Comparison of rearing performances and intermuscular bone numberin the mirror and nude genotypes of common carp (Cyprinus carpio L.)in a controlled field test in Madagascar

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Comparison of rearing performances and intermuscular bone numberin the mirror and nude genotypes of common carp (Cyprinus carpio L.)in a controlled field test in Madagascar

Diana Edithe Andria-Mananjara [et al.] - Nama Orang;

Nude carps, a genotype of common carp which are devoid of scales, have been banned from farmedpopulations of carp in Europe due to both the lethal effect of the N (nude) gene when in homozygousstate, and to the negative pleiotropic effects on growth and survival (especially in harsh conditions) ofthis same gene in the heterozygous state, which produces the nude phenotype. In Madagascar, whereclimatic variations are less extreme than in Eastern Europe, the nude phenotype is valued both by farmersand consumers, for its good growth and supposed low number of intermuscular bones. We performedan on-farm experiment using a “common garden” design to control environmental variation, in order tocompare the growth and survival, as well as the number of intermuscular bones of nude carp to two othercommon scale cover phenotypes of the same species, the mirror and scaly carps. We found that survivalof nude carps was lower or equal to that of mirror carps at all stages of the farming process, while growthperformance was lower than that of mirror carps in some ponds only. Globally, the biomass productionper fish stocked was always lower in nude carp compared to mirror carp. The number of intermuscularbones was the same in nude, mirror and scaly carps. We conclude that as in Europe, it would be valuableto farm mirror rather than nude carps, as the supposed benefits of the latter are not supported by ourexperiment in typical Malagasy farming conditions.

Keywords:Nude carpGrowthSurvivalPleiotropyIntermuscular bonesa

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Judul Seri: Aquaculture Reports
No. Panggil: -
Penerbit: : Elsevier., 2016
Deskripsi Fisik: Aquaculture Reports 3 (2016) 77–81
Bahasa: English
ISBN/ISSN: -
Klasifikasi: NONE
Tipe Isi: -
Tipe Media: -
Tipe Pembawa: -
Edisi: -
Subjek: KIMIA
Info Detail Spesifik: -
Pernyataan Tanggungjawab: Wati/Agus

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FULL TEXT:Comparison of rearing performances and intermuscular bone numberin the mirror and nude genotypes of common carp (Cyprinus carpio L.)in a controlled field test in Madagascar

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