نتایج جستجو برای: fish culture

تعداد نتایج: 378445  

Journal: :international journal of environmental research 0

present communication deals with the study of four village fish culture ponds (two wild and two managed ponds) from district hisar of haryana, india was undertaken, to correlate the water quality and biological cycles in ponds with fish production. studies have revealed that the ponds are in good trophic status. chlorides, total hardness, calcium, magnesium, biochemical oxygen demand (bod), pho...

Journal: :Journal of Scientific Research and Reports 2017

Journal: :Proceedings of the National Academy of Sciences 2016

Journal: :SDRP Journal of Earth Sciences & Environmental Studies 2018

Journal: :Acta Scientiarum. Animal Sciences 2014

2016
Rosalind A. Leggatt L. Fredrik Sundström Wendy E. Vandersteen Robert H. Devlin Paul Eckhard Witten

Domesticated and growth hormone (GH) transgenic salmon provide an interesting model to compare effects of selected versus engineered phenotypic change on relative fitness in an ecological context. Phenotype in domestication is altered via polygenic selection of traits over multiple generations, whereas in transgenesis is altered by a single locus in one generation. These established and emergin...

2000
Norman B. Schwartz

The study evaluated the status of fish pond projects initiated in the 1980s on resource-poor farms in Guatemala and Panama. In both places, the host country and the United States Agency for International Development (USAID) provided financial assistance and Auburn University provided technical support to the respective governments. The study examined the impact of aquaculture technology, extens...

ژورنال: اکوبیولوژی تالاب 2020
minabi, ebrahim, morammazi, jasem, Yavari, vahid,

Due to fresh water resource limits and environmental damage caused by aquaculture waste using systems based on sustainable development at the global level is highly regarded. Aquaponics or fish and plant co-culture system is one of the new approaches to achieve aquaculture sustainable development. In this study which was conducted , in 2015, at Ahvaz Azadegan warm water fish culture complex, 6 ...

2014
Nelson Colihueque Cristian Araneda

Appearance traits in fish, those external body characteristics that influence consumer acceptance at point of sale, have come to the forefront of commercial fish farming, as culture profitability is closely linked to management of these traits. Appearance traits comprise mainly body shape and skin pigmentation. Analysis of the genetic basis of these traits in different fish reveals significant ...

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