Influence of dietary protein and lipid levels on growth, body composition and utilization efficiencies of Arctic charr, <i>Salvelinus alpinus</i> L.

Tabachek, Jo-Anne L.

doi:10.1111/j.1095-8649.1986.tb04933.x

Cited by 36 publications

(21 citation statements)

References 13 publications

(10 reference statements)

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“…In the present study, BWG and SGR increased with increasing protein in the diet up to 44% CP. These parameters significantly improved as the dietary protein level increased up to an optimum level, beyond which they plateaued or slightly decreased, consistent with results reported for other species including Arctic char, Salvelinus alpinus (Tabacheck 1986); red drum, Sciaenops ocellatus (Jirsa et al 1997); and Florida pompano, Trachinotus carolinus Lazo et al (1998). In some species, when the protein requirement is exceeded, the growth rate remains constant or decreases (Jauncey 1982).…”

Section: Discussionsupporting

confidence: 86%

Dietary Protein Requirements of Juvenile Black Sea Bass, Centropristis striata

Alam

Watanabe

Carroll

2008

J World Aquaculture Soc

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A feeding trial was conducted in a recirculating system to determine the dietary protein requirement for juvenile black sea bass. Six isocaloric diets were formulated to contain varying levels of crude protein (CP) ranging from 36 to 56% (36, 40, 44, 48, 52, and 56%) by substituting a mixture of carbohydrates and lipid for fish meal. The feeding experiment was carried out in 18‐75 L aquaria stocked at a density of 15 juveniles (initial average weight 6.7 g) per tank. Fish were fed test diets in triplicate tanks to apparent satiation twice a day for 8 wk. Whole‐body proximate composition was analyzed after the feeding trial. After the feeding trial, weight gain and specific growth rate of fish fed the 44% CP diet were not significantly different from those fed the 48, 52, and 56% CP diets, but were significantly higher (P < 0.05) than those fed the 36 and 40% CP diets. Feed conversion efficiency and protein efficiency ratio were significantly affected by dietary protein level. The dietary requirement of protein for maximum growth of black sea bass juveniles, estimated using broken‐line regression analysis on weight gain, was 45.3% and maximum weight gain occurred at 52.6% based on polynomial regression analysis.

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Section: Discussionsupporting

confidence: 86%

Dietary Protein Requirements of Juvenile Black Sea Bass, Centropristis striata

Alam

Watanabe

Carroll

2008

J World Aquaculture Soc

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“…Tabachek (1986) reported similar findings while investigating the influence of dietary protein and lipid levels on growth, body composition and utilization efficiencies of Arctic charr, Salvelinus alpinus L. Statistics further showed that PER of T3 was significantly higher (p<0.05) than other treatments. The significant value of PER in this study was as a result of the level of fat in the diet.…”

Section: Resultssupporting

confidence: 56%

Nutrient utilization and growth of Clarias gariepinus fed four different commercial feeds

Oluyinka¹,

Ajani²,

Richards³

2015

Int. J. Fish. Aquac.

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Several studies had been conducted on the nutritional requirements of African catfish, Clarias gariepinus. Nevertheless, currently there is a gap about the gross composition of feed ingredients required for formulation of commercial feeds. The aims of this feeding trial were to investigate whether fish fed four different commercial feeds have a significant growth rate and nutrient utilization. A total of 120 fish samples were stocked for a triplicate feeding trial (10 fish for each replication) in 4 separated tanks with 4 different feeds: Euro, Melick, Coppens and Durante (T1), (T2), (T3) and (T4) respectively. During all the trial, the water quality and growth parameters were determined according to standard methods and no significant differences were found among the water quality parameters determined. The mean weight gain (MWG) and specific growth rate of T3 were significantly higher than those of other treatments. Statistics showed that protein efficiency ratio (PER) of T3 was significantly higher than other treatments. Contrary to the above trend, the feed conversion ratio (FCR) of T2 was significantly higher than other treatments. According to the results of this study, fish fed with Coppens feed showed a significant growth rate and nutrient utilization.

