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Now showing items 321-330 of 335
Development of an ovarian biopsy technique in the sea bass, Lates calcarifer (Bloch).
(Elsevier, 1989)
A convenient and rapid biopsy method for taking ovarian samples from mature sea bass (Lates calcarifer Bloch) is described. Intra-ovarian oocytes siphoned with polyethylene tubing from any region of the ovary provide a ...
Morphological aspects of the development of swimming and feeding functions in the milkfish Chanos chanos
(The Ichthyological Society of Japan, 1987)
Development of swimming and feeding abilities based on morphological development of larval and early juvenileChanos chanos was investigated. In larvae smaller than about 6.5 mm SL, mechanical supports of fins and branchial ...
Ovarian development and changes in the serum vitellogenin levels in the river sculpin, Cottus hangiongensis, during an annual reproductive cycle
(Faculty of Fisheries, Hokkaido University, 1989)
Annual changes in the ovarian development and serum vitellogenin concentration were investigated in the river sculpin, Cottus hangiongensis, sampled monthly from a river in southern Hokkaido, Japan. Ovarian development ...
Observation on the host-parasite relationship of Epipenaeon ingens Nobili (Epicaridea: Bopyridae) and Penaeus semisulcatus De Haan.
(Science and Technology Information Institute, 1987)
Sample of Penaus semisulcatus or Tiger Shrimp ("hipong bulik") from Manila Bay and Tayabas bay, and from waters off Palawan, Cebu, Samar and Capiz were obtained from Navotas Fishery Port during the period from March, 1978 ...
An evaluation of indigenous protein sources as potential component in the diet formulation for tiger prawn, Penaeus monodon, using essential amino acid index (EAAI)
(Elsevier, 1989)
The essential amino acid index (EAAI) could be used in screening potential protein sources. However, when formulating diets, EAAI should be supported with feeding trials and digestibility tests to determine the extent of ...
Effects of Chlorella-feeding on larval milkfish, Chanos chanos, as evidenced by histological monitoring
(Elsevier, 1987)
Milkfish, Chanos chanos, larvae were found to suffer 100% mortality within 6 days of feeding when reared on Chlorella sp. According to the liver ultrastructure, Chlorella-fed fish underwent starvation. Likewise, no signs ...
Development of the digestive tract of milkfish, Chanos chanos (Forsskal): Histology and histochemistry
(Elsevier, 1987)
The digestive tract of the newly hatched milkfish larva is a simple undifferentiated tube. Three days after hatching, differentiation of the esophagus begins with development of mucous-secreting cells. At this time, the ...
The response of Penaeus monodon juveniles to varying protein/energy ratios in test diets
(Elsevier, 1986)
Two sets of factorial experiments were conducted for 8 weeks to determine the response of Penaeus monodon juveniles (average weights = 0.60 ± 0.16 g and 0.80 ± 0.05 g) to diets containing various protein/energy ratios. The ...
Growth and mid-gut cells profile of Penaeus monodon juveniles fed water-soluble-vitamin deficient diets
(Elsevier, 1989)
Growth and changes in the mid-gut cell morphology of Penaeus monodon juveniles were evaluated after feeding for 35 days with semi-purified diets deficient in water-soluble vitamins. Diets were prepared by deleting one ...
Breeding and larval rearing of the rabbitfish, Siganus guttatus (Bloch)
(Elsevier, 1985)
Females of Siganus guttatus reared to sexual maturity in canvas tanks were induced to spawn by using human chorionic gonadotropin (HCG, Ayerst) at 500 IU/fish or about 2 IU/g body weight. The amount of HCG used depended ...