Article published the 14 from October from 2016
Feed management is a key factor affecting water quality (Boyd and Tucker 1998, Jory 1995) and production economics in aquaculture (Jolly and Clonts 1993). Not only is the feed the initial 0source of physiological wastes, but it accounts for 55% to 60% of the operation costs in intensive systems and around 40% in semi-intensive systems (Chanratchakool et al. 1994, Lovell 1998) ...
Article published the 30 from November from 2012
World food supplies must not only meet the needs of an expanding population but it must also provide for increased consumption as the standard of living of the existing population improves. This means the demand for resources is rising exponentially and is one of the biggest challenges facing agriculture since the "green revolution". Projections from the Food and Agriculture Organization (FAO) of ...
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7 from August from 2012