Replacement of fish meal by plant proteins in the diet of rainbow trout (Oncorhynchus mykiss): digestibility and growth performance

Gomes, E.; Rema, Paulo; Kaushik, Sadasivam

doi:10.1016/0044-8486(94)00211-6

Cited by 341 publications

(227 citation statements)

References 18 publications

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“…In this study, the highest lipid retention and lipid content in muscle were observed in group 1 (control), including a low Cu rate in tissue and organs; the lowest nitrogen intake and the highest nitrogen retention were obtained from group 4, including the highest Cu rate. Furthermore, WG, SGR and FCR were similar in groups, while FCR values obtained in this study are similar to FCR values obtained from the feeding studies of different researchers (Cheng et al, 2002;Bureau et al, 2000;Gomes et al, 1995;Krogdahl et al, 1994;Morales et al, 1994). These results can be explained by disappearance of the metal stress and toxic effects, with reduction of Cu concentrations in tissues and organs of fish.…”

Section: Discussionsupporting

confidence: 75%

Elimination of copper in tissues and organs of rainbow trout (Oncorhynchus mykiss, Walbaum, 1792) following dietary exposure

Gündoğdu

Harmantepe

Karsli

et al. 2011

Italian Journal of Animal Science

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Copper (Cu) elimination was investigated in the tissue and organs of rainbow trout (Oncorhynchus mykiss, Walbaum, 1792), after Cu-free diets exposure. In the current study, fish were fed to satiation on diets containing 0.022 (Group 1; Control), 0.043 (Group 2), 0.123 (Group 3), 0.424 (Group 4) g Cu*kg -1 diet for 60 days before elimination experiment. A total of 288 fish (mean weight 84.28±1.05 g) were randomly transferred to 12 fibreglass tanks. The fish were fed the Cu-free diet twice daily, until apparent satiation, during 60 days. Subsequently, the experiment was established for a period of elimination, during which samples were taken at days 15, 30, 45 and 60. Cu concentration in the muscle, gill tissue, digestive system, liver and whole body of fish were determined after 60 days depuration.Cu concentrations in tissues of rainbow trout decreased during depuration period, and the order of Cu elimination in tissue and organs of rainbow trout was: digestive system (73.1 %), then gill (41.1 %), muscle (31.5 %) and liver (17.2 %) for group 2; digestive system (74.1%), then muscle (65.8%), gill (60.0%) and liver (34.6%) for group 3; and digestive system (85.8%), then muscle (80.8%), liver (50.5%) and less/equal in gill (50.2%) for group 4. In statistical analysis, both groups and time were significant factors (P<0.05) on elimination rate. Moreover, significant interaction between groups and time were identified on elimination rate. Digestive system showed the fastest elimination rates of Cu at all groups compared with other tissues.

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Section: Discussionsupporting

confidence: 75%

Elimination of copper in tissues and organs of rainbow trout (Oncorhynchus mykiss, Walbaum, 1792) following dietary exposure

Gündoğdu

Harmantepe

Karsli

et al. 2011

Italian Journal of Animal Science

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“…In addition to ambient water quality condition, quality of the ingredients play crucial role in voluntary intake of a formulated diet. Gomes et al (1995) observed depression in voluntary diet intake of rainbow trout when fishmeal was totally replaced by vegetable protein. But no such depression was found in tilapia fed 100% vegetable protein.…”

Section: Discussionmentioning

confidence: 97%

Evaluation of fermented fish offal in formulated diet of the Indian major carp, rohu, Labeo rohita (Hamilton)

