Ovopel and carp pituitary extract for the reproductive induction of Colossoma macropomum males

Martins, Edenilce de Fátima Ferreira; Streit, Danilo Pedro; Abreu, Janessa Sampaio de; Filho, Ruy Alberto Caetano Corrêa; Oliveira, Carlos Antônio Lopes de; Lopera-Barrero, Nelson Maurício; Povh, Jayme Aparecido

doi:10.1016/j.theriogenology.2017.04.047

Cited by 15 publications

(16 citation statements)

References 12 publications

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“…Maria et al (2012) reported 85% of normal spermatozoa after treatment with CPE and 75% normal in the non-hormone-treatment group for Colossoma macropomum. Martins et al (2017) in a study on the effects of CPE, Ovopel (GnRHa and metoclopramide) and control group, showed no difference between groups for C. macropomum. Garcia et al (2015) reported no significant changes for Brycon insignis comparing groups before and after treatment with CPE or GnRH analogues.…”

Section: Discussionmentioning

confidence: 93%

Sperm abnormalities in matrinxã Brycon amazonicus after hormonal treatment with carp pituitary extract and Ovaprim™

Oliveira

Correa

2018

Zygote

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SummaryThe aim of this study was to evaluate if hormonal treatment causes changes in the morphology of matrinxã Brycon amazonicus spermatozoa. Twelve males were randomized into three treatment groups: 1, Ovaprim™ (0.5 ml/kg); 2, carp pituitary extract (CPE; 2.0 mg/kg); and 3, NaCl solution 0.9% - control group (0.5 ml/kg); with four replicates. Morphological sperm analysis was performed using an optical and scanning electron microscope. The percentage of normal spermatozoa (49.6±4.6% to 60.8±2.8%), with primary (26.1±6.4% to 45.3±4.5%) and secondary abnormalities (4.4±2.9% to 13.9±3.5%) did not differ significantly between treatment groups. There were no significant differences between treatments in relation to the primary abnormalities found in the head (10.5±3.8% to 25.5±6.3%), the midpiece (0.1±0.1% to 0.2±0.2%) and in the flagellum (18.9±3.8% to 15.5±3.1%), as well as in the secondary abnormalities, located in the head (0.8±0.4% to 7.8±4.6%) and in the flagellum (2.2±1.1% to 6.1±1.5%). When each abnormality was evaluated individually, only the percentage of degenerated head was higher in the CPE-induced group (24.9±5.9%) than the control group (7.2±3.1%). We concluded that the use of pituitary extract of carp or Ovaprim™ under the conditions of this experiment does not influence the percentage of sperm abnormalities in B. amazonicus.

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Section: Discussionmentioning

confidence: 93%

Sperm abnormalities in matrinxã Brycon amazonicus after hormonal treatment with carp pituitary extract and Ovaprim™

Oliveira

Correa

2018

Zygote

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“…This reinforces the need to improve reproductive protocols using new hormonal inducers (currently, only carp pituitary extract is being used in C. macropomum females) and different hormone doses and/or intervals between doses. It should be emphasized that different hormonal inducers have been successfully evaluated in C. macropomum males (Martins et al, 2017) and females (Souza et al, 2018), but there are no reports on effects on the survival of fish in comparison with the traditional protocol involving carp pituitary extract.…”

Section: Discussionmentioning

confidence: 99%

“…Studies on reproduction in C. macropomum have focused on cryopreservation of gametes (Varela et al, 2012), cooling of embryos (Pessoa et al, 2013), evaluation of different hormonal inducing regimens (Martins et al, 2017), adequate inseminating doses (Leite et al, 2013), assessment of gamete quality (Maria et al, 2010), and successive semen collections (Pires et al, 2017). There, however, is no scientific information on successive oocyte collections in C. macropomum in the same reproductive period.…”

Section: Introductionmentioning

confidence: 99%

Colossoma macropomum females can reproduce more than once in the same reproductive period

