Desempenho reprodutivo de fêmeas de jundiá alimentadas com diferentes fontes protéicas

Parra, Jorge Erick Garcia; Neto, João Radünz; Veiverberg, Cátia Aline; Lazzari, Rafael; Bergamin, Giovani Taffarel; Ferreira, Cristiano Costenaro; Ferreira, Francesca Werner

doi:10.4321/s0004-05922010000200011

Cited by 6 publications

(9 citation statements)

References 20 publications

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“…Diet influences the size and composition of the oocytes of the females of several species (Tyler & Sumpter ; Wiegand ). Several authors have determined the effect of diet on the fertilization rate of black sea bass ( Centropristis striata ; Bentley, Watanabe, Rezek & Seaton ), the vigour and survival of Nile tilapia ( Oreochomis niloticus ) offspring (Bombardelli, Hayashi, Natali, Sanches & Piana ) and the growth of silver catfish ( Rhamdia quelen ) larvae (Parra, Radünz Neto, Veiverberg, Lazzari, Bergamin, Pedron, Rossato & Sutili ; Parra, Radünz Neto, Veiverberg, Lazzari, Bergamin, Corrêia, Ferreira & Ferreira ).…”

Section: Introductionmentioning

confidence: 99%

Animal performance and reproductive aspects of femaleRhamdia quelenfed on different levels of digestible energy

et al. 2012

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This study was conducted to evaluate the effects of different diet energy levels on animal performance. Specifically, this investigation examined the reproductive and histological aspects of the liver and gonads of female silver catfish (Rhamdia quelen). These fish were fed for 210 days with diets containing 30% digestible protein (DP) and digestible energy (DE) that corresponded to 11.93, 12.98, 14.03, 15.07 and 16.12 MJ of DE kg−1. The initial and final lengths, weights, and weight gains, the visceral, gonadal, and hepatosomatic indices, and the histological parameters hepatocytes area and gonadal stages were evaluated. In the reproductive season, the fish were submitted to an artificial reproduction protocol and the percentage of spawning females and their relative and absolute fecundity were evaluated. DE did not affect reproductive or animal performance aspects (P > 0.05). Cytoplasmic vacuoles in hepatocytes were observed in higher DE levels. Thus, female Rhamdia quelen can be fed a diet of 30% DP with 11.93 MJ of DE kg−1 without reproductive or performance losses.

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Section: Introductionmentioning

confidence: 99%

Animal performance and reproductive aspects of femaleRhamdia quelenfed on different levels of digestible energy

et al. 2012

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“…This could be due to the higher crude protein levels, greater quantity of starch, and greater fraction of amylose in sorghum, in comparison to corn, which results in greater nutrient availability (Rostagno, 2011), and could have led to a greater vitellogenin production (Parra et al, 2010). Furthermore, according to Adamiak et al (2006), the increase of starch concentration in the diet is directly related to oocyte quality.…”

Section: Resultsmentioning

confidence: 99%

Reproductive performance of silver catfish fed sorghum diets supplemented with phytase