Mondal¹,

Kaviraj²,

Mukhopadhyay³

et al. 2007

Acta Icth et Piscat

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. 2007. Evaluation of fermented fish offal in formulated diet of the Indian major carp, rohu, Labeo rohita (Hamilton). Acta Ichthyol. Piscat. 37 (2): 99-105.Background. Carp fish offal contains high amount of protein and lipid. The quest for protein sources alternative to fish meal has been a priority in aquaculture research because of growing concerns on the future availability of fish meal for incorporation in fish diets. This study determined the extent to which carp fish offal could be fermented and used to replace fish meal in the formulation of diet for fingerlings of Labeo rohita. Materials and Methods. Fish offal, comprising viscera of carp, was fermented along with mustard oil cake and rice bran anaerobically by a microbial suspension (10 8 cells · mL -1 ) under ambient temperature (27-30ºC). The fermented mixture was mixed with fish meal, mineral-and vitamin mixture to prepare three experimental diets: 1) a reference diet (T1), without any fermentation mixture, containing 40% fish meal, 2) a diet containing 25% fish offal (fermented) and 25% fish meal (T2), and 3) a diet containing 30% fish offal (fermented) and 20% fishmeal (T3). These diets were tested to evaluate growth and biochemical composition of the body of the fingerlings of Labeo rohita and apparent protein digestibility (APD) and intake rate of the diets by the fish. Proximate analysis of feed ingredients, experimental diets, faecal samples and the carcass were performed following the AOAC procedures. Results. Fingerlings of Labeo rohita, reared for 60 days with the diets containing fermented fish offal mixture (T2 and T3), showed higher growth and higher values of protein and lipid in the carcass than those reared with the reference diet (T1). Apparent protein digestibility of the diets did not vary significantly, but average feed intake rate of the T2 and T3 diets were higher than the T1 diet. Conclusions. Fermented fish offal is a viable alternative of fish meal in the formulation of diet for fingerlings of Labeo rohita. Fifty percent replacement of fish meal is possible by a mixture containing 30% fish offal. Further studies are required to improve quality of the fermentation mixture and increase the rate of replacement of fish meal.Keywords: fish offal, recycling, fishmeal, protein, growth, rohu, Labeo rohita ascertained as nutrient sources probably because of inherent difficulties in handling it either in dried or in raw condition. While drying of the offal results in considerable loss of the nutrients, its direct use leads to rapid spoilage of the whole diet. In the present study an attempt was made to evaluate if fish offal (FO) could be fermented and used to replace fish meal (FM) in the preparation of formulated fish diet. The process of fermentation or composting is widely employed in fish diet formulation to decrease the anti-nutritional factors and crude fibre content of plant diet stuff Das 1992, Bairagi et al. 2002). The process of fermentation improves nutritional quality of animal product also. Rangacharyulu et al. (2003) o...

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“…In many of these other studies, fish meal-based control diets were not used, or the concentrations of other non-soy protein sources were altered in the experimental diets [14][15][16]24,[48][49][50][51][52][53]. However, Barrows et al [54] suggested that soybean meal replacement for fish meal should be limited to less than 25% (or 10% to 15% dietary inclusion rates).…”

Section: Discussionmentioning

confidence: 99%

“…Anti-nutritional factors can be reduced during feed extrusion [24,25] and by infra-red micronization [24]. Processed (solvent and heat treated) soy protein concentrates have lower concentrations of many antinutritional factors [26].…”

Section: Introductionmentioning

confidence: 99%

An initial investigation replacing fish meal with a commercial fermented soybean meal product in the diets of juvenile rainbow trout

Barnes¹,

Brown²,

Rosentrater³

et al. 2012

OJAS

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The inclusion of PepSoyGen (PSG), a commercially-available fermented soybean meal product, was evaluated with juvenile rainbow trout, Oncorhynchus mykiss in an initial 70-day feeding trial, with a supplemental trial involving a subset of the experimental diets continuing for an additional 40 d. Six diets containing 0%, 10%, 20%, 30%, 40%, or 50% PSG, with the PSG directly replacing fish meal, were used in the first trial. There were no significant differences in weight gain or feed conversion ratio between the fish meal-based control diet and diets containing up to 30% PSG. However, weight gain was significantly reduced and feed conversion ratio significantly increased with the 40% and 50% PSG diets. No health assessment differences were observed in fish receiving any of the diets, and no evidence of gross gut inflammation was evident. There were no significant differences in weight gain or feed conversion ratio among the four dietary treatments ranging from 0% to 30% PSG which were fed for an additional 40 d after the initial 70-d trial (110 days total). Based on these results, juvenile rainbow trout diets can contain up to 30% PSG without any loss of rearing performance, thereby replacing at least 60% of the fish meal.

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Replacement of fish meal by plant proteins in the diet of rainbow trout (Oncorhynchus mykiss): digestibility and growth performance

Cited by 341 publications

References 18 publications

Elimination of copper in tissues and organs of rainbow trout (Oncorhynchus mykiss, Walbaum, 1792) following dietary exposure

Elimination of copper in tissues and organs of rainbow trout (Oncorhynchus mykiss, Walbaum, 1792) following dietary exposure

Evaluation of fermented fish offal in formulated diet of the Indian major carp, rohu, Labeo rohita (Hamilton)

An initial investigation replacing fish meal with a commercial fermented soybean meal product in the diets of juvenile rainbow trout

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