Jammu division of Jammu and Kashmir is a region of high biological diversity and endemicity of fish fauna, but very little is known about the distribution of freshwater indigenous ornamental fish. The study was carried out across the tributaries of three rivers viz., Chenab, Tawi and Basantar to study the diversity of ornamental fish. Regular collection trips were carried out at 13 different stations for a period of one year from December 2017 to December 2018 and a total of 30 species were reported belonging to 8 families and 18 genera. In all the study stations Cyprinidae family was found to be most prevalent (85%) and Osphronemidae (1%) was the least. The present work is a preliminary study on the distribution and abundance of ornamental fishes from freshwater bodies of Jammu.
The present study was undertaken to assess the efficacy of oxygen scavenger, the most widely used technique of active packaging, in extending the shelf life of fresh rohu (Labeo rohita) steaks during 28 days in chilled storage conditions (0-2 o C). Fresh rohu steaks were divided in two lots; the first lot was packed aerobically inside the EVOH (ethylene -vinyl alcohol) pouch, and the second lot was packed in EVOH pouch along with oxygen scavenger (OS). The oxygen scavenger effectively reduced the oxygen level inside the packs to <0.14% within 2 days of storage. During storage, a significant (p<0.05) reduction in rate of free fatty acid formation and lipid oxidation, indicated by thiobarbituric acid value (TBA) was observed for rohu fish steaks packed with oxygen scavenger in comparison to the air pack samples. The decreasing trend in proximate composition was also higher in air pack samples than those packed with oxygen scavengers. The limit of 7 log cfu g -1 of total plate count was crossed by control sample on 14 th day of storage, while in oxygen scavenger packed sample, the total plate count reaches up to 6.78log cfu g -1 at the 28 th day of storage. As per sensory evaluation, the air pack samples were rejected on 14 th day, while oxygen scavenger steaks were acceptable till 28 th day of storage.
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