2000
DOI: 10.1590/s1516-35982000000300003
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Abstract: RESUMO -Os objetivos deste estudo foram comparar a eficiência de duas rações 1 (NUTRAVIT) e 2 (IP), ambas com 40% de proteína bruta, contendo o andrógeno sintético 17 α-metiltestosterona (MT), e analisar a dosagem mais efetiva desse hormônio na reversão sexual da Tilápia do Nilo, Oreochromis niloticus, por intermédio da análise histológica das gonadas e da sexagem dos exemplares. Foram utilizadas 9600 larvas de tilápia do Nilo, com 7 dias de vida, recebendo os seguintes tratamentos, por um período de 45 dias: … Show more

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Cited by 24 publications
(18 citation statements)
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References 11 publications
(12 reference statements)
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“…Shepperd [34] and Celik et al [11] found similar results on Red tilapia in steel tank and aquaria on O. niloticus respectively. Romerio et al [25] too found similar results despite feeding O. niloticus with MT incorporated feed for 45 days.…”
Section: Discussionmentioning
confidence: 69%
See 1 more Smart Citation
“…Shepperd [34] and Celik et al [11] found similar results on Red tilapia in steel tank and aquaria on O. niloticus respectively. Romerio et al [25] too found similar results despite feeding O. niloticus with MT incorporated feed for 45 days.…”
Section: Discussionmentioning
confidence: 69%
“…In the sex reversal of Tilapia fish species, several dosages of MT have been used and recommended (50 mgMT/kg [22]; 40 mgMT/kg [23]; 60 mgMT/kg [24,25]; 75 mgMT/kg [17]. Higher doses have been reported to be deleterious and catabolic and therefore reduce growth instead of being anabolic in nature.…”
Section: Discussionmentioning
confidence: 99%
“…Among androgens, 17α-methyl testosterone (synthetic) has been widely employed to reverse females into males, being commonly used in tilapia. Both steroids have the advantage of being easily metabolized after the period of hormonal treatment (Mainardes-Pinto, Fenerich-Verani, de Campos, & da Silva, 2000;Zanoni, Leal, Filho, de Oliveira, & Ribeiro, 2013). Table 1 shows hormones used for sex reversal and differentiation in different species of fish for both male and female induction.…”
Section: Sex Reversalmentioning
confidence: 99%
“…The higher percentage of male population with higher amount of MT consumed was reported by Mainardes-Pinto et al (2000), Okoko (1996), Macinthos et al (1983), Marjani et al (2009) and Mengumphan et al (2006). MainardesPinto et al (2000) reported significantly higher male population with 30 mg MT than control diet while increasing the MT concentration to 60 mg further increase the male population to 98%.…”
Section: Discussionmentioning
confidence: 76%