Growth performance of Persian sturgeon fry, Acipenser persicus, fed diet containing different protein and energy levels

Molla, Abbas Esmaeili; Amirkolaie, A. Keramat

doi:10.1111/j.1439-0426.2011.01683.x

Cited by 6 publications

(5 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, we observed in this study that the protein requirement of goldfish is greatly affected by the energy content of the diets, thus corroborating with several reports with different fish species (MCGOOGAN; GATLIN, 2000;SATOH et al, 2004;MOLLA and AMIRKOLAIE, 2011). Until we could reference, there is just two studies in the literature reporting the protein and energy requirement for Goldfish, however none have used different energy content.…”

Section: Resultssupporting

confidence: 80%

Protein to energy ratios in goldfish (Carassius auratus) diets

et al. 2013

View full text Add to dashboard Cite

The optimal dietary digestible protein to energy ratio is critical for the success of fish farming. Considering that it provides the proper development of the animals, this study was undertaken to evaluate the effects of different dietary digestible protein to energy ratio in diets for goldfish fingerlings. Diets were formulated to contain 28.0, 35.0, 42.0 and 49.0% DP and 3,600 and 3,200 kcal/ kg. The growth parameters evaluated were daily weight gain (DWG), feed intake (FI), feed conversion ratio (FCR), protein efficiency ratio (PER), protein productive value (PPV) and energy retention ratio (ERR) and specific growth rate (SGR). Regardless FI, all the parameters were affected by protein and energy levels and interaction between both factors was observed. The second-order polynomial equation best fitted to the DWG, SGR, FCR, PER and ERR with estimated requirement values of 38.81, 38.85, 41.05, 41.80 and 39.39% DP, respectively, at the 3,200 kcal/kg. A second-order polynomial model was significant only for the ERR data at the 3,600 kcal/kg with an estimated requirement value of 36.45% DP. Generally, fish fed diets containing 3,200 kcal/kg had better growth performance than fish fed 3,600 kcal/kg (P<0.01), indicating a higher feed efficiency. A 3,200 kcal/kg diet seems to be the proper DE level for meeting goldfish requirement for highest weight gain. Based on this experimental condition, we recommend the use of DP levels between 38.0-40.0% in diets for goldfish with 3,200 kcal/kg or a dietary protein to energy ratio between 119-125 mg/ kcal DE.Index terms: Energy requirement, feed intake, growth protein requirement, ornamental fish. RESUMOA ótima relação energia/proteína é importante para o sucesso da piscicultura. Considerando que a mesma fornece o adequado desenvolvimento dos animais, este estudo foi realizado para avaliar a relação energia/proteína digestível ótima para alevinos de kinguio. Dietas foram formuladas para conter 28,0; 35,0; 42,0 e 49,0% PD e 3600 e 3200 kcal/kg. Foram avaliados: ganho de peso diário (GPD), consumo de ração aparente (CRA), conversão alimentar aparente (CAA), taxa de eficiência protéica (TEP), valor produtivo protéico (VPP), taxa de retenção de energia (TRE) e taxa de crescimento especifico (TCE). Com exceção do CRA, todos os parâmetros foram afetados pelos níveis de proteína e energia e interação entre os dois fatores foram observados. O modelo que melhor se ajustou aos parâmetros GPD, TCE, CAA, TEP e TRE foi o polinomial de segunda ordem com valores de exigência de 38,81; 38,85; 41,05; 41,80 e 39,39% DP, respectivamente, para o nível de 3200 kcal ED/kg. O modelo polinomial de segunda ordem foi significativo apenas para os dados de TRE no nível de 3600 kcal ED/kg, com valor de exigência 36,45% PD. Os peixes alimentados com dietas contendo 3200 kcal/kg apresentaram melhor desempenho de crescimento do que os alimentados com 3600 kcal/kg (P<0,01), indicando uma maior eficiência alimentar. 3200 kcal/kg ED parece ser o nível adequado encontrado para kinguio para maior ganho d...

show abstract

Section: Resultssupporting

confidence: 80%

Protein to energy ratios in goldfish (Carassius auratus) diets

et al. 2013

View full text Add to dashboard Cite

show abstract

“…This large variability in protein requirements among the studied fishes is attributed to the differences in the ability to digest and metabolize alternative nutrients such as carbohydrates as long as a well‐balanced mixture of indispensable and dispensable amino acids is provided in the diet. The estimated protein requirements for omnivorous sturgeons, such as white sturgeon (Moore et al., 1988), Siberian sturgeon (Kaushik et al., 1991), Chinese sturgeons (Xiao et al., 1999), Persian sturgeon (Mohseni et al., 2007; Molla & Amirkolaie, 2011), and hybrid sturgeon ( A. baerii ♂ × A. gueldenstaedtii ♀; Guo et al., 2012) range from 37% to 45%. In this study, the protein level resulting in the best growth response and nutrient deposition was observed at the protein level of 46.8% and 49.2%, respectively.…”

Section: Discussionmentioning

confidence: 99%

Dietary protein requirement of fingerling sterlet sturgeon ( Acipenser ruthenus )

Lee¹,

Lim²,

Lee

2021

J Appl Ichthyol

View full text Add to dashboard Cite

Although sterlet sturgeon is a valuable candidate for aquaculture development, information regarding the nutrient requirements of this species is limited. Therefore, in this study, we aimed to determine the optimum protein level required by sterlet sturgeon fingerlings. Groups of fingerlings (mean initial body weight ± SD: 7.02 ± 0.02 g; N = 3) were assigned to one of the six dietary protein levels at 29.1%, 39.1%, 46.8%, 49.2%, 53.7%, and 57.6% on a dry matter basis. Isocaloric (18.3 ± 0.2 kJ GE/g diet) semi‐purified diets were prepared using white fish meal and casein as the major sources of protein. After the 8‐week feeding trial, the fingerlings fed the 49.2% protein diet exhibited the best results in terms of weight gain, feed efficiency, and whole‐body nutrient composition (crude protein, crude lipid, gross energy, and amino acid contents), whereas those fed the 53.7% and 57.6% protein diets showed poor performance. Application of the two‐slope straight broken‐line and quadratic models on the dataset of weight gain revealed the optimum protein level to be 45.9% and 44.1%, respectively. Based on the model selection criteria, including the adjusted coefficient of correlation and corrected Akaike information criterion, the protein level (44.1%) estimated using the quadratic model was more accurate than that obtained using another model (45.9%). Taken together, 44.1% protein level (18.3 kJ GE/g diet on dry matter basis) resulted in the optimal growth of the sterlet sturgeon fingerlings (initial body weight: approximately 7 g).

show abstract

“…() found similar protein requirement (range of 34%–37%) for juvenile hybrid sturgeon ( Acipenser baerii ♀ × A. gueldenstaedtii ♂). Earlier sturgeon studies showed dietary protein requirement of about 40% (Kaushik, Breque, & Blanc, ; Mohseni, Pourkazemi, Hosseni, Hassani, & Bai, ; Mohseni, Sajjadi, & Pourkazemi, ; Molla & Amirkolaie, ). The discrepancies among these values is probably because of differences in fish size, species, water temperature, dietary energy levels, protein quality, dietary non‐protein energy levels, or protein to energy ratio.…”

Section: Discussionmentioning

confidence: 99%