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Annual changes in serum calcium and inorganic phosphate levels and correlation with gonadal status of a freshwater murrel, Channa punctatus (Bloch).
Srivastav, S K; Srivastav, A K.
Afiliação
  • Srivastav SK; Department of Zoology, University of Gorakhpur, India.
Braz J Med Biol Res ; 31(8): 1069-73, 1998 Aug.
Article em En | MEDLINE | ID: mdl-9777013
Adult Channa punctatus murrels of both sexes (60-80 g) were collected locally from Ramgarh Lake during the second week of every month (10 individuals of each sex/month) throughout the year. Blood samples were collected and analyzed for serum calcium and phosphate levels by the methods of Trinder (1960) and Fiske and Subbarow (1925), respectively. Gonads were fixed to judge the state of maturation of the fish. Males exhibited no change in serum calcium levels throughout the year in correlation with testicular maturation. However, serum phosphate levels exhibited a rise in correlation with the increased gonadosomatic index. Females showed marked seasonal changes in serum calcium and phosphate levels which were associated with ovarian maturation (vitellogenesis).
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fosfatos / Maturidade Sexual / Cálcio / Peixes / Gônadas Limite: Animals Idioma: En Ano de publicação: 1998 Tipo de documento: Article
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fosfatos / Maturidade Sexual / Cálcio / Peixes / Gônadas Limite: Animals Idioma: En Ano de publicação: 1998 Tipo de documento: Article