33 research outputs found
Studies on the diversity and impact of macro biofouling organisms in brackish water finfish cage
Biofouling refers to accumulation of organisms on
submerged surfaces. In case of open water cage
culture, fouling organisms attached to cage nets
block water flow and reduces waste removal
resulting in increased stress levels on stocked fishes
and reduces the rate of intake of feed and growth.
It also increases weight of the nets leading to its
damage. The quantity and diversity of biofouling
organisms and their effects on the growth and
survival of stocked fishes were studied
Effect of Feeding Frequencies on Growth and Profit of Asian Seabass (Lates calcarifer) in Cage Culture Systems
Cage culture is one of the most advanced aquaculture production systems where fishes are held in floating enclosures like net
cages, moored in the open water systems, and allow free water flow. The open water cages developed by Central Marine Fisheries
Research Institute (CMFRI) during the last decade are becoming very popular in coastal waters. One of the major problems faced
by farmers at all stages of culture is fish feed and feeding. A suitable feeding strategy is important to improve fish growth and
reduce feed costs and environmental pollution. The study was conducted to investigate the effect of feeding frequency from sea
bass cultured in cages on water quality, growth parameters, survival rate, economic return and bottom characters in Moothakunnam
(N10011.478’ E076011.901’+ 4m) in Ernakulam district. Water and sediment samples and growth parameters were collected and
analyzed monthly from inside and outside of the cages for a period of one year. Significant differences were found in growth
parameters like weight gain (1.04±0.03-1.78±0.008), Specific growth rate (1.2±0.03-1.48±0.005), Survival rate (40%-61.53%)
and FCR (4.3-4.56). The water quality parameters DO, Nitrate, Nitrite, Ammonia and Orthophosphate in the cage and reference
sites did not show many significant variations indicating a healthy growth condition in the cages. Therefore it could be concluded
that the growth performance of sea bass is increasing by feeding frequency, but the economic analysis indicated that net profit is
negatively related to feeding frequency
Providing perioperative care for patients with hip fractures
Providing perioperative care for patients with hip fractures can present major challenges for the anaesthesiologist. These patients often have multiple comorbidities, the deterioration of any one of which may have precipitated the fall. A careful balance has to be achieved between minimising the time before operation and spending time to optimise their medical status. This review will present insights into preoperative patient assessment and optimization in this group of patients from the anaesthesiologists’ perspective. In particular, it will highlight important medical issues of concern that may alter anaesthetic risks and management. With a greater understanding of what these issues are, potentially a more prompt and integrated approach to managing these patients may be made. Hopefully, this would result in minimising last minute cancellations due to medical reasons for these patients