The production of plant protein diet, and determination of their effects on western white shrimp (Litopenaeus vannamei) growth indexes at earthen ponds

The effects of one diet contain of 42 percent soybean meal (experimental treatment with 38 percent crude protein) in comparison with commercial diet (control treatment with 39 percent crud protein) at 6 earthen ponds, each one with the area of 0.4 ha, ( 2 treatments and 3 replicates in each treatment) on growth indexes of western white shrimp (Litopenaeusvannamei) was determined. The initial weight of post larvae was 0.008±0.001g, with density of 25 ind/m2 . The mean of culture periode in the experimental treatment and control treatment was 115 dayes, The mean of growth rate (GR) in the experimental treatment and control treatment was 15.70±0.88g and 15.60±0.52 g, respectively and significant statistically difference was between those (p<0.05). The food conversion ratio (FCR), in the experimental treatment and control treatment was 1.80 ±0.08g and 1.76±0.06 g, respectively, and significant statiscally difference was between those (p<0.05). Specific growth rate (SGR) in the experimental treatment and control treatment was 2.38 ±0.03 percent and 2.38 ±0.04 percent, respectivelly and significant statiscally difference was between those (p<0.05). The average daily weight gain (ADG), in the experimental treatment and control treatment was 0.136 ±0.007g and 0.135±0.004 g respectivelly, and no significant statistically difference was between those (p>0.05).The net protein utilization (NPU) in the experimental treatment and control treatment was 17.05 ±0.38 percent and 11.80±0.26 percent respectivelly, and significant statistically difference was between those (p<0.05). The yield of shrimp in experimental treatment and control treatment was 2853.58 ±64.14 kg/ha and 2864.83±168.57kg/ha respectivelly, and significant statistically difference was between those (p<0.05). The survival in the experimental treatment and control treatment was 91 ±1.78 percent and 92±2.41 percent, and no significant statiscally difference was between those (p>0.05).The amount of diet consumption, in the experimental treatment and control treatment was 5144±112.23 kg and 5055±59.77 kg respectivelly, and significant statistically difference was between those (p<0.05). The price of 1 kg of plant diet and commercial diet computed 34.000 rials and 43.000 rials respectively. In the shrimp body analysis, crude protein percent, in the experimental treatment was more than control treatment and significant statistically difference was computed between those (p<0.05). Totally, the use of plant protein for the feeding of L.vannamei in the earthen pond, can decrease the cost of plant diet, 20 percent lower than commercial diet.

Bibliographic Details

Main Authors:	Ghorbani Vagheie, Reza, Matinfar, A., Ainjamshid, Kh., Hafezieh, M., Ghaednia, B., Zendehboudi, A.A., Gharibi, Gh., Mouhammadi, A.k.
Format:	Report biblioteca
Language:	Persian
Published:	Iranian Fisheries Science Research Institute 2016
Subjects:	Plant diet, Commercial diet, L.vannamei, Earthen Pond, Growth indexes, Litopenaeus vannamei, Protein, Diet, Western white shrimp,
Online Access:	http://hdl.handle.net/1834/13929
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