Rearing Rabbits Over Earthen Fish Ponds in Rwanda: Effects on Water and Sediment Quality, Growth, and Production of Nile Tilapia Oreochromis niloticus

Simon Rukera Tabaro, Onisimo Mutanga, Denis Rugege, Jean-Claude Micha

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

Nine earthen ponds of 400 m2 each, were stocked with 800 mixed sex Nile tilapia Oreochromis niloticus fingerlings (14 g mean weight stocked at 2 fish/m-2) and fertilized with rabbit droppings from rabbits reared over fish ponds and stocked at three different densities: T1 = one, T2 = two, and T4 = four rabbits per 100 m2 of pond. After 152 days, results from this integrated rabbit/fish system showed: 1) increasing nutrient content of all ponds in the three treatments except for nitrates, which decreased with time and, 2) good water quality in terms of pH, dissolved oxygen, and turbidity. Fish mean weight at harvest and fish yield were higher in ponds fertilized by the highest rabbit stocking rate: 42.32 g and 6.35 ± 1.0 kg/are, respectively (1 are = 100 m2).

langue originaleAnglais
Pages (de - à)170-181
Nombre de pages12
journalJournal of Applied Aquaculture
Volume24
Numéro de publication2
Les DOIs
étatPublié - avr. 2012

Empreinte digitale

Rwanda
fish ponds
Oreochromis niloticus
rearing
pond
rabbits
sediments
fish
sediment
water
Siganus
fingerlings
stocking rate
turbidity
dissolved oxygen
nutrient content
water quality
nitrates
effect
gender

Citer ceci

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title = "Rearing Rabbits Over Earthen Fish Ponds in Rwanda: Effects on Water and Sediment Quality, Growth, and Production of Nile Tilapia Oreochromis niloticus",
abstract = "Nine earthen ponds of 400 m2 each, were stocked with 800 mixed sex Nile tilapia Oreochromis niloticus fingerlings (14 g mean weight stocked at 2 fish/m-2) and fertilized with rabbit droppings from rabbits reared over fish ponds and stocked at three different densities: T1 = one, T2 = two, and T4 = four rabbits per 100 m2 of pond. After 152 days, results from this integrated rabbit/fish system showed: 1) increasing nutrient content of all ponds in the three treatments except for nitrates, which decreased with time and, 2) good water quality in terms of pH, dissolved oxygen, and turbidity. Fish mean weight at harvest and fish yield were higher in ponds fertilized by the highest rabbit stocking rate: 42.32 g and 6.35 ± 1.0 kg/are, respectively (1 are = 100 m2).",
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author = "{Rukera Tabaro}, Simon and Onisimo Mutanga and Denis Rugege and Jean-Claude Micha",
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Rearing Rabbits Over Earthen Fish Ponds in Rwanda: Effects on Water and Sediment Quality, Growth, and Production of Nile Tilapia Oreochromis niloticus. / Rukera Tabaro, Simon; Mutanga, Onisimo; Rugege, Denis; Micha, Jean-Claude.

Dans: Journal of Applied Aquaculture, Vol 24, Numéro 2, 04.2012, p. 170-181.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - Rearing Rabbits Over Earthen Fish Ponds in Rwanda: Effects on Water and Sediment Quality, Growth, and Production of Nile Tilapia Oreochromis niloticus

AU - Rukera Tabaro, Simon

AU - Mutanga, Onisimo

AU - Rugege, Denis

AU - Micha, Jean-Claude

PY - 2012/4

Y1 - 2012/4

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AB - Nine earthen ponds of 400 m2 each, were stocked with 800 mixed sex Nile tilapia Oreochromis niloticus fingerlings (14 g mean weight stocked at 2 fish/m-2) and fertilized with rabbit droppings from rabbits reared over fish ponds and stocked at three different densities: T1 = one, T2 = two, and T4 = four rabbits per 100 m2 of pond. After 152 days, results from this integrated rabbit/fish system showed: 1) increasing nutrient content of all ponds in the three treatments except for nitrates, which decreased with time and, 2) good water quality in terms of pH, dissolved oxygen, and turbidity. Fish mean weight at harvest and fish yield were higher in ponds fertilized by the highest rabbit stocking rate: 42.32 g and 6.35 ± 1.0 kg/are, respectively (1 are = 100 m2).

KW - fish production

KW - pond soil quality

KW - Rabbit survival

KW - water quality

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