Pires

Filho

Sanches

et al. 2018

Animal Reproduction Science

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The aim of the present study was to evaluate induced reproduction in Colossoma macropomum females at the beginning of the reproductive period and 75 days after the first spawning in which reproduction was induced. The experiment was conducted in Nova Mutum, MT, Brazil. Eight 4-year-old C. macropomum females with an average body weight of 6.7 ± 2.4 kg were used. Hormonal induction was performed at the beginning of the reproductive period and repeated 75 days after the first spawning. The following variables were then evaluated: weight of released oocytes, production index, absolute fecundity, oocyte diameter, fertilization rate, and hatching rate. Of the eight females that spawned during the first hormonal induction, three (37.5%) spawned again 75 days after the first spawning. Two females died after the first induced spawning. None of the means of the evaluated variables differed between the two induced spawnings, except for fertilization rate, which was greater (P < 0.05) with the first spawning (88.8 ± 6.1%) than in the second (74.1 ± 10.4%). The results of the present study indicate that C. macropomum females can reproduce again 75 days after a first induced spawning.

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“…These studies sought new knowledge regarding aquaculture crop management and performance, especially for fish in the North region (Table 3). The Tambaqui ( Colossoma macropomum ), the most important fish in Brazil (Rodrigues, 2014), has been the focus of research with varied objectives, such as evaluating its productive performance and food intake in the initial phase of cultivation (Sandre et al, 2017), verifying the physiological and pathological changes of the species in response to parasitism (Jerônimo et al, 2017), supporting the effects on reproductive induction (Martins et al, 2017), determining factors for genetic improvement and gene expression (Gomes et al, 2017; Perazza et al, 2017) and evaluating side effects to antiparasitic, such as mebendazole (Chagas et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Bioprospection of biocompounds and dietary supplements of microalgae with immunostimulating activity: a comprehensive review

Júnior

Faustino

Cunha

2019

PeerJ

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The objective of this review is to analyze the role of microalgal bioprospecting and the application of microalgae as food supplements and immunostimulants in global and regional aquaculture, highlighting the Brazilian Amazon. This study evaluates the primary advantages of the application of the bioactive compounds of these microorganisms, simultaneously identifying the knowledge gaps that hinder their biotechnological and economic exploitation. The methodology used is comparative and descriptive-analytical, considering the hypothesis of the importance of bioprospecting microalgae, the mechanisms of crop development and its biotechnological and sustainable application. In this context, this review describes the primary applications of microalgae in aquaculture during the last decade (2005–2017). The positive effects of food replacement and/or complementation of microalgae on the diets of organisms, such as their influence on the reproduction rates, growth, and development of fish, mollusks and crustaceans are described and analyzed. In addition, the importance of physiological parameters and their association with the associated gene expression of immune responses in organisms supplemented with microalgae was demonstrated. Complementarily, the existence of technical-scientific gaps in a regional panorama was identified, despite the potential of microalgal cultivation in the Brazilian Amazon. In general, factors preventing the most immediate biotechnological applications in the use of microalgae in the region include the absence of applied research in the area. We conclude that the potential of these microorganisms has been relatively well exploited at the international level but not at the Amazon level. In the latter case, the biotechnological potential still depends on a series of crucial steps that involve the identification of species, the understanding of their functional characteristics and their applicability in the biotechnological area, especially in aquaculture.

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Ovopel and carp pituitary extract for the reproductive induction of Colossoma macropomum males

Cited by 15 publications

References 12 publications

Sperm abnormalities in matrinxã Brycon amazonicus after hormonal treatment with carp pituitary extract and Ovaprim™

Sperm abnormalities in matrinxã Brycon amazonicus after hormonal treatment with carp pituitary extract and Ovaprim™

Colossoma macropomum females can reproduce more than once in the same reproductive period

Bioprospection of biocompounds and dietary supplements of microalgae with immunostimulating activity: a comprehensive review

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