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Alimentary handling in the larviculture of mandi-pintado (“Pimelodus britskii”) Manejo alimentar na larvicultura do mandi-pintado ("Pimelodus britskii")  [cached]
Odair Diemer,Dacley Hertes Neu,César Sary,Aldi Feiden
Revista Brasileira de Saúde e Produ??o Animal , 2010,
Abstract: This study aimed to evaluate the growth rate and survival of mandi-pintado (Pimelodus britskii) larvae submitted to different feeding management. The experiment was conducted in a completely randomized design with four treatments and five replicates in a tank with 30 liters of water, each containing 30 larvae (0.032 ± 0.0048g and 8.22 ± 0.40mm). The treatments consisted of larvae fed with artemia; diet; artemia + diet; and artemia for two weeks + diet. Fish fed with artemia + diet showed greater weight and length, when compared to other feeding managements. The fish fed only with diet showed the worst performance. For the mandi-pintado larval rearing, the use of artemia combined with diet provides the best results for survival and growth. O presente trabalho foi conduzido com o objetivo de avaliar a taxa de crescimento e sobrevivência de larvas de mandi-pintado (Pimelodus britskii) submetidas a diferentes manejos alimentares. O experimento foi realizado em um delineamento inteiramente casualizado com quatro tratamentos e cinco repeti es, em aquários com 30 litros de água, cada um com 30 larvas (0,032 ± 0,0048g e 8,22 ± 0,40mm). Os tratamentos consistiram em larvas alimentadas com artemia; ra o; artemia + ra o e artemia por duas semanas + ra o. Os peixes alimentados com artemia + ra o apresentaram maior peso e comprimento final, quando comparados aos demais manejos alimentares. Os peixes alimentados apenas por ra o apresentaram o pior desempenho. Para a larvicultura do mandi-pintado, a utiliza o de artemia combinada com ra o proporciona os melhores resultados de sobrevivência e crescimento.
Processamento da dieta para larvas de mandi-pintado (Pimelodus britskii)
Neu,D.H.; Diemer,O.; Sary,C.; Reis,E.S.; Feiden,A.; Boscolo,W.R.;
Archivos de Zootecnia , 2011, DOI: 10.4321/S0004-05922011000300068
Abstract: this study aimed evaluate the influence of food processing in diet on development of larvae of pimelodus britskii. seventy five larvae were assigned in a completely randomized design to 15 aquariums of five liters at a density of one larva per liter. the diets were processed and supplied as mash, paste and extruded ground. the larvae were feeding to apparent satiation for a period of 30 days, four times daily: 8, 11, 14 and 17 h. the parameters of water (dissolved oxygen, ph and conductivity) were measured once a week. there were not differences in performance for final weight, and survival of larvae. for the average final length, the ground extruded diet was better than the mash diet (p<0.05) but not different from the pasty diet. these results indicate that processing of the feed influence the performance of the pimelodus britskii in the initial phase. therefore is recommended the use of ground extrused diets to achieve higher final length of animals.
Varia??o estacional da composi??o centesimal do peixe de água doce, Pimelodus darias Bloch (Mandi)
Andrade, Marília Oetterer De;Lima, Urgel de Almeida;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1975, DOI: 10.1590/S0071-12761975000100050
Abstract: this work was carried out on "mandi" (pimelodus darias bloch) a specie of catfish from piracicaba river in s?o paulo state, brazil, with the purpose of knowing the influence of the fishing season on moisture, protein, lipids and ash contents of fish flesh, to select the best time to make preserves. the edible part of "mandi" was analysed monthly during a year and showed the following data: moisture 65.15 g/100 g, protein 17.92 g/100 g, lipids 15.51 g/100 g and ash 1.34 g/100 g. the lipids data permitted to classify "mandi" as a fatty fish and june and july were the elected months to pick out fishes for processing.