Rodrigues

Sanchez

Damasceno

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to evaluate the reproductive performance of silver catfish (Rhamdia quelen) fed diets containing sorghum, as a replacement for corn, supplemented or not with phytase. The experiment was carried out with 360 fish, with 16.02±0.58 g mean initial weight, fed diets in which low-tannin sorghum replaced corn at 0, 50, and 100%, with or without phytase supplementation (1,500 FTU per kilogram of feed). Diets supplemented with phytase or with 100% sorghum led to a reduction of visceral fat deposition and hepatic mass in males. In females, similar results were observed for diets containing phytase. Females fed sorghum-only diets, supplemented or not with phytase, had bigger oocytes. Males and females at the developing and final stages of gonadal maturation were found in all treatments. The replacement of corn by sorghum affects neither semen quality nor the fertilization rate of gametes. Therefore, complete replacement of corn with low-tannin sorghum in the diet can be performed without compromising the reproductive performance or the somatic indexes of silver catfish.Index terms: Rhamdia quelen, alternative food, breeding nutrition, histology, quality of gametes. Desempenho reprodutivo de jundiá alimentado com dietas com sorgo suplementadas com fitaseResumo -O objetivo deste trabalho foi avaliar o desempenho reprodutivo de jundiá (Rhamdia quelen) alimentado com dietas contendo sorgo em substituição ao milho, suplementadas ou não com fitase. O experimento foi realizado com 360 jundiás, com peso médio inicial de 16,02±0,58 g, alimentados com dietas compostas por 0, 50 e 100% de sorgo de baixo tanino, em substituição ao milho, com ou sem a suplementação de fitase (1.500 UFA por quilograma da dieta). Dietas com suplementação de fitase ou com 100% de sorgo reduziram a deposição de gordura visceral e a massa hepática nos machos. Nas fêmeas, o mesmo efeito foi observado quanto às dietas com suplementação de fitase. As fêmeas alimentadas com dietas apenas com sorgo, suplementadas ou não com fitase, apresentaram ovócitos maiores. Foram encontrados machos e fêmeas nas fases finais de desenvolvimento e maturação gonadal, em todos os tratamentos. A substituição do milho pelo sorgo não afeta a qualidade seminal nem a taxa de fertilização dos gametas. Portanto, a substituição completa do milho pelo sorgo de baixo tanino pode ser efetuada sem afetar os parâmetros reprodutivos e os índices somáticos do jundiá.Termos para indexação: Rhamdia quelen, alimento alternativo, nutrição de reprodutores, histologia, qualidade de gametas.

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“…Nevertheless, we have observed significant progress in the development of priority investigations in order to understand the relationship between nutrition and reproduction mainly because it is a species of native fish (Coldebella et al, 2011;Tessaro et al, 2012). Parra et al (2010) observed changes in the morphometry of the eggs and larvae survival as a result…”

Section: Introductionmentioning

confidence: 99%

The effects of L lysine in the diet of silver catfish (Rhamdia voulezi) female broodstocks

Bittencourt¹,

Damasceno²,

Diemer³

et al. 2018

lajar

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ABSTRACT. The objective of this study was to assess the L-lysine effect in silver catfish, Rhamdia voulezi female reproduction. Four hundred fish were used distributed in a random in 16 net cages (25 fish each × 4 replicates = 100 fish per treatment). The treatments consisted in four diets, isoproteic and isoenergetic (30% crude protein and 3,500 kcal kg -1 digestible energy) with different L-lysine levels: T1: 1.30; T2: 1.40; T3: 1.60 and T4: 1.95%. After 185 days of experiment 18 females per treatment were weighed, measured, and submitted to hormonal induction (0.5 and 5.0 mg kg -1 Carp Pituitary Extract). The females were then sacrificed and had their ovaries, liver and fat removed and the respective organosomatic indices were estimated. With regard to the reproductive parameters, the released oocytes, absolute fecundity and remaining ovaries were influenced (P < 0.05) by the diet, and the highest mean values were observed in the treatment with 1.95% L-lysine. Among the organosomatic indices, only the visceral fat was influenced (P < 0.05). The estradiol levels and the composition of essential amino acid in oocytes were not affected (P > 0.05). We can conclude that L-lysine affects the reproductive parameters and accumulation of visceral fat in R. voulezi.

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Desempenho reprodutivo de fêmeas de jundiá alimentadas com diferentes fontes protéicas

Cited by 6 publications

References 20 publications

Animal performance and reproductive aspects of femaleRhamdia quelenfed on different levels of digestible energy

Animal performance and reproductive aspects of femaleRhamdia quelenfed on different levels of digestible energy

Reproductive performance of silver catfish fed sorghum diets supplemented with phytase

The effects of L lysine in the diet of silver catfish (Rhamdia voulezi) female broodstocks

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