The effects of oil-coated pellets on carp (Cyprinus carpio) in intensive culture

Effect of crude oil extracts from trout offal as a replacement for fish oil in the diets of the Australian native fish Murray codMaccullochella peelii peelii

“…Also, this probably means that the Murray cod is not able to use SFAs as an energy source efficiently and, consequently, these tend to get deposited, to an optimal level, in preference to other fatty acid categories. Such a trend has also been reported for other species (Mugrditchian et al 1981; Viola et al 1981; Greene & Selivonchick 1990).…”

“…It is also known that the level(s) of one or more spe-ci¢c fatty acid can be adjusted to narrowly de¢ned physiological levels (Yu, Sinnhuber & Putnam 1977;Greene 1990;Greene & Selivonchick 1990;Arzel, Martinez Lopez, Me¤ tailler, Ste¤ phan, Viau, Gandemer & Guillaume 1994;Guillou, Soucy, Khalil & Adambounou 1995). However, the correlations between the amounts of individual fatty acids in the diets and the corresponding amounts in muscle were not always obvious, as has been reported previously (Mugrditchian, Hardy & Iwaoka 1981;Viola, Rappaport, Arieli, Amidan & Mokady 1981;Kennish et al 1992). The mean percentage of SFA in muscle was 3.5% higher than in the diet, and this is in agreement with what has been reported previously (Yu et al 1977;Greene 1990;Greene & Selivonchick 1990).…”

Fish oil replacement in finfish nutrition

“…2007). Similar effects have been reported in almost all finfish species studied to date, from carnivorous to herbivorous species and from marine cold water to tropical freshwater species fed with VO, terrestrial animal fats or blends (Stickney & Andrews 1972; Yingst & Stickney 1979; Viola et al. 1981; Stickney & McGeachin 1983a; Fracalossi & Lovell 1995; Steffens et al.…”

“…However, the correlations between the amounts of specific individual fatty acids in the diets and the corresponding amounts in muscle are not always that obvious (Mugrditchian et al. 1981; Viola et al. 1981; Kennish et al.…”

Studies on the utilization of full-fat soybean and solvent extracted soybean meal in a complete diet for rainbow trout.

“…For example, by using various heat treatment techniques it has been possible to greatly enhance the nutritional value of soybeans for animals.1) Attempts to partially or com pletely replace the fish meal component of practical fish feeds with commercially available soybean meals have met with variable success, and in the main have resulted in reduced growth and poor feed conversion efficiency at high dietary inclusion levels.2-10) Although individual fish species do seem to vary in their ability to utilize dietary soybean,11-13) it is generally believed that the poor growth response observed by many researchers was due to 1) inadequate heat treatment of the soybean used, and consequent failure to destory the heat labile anti-nutritional factors present,1, 14) and/or 2) the lack of additional energy, essential amino acid and mineral supplementation within these rations. [15][16][17] The objective of the present study was to com pare the nutritive value of five different com mercially available soybean meals (heat processed and/or solvent extracted to varying extents), as a partial replacement for Peruvian fish meal in a practical diet for rainbow trout Salmo gairdneri. physically similar to and intimately associated with the dietary material it is to mark; 2) it is neither metabolised nor absorbed in the gastro intestinal tract of trout,23) and 3) is present within the experimental rations in equal amounts (Table 2).…”