Lecithin requirements of juvenile Australian red claw crayfish <i>Cherax quadricarinatus</i>

Thompson, Kenneth R.; Muzinic, Laura A.; Christian, T.D.; Webster, Carl D.; Manomaitis, Lukas; Rouse, David B.

doi:10.1046/j.1365-2095.2003.00246.x

Cited by 40 publications

(40 citation statements)

References 17 publications

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“…All diets used lipidextracted fish meal as the primary protein source at a fixed rate of 30% of the total formulation (Table 1). The fish meal was solvent extracted with ethyl alcohol (ETOH; 95%) in six consecutive baths: baths 1-4 at 2:1 ETOH : fish meal, bath 5 at 3:1, and bath 6 at 4:1 (Thompson et al 2003). Each diet was supplemented with 5% added lipid from different sources.…”

Section: Methodsmentioning

confidence: 99%

Effects of Different Types of Dietary Lipids on Growth and Fatty Acid Composition of Largemouth Bass

2007

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Abstract.-The effects of feeding diets supplemented with oils of varying sources and fatty acid compositions on growth, survival, and biochemical composition of juvenile largemouth bass Micropterus salmoides were evaluated under controlled conditions in aquaria for 12 weeks. Feed-trained juvenile largemouth bass (15.7 6 0.6 g) were stocked into eighteen 114-L glass aquaria at 25 fish/tank and were fed one of five experimental diets (3 replicate aquaria/diet). All diets were formulated to be approximately isocaloric (4,200 kcal gross energy per kilogram) and isonitrogenous (40% crude protein), containing protein primarily from solvent-extracted fish meal and soybean meal. Each diet was supplemented with 5% oil (by weight) using lipids from various sources and with different fatty acid compositions. These included fish oil, corn oil, sunflower oil (high oleic), linseed oil, and a fungal oil (high arachidonic acid). Fish were fed twice daily to apparent satiation. At the end of the study period, there were no significant differences (P . 0.05) between treatment groups in terms of survival (98%), weight gain (595%), specific growth rate (2.2% per day), feed conversion ratio (1.5), percent protein deposited (28%), or hepatosomatic index (2.3). Whole-body proximate composition was not significantly affected (P . 0.05) by source of added lipid, but whole-body fatty acid composition showed large differences and primarily reflected the fatty acid compositions of added oils. Largemouth bass may be able to use diets containing vegetable-and animal-source lipids, which are less expensive than the previously recommended fish oil.

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Section: Methodsmentioning

confidence: 99%

Effects of Different Types of Dietary Lipids on Growth and Fatty Acid Composition of Largemouth Bass

2007

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“…While there have been recent studies on replacing FM with other, less expensive plant protein sources for juvenile red claw (Thompson et al . 2003a,b, 2005b, 2006; Muzinic et al .…”

Section: Introductionmentioning

confidence: 99%

Growth response and fatty acid composition of juvenile red claw crayfish (Cherax quadricarinatus) fed different sources of dietary lipid

