The effect of Artificial Vegetation Density on Growth and Growth related Parameters of Nile Tilapia, Oreochromis niloticus (L.) Fry

Mohsen Abdel-tawwab *(1)

Article Details

The effect of Artificial Vegetation Density on Growth and Growth related Parameters of Nile Tilapia, Oreochromis niloticus (L.) Fry

Authors:

Mohsen Abdel-tawwab *(1)

Publisher:

Trabzon Su Ürünleri Merkez Araştırma Enstitüsü

Journal:

Turkish Journal of Fisheries and Aquatic Sciences 2005 Vol.5 Issue 2

Document Type:

Article

Publication Date:

3/2005

Document Language:

Turkish

Document ID (Org No.):

2000838640

Frequency:

Quarterly

pISSN:

1303-2712

Keywords:

Abstract:

 

A growth response study was carried out to evaluate the influence of artificially submerged macrophytes on growth performance and supplemental feed utilization of Nile tilapia, Oreochromis niloticus (L.) fry under aquarium conditions. In glass aquarium (80 x 50 x 50 cm) filled with 140 litres of well-aerated tap water (25 to 28 oC), leafless stems of phragmites plant (0.7 m long and 0.5 cm diameter) were used at densities of 0, 25, 50, 75, 100 and 125 stems/m2. The final fish weight, weight gain and specific growth rate (SGR) decreased significantly with the increase in plant density (P0.05). The total lipid content was only decreased, while ash content increased significantly at plant density of 125 stems/m2. It could be recommended that submerged macrophytes, used as fish refuges from predators or for periphyton production, should be at low or moderate density, however, dense vegetation reduces significantly fish growth and feed utilization. 	 	 		 .

 

A growth response study was carried out to evaluate the influence of artificially submerged macrophytes on growth performance and supplemental feed utilization of Nile tilapia, Oreochromis niloticus (L.) fry under aquarium conditions. In glass aquarium (80 x 50 x 50 cm) filled with 140 litres of well-aerated tap water (25 to 28 oC), leafless stems of phragmites plant (0.7 m long and 0.5 cm diameter) were used at densities of 0, 25, 50, 75, 100 and 125 stems/m2. The final fish weight, weight gain and specific growth rate (SGR) decreased significantly with the increase in plant density (P0.05). The total lipid content was only decreased, while ash content increased significantly at plant density of 125 stems/m2. It could be recommended that submerged macrophytes, used as fish refuges from predators or for periphyton production, should be at low or moderate density, however, dense vegetation reduces significantly fish growth and feed utilization. 	 	 		 .

Article Details

The effect of Artificial Vegetation Density on Growth and Growth related Parameters of Nile Tilapia, Oreochromis niloticus (L.) Fry

Authors:

Mohsen Abdel-tawwab *(1)

Publisher:

Trabzon Su Ürünleri Merkez Araştırma Enstitüsü

Journal:

Turkish Journal of Fisheries and Aquatic Sciences 2005 Vol.5 Issue 2

Document Type:

Article

Publication Date:

3/2005

Document Language:

Turkish

Document ID (Org No.):

2000838640

Frequency:

Quarterly

pISSN:

1303-2712

Aquatic vegetation

Nile tilapia

growth

feed utilization

feed conversion ratio

protein efficiency ratio

protein growth rate

Issues

Article Details

Authors: Mohsen Abdel-tawwab *(1)

Publisher: Trabzon Su Ürünleri Merkez Araştırma Enstitüsü

Journal: Turkish Journal of Fisheries and Aquatic Sciences 2005 Vol.5 Issue 2

Document Type: Article

Publication Date: 3/2005

Document Language: Turkish

Document ID (Org No.): 2000838640

Frequency: Quarterly

pISSN: 1303-2712

Issues

Authors:

Mohsen Abdel-tawwab *(1)

Publisher:

Trabzon Su Ürünleri Merkez Araştırma Enstitüsü

Journal:

Turkish Journal of Fisheries and Aquatic Sciences 2005 Vol.5 Issue 2

Document Type:

Article

Publication Date:

3/2005

Document Language:

Turkish

Document ID (Org No.):

2000838640

Frequency:

Quarterly

pISSN:

1303-2712