Digestible energy requirement for females of Rhamdia quelen on reproductive activity fed with ration based on vegetal ingredients

The present experiment was carried out to evaluate the growth and reproductive parameters of Rhamdia quelen females fed with pelleted ration containing different levels of digestible energy, and to evaluate the vigor of their offspring. The breeders were placed in tanks under conditions of photoperi...

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Autores principales:	Bombardelli,Robie A, Sanches,Eduardo A, Tessaro,Lucélia, Buzzi,Alexandre H, Martins,Cleide V.B, Meurer,Fábio
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2015
Materias:	Rhamdia quelen eggs fertilization larvae nutrition reproduction aquaculture
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000300018
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spelling	oai:scielo:S0718-560X20150003000182015-09-29Digestible energy requirement for females of Rhamdia quelen on reproductive activity fed with ration based on vegetal ingredientsBombardelli,Robie ASanches,Eduardo ATessaro,LucéliaBuzzi,Alexandre HMartins,Cleide V.BMeurer,Fábio Rhamdia quelen eggs fertilization larvae nutrition reproduction aquaculture The present experiment was carried out to evaluate the growth and reproductive parameters of Rhamdia quelen females fed with pelleted ration containing different levels of digestible energy, and to evaluate the vigor of their offspring. The breeders were placed in tanks under conditions of photoperiod and natural temperature. The fishes were fed for 255 days with isoproteic rations pelleted containing 35% of crude protein (CP) and five levels of the digestible energy (DE) (2700, 2950, 3200, 3450, 3700 kcal kg-1). The fishes were distributed in a randomized experimental design compounded by five treatments and three repetitions. A 16-m² tank containing six females and three males was considered as one experimental unit. The weight and weight gain was evaluated. During the reproductive season the females were induced to breeding by hormonal manipulation and were evaluated the percentage of spawning females, the total fecundity, relative fecundity (number of oocytes per gram of spawning females), the fertilization ratio, the time to hatching and the vigor of larvae. The growth and reproductive parameters were not influenced (P > 0.05) by the increasing levels of digestible energy of the rations. The feeding of R. quelen females in breeding fit can be carried out with 2700 kcal kg-1 pelletized ration based on vegetal ingredients, without damage to reproductive performance.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.43 n.3 20152015-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000300018en10.3856/vol43-issue3-fulltext-18
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Rhamdia quelen eggs fertilization larvae nutrition reproduction aquaculture
spellingShingle	Rhamdia quelen eggs fertilization larvae nutrition reproduction aquaculture Bombardelli,Robie A Sanches,Eduardo A Tessaro,Lucélia Buzzi,Alexandre H Martins,Cleide V.B Meurer,Fábio Digestible energy requirement for females of Rhamdia quelen on reproductive activity fed with ration based on vegetal ingredients
description	The present experiment was carried out to evaluate the growth and reproductive parameters of Rhamdia quelen females fed with pelleted ration containing different levels of digestible energy, and to evaluate the vigor of their offspring. The breeders were placed in tanks under conditions of photoperiod and natural temperature. The fishes were fed for 255 days with isoproteic rations pelleted containing 35% of crude protein (CP) and five levels of the digestible energy (DE) (2700, 2950, 3200, 3450, 3700 kcal kg-1). The fishes were distributed in a randomized experimental design compounded by five treatments and three repetitions. A 16-m² tank containing six females and three males was considered as one experimental unit. The weight and weight gain was evaluated. During the reproductive season the females were induced to breeding by hormonal manipulation and were evaluated the percentage of spawning females, the total fecundity, relative fecundity (number of oocytes per gram of spawning females), the fertilization ratio, the time to hatching and the vigor of larvae. The growth and reproductive parameters were not influenced (P > 0.05) by the increasing levels of digestible energy of the rations. The feeding of R. quelen females in breeding fit can be carried out with 2700 kcal kg-1 pelletized ration based on vegetal ingredients, without damage to reproductive performance.
author	Bombardelli,Robie A Sanches,Eduardo A Tessaro,Lucélia Buzzi,Alexandre H Martins,Cleide V.B Meurer,Fábio
author_facet	Bombardelli,Robie A Sanches,Eduardo A Tessaro,Lucélia Buzzi,Alexandre H Martins,Cleide V.B Meurer,Fábio
author_sort	Bombardelli,Robie A
title	Digestible energy requirement for females of Rhamdia quelen on reproductive activity fed with ration based on vegetal ingredients
title_short	Digestible energy requirement for females of Rhamdia quelen on reproductive activity fed with ration based on vegetal ingredients
title_full	Digestible energy requirement for females of Rhamdia quelen on reproductive activity fed with ration based on vegetal ingredients
title_fullStr	Digestible energy requirement for females of Rhamdia quelen on reproductive activity fed with ration based on vegetal ingredients
title_full_unstemmed	Digestible energy requirement for females of Rhamdia quelen on reproductive activity fed with ration based on vegetal ingredients
title_sort	digestible energy requirement for females of rhamdia quelen on reproductive activity fed with ration based on vegetal ingredients
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000300018
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Digestible energy requirement for females of Rhamdia quelen on reproductive activity fed with ration based on vegetal ingredients

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