The on-farm trials of the rotational prawn-rice farming in a semi-deep water area

Lam My Lan, Jean-Claude Micha, Duong Nhut Long, Tran Thanh Hai

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

The on-farm trials of rotational rice-prawn farming in a semi-deep water area in the Mekong Delta of Vietnam was carried out in six rice fields (0.7-1.0 ha) to evaluate the production and economic efficiency of using low and high cost feed on prawn culture in paddies at different densities. Two stocking densities of 4 and 5 PL/m2 were investigated. Two treatments of feed types (pellets only or a combination of pellets, trash fish, and snail meat) were applied at stocking 4 PL/m2. At the treatment of 5 PL/m2, prawns were fed a combination of pellets, trash fish, and snail meat. Prawns were stocked in the mid-April and harvested in mid-November before the next dry season rice crop. Rice farming was started 3 to 5 days after prawn harvesting. By cull harvesting during the culture period, final mean weights of prawn ranged from 47.2 to 57.2 g/prawn and the male:female ratio at harvesting was 2.5:1.0. The prawn yield of treatment 5 PL/m2 was highest (630 ± 22 kg/ha). Net profits in treatments using the combination of pellets, trash fish, and snail meat were 861 ± 193 US$/ha to 1,019 ± 25 US$/ha for the prawn crop and 1,393 ± 71 US$/ha to 1,576 ± 180 US$/ha for the whole system (prawn crop + dry rice crop) and significantly higher than in treatment using pellet only (P <0.05). Prawns fed on pellets or a combination of pellets and snail meat both offer similar results in terms of production and economics. The dry rice crop offered high cost benefit ratio (2.29-2.33) with low operating cost (414-434 USD/ha) and it made a better use in sustainable rice fields through the rotational rice-prawn system.

langue originaleAnglais
Pages (de - à)168-183
Nombre de pages16
journalJournal of Applied Aquaculture
Volume20
Numéro de publication3
Les DOIs
étatPublié - 2008

Empreinte digitale

shrimp
rice
deep water
farming systems
farm
meat
farms
snail
snail meat
pellets
crop
water
fish meat
paddy field
prawn culture
fish
paddies
crops
stocking density
economics

Citer ceci

Lan, Lam My ; Micha, Jean-Claude ; Long, Duong Nhut ; Hai, Tran Thanh. / The on-farm trials of the rotational prawn-rice farming in a semi-deep water area. Dans: Journal of Applied Aquaculture. 2008 ; Vol 20, Numéro 3. p. 168-183.
@article{9134be81aef6432a8d33e844e0888a36,
title = "The on-farm trials of the rotational prawn-rice farming in a semi-deep water area",
abstract = "The on-farm trials of rotational rice-prawn farming in a semi-deep water area in the Mekong Delta of Vietnam was carried out in six rice fields (0.7-1.0 ha) to evaluate the production and economic efficiency of using low and high cost feed on prawn culture in paddies at different densities. Two stocking densities of 4 and 5 PL/m2 were investigated. Two treatments of feed types (pellets only or a combination of pellets, trash fish, and snail meat) were applied at stocking 4 PL/m2. At the treatment of 5 PL/m2, prawns were fed a combination of pellets, trash fish, and snail meat. Prawns were stocked in the mid-April and harvested in mid-November before the next dry season rice crop. Rice farming was started 3 to 5 days after prawn harvesting. By cull harvesting during the culture period, final mean weights of prawn ranged from 47.2 to 57.2 g/prawn and the male:female ratio at harvesting was 2.5:1.0. The prawn yield of treatment 5 PL/m2 was highest (630 ± 22 kg/ha). Net profits in treatments using the combination of pellets, trash fish, and snail meat were 861 ± 193 US$/ha to 1,019 ± 25 US$/ha for the prawn crop and 1,393 ± 71 US$/ha to 1,576 ± 180 US$/ha for the whole system (prawn crop + dry rice crop) and significantly higher than in treatment using pellet only (P <0.05). Prawns fed on pellets or a combination of pellets and snail meat both offer similar results in terms of production and economics. The dry rice crop offered high cost benefit ratio (2.29-2.33) with low operating cost (414-434 USD/ha) and it made a better use in sustainable rice fields through the rotational rice-prawn system.",
keywords = "Freshwater prawn, Macrobrachium rosenbergii, On-farm trial, Rotational rice-prawn system, Semi-deep water area",
author = "Lan, {Lam My} and Jean-Claude Micha and Long, {Duong Nhut} and Hai, {Tran Thanh}",
year = "2008",
doi = "10.1080/10454430802329655",
language = "English",
volume = "20",
pages = "168--183",
journal = "Journal of Applied Aquaculture",
issn = "1045-4438",
publisher = "Taylor & Francis",
number = "3",

}

The on-farm trials of the rotational prawn-rice farming in a semi-deep water area. / Lan, Lam My; Micha, Jean-Claude; Long, Duong Nhut; Hai, Tran Thanh.

