COMPARITIVE REPRODUCTIVE BIOLOGY OF THE NILE TILAPIA OREOCHROMIS NILOTICUS ( L.), BLUE TIL API A, Oreochromis aureus ( Steind.) AND THEIR HYBRIDS IN LAKE EDKU, EGYPT

Bakhoum, Shnoudy A.

doi:10.21608/ejabf.2002.1753

Cited by 5 publications

(4 citation statements)

References 11 publications

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“…The obtained data may be resulted from death of two-third of samples treated with high concentration of EDTA and remaining sample being more tolerate to the harmful effect of EDTA. The same result of fecundity were obtained by previous studied which had been done on Nile tilapia, O. niloticus in Lake Edku and man-made Lake Abu-Zaabal and Damietta branch of the Nile River (Bakhoum, 2002;Shalloof &Salama, 2008 andEl-Kasheif et al, 2013). Also, the high mortality of O. niloticus adult females reared at high concentration of EDTA (0.3 g EDTA /L) may be due to the bad effect of EDTA on immune system during oogensis in spite of the same concentration have a good physical and biochemical effect in rearing fry and fingerling stages (Hassan, 2015).…”

Section: Discussionsupporting

confidence: 83%

Studies on fecundity and some physiological features for the ovaries of Nile Tilapia, Oreochromis niloticus treated with different concentrations of Ethylenediaminetetraacetic Acid (EDTA).

Ghanem

El-Sayed

Hassan

2016

Egypt. J. of Aquatic Biolo. and Fish.

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The present study aims to determine the effect of different concentrations of EDTA (0 g EDTA/L, 0.1 g EDTA/L and 0.3 g EDTA/L) on fecundity, survival rate and biochemical responses of the adult female of Nile tilapia, Oreochromis niloticus reared in glass tanks. Results showed that, the fecundity increases with the increasing in the concentrations of EDTA compared with control. Survival rate are affected by high concentration of EDTA (0.3 g EDTA/L) and reached to 33.3 % at the end of third week. However, an addition of EDTA to aquaria containing adult females increased the biochemical parameters at high concentration compared with control and low concentration samples except total proteins showed deceasing to lowest level. Statistical analysis mentioned a significant difference between the low concentration of EDTA and both of high concentration and control in all parameters. Otherwise, total carbohydrates exhibit non significant differences between all of them.

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Section: Discussionsupporting

confidence: 83%

Studies on fecundity and some physiological features for the ovaries of Nile Tilapia, Oreochromis niloticus treated with different concentrations of Ethylenediaminetetraacetic Acid (EDTA).

Ghanem

El-Sayed

Hassan

2016

Egypt. J. of Aquatic Biolo. and Fish.

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“…The present study's numbers were equally higher than those observed by Duponchelle and Legendre (2000) where absolute fecundity ranged between 160 to 717 oocytes in O. niloticus on Lake Ayame. The observed sizes of O. niloticus oocytes from the present study compared favourably with those in Bakhoum (2002) and Kariman & Salma (2008) at Lake Edku, and Abu-Zabal, Egypt.…”

Section: Niloticus O Andersoniisupporting

confidence: 77%

Aspects of Growth and Reproductive Biology among three Tilapiines on Lake Kariba

Nyirenda,

Katongo,

Mudenda

et al. 2024

Int. J. Res. Publ. Rev.

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The growth and reproductive biology for three Tilapiine species, Oreochromis andersonii, Oreochromis niloticus and Coptodon rendalli on Lake Kariba was studied during 2017. The introduction of O. niloticus on Lake Kariba has been widely associated with the decline in preponderance of indigenous Tilapiines. The aim of this study was to compare reproductive and growth aspects between exotic O. niloticus and two other indigenous tilapiine species. Samples were collected from four sites at Sinazongwe District, Zambia. Specimens were weighed (g), measured in total length (mm), sexed, and ovaries in ripe/ ripe-running stages collected then preserved in 5% formalin solution. Scales were also collected from specimens and used in aging the fish. The von Bertalanffy growth functions (VBGF) for O. andersonii, O. niloticus and C. rendalli revealed intrinsic growth rates (K) of 0.147yr-1, 0.180yr-1 and 0.791yr-1, respectively. The growth performance index (Φ') was highest in C. rendalli (4.98), then O. niloticus (4.58) and least in O. andersonii (4.36). The average observed fecundity for C. rendalli was 5,135 oocytes, ranging between 3,828-6,941oocytes; lower fecundities of 2,923 (1,455) oocytes and 1,650 (934-3,062) oocytes were respectively observed for O. niloticus and O. andersonii. The differences in fecundity were significant, p<0.05, [ANOVA: F (2,18) = 23.80; p=0.000]. Coptodon rendalli exhibited stronger growth and reproductive characteristics than O. niloticus and O. andersonii, respectively.

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“…Many documented studies on Oreochromis niloticus's reproductive biology have been conducted in various locations. These include the study by Bakhoum (2002) in Lake Edku, Egypt; Shalloof and Salama (2008) in Abu Zabal Lake, Egypt; Hipro (2013) in Lake Beseka, Ethiopia; and Khallaf et al (2020) in Egypt's Bahr Shebeen Canal Delta. There has been little research on Lake Nasser, and features such as fish body weight, filleting yield, and flesh quality-especially in Lake Nubia-have not received much attention in Sudan.…”

Section: )mentioning

confidence: 99%

A Comparison of the Reproductive Patterns of Oreochromis niloticus from Two Distinct Locations: Wadi Halfa, Sudan, and Aswan, Egypt

AbouelFadl et al.

2024

Egypt. J. of Aquatic Biolo. and Fish.

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COMPARITIVE REPRODUCTIVE BIOLOGY OF THE NILE TILAPIA OREOCHROMIS NILOTICUS ( L.), BLUE TIL API A, Oreochromis aureus ( Steind.) AND THEIR HYBRIDS IN LAKE EDKU, EGYPT

Cited by 5 publications

References 11 publications

Studies on fecundity and some physiological features for the ovaries of Nile Tilapia, Oreochromis niloticus treated with different concentrations of Ethylenediaminetetraacetic Acid (EDTA).

Studies on fecundity and some physiological features for the ovaries of Nile Tilapia, Oreochromis niloticus treated with different concentrations of Ethylenediaminetetraacetic Acid (EDTA).

Aspects of Growth and Reproductive Biology among three Tilapiines on Lake Kariba

A Comparison of the Reproductive Patterns of Oreochromis niloticus from Two Distinct Locations: Wadi Halfa, Sudan, and Aswan, Egypt

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