Size-selective predation of the catfish Pimelodus pintado (Siluriformes: Pimelodidae) on the golden mussel Limnoperna fortunei (Bivalvia: Mytilidae)  [cached]
Jo?o P. Vieira,Michelle N. Lopes
Zoologia (Curitiba) , 2013,
Abstract: This paper describes the size-selective predation on Limnoperna fortunei (Dunker, 1857) by Pimelodus pintado (Azpelicueta, Lundberg & Loureiro, 2008) from the time it arrived at the Mirim Lagoon basin (2005). Sampling was carried out using bottom trawl in depths of 3-6 m, from January to November 2005, and from October to November 2008. Pimelodus pintado began to prey upon L. fortunei soon after its arrival (austral spring of 2005). On the spring of 2008, L. fortunei was found to be the most important food item of P. pintado. The variation in length of the mussels (0.7-3.2 cm, with a mode of 1.3 cm) indicates that the species is now fully established in the system. Our data indicates that large individuals of P. pintado incorporate more mussels in their diets than small individuals. However, regardless of their size, P. pintado individuals predate only on small (<1.4 cm) representatives of L. fortunei. This prey size corresponds to a phase when the mussel is more mobile and readily available for fish. Larger, more aggregated prey groups that are attached to hard substrates are avoided by fish predators.
Reproductive activity and recruitment of the yellow-mandi Pimelodus maculatus (Teleostei: Pimelodidae) in the Igarapava Reservoir, Grande River, Southeast Brazil
Maia, Bruno Pereira;Ribeiro, Sandra Maria Franco;Bizzotto, Paula Maciel;Vono, Volney;Godinho, Hugo Pereira;
Neotropical Ichthyology , 2007, DOI: 10.1590/S1679-62252007000200008
Abstract: the catfish yellow-mandi, pimelodus maculatus, is a valuable sporting and commercial fish of inland waters of southeast brazil including igarapava reservoir. it is a short-distance migrant that needs shorter stretches of free-flowing river to spawn compared to other neotropical migrants. igarapava reservoir is one the 13 hydroelectric reservoirs, arranged in a cascade fashion, impounding the 1,300 km-long grande river, se brazil. in this paper, we examined reproductive features and recruitment of the yellow-mandi in igarapava reservoir. we also evaluated the role of the igarapava fish ladder (ifl) built around igarapava dam on the sustainability of its fisheries. female adult yellow-mandis that were gill netted (nets of 8-20 cm stretch-mesh) during the reproductive season of 2002/2003, showed adequate ovarian development, indicated by the gonadosomatic index (12.9 ± 2.1, at mature stage) and absolute fecundity (413,794 ± 206,259; range = 125,601-742,026), which were higher than those found in the literature. postovulatory follicles present in ovarian tissue of 32% of the females examined showed that they possibly could have spawned in the reservoir area. gill nets of 3-5 cm stretch-mesh aimed at capturing juvenile yellow-mandi were unproductive. these results indicated that igarapava reservoir and its reduced catchment area did not provide adequate conditions for recruitment of the yellow-mandi. this fish, the most abundant in the ifl, and those reaching the reservoir tended to remain there since no upstream passage mechanism is present. thus, the ifl apparently was responsible for maintaining the igarapava reservoir stock of yellow-mandi.
Spasskyellina mandi n. sp. (Proteocephalidea: Monticelliidae), parasite of Pimelodus ornatus Kner, 1857 (Pisces: Pimelodidae) of the Paraná River, Paraná, Brazil
Pavanelli, Gilberto C;Takemoto, Ricardo M;
Memórias do Instituto Oswaldo Cruz , 1996, DOI: 10.1590/S0074-02761996000600013
Abstract: spasskyellina mandi n. sp. (proteocephalidea: monticelliidae) is described from the siluriform fish pimelodus ornatus kner, 1857, caught in the paraná river, paraná, brazil. the new species differs from other species of the same genus mainly by a fewer number of testes and by a larger osmoregulatory canal. this is the second species of proteocephalidean cestode collected in p. ornatus.
Contribui??o ao conhecimento do valor nutritivo do peixe de água doce, Pimelodus clarias Bloch (Mandi)
Andrade, Marilia Oetterer de;Lima, Urgel De Almeida;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1975, DOI: 10.1590/S0071-12761975000100049
Abstract: this work was carried out on. "mandi" (pimelodus danas bloch) a specie of catfish from piracicaba river, in s?o paulo state, brazil, with the purpose of knowing its chemical composition and some informations of its nutritional value. the fishes picked out in june and july, showed the following composition of the edible part: moisture 72.02 g/100 g, protein 17.93 g/100 g, lipids 9.00 g/100 g, ash 1.12 g/100 g, calcium 94.13 mg/100 g, total phosphorus 550.15 mg/100 g, inorganic phosphorus 262.93 mg/100 g, iron 7.41 mg/100 g, sodium chloride 0.30 g/100 g, vitamin a 120.10 u.i./g lipids and ph 6.80. it was showed that each 100 g of the fish flesh can supply about 12% of total phosphorus, 69% of iron, 22% of vitamin a and 28% of the caloric daily needs.
