Effect of Passiflora incarnata (L) extract on gonadal maturation in young tilapia (Oreochromis sp.)

ABSTRACT The effect of Passiflora incarnata's extract (PE) on gonadal maturation in young tilapia (Oreochromis sp.) was evaluated by administering feed supplemented with PE during the first 90 days immediately after yolk sac assimilation. One hundred and fifty fishes with 0.01 ± 0.003 g average...

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Autores principales:	Ramírez,Eduardo, López-Cardiel,Josué, Lezama,Carlos, García-Márquez,Luis, Borja-Gómez,Imelda, Tintos-Gómez,Adrián
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2017
Materias:	Passiflora Oreochromis tilapia gonadal maturation gonadosomatic index
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2017000500908
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spelling	oai:scielo:S0718-560X20170005009082017-12-07Effect of Passiflora incarnata (L) extract on gonadal maturation in young tilapia (Oreochromis sp.)Ramírez,EduardoLópez-Cardiel,JosuéLezama,CarlosGarcía-Márquez,LuisBorja-Gómez,ImeldaTintos-Gómez,Adrián Passiflora Oreochromis tilapia gonadal maturation gonadosomatic index ABSTRACT The effect of Passiflora incarnata's extract (PE) on gonadal maturation in young tilapia (Oreochromis sp.) was evaluated by administering feed supplemented with PE during the first 90 days immediately after yolk sac assimilation. One hundred and fifty fishes with 0.01 ± 0.003 g average body weight were randomly distributed in ten tanks with the following duplicated treatments: commercial feed (NAT), NAT with 60 mg kg-1 of 17-MT (MET), and NAT supplemented with 31.10 mg, 62.30 mg and 124.60 mg of PE g-1 (P1, P2, P3 respectively). There were no significant differences (P > 0.05) in the average body weight or in the male-female sex ratio between the experimental treatments (P1, P2, P3) and the control (NAT). Statistical differences in the gonadosomatic index (GSI) and the percentage distribution of gonadal maturation stages (PDGMS) were observed in females of P2 and P3. With respect to the females of NAT, the treatments P2 and P3 presented a lower GSI and a lower percentage of females in stage III (GSI: 1.11 ± 0.88, 1.04 ± 0.99 and 1.71 ± 0.72; PDGMS: 45, 30 and 80%, respectively). No significant differences in GSI or PDGMS were observed in the males. The results suggest that the observed differences in GSI and PDGMS in females are unrelated to antinutritional effects. Instead, these differences could be due to a possible antiestrogenic effect attributed to the possible anti-aromatase action of some of its compounds. Future research focusing on the use of PE for reproductive control in tilapia is suggested.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.45 n.5 20172017-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2017000500908en10.3856/vol45-issue5-fulltext-5
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Passiflora Oreochromis tilapia gonadal maturation gonadosomatic index
spellingShingle	Passiflora Oreochromis tilapia gonadal maturation gonadosomatic index Ramírez,Eduardo López-Cardiel,Josué Lezama,Carlos García-Márquez,Luis Borja-Gómez,Imelda Tintos-Gómez,Adrián Effect of Passiflora incarnata (L) extract on gonadal maturation in young tilapia (Oreochromis sp.)
description	ABSTRACT The effect of Passiflora incarnata's extract (PE) on gonadal maturation in young tilapia (Oreochromis sp.) was evaluated by administering feed supplemented with PE during the first 90 days immediately after yolk sac assimilation. One hundred and fifty fishes with 0.01 ± 0.003 g average body weight were randomly distributed in ten tanks with the following duplicated treatments: commercial feed (NAT), NAT with 60 mg kg-1 of 17-MT (MET), and NAT supplemented with 31.10 mg, 62.30 mg and 124.60 mg of PE g-1 (P1, P2, P3 respectively). There were no significant differences (P > 0.05) in the average body weight or in the male-female sex ratio between the experimental treatments (P1, P2, P3) and the control (NAT). Statistical differences in the gonadosomatic index (GSI) and the percentage distribution of gonadal maturation stages (PDGMS) were observed in females of P2 and P3. With respect to the females of NAT, the treatments P2 and P3 presented a lower GSI and a lower percentage of females in stage III (GSI: 1.11 ± 0.88, 1.04 ± 0.99 and 1.71 ± 0.72; PDGMS: 45, 30 and 80%, respectively). No significant differences in GSI or PDGMS were observed in the males. The results suggest that the observed differences in GSI and PDGMS in females are unrelated to antinutritional effects. Instead, these differences could be due to a possible antiestrogenic effect attributed to the possible anti-aromatase action of some of its compounds. Future research focusing on the use of PE for reproductive control in tilapia is suggested.
author	Ramírez,Eduardo López-Cardiel,Josué Lezama,Carlos García-Márquez,Luis Borja-Gómez,Imelda Tintos-Gómez,Adrián
author_facet	Ramírez,Eduardo López-Cardiel,Josué Lezama,Carlos García-Márquez,Luis Borja-Gómez,Imelda Tintos-Gómez,Adrián
author_sort	Ramírez,Eduardo
title	Effect of Passiflora incarnata (L) extract on gonadal maturation in young tilapia (Oreochromis sp.)
title_short	Effect of Passiflora incarnata (L) extract on gonadal maturation in young tilapia (Oreochromis sp.)
title_full	Effect of Passiflora incarnata (L) extract on gonadal maturation in young tilapia (Oreochromis sp.)
title_fullStr	Effect of Passiflora incarnata (L) extract on gonadal maturation in young tilapia (Oreochromis sp.)
title_full_unstemmed	Effect of Passiflora incarnata (L) extract on gonadal maturation in young tilapia (Oreochromis sp.)
title_sort	effect of passiflora incarnata (l) extract on gonadal maturation in young tilapia (oreochromis sp.)
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2017000500908
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Effect of Passiflora incarnata (L) extract on gonadal maturation in young tilapia (Oreochromis sp.)

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