The effect of dietary protein to energy ratio and stocking densities on fish production, food web enhancement and economic benefit of gift Nile tilapia aquaculture in ponds

Research output: Chapter in Book/Report/Conference proceedingAbstractAcademic

Abstract

In non-lined ponds, natural food complements dietary P/E. We assessed the effect of lowering dietary PIE ratio with an increasing stocking density on performance of tilapia, food web enhancement and impact on pond nutrients. The experiment was conducted in a 2x2x2 factorial design: diet (CP:CE ratio 19 vs. 14 g.MJ-1); feeding level; and stocking density (2 vs 3 m-2) in 40 farmers' ponds. Biomass gain increased with a decreasing dietary PIE ratio and increasing stocking density). A negative accumulation of N and P in pond water was noticed for low stocking density ponds. Nitrogen gain in fish was higher for low P/E diet and also influenced by feed per square meter. At low P/E diet, the contribution of natural food to fish production was higher than for the high P/E diet. Net profit increased by lowering the dietary P/E ratio of the diet (2070 vs 1072 US$ ha-1 83 day-1).
Original languageEnglish
Title of host publicationBook of abstracts of the 12th Asian Fisheries & Aquaculture Forum (AFAF)
Subtitle of host publicationTransforming Asian Fisheries and Aquaculture for Sustainable Production and Nutrition
Pages315-315
Number of pages1
Publication statusPublished - 12 Apr 2019
Event12th Asian Fisheries & Aquaculture Forum (AFAF): Transforming Asian Fisheries and Aquaculture for Sustainable Production and Nutrition - Iloilo Convention Center, Iloilo, Philippines
Duration: 8 Apr 201912 Apr 2019
https://www.afsconferences.net/category/afaf/

Conference

Conference12th Asian Fisheries & Aquaculture Forum (AFAF)
CountryPhilippines
CityIloilo
Period8/04/1912/04/19
Internet address

Fingerprint

fish production
Oreochromis niloticus
stocking rate
dietary protein
food webs
aquaculture
economics
energy
diet
natural foods
Tilapia (Cichlidae)
feeding level
profits and margins
complement
farmers
biomass
nutrients
nitrogen
fish
water

Cite this

Kabir, K. A., Verdegem, M. C. J., Schrama, J. W., Verreth, J. A. J., & Phillips, M. J. (2019). The effect of dietary protein to energy ratio and stocking densities on fish production, food web enhancement and economic benefit of gift Nile tilapia aquaculture in ponds. In Book of abstracts of the 12th Asian Fisheries & Aquaculture Forum (AFAF): Transforming Asian Fisheries and Aquaculture for Sustainable Production and Nutrition (pp. 315-315)
Kabir, K.A. ; Verdegem, M.C.J. ; Schrama, J.W. ; Verreth, J.A.J. ; Phillips, Michael J. / The effect of dietary protein to energy ratio and stocking densities on fish production, food web enhancement and economic benefit of gift Nile tilapia aquaculture in ponds. Book of abstracts of the 12th Asian Fisheries & Aquaculture Forum (AFAF): Transforming Asian Fisheries and Aquaculture for Sustainable Production and Nutrition. 2019. pp. 315-315
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abstract = "In non-lined ponds, natural food complements dietary P/E. We assessed the effect of lowering dietary PIE ratio with an increasing stocking density on performance of tilapia, food web enhancement and impact on pond nutrients. The experiment was conducted in a 2x2x2 factorial design: diet (CP:CE ratio 19 vs. 14 g.MJ-1); feeding level; and stocking density (2 vs 3 m-2) in 40 farmers' ponds. Biomass gain increased with a decreasing dietary PIE ratio and increasing stocking density). A negative accumulation of N and P in pond water was noticed for low stocking density ponds. Nitrogen gain in fish was higher for low P/E diet and also influenced by feed per square meter. At low P/E diet, the contribution of natural food to fish production was higher than for the high P/E diet. Net profit increased by lowering the dietary P/E ratio of the diet (2070 vs 1072 US$ ha-1 83 day-1).",
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Kabir, KA, Verdegem, MCJ, Schrama, JW, Verreth, JAJ & Phillips, MJ 2019, The effect of dietary protein to energy ratio and stocking densities on fish production, food web enhancement and economic benefit of gift Nile tilapia aquaculture in ponds. in Book of abstracts of the 12th Asian Fisheries & Aquaculture Forum (AFAF): Transforming Asian Fisheries and Aquaculture for Sustainable Production and Nutrition. pp. 315-315, 12th Asian Fisheries & Aquaculture Forum (AFAF), Iloilo, Philippines, 8/04/19.