Comparación alométrica entre los híbridos yaque pintado (Pseudoplatystoma Fasciatum x Leiarius Marmoratus) y chorrosco (Pseudoplatystoma Fasciatum? x Pimelodus Blochi) (siluriformes: pimelodidae)
Mateo,Francisco J.; López Rojas,Héctor;
Revista de la Facultad de Ciencias Veterinarias , 2005,
Abstract: principal component analysis were performed on samples of two hybrids catfish, yaque pintado (pseudoplatystoma fasciatum? x leiarius marmoratus) and chorrosco (pseudoplatystoma fasciatum x pimelodus blochi) for determining morphological differences and similarities. the truss network proposed by? strauss and bookstein (1982) was used to obtain 20 morphometric distance measurements for determining multivariate allometric coefficients (mac) using? principal component analysis.? jackknife resampling was used to evaluate differences between the allometric coefficients of the hybrids. 9 of? these measurements were statistically different (p < 0.05) and the rest do not showed significant differences? (p >0.05). the methods and analysis used show each of the? hybrids (yaque pintado and? chorrosco) has similar growth trajectories.
Reproductive traits of the yellow-mandi catfish Pimelodus maculatus Lacépède (Osteichthyes, Siluriformes) in captive breeding
Sato, Yoshimi;Fenerich-Verani, Nelsy;Verani, José Roberto;Godinho, Hugo Pereira;Sampaio, Edson Vieira;
Revista Brasileira de Zoologia , 1999, DOI: 10.1590/S0101-81751999000400006
Abstract: pimelodus maculatus lacepede, 1803 is an important fish of the s?o francisco river basin, where it is economically significant in both professional and sports fisheries. the fish, maintained in captivity, was subjected to hypophysation with crude caip pituitary extract. approximately 70% of the females treated spawned viable eggs. the eggs were opaque, demersal, yellow and free. egg stripping was performed at 213 hour-degrees (duration = 8.3 h) after the second dose injection, at water temperature of 25-26oc. hatching occurred at 394 hour-degrees (duration = 16.3 h) after egg fertilization, at water temperature of 24-25oc. egg fertilization rate was 64.8%. the relationship between absolute fecundity (af), initial fertility (if) and final fertility (ff) and body weight are expressed, respectively, by af = - 331 + 181717 wt (r2 = 0.62), if = - 16839+ 158123 wt (r2 = 0.65), and ff = -9874 + 100365 wt (r2 = 0.63).
Metazoan parasites of Mandi-amarelo Pimelodus maculatus and of Jundiá Rhamdia quelen (Osteichthyes: Siluriformes) of Paraíba do Sul River, Volta Redonda, Rio de Janeiro
Venancio, Aline Cristine Pinto;Aguiar, Gesilene Ribeiro de;Lopes, Patrícia da Silva;Alves, Dimitri Ramos;
Revista Brasileira de Parasitologia Veterinária , 2010, DOI: 10.1590/S1984-29612010000300006
Abstract: forty-one specimens of mandi-amarelo pimelodus maculatus lacépède, 1803 (siluriformes: pimelodidae) and 54 specimens of jundiá rhamdia quelen (quoy & gaimard, 1824) (siluriformes: heptapteridae) were collected from the paraíba do sul river, volta redonda, state of rio de janeiro, brazil between november 2007 and october 2008. these fish underwent necropsy so their infracommunities of metazoan parasites could be studied. the same three species of parasites were collected in the two fish species studied. these were one monogenean, one nematode, and one hirudinean. cucullanus pinnai (travassos, artiga, and pereira, 1928) (nematoda: cucullanidae) and aphanoblastella sp. (monogenea: dactylogyridae) were the dominant species with the highest prevalence in p. maculatus and r. quelen. the parasite species of p. maculatus and r. quelen showed an atypical over-dispersed pattern of distribution. no parasite species showed significant correlation between the body total length of the siluriform hosts and their prevalence and abundance. the parasite species richness showed a mean value of 0.87 ± 0.67 (0 -2) and 0.57 ± 0.56 (0 -2) in p. maculatus and r. quelen, respectively, and no correlation with the body total length.
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