirement for stinging catfish was in a range of 27.4–36.5 mg kg−1.http://www.sciencedirect.com/science/article/pii/S2405844024044530Zinc requirementHeteropneustes fossilisGrowth performanceFeed conversion ratioHaematologyBone mineralization |
| spellingShingle | Muslima Akter Lima Md. Amzad Hossain Md. Rabiul Islam Md. Nur Amin Mukul Taslima Akter Dietary zinc requirement of juvenile stinging catfish Heteropneustes fossilis based on growth performance, haematology, and tissue mineral composition Heliyon Zinc requirement Heteropneustes fossilis Growth performance Feed conversion ratio Haematology Bone mineralization |
| title | Dietary zinc requirement of juvenile stinging catfish Heteropneustes fossilis based on growth performance, haematology, and tissue mineral composition |
| title_full | Dietary zinc requirement of juvenile stinging catfish Heteropneustes fossilis based on growth performance, haematology, and tissue mineral composition |
| title_fullStr | Dietary zinc requirement of juvenile stinging catfish Heteropneustes fossilis based on growth performance, haematology, and tissue mineral composition |
| title_full_unstemmed | Dietary zinc requirement of juvenile stinging catfish Heteropneustes fossilis based on growth performance, haematology, and tissue mineral composition |
| title_short | Dietary zinc requirement of juvenile stinging catfish Heteropneustes fossilis based on growth performance, haematology, and tissue mineral composition |
| title_sort | dietary zinc requirement of juvenile stinging catfish heteropneustes fossilis based on growth performance haematology and tissue mineral composition |
| topic | Zinc requirement Heteropneustes fossilis Growth performance Feed conversion ratio Haematology Bone mineralization |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024044530 |
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