17 research outputs found
Successful sex reversal of Greasy Grouper, Epinephelus tauvina (Forsskal, 1775)
Large scale development of the grouper culture
industry has been hindered by the lack of seed for
stocking, which is due to the lack of a standardised
method for controlled sex change and also due to
the unavailability of mature male broodstock
Broodstock development of greasy grouper Epinephelus tauvina (Forsskal, 1775)
Development of grouper aquaculture is one of
the most important aquaculture targets in the
tropics
Technology on seed production and culture of orange spotted grouper - A breakthrough for Indian mariculture
Mariculture represents an immense opportunity
for food production but remains a largely untapped
farming activity. At present, the contribution of
marine/coastal aquaculture production to the
IndiaтАЩs production (2014) is around 10% (0.49 million
tonnes), in which crustaceans, finfishes and molluscs
contributes 0.386 (7.9%), 0.09 (1.84%) and 0.014
(0.29%) million tonnes (t) respectively. The major
reason for the low production levels in this sector
is that unlike the freshwater sector, the contribution
by the finfish is meagre and mainly limited to
shellfish such as shrimps and prawns
Cage culture of Hilsa (Tenualosa ilisha) in Ukai Reservoir, Gujarat, India - A Novel Initiative
Hilsa is a fast swimmer and 31% a highly migratory
and anandromous fish that prefers to inhabit a part of its
life in the sea, not far from the shallow coastal belt due
to the presence of subsurface oxygen, relatively low
salinity, strong tidal action, high turbidity, heavy siltation and rich growth of plankton (Pillay and Rosa, 1963; Sahu et al., 220l6). Hilsa has a wide salinity tolerance and inhabits freshwater, estuarine and the coastal waters
Not Available
Not AvailableHilsa is a fast swimmer and 31% a highly migratory
and anandromous fish that prefers to inhabit a part of its
life in the sea, not far from the shallow coastal belt due
to the presence of subsurface oxygen, relatively low
salinity, strong tidal action, high turbidity, heavy siltation and rich growth of plankton (Pillay and Rosa, 1963; Sahu et al., 220l6). Hilsa has a wide salinity tolerance and inhabits freshwater, estuarine and the coastal waters.Not Availabl
Not Available
Not AvailableHilsa is a fast swimmer and 31% a highly migratory
and anandromous fish that prefers to inhabit a part of its
life in the sea, not far from the shallow coastal belt due
to the presence of subsurface oxygen, relatively low
salinity, strong tidal action, high turbidity, heavy siltation and rich growth of plankton (Pillay and Rosa, 1963; Sahu et al., 220l6). Hilsa has a wide salinity tolerance and inhabits freshwater, estuarine and the coastal waters.Not Availabl
Not Available
Not AvailableLarge scale development of the grouper culture
industry has been hindered by the lack of seed for
stocking, which is due to the lack of a standardised
method for controlled sex change and also due to
the unavailability of mature male broodstock.Not Availabl
Not Available
Not AvailableLarge scale development of the grouper culture
industry has been hindered by the lack of seed for
stocking, which is due to the lack of a standardised
method for controlled sex change and also due to
the unavailability of mature male broodstock.Not Availabl
Molecular detection of Leptospira spp. from canine kidney tissues and its association with renal lesions
Aim: The study aimed to detect the prevalence of Leptospira spp. in kidney tissues collected during necropsy and to establish its association with renal lesions in dogs of Mumbai region.
Materials and Methods: Kidney tissues from 40 dogs were collected during necropsy after gross examination and then fixed in neutral buffered formalin and Bouin's fluid for histopathology and histochemistry, respectively. Kidney tissues were also collected for the detection of Leptospira spp. by polymerase chain reaction (PCR) in a sterile container and stored at -80┬░C until further processing.
Results: Of 40 cases studied, 13 (32.5%) cases showed lesions of nephritis of varying histotype and severity. Glomerulonephritis was reported as the most common type of nephritis in 9 (69.23%) cases, and interstitial nephritis was recorded in 4 (30.76%) cases. Chronic and acute interstitial nephritis was observed in two cases each. Renal failure as a cause of death was found in 7 (17.5%) dogs. Of a total of 40 cases, 9 were found positive for pathogenic Leptospira spp. genome by PCR. However, of nine PCR-positive cases, only four cases showed lesions in kidneys as glomerulonephritis and interstitial nephritis in two cases each. The rest five cases positive for Leptospira spp. by PCR did not show any appreciable lesions in the kidneys.
Conclusion: Leptospiral DNA was detected in 9 (22.5%) cases by PCR. Of these nine cases, only four cases showed renal lesions. Other five cases which were positive for Leptospira spp. by PCR did not show any appreciable gross and microscopic lesions in the kidneys which might be carriers for Leptospira spp. Considering variable reports on types of nephritis in Leptospira spp. infection and also the prevalence of non-pathogenic Leptospira spp., it is important to conduct an extensive study on the prevalence of Leptospira spp. and its association with renal lesions involving batteries of tests
Not Available
Not AvailableDevelopment of grouper aquaculture is one of
the most important aquaculture targets in the
tropics.Not Availabl