Protein requirement for Trichogaster lalius, blue variety
| Autor: | Jener Alexandre Sampaio Zuanon, Ana Lúcia Salaro, Márcio Yoshiyuki Kanashiro, Marcelo Duarte Pontes, Lidiane da Silva Nascimento, Antonio Policarpo Souza Carneiro, Donizete Aparecido da Silva |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Specific growth
growth performance Protein efficiency ratio biology Growth performance Trichogaster Dwarf gourami ornamental fish dwarf gourami Protein requirement biology.organism_classification Feed conversion ratio Condition factor Dietary protein Animal science Biochemistry nutrient requirements Nutrient requirements medicine Animal Science and Zoology lcsh:Animal culture Ornamental fish medicine.symptom Weight gain lcsh:SF1-1100 |
| Zdroj: | LOCUS Repositório Institucional da UFV Universidade Federal de Viçosa (UFV) instacron:UFV Revista Brasileira de Zootecnia, Volume: 42, Issue: 2, Pages: 144-147, Published: FEB 2013 Revista Brasileira de Zootecnia, Vol 42, Iss 2, Pp 144-147 (2013) Revista Brasileira de Zootecnia v.42 n.2 2013 Revista Brasileira de Zootecnia Sociedade Brasileira de Zootecnia (SBZ) instacron:SBZ |
| Popis: | The objective of the present study was to evaluate the protein requirement of juvenile Trichogaster lalius, blue variety. The experimental design was of randomised blocks (B1 = initial weight of 1.04±0.05 g and B2 = 1.36±0.02 g), with two replicates within each block and five treatments (230, 270, 310, 350 and 390 g CP/kg diet). The fish were fed to satiation, three times a day for 90 days. The study evaluated: survival rate, weight gain, final length, feed intake, feed conversion ratio, protein efficiency ratio, specific growth rate and condition factor. There was a linear effect of dietary protein levels for protein efficiency ratio, specific growth rate (positive linear effect) and feed conversion ratio (negative linear effect). For weight gain, final length, feed intake and condition factor a quadratic effect of dietary protein levels was observed, with estimated values of 409.8, 366.2, 317.4 and 365.0 g CP/kg diet, to improve their performance parameters. Analysis of growth based on the length of the fish shows that 366.2 g of CP/kg diet meets the protein requirement of juvenile Trichogaster lalius, blue variety. |
| Databáze: | OpenAIRE |
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