Evaluation of Yellow Lupin <i>Lupinus luteus</i> Meal as an Alternative Protein Resource in Diets for Sea‐Cage Reared Rainbow Trout <i>Oncorhynchus mykiss</i>

Glencross, Brett; Curnow, John; Hawkins, Wayne; Felsing, M.

doi:10.1111/j.1749-7345.2002.tb00505.x

Cited by 19 publications

(10 citation statements)

References 18 publications

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“…Based on previously published literature and behavioral observations from the present study, palatability of treatment feeds may have been a factor. During the testing of diets and dietary constituents for various finfish species, a growth response (or lack thereof) is often attributed to palatability (e.g., red drum Sciaenops ocellatus: McGoogan and Gatlin 1997; rainbow trout Oncorhynchus mykiss: Glencross et al 2002;Thiessen and Tyler 2003). Observations from the present study indicated that bonytails fed the two shrimp diets (high and low protein) were more active feeders than fish offered the catfish and trout diets.…”

Section: Discussionmentioning

confidence: 57%

Performance of Endangered Bonytails Fed Four Commercial Diets

et al. 2006

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The bonytail Gila elegans is a critically endangered cyprinid that is endemic to the southwestern United States, where it is cultured in ponds and water reuse systems as part of recovery efforts. Unlike in extensive outdoor pond culture, where natural food productivity plays a primary nutritional role, manufactured feed must provide complete nourishment for fish reared indoors in recirculating systems. The objective of this study was to determine the effects of diet on the growth and survival of juvenile bonytails fed four commercially available feeds over a 120-d period. The four treatment diets were identified as a catfish diet, a trout diet, a high-protein shrimp diet, and a low-protein shrimp diet. Significant (P , 0.05) differences in growth among treatments were observed on sampling day 102. By day 120, the average weight of fish fed the high-protein shrimp diet (36.3 g) was significantly higher than the weights of fish fed the catfish (26.6 g), trout (24.7 g), and low-protein shrimp diets (24.2 g). The specific growth rates measured on days 102 and 120 were significantly greater for bonytails fed the high-protein shrimp diet than for fish fed the other treatments. The feed conversion ratio of fish fed the high-protein shrimp diet was significantly better than those of fish fed the trout and low-protein shrimp diets, while the protein efficiency ratio and apparent net protein retention were generally higher in the high-and low-protein shrimp diet treatment groups than in the other two treatment groups. Overall survival was high (93.5%) and did not differ significantly among treatment groups (P ! 0.05) through 120 d.

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Section: Discussionmentioning

confidence: 57%

Performance of Endangered Bonytails Fed Four Commercial Diets

et al. 2006

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“…1998) or k E = 0.68 in another study (Rodehutscord & Pfeffer 1999). This higher energy utilization efficiency difference is suggested to be a genetic effect, with faster growth noted previously being from the Pemberton strain of rainbow trout compared with other rainbow trout strains (Glencross et al. 2002; Molony et al.…”

Section: Discussionmentioning

confidence: 67%

Evaluation of the influence of Lupinus angustifolius kernel meal on dietary nutrient and energy utilization efficiency by rainbow trout (Oncorhynchus mykiss)

Glencross

Hawkins

Evans

et al. 2008

Aquaculture Nutrition

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This study examined the utilization efficiencies of three diets when fed to rainbow trout in a 28-day growth study. Each of the diets was fed at one of three ration levels, and an additional starved treatment was also included. The diets differed by an increasing concentration of lupin (Lupinus angustifolius cv. Myallie) kernel meal (MKM) inclusion. Two lupin kernel meal inclusion levels of 15% (MKM15%) and 30% (MKM30%) were studied. The diets were formulated to equivalent digestible protein and energy specifications based upon the predetermined digestibility values for each of the ingredients used. There were no significant differences in digestible protein level among the diets. However, a significantly higher level of digestible energy of both MKM diets was measured, as well as a significantly higher level of digestible phosphorus in the MKM30% diet. No significant differences between the diets were observed with respect the utilization of dietary digestible energy. Over the full data range, the energy utilization efficiency was described by the linear equation of; y = 0.747x ) 26.174, R 2 = 0.985. Efficiency of protein utilization over lower digestible protein intake levels was also linear (y = 0.599x ) 0.142, R 2 = 0.905), but over the full range was better described by a nonlinear function. The comparison of the three diets in this study shows that the dietary inclusion of lupin kernel had no significant effect on the gain of either protein or lipid energy relative to protein or lipid energy intake, respectively. Protein energy use efficiency constants varied depending on the feed intake level, but were not significantly affected by diet type. The efficiency of use of lipid energy for lipid energy retention was also not affected by diet type. The findings of this study demonstrate that the inclusion of lupin kernel meal, at up to 30% of the diet, does not affect the ability of rainbow trout to utilize the dietary digestible protein and energy of diet in which it is included. KEY WORDS

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“…2007) were suggested to be a possible genetic effect. Faster growth from the Pemberton strain of rainbow trout (Glencross et al. 2002; Molony et al.…”

Section: Discussionmentioning

confidence: 99%

Reduced water oxygen levels affect maximal feed intake, but not protein or energy utilization efficiency of rainbow trout (Oncorhynchus mykiss)

Glencross

2009

Aquaculture Nutrition

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This study examined the effect of reduced water oxygen levels on the utilization efficiencies of energy and protein from a diet fed to rainbow trout. An experimental diet was fed at one of the four ration levels with an additional starved treatment also included in each oxygenation regime. Oxygen levels in each oxygenation regime varied with ration level, but averaged 9.3 ± 0.36 mg L )1 for the normal regime and 5.7 ± 1.4 mg L )1 for the hypoxia regime. Significant differences were observed in the apparent satietal feed intake levels in each oxygenation regime, but not at any of the pair-fed restricted levels. No significant effects of oxygenation regime were observed on the utilization of either energy or protein by the fish. Efficiency of protein use varied depending on the protein intake level, but was not significantly affected by oxygenation regime. This study demonstrates that a reduction in the oxygen levels of the water does not affect the utilization efficiency of dietary digestible protein and energy in rainbow trout, but does result in a downregulation of feed intake when the fish is fed to apparent satietal levels. KEY WORDS

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Evaluation of Yellow Lupin Lupinus luteus Meal as an Alternative Protein Resource in Diets for Sea‐Cage Reared Rainbow Trout Oncorhynchus mykiss

Cited by 19 publications

References 18 publications

Performance of Endangered Bonytails Fed Four Commercial Diets

Performance of Endangered Bonytails Fed Four Commercial Diets

Evaluation of the influence of Lupinus angustifolius kernel meal on dietary nutrient and energy utilization efficiency by rainbow trout (Oncorhynchus mykiss)

Reduced water oxygen levels affect maximal feed intake, but not protein or energy utilization efficiency of rainbow trout (Oncorhynchus mykiss)

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