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“…Our results indicate that young Arctic charr require between 340 and 392 g kg-' dietary DCP (equivalent to -370 to -420 g kg-' crude protein) for optimum growth irrespective of the statistical method applied (Table 5). These levels are within the requirement range of 350-45Og kg-' dietary crude protein suggested by Jobling & Wandsvik (1983a) but are lower than the 440-54Og kg-' dietary crude protein range reported by Tabachek (1986) for this species. These values consequently confirm and refine the requirements recommended by Jobling & Wandsvik (1983a), giving a slightly reduced upper estimate and a narrower range.…”

Section: Resultssupporting

confidence: 49%

“…These values consequently confirm and refine the requirements recommended by Jobling & Wandsvik (1983a), giving a slightly reduced upper estimate and a narrower range. Tabachek (1986) compared her results with those of Jobling & Wandsvik (1983a) and suggested that their diets were too low in protein and/or lipid to allow a true measure of Arctic charr protein requirements, because the highest protein level they used (440g kg-I) provided only 1 l o g kg-' lipid. She reported that a higher level of lipid (150 or 200 g kg-I) promoted greater weight gain in charr fed both 440 and 540g kg-' crude protein diets and attributed this to the sparing effect of the extra lipid, which improved the efficiency of protein use for growth, as previously reported by Takeuchi et al (1978) for rainbow trout.…”

Section: Resultsmentioning

confidence: 99%

“…Although a few studies have been carried out to evaluate the nutritional needs of Arctic cham (Jobling & Wandsvik 1983a, b;Tabachek 1984Tabachek ,1986Yang & Dick 19921, there is a general lack of information on its protein requirements. Consequently, commercially raised Arctic charr are usually fed diets formulated for other salmonids, primarily Atlantic salmon, Salmo salar L., and rainbow trout, Oncorhynchus mykiss (Walbaum).…”

mentioning

confidence: 99%

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Optimal protein requirements of young Arctic charr (Salvelinus alpinus) fed practical diets

Gurure

Moccia

Atkinson

1995

Aquaculture Nutrition

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Young Arctic charr, Salvelinus alpinus (L.), mean weight 2.56 ± 0.02 g, were fed nine isoenergetic (˜16.6 MJ digestible energy (DE) kg−1) practical diets formulated to supply digestible crude protein (DCP) at 40g kg−1 increments from 230 to 550g kg−1, for 84 days. Mean weight gain (MWG) and specific growth rate (SGR) were determined every 14 days while carcass composition was determined at the start and end of the experiment. Growth responses attained the highest values in the fish fed the diet with 350 g kg−1 DCP. Carcass moisture gain, protein gain and apparent net lipid accumulation increased as DCP levels increased to a maximum at 350 g kg−1 after which there were no differences among treatments. Total carcass lipid and lipid gain decreased as dietary DCP increased up to 470 g kg−1 with no differences thereafter. Apparent net protein accretion decreased with increasing DCP levels up to 350 g kg−1 after which there were few differences among treaments. Protein requirements were estimated by fitting MWG and SGR data to broken line regression, quadratic and saturation kinetics models. Results from these analyses suggest that dietary DCP should be provided at between 340 and 392 g kg−1 (equivalent to ˜370 and 420g kg−1 crude protein) for optimal growth of young Arctic charr reared in similar conditions.

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Influence of dietary protein and lipid levels on growth, body composition and utilization efficiencies of Arctic charr, Salvelinus alpinus L.

Cited by 36 publications

References 13 publications

Dietary Protein Requirements of Juvenile Black Sea Bass, Centropristis striata

Dietary Protein Requirements of Juvenile Black Sea Bass, Centropristis striata

Nutrient utilization and growth of Clarias gariepinus fed four different commercial feeds

Optimal protein requirements of young Arctic charr (Salvelinus alpinus) fed practical diets

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