The effect of dietary protein to energy ratio and stocking densities on fish production, food web enhancement and economic benefit of gift Nile tilapia aquaculture in ponds. / Kabir, K.A.; Verdegem, M.C.J.; Schrama, J.W.; Verreth, J.A.J.; Phillips, Michael J.

Book of abstracts of the 12th Asian Fisheries & Aquaculture Forum (AFAF): Transforming Asian Fisheries and Aquaculture for Sustainable Production and Nutrition. 2019. p. 315-315.

Research output: Chapter in Book/Report/Conference proceedingAbstractAcademic

TY - CHAP

T1 - The effect of dietary protein to energy ratio and stocking densities on fish production, food web enhancement and economic benefit of gift Nile tilapia aquaculture in ponds

AU - Kabir, K.A.

AU - Verdegem, M.C.J.

AU - Schrama, J.W.

AU - Verreth, J.A.J.

AU - Phillips, Michael J.

PY - 2019/4/12

Y1 - 2019/4/12

N2 - In non-lined ponds, natural food complements dietary P/E. We assessed the effect of lowering dietary PIE ratio with an increasing stocking density on performance of tilapia, food web enhancement and impact on pond nutrients. The experiment was conducted in a 2x2x2 factorial design: diet (CP:CE ratio 19 vs. 14 g.MJ-1); feeding level; and stocking density (2 vs 3 m-2) in 40 farmers' ponds. Biomass gain increased with a decreasing dietary PIE ratio and increasing stocking density). A negative accumulation of N and P in pond water was noticed for low stocking density ponds. Nitrogen gain in fish was higher for low P/E diet and also influenced by feed per square meter. At low P/E diet, the contribution of natural food to fish production was higher than for the high P/E diet. Net profit increased by lowering the dietary P/E ratio of the diet (2070 vs 1072 US$ ha-1 83 day-1).

AB - In non-lined ponds, natural food complements dietary P/E. We assessed the effect of lowering dietary PIE ratio with an increasing stocking density on performance of tilapia, food web enhancement and impact on pond nutrients. The experiment was conducted in a 2x2x2 factorial design: diet (CP:CE ratio 19 vs. 14 g.MJ-1); feeding level; and stocking density (2 vs 3 m-2) in 40 farmers' ponds. Biomass gain increased with a decreasing dietary PIE ratio and increasing stocking density). A negative accumulation of N and P in pond water was noticed for low stocking density ponds. Nitrogen gain in fish was higher for low P/E diet and also influenced by feed per square meter. At low P/E diet, the contribution of natural food to fish production was higher than for the high P/E diet. Net profit increased by lowering the dietary P/E ratio of the diet (2070 vs 1072 US$ ha-1 83 day-1).

M3 - Abstract

SP - 315

EP - 315

BT - Book of abstracts of the 12th Asian Fisheries & Aquaculture Forum (AFAF)

ER -

Kabir KA, Verdegem MCJ, Schrama JW, Verreth JAJ, Phillips MJ. The effect of dietary protein to energy ratio and stocking densities on fish production, food web enhancement and economic benefit of gift Nile tilapia aquaculture in ponds. In Book of abstracts of the 12th Asian Fisheries & Aquaculture Forum (AFAF): Transforming Asian Fisheries and Aquaculture for Sustainable Production and Nutrition. 2019. p. 315-315