Now showing items 1-3 of 3

    • Article

      The effect of dietary protein-energy levels on growth and metabolism of milkfish (Chanos chanos Forsskal) 

      RM Coloso, LV Benitez & LB Tiro - Comparative Biochemistry and Physiology - Part A: Physiology, 1988 - Elsevier
      1. Groups of milkfish juveniles (mean weight, 2.8 g) were fed diets containing white fishmeal and gelatin with varying protein-energy to total metabolizable energy (PE:TME) ratios.
      2. Amino acids were incorporated in the diets to stimulate the pattern of milkfish protein. The control diet contained fishmeal as sole protein source and was not supplemented with amino acids
      3. Among the amino acid supplemented diets, best growth was observed at PE:TME ratio of 44.4%. However, the control diet gave better growth rate than any of the amino acid supplemented diets
      4. Specific activities of pyruvate kinase (PK) and glutamate dehydrogenase (GDH) increased significantly with increase in dietary protein-energy level.
    • Article

      Notes on the external sex characters of Chanos chanos (Forskal) spawners 

      H Chaudhuri, JV Juario, R Samson & LB Tiro - Fisheries Research Journal of the Philippines, 1976 - Fisheries Research Society of the Philippines
      In the present study, no visible differences between the sexes of C. chanos with reference to external features such as colouration, shape of head, snout and operculum, presence of tubercles or nasal pores, length, size and shape as well as any roughness in the various fins, could be found. However, the anal region of the mature milkfish (sabalo) exhibits discernible anatomical differences in the male and female. The male has two main openings visible externally: the anterior anus and the posterior urogenital opening at the tip of the urogenital papilla. The female has three main openings instead of two: the anteriormost anus, followed by the genital pore and the urinary pore located posterior to the genital pore at the tip of the urogenital papilla. Internal examinations were also made on both sexes. In ripe sabalo, it is easier to distinguish the sexes since milk oozes out of the urogenital pore by pressing the abdomen of the ripe male fish. Gravid females are identified by their distended abdomens.
    • Conference paper

      Qualitative analysis of the contents of the anterior portion of the oesophagus from adult milkfish, Chanos chanos, captured in Pandan Bay from 10 May-June 1975 

      AC Villaluz, LB Tiro, LM Ver & WE Vanstone - In Proceedings of the International Milkfish Workshop Conference, May 19-22, 1976, Tigbauan, Iloilo, Philippines, 1976 - Aquaculture Department, Southeast Asian Fisheries Development Center
      Qualitative analysis of food items in the anterior spiral portion of the oesophagus suggests that adult milkfish feed on both benthic and planktonic materials.