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Body composition, growth performance and enzyme activities of Labeo rohita fed different commercial fish feeds
- Source :
- Brazilian Journal of Biology v.83 2023, Brazilian Journal of Biology, Instituto Internacional de Ecologia (IIE), instacron:IIE, Brazilian Journal of Biology, Volume: 83, Article number: e250402, Published: 01 OCT 2021, Brazilian Journal of Biology, Vol 83 (2021)
- Publication Year :
- 2023
- Publisher :
- FapUNIFESP (SciELO), 2023.
-
Abstract
- We have evaluated the effects of different fish feeds on the body composition, growth, and enzyme activities of Labeo rohita (Rohu). In total, 240 fishes between the average weights of 24.77±2.15g were studied. The treatments were applied in a completely randomized design, with 4 treatments of 60 fishes each. Treatments consisted of four different fish feeds [Oryza (T1), AMG (T2), Aqua (T3), and Supreme (T4)]. Body composition, growth performance, and enzyme activities were evaluated. There was a significant variation in performance of fishes fed with different type of feed; as fishes having Oryza feed showed the highest weight gain, specific growth rate (SGR), and best feed conversion ratio (FCR) as compared to other groups that were considered to be significant (P ≤ 0.05). High net weight gain was obtained in T4 when compared with T2 and T3. FCR value of T4 was less than T1 but higher than T2, T3 and T2, which showed the lowest values. The specific growth rate was recorded as average in T4, but T2 led a high SGR than T3. Similarly, crude protein level and digestive enzymes activity was recorded significantly highest in fed with Oryza (T1) as compared to AMG (T2), Aqua (T3), and Supreme (T4). Water quality parameters were recorded significant in all treatments except pH and DO of treatment (T1), significantly different from other treatments. It was concluded that Rohu (Labeo rohita) could show a promising growth rate and protease enzyme activity when fed with the Oryza feed of 25% protein. Resumo Avaliamos os efeitos de diferentes alimentos para peixes em relação à composição corporal, crescimento e atividades enzimáticas de Labeo rohita (Rohu). No total, foram estudados 240 peixes com pesos médios de 24,77 ± 2,15 g. Os tratamentos foram aplicados em delineamento inteiramente casualizado, com quatro tratamentos de 60 peixes cada. Os tratamentos consistiram em quatro alimentos diferentes para peixes: Oryza (T1), AMG (T2), Aqua (T3) e Supreme (T4). Foram avaliados a composição corporal, o desempenho de crescimento e as atividades enzimáticas. Houve uma variação significativa no desempenho dos peixes alimentados com diferentes tipos de ração. Peixes com alimentação Oryza apresentaram maior ganho de peso, taxa de crescimento específico (SGR) e melhor taxa de conversão alimentar (FCR) em comparação com outros grupos que foram considerados significativos (P ≤ 0,05). Elevado ganho de peso líquido foi obtido em T4 quando comparado com T2 e T3. O valor da FCR de T4 foi menor que T1, mas maior que T2 e T3, que apresentaram os menores valores. A taxa de crescimento específico foi registrada como média em T4, mas T2 teve uma SGR alta do que T3. Da mesma forma, o nível de proteína bruta e a atividade das enzimas digestivas foram registrados significativamente mais altos nos peixes alimentados com Oryza (T1) em comparação com AMG (T2), Aqua (T3) e Supreme (T4). Os parâmetros de qualidade da água foram registrados como significativos em todos os tratamentos, exceto pH e OD do tratamento (T1), significativamente diferente dos demais tratamentos. Concluiu-se que Rohu (Labeo rohita) pode apresentar uma taxa de crescimento promissora e atividade da enzima protease quando alimentado com Oryza de 25% de proteína.
- Subjects :
- QH301-705.5
Science
growth
Rohu
Oryza
Feed conversion ratio
Animal science
alimentos para peixes comerciais
medicine
Animals
Growth rate
Biology (General)
Completely randomized design
body composition
biology
Botany
Fishes
atividade enzimática
biology.organism_classification
crescimento
Enzyme assay
enzyme activity
Labeo
QL1-991
QK1-989
Body Composition
biology.protein
composição do corpo
Composition (visual arts)
medicine.symptom
commercial fish feeds
General Agricultural and Biological Sciences
Zoology
Weight gain
Subjects
Details
- ISSN :
- 16784375 and 15196984
- Volume :
- 83
- Database :
- OpenAIRE
- Journal :
- Brazilian Journal of Biology
- Accession number :
- edsair.doi.dedup.....af0a5ab9e35f016b8fbf1eaf13cf530a
- Full Text :
- https://doi.org/10.1590/1519-6984.250402