نتایج جستجو برای: fish production
تعداد نتایج: 700935 فیلتر نتایج به سال:
This study was conducted in 2015 to identifying problem and limitations of development of carp farming in Rasht. The method of descriptive research was survey research. The statistical population of fish farmers was 1022 around the Rasht and Sangar basin. The samples were determined by using of Bartlett minimum sample size table (n=175) which were conducted with random sampling. The comments of...
Atrazine, the widely used herbicide, has shown to affect the hypothalamus-pituitary-gonad axis in certain vertebrate species, but few studies have examined reproductive effects of this chemical on fish. Our study was designed to evaluate a population endpoint (egg production) in conjunction with histological (e.g., gonad development) and biochemical (e.g., hormone production) phenotypes associa...
Ornamental fish farming, like other aquaculture productions, it depends on the quality and quantity of egg production, hatching, fecundity and survival of the larvae. In general, every step of aquaculture, followed by nutritional goals. Most of these studies are in the stages of larval growth. Because the highest costs are imposed on aquaculture and the most critical biological period of orname...
Aquaculture has been an important economic sector in Vietnam due to its rapid growth and considerable contribution to national fisheries production. With data collected from a field survey interviewing 120 fish farmers in southern Vietnam, this study uses a cumulative logistic model to extend the satisfaction approach to an analysis of the farmers’ satisfaction with their fish farming. Regressi...
Fish sauce production is a very long process and there is a great interest in shortening it. Among the different strategies to speed up this process, the addition of external proteases could be a solution. This study focuses on the effect of two commercial enzymes (Protamex and Protex 51FP) on the proteolysis of two fish species traditionally converted into fish sauce: sardine and anchovy, by c...
remained relatively stable over the past two decades while fish production through aquaculture has progressivly increased. The Indian fisheries sector has come a long way since independence (Figure 1) and has contributed immensely to the food basket of the country, with annual production levels of over six million tonnes of fish and shellfish from capture fisheries and aquaculture. India is the...
This paper introduces the fish feed production routing problem (FFPRP) faced by Norwegian salmon producers. The FFPRP is comprised of a scheduling and rich vehicle (VRP) thus denotes variant integrated problem. We present discrete time mixed integer programming (MIP) model FFPRP. Specifically, incorporates multi-product, multi-trip, multi-depot setting, where orders are produced at lines factor...
In the present study the effect of Probiotic Pediococcus acidilactici (Bactocell) and Iron was examined on growth performance in Caspian Sea Brown trout (Salmo trutta caspius) fry. 2430 fish with primary weight 3.59 g were divided in 9 experimental groups each include 90 fish, with 3 replications and studied for 60 days. Fish in control group was feed using commercial food (Skretting, Co.) And...
Fish meal is considered a major source of protein commonly used in domestic animal feeds as well as in commercial aqua feeds. The present study documents the different species used for the production of fish meal in Pakistan and to determine the proximate composition of fish meal samples obtained from these units. Samples of fish meal were collected from nine different commercial fish meal proc...
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