Dans: Journal of Applied Aquaculture, Vol 20, Numéro 3, 2008, p. 168-183.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - The on-farm trials of the rotational prawn-rice farming in a semi-deep water area

AU - Lan, Lam My

AU - Micha, Jean-Claude

AU - Long, Duong Nhut

AU - Hai, Tran Thanh

PY - 2008

Y1 - 2008

N2 - The on-farm trials of rotational rice-prawn farming in a semi-deep water area in the Mekong Delta of Vietnam was carried out in six rice fields (0.7-1.0 ha) to evaluate the production and economic efficiency of using low and high cost feed on prawn culture in paddies at different densities. Two stocking densities of 4 and 5 PL/m2 were investigated. Two treatments of feed types (pellets only or a combination of pellets, trash fish, and snail meat) were applied at stocking 4 PL/m2. At the treatment of 5 PL/m2, prawns were fed a combination of pellets, trash fish, and snail meat. Prawns were stocked in the mid-April and harvested in mid-November before the next dry season rice crop. Rice farming was started 3 to 5 days after prawn harvesting. By cull harvesting during the culture period, final mean weights of prawn ranged from 47.2 to 57.2 g/prawn and the male:female ratio at harvesting was 2.5:1.0. The prawn yield of treatment 5 PL/m2 was highest (630 ± 22 kg/ha). Net profits in treatments using the combination of pellets, trash fish, and snail meat were 861 ± 193 US$/ha to 1,019 ± 25 US$/ha for the prawn crop and 1,393 ± 71 US$/ha to 1,576 ± 180 US$/ha for the whole system (prawn crop + dry rice crop) and significantly higher than in treatment using pellet only (P <0.05). Prawns fed on pellets or a combination of pellets and snail meat both offer similar results in terms of production and economics. The dry rice crop offered high cost benefit ratio (2.29-2.33) with low operating cost (414-434 USD/ha) and it made a better use in sustainable rice fields through the rotational rice-prawn system.

AB - The on-farm trials of rotational rice-prawn farming in a semi-deep water area in the Mekong Delta of Vietnam was carried out in six rice fields (0.7-1.0 ha) to evaluate the production and economic efficiency of using low and high cost feed on prawn culture in paddies at different densities. Two stocking densities of 4 and 5 PL/m2 were investigated. Two treatments of feed types (pellets only or a combination of pellets, trash fish, and snail meat) were applied at stocking 4 PL/m2. At the treatment of 5 PL/m2, prawns were fed a combination of pellets, trash fish, and snail meat. Prawns were stocked in the mid-April and harvested in mid-November before the next dry season rice crop. Rice farming was started 3 to 5 days after prawn harvesting. By cull harvesting during the culture period, final mean weights of prawn ranged from 47.2 to 57.2 g/prawn and the male:female ratio at harvesting was 2.5:1.0. The prawn yield of treatment 5 PL/m2 was highest (630 ± 22 kg/ha). Net profits in treatments using the combination of pellets, trash fish, and snail meat were 861 ± 193 US$/ha to 1,019 ± 25 US$/ha for the prawn crop and 1,393 ± 71 US$/ha to 1,576 ± 180 US$/ha for the whole system (prawn crop + dry rice crop) and significantly higher than in treatment using pellet only (P <0.05). Prawns fed on pellets or a combination of pellets and snail meat both offer similar results in terms of production and economics. The dry rice crop offered high cost benefit ratio (2.29-2.33) with low operating cost (414-434 USD/ha) and it made a better use in sustainable rice fields through the rotational rice-prawn system.

KW - Freshwater prawn

KW - Macrobrachium rosenbergii

KW - On-farm trial

KW - Rotational rice-prawn system

KW - Semi-deep water area

UR - http://www.scopus.com/inward/record.url?scp=67649148464&partnerID=8YFLogxK

U2 - 10.1080/10454430802329655

DO - 10.1080/10454430802329655

M3 - Article

VL - 20

SP - 168

EP - 183

JO - Journal of Applied Aquaculture

JF - Journal of Applied Aquaculture

SN - 1045-4438

IS - 3

ER -