Protein requirement in masculinized and non-masculinized juveniles of Bay Snook Petenia splendida [PDF]
The effect of the dietary protein level on growth and total body chemical composition of the native cichlid Bay snook (Petenia splendida), masculinized and non-masculinized, was studied. Five semi-purified diets with protein levels 35, 40, 45, 50 and 55%
Civera-Cerecedo, Roberto +8 more
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[The mitotic and meiotic chromosomes of the tropical fish Petenia splendida (Cichlidae)].
The karyotype of bay snook, Petenia splendida, is described based on mitotic and meiotic stages of sixty larvae and twelve juveniles from Tabasco, Mexico. Standard cytological procedures with minor modifications were followed to obtain mitotic and meiotic chromosome spreads.
Lenin, Arias-Rodriguez +1 more
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Gnathostoma binucleatum (Spirurida: Gnathostomatidae) en peces dulceacuícolas de Tabasco, México
La gnatostomiasis humana se adquiere al ingerir pescado de agua dulce crudo o insuficientemente cocido, infectado con larvas de tercer estadio avanzado (L3A) de nemátodos del género Gnathostoma.
Teiji Kifune +4 more
doaj
Masculinización del cíclido nativo Tenhuayaca, Petenia splendida (Günther, 1862), usando nauplios de Artemia como vehículo del esteroide 17-? metiltestosterona [PDF]
At world-wide level the use of steroids to obtain all-male population in cichlids, has been widely used with the objective to avoid the reproduction process and to canalize the energy of the food in weight gain. In this sense, the application of steroids
Hernández-Vidal, Ulises +3 more
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Inducción al desove en la tenguayaca (Petenia splendida Günther, 1862)
RESUMEN | En los últimos años, el cultivo de la tenguayaca (Petenia splendida) ha comenzado a tomar importancia en la región sur de México, siendo objeto de estudio en instituciones de investigación donde se han abordado aspectos de su biología, cultivo y nutrición.
Ramírez-Ochoa, José Manuel +5 more
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[Systematic of the fish Petenia splendida (Perciformes: Cichlidae) of Lake Petén Itzá, Guatemala].
The Lake Petén Itzá is located in the multiple use zone of the Maya Biosphere Reserve. It belongs to the subtropical moist forest (warm) life zone, and has very important flora and fauna diversities. Among the fish species, the white fish (Petenia splendida) is of high commercial value.
Anaitté, Méndez +2 more
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Helmintos gastrointestinales del pez blanco de Petén (Petenia splendida): especies y prevalencia de parasitosis en la población del lago Petén Itzá, Petén, Guatemala [PDF]
Se tomaron muestras de 110 especímenes de pez blanco, Petenia splendida, provenientes del Lago Petén Itzá. De las 110 muestras estudiadas, ninguna presentó helmintos gastrointestinales. Se procesaron las muestras en el Laboratorio de Parasitología de la
Penados Burgos, María Alejandra
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Fishes collected by Emanuel Ritter von Friedrichsthal in Central America between 1838 -1841 [PDF]
The fish specimens sent to Vienna by the Austrian naturalist Emanuel Ritter von Friedrichsthal (1809 – 1842) constitute one of the oldest collections of freshwater fishes from Central America.
Morgenstern,Rico, Morgenstern, Rico
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Effects of dietary protein, lipid levels and vegetative ingredients replacing fish meal on growth performance of Giant Cichlid (Petenia splendida "RED") [PDF]
紅頭金鯛(Petenia splendida "RED")為一種新開發的魚種,其肉質鮮美,粗放式養殖下成長快速,體型可達40公分以上,成魚體色鮮豔,所以潛在市場很大。本研究探討不同含量的蛋白質與脂質及植物性原料的玉米蛋白(Corn protein)取代魚粉對紅頭金鯛成長之影響。 實驗一:在飼料中添加不同含量的蛋白質 45%, 40%及35%與脂質 8%與 13%探討對紅頭金鯛成長之影響。經8 週飼養後以高魚粉組之粗蛋白45%及高脂質組之粗脂質13%的增重率136%,飼料效率為56%為最好。 實驗二 ...
林淙裕
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Pseudocaecincola batallae (esquema) [PDF]
Holotipo de Pseudocaecincola batallae Lamothe, Salgado y Pineda, 1991, colectado en intestino de Petenia splendida (Pisces)
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