Thompson

Bailey

Metts

et al. 2010

Aquaculture Nutrition

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A study was conducted to determine the effects of different sources of dietary lipid that differ in fatty acid (FA) composition on growth, feed conversion ratio (FCR), survival, and whole‐body proximate and FA composition of juvenile red claw. Juvenile red claw (0.55 ± 0.02 g) were reared over a 12‐week period. Five practical diets were supplemented with 70 g kg−1 oil (by weight) from either linseed oil (LO), canola oil (CAO), corn oil (CO), beef tallow (BT) or menhaden oil (MO) and formulated to contain 400 g kg−1 crude protein. Red claw were fed three times daily (800, 1200 and 1600) to controlled excess. At the conclusion of the experimental period, there were no significant differences (P > 0.05) found in percentage survival and FCR among dietary treatments and values averaged 85.4% and 3.4, respectively. However, final mean weight and specific growth rate of red claw fed Diet 1 (LO) was significantly higher (16.44 g and 3.95% day−1, respectively) compared with that of red claw fed Diet 4 (BT; 12.24 g and 3.43% day−1, respectively), but not different from red claw fed the other three diets. Likewise, red claw fed Diets 1 (LO) and 2 (CAO) had significantly higher percentage weight gain (2990 and 2880%, respectively) compared with the BT diet (2124%), but not different from red claw fed Diets 3 (CO) and 5 (MO). Whole‐body fat and ash composition was significantly affected (P < 0.05) by source of added lipid, but no differences were found in whole‐body moisture and protein. Moreover, whole‐body FA composition showed differences among the varying oil sources and primarily reflected the FA in the diets. Results of the present study indicate that plant oils LO, CAO and CO rich in linolenic acid (18:3n‐3), linoleic acid (18:2n‐6) and oleic acid (18:1n‐9) perform as well as MO containing high levels of n‐3 highly unsaturated fatty acids eicosapentanoic acid (20:5n‐3) and docosahexaenoic acid (22:6n‐3) for juvenile red claw crayfish grown indoors lacking natural food items. Further, red claw fed a diet containing BT, which has a high percentage of saturated FA, performed poorly compared with LO and CO in regards to weight gain. It appears that juvenile red claw can be fed diets containing less expensive plant‐based oils with high levels of 18‐carbon unsaturated fatty acids. This could reduce diet costs for producers and allow for profitability.

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“…2003a), little information is available on the nutrient requirement and practical diet formulation for redclaw (Cortés‐Jacinto et al. 2003a; Thompson et al. 2003).…”

Section: Introductionmentioning

confidence: 99%

Effect of different dietary protein and lipid levels on growth and survival of juvenile Australian redclaw crayfish, Cherax quadricarinatus (von Martens)

Cortés‐Jacinto¹,

Villarreal²,

Cruz‐Suárez

et al. 2005

Aquac Nutrition

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This study determined the effect of different dietary protein and lipid levels on growth and survival of juvenile redclaw Cherax quadricarinatus. Nine practical test diets were formulated to contain three crude protein (CP) levels [260, 310 and 360 g kg−1, equivalent to 225, 260 and 296 g kg−1 digestible protein (DP) respectively] at three crude lipid (CL) levels (40, 80 and 120 g kg−1, equivalent to 38, 67 and 103 digestible lipids respectively), with digestible protein : digestible energy (DP : DE) ranging from 14.6 to 22.6 mg protein kJ g−1. Three replicate groups of 15 crayfish (initial weight mean ± SD, 0.71 ± 0.13 g) per diet treatment were stocked in 40 L tanks, at 28 °C for 60 days. The highest mean weight, specific growth rate and biomass, with values of 7.0 g, 3.67% day−1, and 370.2 g m−2, respectively, were achieved by feeding a diet with P : L = 310 : 80 (P < 0.05). The treatments resulted in a survival rate of 80–91%, feed conversion ratio of 1.08–1.61 and protein efficiency ratio of 2.24–3.08. Results indicated that a diet containing 270 g kg−1 DP (equivalent to 320 g kg−1 CP), 75 g kg−1 digestible lipid (DL) with a DP/DE of 18.4 mg protein kJ−1, and 0.031 g protein per animal per day was optimum for juvenile C. quadricarinatus under the tested experimental conditions.

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Lecithin requirements of juvenile Australian red claw crayfish Cherax quadricarinatus

Cited by 40 publications

References 17 publications

Effects of Different Types of Dietary Lipids on Growth and Fatty Acid Composition of Largemouth Bass

Effects of Different Types of Dietary Lipids on Growth and Fatty Acid Composition of Largemouth Bass

Growth response and fatty acid composition of juvenile red claw crayfish (Cherax quadricarinatus) fed different sources of dietary lipid

Effect of different dietary protein and lipid levels on growth and survival of juvenile Australian redclaw crayfish, Cherax quadricarinatus (von Martens)

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