Lysine in the diet of Rhamdia voulezi male broodstocks confined in net cages

Diemer, Odair; Bittencourt, Fábio; Barcellos, Leonardo Gil; Boscolo, Wilson Rogério; Feiden, Aldi; Romagosa, Elizabeth

doi:10.1016/j.aquaculture.2014.07.029

Cited by 17 publications

(19 citation statements)

References 35 publications

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“…This experimental design and diets followed Diemer et al (2014). The study was conducted at the Center for the Development of Technologies for Net Cages of the Iguaçu River -Governor José Richa Reservoir, located in Boa Vista da Aparecida -Paraná/Brazil, in partnership with Study Group on the Management of Aquaculture (GEMAq) of the State University of West Paraná (Universidade Estadual do Oeste do Paraná-Unioeste), campus Toledo, Paraná, Brazil.…”

Section: Experimental Designmentioning

confidence: 99%

“…We prepared four isoenergetic and isoproteic diets (3,500 kcal kg -1 of digestible energy; 30% of crude protein) with different total L-lysine levels: 1.30; 1.40; 1.60 and 1.95% of the diet (Table 1), following Diemer et al (2014). The intermediate L-lysine levels were chosen according to the nutritional requirements of the species according to Montes-Girao & Fracalossi (2006).…”

Section: Experimental Dietsmentioning

confidence: 99%

“…During the reproductive period 18 females and 18 males per treatment were selected by external characteristics (females: bulging abdomen which was soft to touch, swollen and reddish genital papilla; males: color and fluidity of the milt extruded after gentle pressure on the abdomen) (Reidel et al, 2010;Diemer et al, 2014). The seminal parameters were described by Diemer et al (2014).…”

Section: Reproduction Studymentioning

confidence: 99%

“…The seminal parameters were described by Diemer et al (2014). The selected fish were transferred to the laboratory (only to spawning) located on the riverbank, individually weighed and placed in 250 L tanks.…”

Section: Reproduction Studymentioning

confidence: 99%

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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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Section: Experimental Designmentioning

confidence: 99%

Section: Experimental Dietsmentioning

confidence: 99%

Section: Reproduction Studymentioning

confidence: 99%

Section: Reproduction Studymentioning

confidence: 99%

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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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“…Therefore, the nutritional balance of the diets fed to broodstock can improve oocytes and spermatozoa quality, and increase the gamete production, gonadal development (Reidel et al, 2010;Diemer et al, 2014), and the quality of spawning (Mardini et al, 1981;Izquierdo et al, 2001;Coldebella et al, 2011;Bittencourt et al, 2012).…”

Section: Introductionmentioning

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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Assessing physiological responses and oxidative stress effects in Rhamdia voulezi exposed to high temperatures

da Silva,

Ratko,

Côrrea

et al. 2024

Fish Physiol Biochem

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Lysine in the diet of Rhamdia voulezi male broodstocks confined in net cages

Cited by 17 publications

References 35 publications

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

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

Reproductive performance of silver catfish fed sorghum diets supplemented with phytase

Assessing physiological responses and oxidative stress effects in Rhamdia voulezi exposed to high temperatures

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