Effects of fishing techniques on the flesh quality of Rutilus frisii (Nordmann, 1840)
Paria
Raoufi
Department of Fisheries, Faculty of natural resource, University of Gonbad Kavous, Gonbad Kavous
author
Seyed Mehdi
Ojagh
Department of Fishery, Faculty of Fisheries and Environment, Gorgan University of Agricultural Science and Natural Resources, Gorgan
author
text
article
2019
per
Beach seine and gillnetting are the most common fishing techniques of Kutum sefid (Rutilus frisii) in the southern Caspian Sea. Gillnetting carries offshore, therefore some fish die (net stays in the water for a few days) in the water but using beach seine keeps the fish alive. The situation of fish before death is an important factor affecting the flesh quality of fish. Fishing technique affects the flesh quality due to its impact on making stress on fish. Therefore, fishing techniques that cause lower physiological responses could increase flesh quality. Stress affects pH and rigor mortis and accelerates fish spoilage. Thus, the fishing must be managed to reduce stress before death.
مجله شیل
2588-5626
6
v.
4
no.
2019
139
144
https://shilsj.ut.ac.ir/article_73389_8c75efa1f2e7dee43a20d74f40fb42f9.pdf
Application of polysaccharides in aquaculture: immunomodulatory effects and future perspectives
Ghasem
Rashidian
Department of Aquaculture, Faculty of Faculty of Marine Sciences, University of Tarbiat Modares, Nor
author
text
article
2019
per
Polysaccharides have been used in aquaculture for different purposes such as main constituents of the diet (starch), binders (fibers) and immunostimulants. Although new immunostimulants can be safer alternatives for antibiotics, there is still a lot to know about the fish immune system; by which understanding that exactly which mechanism of the immune system is responsible for protection against pathogens is still unknown. Polysaccharides are important biological molecules and are present in plants, animals, and microbes. Polysaccharides have been considered a broad spectrum immunostimulant since the 1960s. An in-depth study of immunostimulants indicates the increasing development of the use of polysaccharides in aquaculture. Polysaccharides stimulate growth, strengthen the immune system, and improve disease resistance. Ongoing research into the mechanism of action of polysaccharides in aquaculture will provide further scientific evidence for further standardization and effective use of this group in aquaculture. In this study, we will be focused on the role of polysaccharides as immune stimuli and prospects for their use in aquaculture.
مجله شیل
2588-5626
6
v.
4
no.
2019
145
150
https://shilsj.ut.ac.ir/article_73390_d41d8cd98f00b204e9800998ecf8427e.pdf
Application of edible fibers in surimi and its products
Sakine
Heydari
Department of Fishery, Faculty of Fisheries and Environment, Gorgan University of Agricultural Science and Natural Resources, Gorgan
author
Bahare
Shabanpour
Department of Fishery, Faculty of Fisheries and Environment, Gorgan University of Agricultural Science and Natural Resources, Gorgan
author
Parasto
Ashouri
Department of Fishery, Faculty of Fisheries and Environment, Gorgan University of Agricultural Science and Natural Resources, Gorgan
author
text
article
2019
per
Today, most consumers in addition to being the healthy and nutritional value of its food, its health effects are concerned. seafood contains protein and beneficial fats but they have little fiber by adding dietary fiber (wheat fiber, oat fiber and cellulose (completed in the nutrition. Surimi enrichment and its products with edible fiber can be effective in preventing heart disease, diabetes, obesity. Edible fibers can be used in surimi and its products like binders, fillers, coatings and have positive effects on pH, texture, color and sensory properties. Since the effects of using different fibers are different, so this article reviews the use of different fibers in the production of surimi products.
مجله شیل
2588-5626
6
v.
4
no.
2019
151
157
https://shilsj.ut.ac.ir/article_73391_9704d62d41f0e6a610b4e7374e3b6bd3.pdf
Presentation of a Practical-Economic Method (Fish Farming in Sand Washing Tanks) Using Dual Purpose
Arash
Joladeh
دانشجو
author
Pezhman
Khalili
Department of Fisheries, Faculty of Natural Resources, Isfahan University of Technology, Isfahan
author
Sayyed Ali
Moezzi
2Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj
author
text
article
2019
per
The increasing utilization of fisheries resources and the increasing global demand for food have made it necessary to take a fresh look at the nature and potential of the aquaculture sector. If the aquaculture sector is expanding at the current rate, it is projected that by 2020 the aquaculture production will reach 132 million tons. Today, aquaculture production systems need to be programmed to produce sustainable and economical crops. Fish farming in sand reservoirs is an easy and inexpensive activity considering the potential of sand mines in the country. Such integrated production optimizes resource consumption through the complementary use of land and water. Fish farming is one of the relatively new strategies in the world in which, in addition to optimizing water consumption, protein production as an important human food source is also the first step in identifying these species and determining their water quality is Given the 1437 sand mines in the country, there is a great potential for fish farming in the leaching tanks of these mines. Given that all the benefits of using these types of tanks are sustainable agricultural purposes, it is recommended to promote fish farming in tanks. Sand washing has received more attention and more research is needed to achieve a resilient economy.
مجله شیل
2588-5626
6
v.
4
no.
2019
158
165
https://shilsj.ut.ac.ir/article_73392_22b976336d88468f888a9c0f7d83a892.pdf
Investigation of morphological variation of Alburnoides cf. tabarestanensis in Gorganroad basin
altin
Qojoqi
student
author
Rahman
Patimar
Department of Fisheries, Faculty of Natural Resources, University of Gonbad Kavous,Iran
author
Hojat
Jafariyan
Department of Fisheries, Faculty of Natural Resources, University of Gonbad Kavous,Iran
author
Kiyavash
Golzariyanpour
Faculty of Sciences, Gonbad Kavoos University, Gonbad Kavoos, Iran
author
text
article
2019
per
In this study, a total of 95 Alburnoides tabarestanensis were caught in four rivers including Zaringol, Tilabad, Zav and Yelcheshme from July to November 2016. 36 morphometric and nine meristic characteristics were studied. Standardized data were analyzed using PCA to determine the differences between the studied populations. In obtained results using the PCA method from the morphometric characteristics of four rivers, there were observed the distinction of populations and some of the morphometric characteristics of A. tabarestanensis are separated. But the meristic characteristics of this fish in four mentioned rivers very close together, and there was high overlap in their characteristics.
مجله شیل
2588-5626
6
v.
4
no.
2019
166
177
https://shilsj.ut.ac.ir/article_73393_519b361b0923eb1c2a46aa31d2554c51.pdf