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World shrimp farming revolution: Industry impact of domestication, breeding and widespread use of specific pathogen free Penaeus vannamei. In: Proceedings of the spec[r]
(1)Vietnam J Agri Sci 2017, Vol 15, No 7: 926-934 T p chí Khoa h c Nơng nghi p Vi t Nam 2017, 15(7): 926-934 www.vnua.edu.vn
1* 2
1
Khoa Th y S i h i h c Hu
2
ng Kinh t K thu t Qu ng Nam
Email*: quynhtram2007@gmail.com
Ngày g i bài: 15.05.2017 Ngày ch p nh n: 15.09.2017
Thí nghi c ti n hành v i nghi m th ng v i m (200 400 Postlarvae12/m2) v i
4 l n l p l i nh nh ng c a m ng, t l s ng l i nhu n c a tôm th nuôi
thâm canh t nh Qu ng Nam K t qu cho th y, v i m 200 400 postlarvae12/m2sau 90 ngày nuôi
kh t, t l s ng l i nhu ng 13,04 10,9 g/con; 15,55 20,66 t n/ha/v ; 65,24 56,86% 489,2 62,8 tri ng/ha/v
T khóa : L i nhu n, m t, tôm th chân tr ng, thâm canh, t l s ng
Effect of Stocking Density on Growth Performance, Survival and Economic Efficiency of Litopenaneus vannamei(Boone, 1931)
Cultured in Quang Nam Province
ABSTRACT
An experiment was carried out with two treatments corresponding to two stocking densities (200 and 400 postlarvae12/m2) with replicates to determine the effect of stocking density on growth performance, survival and
economic efficiency of intensive white leg shrimp farming in Quang Nam province The results showed that with density of 200 and 400 postlarvae12/m2 after 90 days of stocking, the final weight, yield, survival and profit were 13.04
(2)(3)Litopenaneus vannamei (B
T l s ng (%) =
T ng th ngày (kg) ×t l
S ng tơm th ×Kh ng
º
Ngày ni
Nghi m th c
NT200 NT400
Sáng Chi u Sáng Chi u
15 23,9 ± 0,99 26,7 ± 1,12 24,1 ± 1,28 26,9 ± 1,06 30 24,3 ± 0,86 26,3 ± 0,73 24,2 ± 0,86 26,7 ± 0,91 45 25,5 ± 0,92 27,8 ± 1,08 25,5 ± 0,80 27,2 ± 1,19 60 25,2 ± 0,80 26,3 ± 0,67 25,4 ± 0,95 26,7 ± 0,97 75 27,4 ± 0,77 29,6 ± 0,74 27,6 ± 1,09 30,0 ± 0,58 90 28,2± 1,03 30,5± 1,40 28,2± 0,65 31,0± 0,90
(4)Ngày nuôi
Nghi m th c
NT200 NT400
Sáng Chi u Sáng Chi u
15 5,2a ± 0,07 7,0a± 0,17 5,2a± 0,07 6,8b± 0,18
30 5,5a± 0,15 6,8a± 0,15 5,1b± 0,11 6,4b± 0,27 45 5,4a± 0,30 6,8a± 0,09 5,1b± 0,11 6,3b± 0,16
60 5,3a± 0,27 6,5a± 0,17 3,9b± 0,39 6,1b± 0,30
75 5,2a± 0,21 6,3a± 0,16 3,6b± 0,45 6,0b± 0,19
(5)Litopenaneus vannamei (B
Ngày nuôi Nghi m th c P
NT200 NT400
15 0,8a ± 0,08 0,6b ± 0,06 0,04
30 2,3a ± 0,17 2,2a ± 0,05 0,26
45 5,6a ± 0,38 4,5b ± 0,34 0,02 60 7,8a ± 0,23 6,6b ± 0,31 0,00
75 10,2a ± 0,44 8,7a ± 0,82 0,06
(6)(7)Litopenaneus vannamei (B
Ngày tu i Nghi m th c P
NT200 NT400
30 84,4a± 2,67 79,5b ± 0,93 0,04
45 79,4a ± 0,66 73,0b ± 1,53 0,00 60 72,6a ± 1,55 68,5b ± 1,64 0,03
75 69,2a ± 2,01 61,6b ± 0,85 0,00 90 65,2a ± 3,55 56,9b ± 1,95 0,02
Ch tiêu Nghi m th c P
NT200 NT400
su t (t n/ha/v ) 15,6b± 1,04 20,7a± 5,39 0,026
S ng tôm (t n/1500 m2/v ) 2,3± 0,24 3,1 ± 1,23 0,001
(8)Kh u hao 15.000 15.000
Chi phí khác 20.000 20.000
T ng thu 290.208 354.879
L i nhu n 73.387 9.425
T su t l i nhu n v nuôi (%) 33,84 2,72
Litopenaus vannamei
65-71.
Mena-Herrera A., C Gutierrez-Corona, Marco Linan-Cabello and H Sumano-Lopez (2006) Effects of stocking densities on growth of the pacific white shrimp (Litopenaeus vannamei) in Earthen Ponds
The Israeli Journal of Aquaculture - Bamidgeh, 58(3): 205-213
L vannamei
-1/2013: 42 - 48
Nguy n , V , Nguy n Vi t , Nguy n Quang Tu ng Th D
Th Nhinh, Tr n Th , V . nh ng c a m ng t l s ng c a tôm chân tr m b composit nhà (Litopenaeus vannamei) T p chí Khoa h c Phát tri n, 11(2): 223-229 Ponce-Palafox J.T., W Valenzuela-Quinonez, J.L
Arredondo-Figueroa, Manuel Garcia-Ulloa Gomez (2010) Effects of Density on growth and survival of Juvenile Pacific White Shrimp, Penaeus vannamei, Reared in Low salinity Well Water Journal of the world aquaculture society, 41(4).
Litopenaeus
vannamei 10
-juvenile2-3 cm
(9)Litopenaneus vannamei (B
(2006).
Nam Trung
V n H n Th
, Nguy
Sáng, Nguy n Quang Trung (2012). ng c a th i kh n c a tôm chân tr ng b m s ch b nh (Litopenaeus vannamei) T p chí Nơng nghi p Phát tri n nông thôn, B Nông nghi p & Phát tri n nông thôn, tr 66-70
Williams A.S., D.A Davis, C.R Arnold (1996) Density dependent growth and survival of Penaeus setiferus
and Penaeus vannameiin a semi-closed recirculating system World Aquac Soc 27: 107-112