The effects of varying dietary protein level on the growth, food conversion, protein utilization and body composition of juvenile tilapias (Sarotherodon mossambicus)

Jauncey, K.

doi:10.1016/0044-8486(82)90108-9

Cited by 430 publications

(326 citation statements)

References 22 publications

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“…Khan et al (1993) reported the same effect in Asian red tail catfish. The inverse relationship between body moisture and lipid is consistent with other reports, regardless of fish species (e.g., Jauncey 1982, Ng et al 2001 Values are means ± SD; values within a row having different superscript letters are significantly different at P < 0.05.…”

Section: Resultssupporting

confidence: 78%

“…Although there were significant differences among diets in whole-body ash and carbohydrate contents, there was no clear relationship to dietary protein level. (Jauncey 1982), channel catfish (Lovell 1973), African catfish (Degani et al 1989), pike perch, Sander lucioperca, (see: Schulz et al (2007), and Mexican silverside (Martínez-Palacios et al 2007). The high values observed (2.60-5.70) may be a result of the cheap, locally available feed ingredients used for practical diet formulation; high FCR values have been reported for a number of fish species fed on practical diets using locally available feed ingredients (Khan et al 1993) The effects of dietary protein level on PER differ among species (Dabrowski 1979, Martínez-Palacios et al 2007).…”

Section: Resultsmentioning

confidence: 99%

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Growth, Nutrient Utilization and Body Composition of Juvenile Bagrid Catfish, <I>Chrysichthys Nigrodigitatus</I> (Actinopterygii: Siluriformes: Claroteidae), Fed Different Dietary Crude Protein Levels

Adewolu

Benfey²

2009

Acta Icth et Piscat

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Section: Resultssupporting

confidence: 78%

Section: Resultsmentioning

confidence: 99%

Growth, Nutrient Utilization and Body Composition of Juvenile Bagrid Catfish, <I>Chrysichthys Nigrodigitatus</I> (Actinopterygii: Siluriformes: Claroteidae), Fed Different Dietary Crude Protein Levels

Adewolu

Benfey²

2009

Acta Icth et Piscat

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“…The same tendencies have been reported for common carp (Ogino & Saito, 1970;Ogino et al, 1976;Takeuchi et al, 1979) and for tilapias (Mazid, 1979;Jauncey, 1982;De Silva et al, 1989;Shiau & Huang, 1989;Santiago & Laron, 1991).…”

Section: Discussionsupporting

confidence: 63%

Growth and feed utilization by F4human growth hormone transgenic carp fed diets with different protein levels

Fu¹

1998

Journal of Fish Biology

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The F 4 generation of human growth hormone (hGH) transgenic red common carp Cyprinus carpio had significantly higher growth rates than the non-transgenic controls. Protein and energy intakes were significantly higher in the transgenic carp than in the controls fed the 20% protein diet, but were not different between the two strains fed diets with 30 and 40% protein.Faecal protein loss, as a proportion of protein intake, was significantly lower in the transgenics than in the controls fed diets with 20 and 30% protein, but was not different between the two strains fed diet with 40% protein. Faecal energy loss, as a proportion of energy intake, was significantly lower in the transgenics than in the controls fed diet with 20% protein, but was not different between the two strains fed diets with 30 and 40% protein. Recovered protein, as a proportion of protein intake, was significantly higher in the transgenics than in the controls fed all diets, whereas recovered energy was significantly higher in the transgenic fish fed the 40% protein diet. For fish fed each diet, the transgenics had significantly higher body contents of dry matter and protein, but lower contents of lipid than the controls. It was concluded that transgenics were more efficient in utilizing dietary protein than the controls. At a lower dietary protein level, transgenics achieved higher growth rates mainly by increasing feed intake; at higher levels of dietary protein, transgenics achieved higher growth rates mainly through a higher energy conversion efficiency. 1998 The Fisheries Society of the British Isles

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“…Hemre et al 1995b) when fed high carbohydrate diets. Excessive carbohydrate intake may result in pathological conditions in fish (Jauncey 1982, Roberts 1989. Histological examination of fish fed high carbohydrate diets revealed hepatocyte hypertrophy in rainbow trout (Kaushik et al 1989) and Labeo rohita (cf.…”

Section: Introductionmentioning

confidence: 99%

Haematological and hepatic changes in Catla catla fingerlings in relation to dietary sources and levels of gelatinized carbohydrate

Yengkokpam¹,

Sahu²,

Pal³

et al. 2005

Acta Ichthyol. Piscat.

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Background. Dietary carbohydrate use is a priority in aquaculture because of its low cost and high availability, especially for herbivorous and omnivorous fish. Gelatinization is a process that improves carbohydrate use. However, excess dietary carbohydrate may cause metabolic stress and cellular changes as fish inherently use low carbohydrate. The aim of this study was to determine the effects of three sources of gelatinized carbohydrate (GC) on haematology and hepatic structure of Catla catla fingerlings. Materials and methods. Six isocaloric (17.1-17.5 kJ · g -1 ) semi-purified diets were prepared from rice, corn, or tapioca, each at 40 or 50% GC. Crude protein (CP) level was fixed at 35 and 25% for the low GC (40%) and high GC (50%) levels, respectively. Ninety Catla catla fingerlings were distributed in 6 treatments, each with three replicates, for a 60-day feeding trial. At termination, blood haemoglobin, RBC, WBC, and liver histology were studied.Results. Significant differences (P < 0.01) in haemoglobin, RBC, and WBC were observed among the different carbohydrate-fed groups at 40% GC level. With increased dietary GC level, hepatocyte hypertrophy and vacuolation was intensified. Maximum hypertrophy was noticed in the fish fed tapioca at 50% GC, with extensive cytoplasmic vacuolation. No mortality was found in any group at any GC level. Conclusion.No mortality of Catla catla fingerlings was observed due to feeding of high GC levels from corn, rice, or tapioca. However, hepatocyte hypertrophy was observed. Long-term feeding beyond 60 days may cause adverse hepatic cellular changes, but needs further research.

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The effects of varying dietary protein level on the growth, food conversion, protein utilization and body composition of juvenile tilapias (Sarotherodon mossambicus)

Cited by 430 publications

References 22 publications

Growth, Nutrient Utilization and Body Composition of Juvenile Bagrid Catfish, <I>Chrysichthys Nigrodigitatus</I> (Actinopterygii: Siluriformes: Claroteidae), Fed Different Dietary Crude Protein Levels

Growth, Nutrient Utilization and Body Composition of Juvenile Bagrid Catfish, <I>Chrysichthys Nigrodigitatus</I> (Actinopterygii: Siluriformes: Claroteidae), Fed Different Dietary Crude Protein Levels

Growth and feed utilization by F4human growth hormone transgenic carp fed diets with different protein levels

Haematological and hepatic changes in Catla catla fingerlings in relation to dietary sources and levels of gelatinized carbohydrate

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