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Thyroid hormone surges during milkfish metamorphosis
(Society of Israeli Aquaculture and Marine Biotechnology, 1994)
Both thyroxine (T<sub>4</sub>) and triiodothyronine (T<sub>3</sub>) were detected in fertilized eggs and larvae of milkfish. The concentration of T<sub>4</sub> was lower than that of T<sub>3</sub> only in fertilized eggs ...
Agar production from Gracilariopsis heteroclada (Gracilariales, Rhodophyta) grown at different salinity levels
(Walter de Gruyter, 1994)
Gracilariopsis heteroclada grown in fiber glass tanks at four salinity levels was treated with three different concentrations of aqueous NaOH. Yield, gel strength, gelling and melting temperatures of the extracted agar ...
Aflatoxin B1 contamination of shrimp feeds and its effect on growth and hepatopancreas of pre-adult Penaeus monodon
(Society of Chemical Industry, 1994)
A survey of aflatoxin B<sub>1</sub> (AFLB<sub>1</sub>) levels in commonly used commercial shrimp finisher feeds in the Philippines showed a various range of values from not detected to 120 μg kg<sup>−1</sup> using ...
Growth and food consumption of milkfish (Chanos chanos) during dry and wet seasons
(Serials Publications, 1994)
This study was conducted to evaluate the quality of the food consumed by the fish, to estimate the food consumption of the fish in the natural environment during the wet and dry seasons, and to determine the relationship ...
Effect of detention time on aerobic waste stabilization pond performance in Southeast Asia
(Springer Verlag, 1994)
The rising level of pollution in rivers, lakes and other bodies of water has created problems of significant magnitude in Southeast Asia. Apart from the aesthetic desirability of clean rivers are the pressing dangers to ...
L-ascorbyl-2-phosphate Mg as source of vitamin C for juvenile Penaeus monodon
(Society of Israeli Aquaculture and Marine Biotechnology, 1994)
Phosphated ascorbic acid (MAP), a stable vitamin C derivative, was used in practical diets for Penaeus monodon (wet weight, 126-254 mg) as a source of vitamin C. In Experiment I, the levels were from 0 to 1,500 ppm MAP. ...
Ammonia excretion rates of the sea bass, Lates calcarifer, in fresh and sea water
(Society of Israeli Aquaculture and Marine Biotechnology, 1994)
The weight-specific ammonia excretion rate of sea bass (Lates calcarifer) fry in fresh water is higher than that of those in sea water. The allometric equation \(y = 24.426 \times ^{-0.4714}\) best describes the relationship ...
Gill lesions in Nile tilapia Oreochromis fingerling associated with acute malathion poisoning.
(Science and Technology Information Institute, 1994)
The hispathological changes in gills of Nile tilapia, Oreochromis niloticus, fingerlings exposed to 5.3 mg/l (96-h LC50) malathion are described. These changes include hypertrophy of epithelial cells after 3 h, epithelial ...