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Farelo de algodão como substituto ao farelo de soja, em rações para tilápia do Nilo

Authors: Kleemann, Geisa Karine;

Farelo de algodão como substituto ao farelo de soja, em rações para tilápia do Nilo

Abstract

Farelos de algodão classificados comercialmente com 28%, 38% e 46% de proteína bruta, foram avaliados para determinar seu valor nutricional para a tilápia do Nilo. Os coeficientes de digestibilidade aparente (CDA) foram determinados usando ração purificada contendo 0,1% de óxido de crômio III e as rações teste contiveram 60% da ração purificada e 40% dos farelos. A maioria dos CDA dos nutrientes dos farelos de algodão foram diferentes (P<0,05). Os CDA dos farelos de algodão variaram respectivamente, para matéria seca, de 53,45 a 54,32%; proteína bruta, 71,56 - 74,81%; energia, 53,80 - 58,60%; extrato etéreo, 85,37 - 89,11%; fósforo, 33,75 - 34,50%; cálcio, 41,21 - 43,75%; ferro, 62,02 - 79,85%; zinco, 0,00 - 67,41%; cobre, 13,37 - 14,27%; aminoácidos essenciais, 71,39 - 79,17%; e aminoácidos não-essenciais, 77,08 - 82,58%. Estes dados fornecem informações nutricionais dos farelos de algodão possibilitando seu melhor aproveitamento nas formulações de rações para tilápia.

Cottonseed meals commercially classified with 28%, 38% and 46% of protein, were evaluated to determine its nutritional composition. Apparent digestibility coefficients (ADC) were determined using a purified diet containing 0.1% of chromic oxide, and test diets contained 60% of purified diet and 40% of test ingredients. ADC of most nutrients in cottonseed meals were different (P<0.05). The ADC of the cottonseed meals were: dry matter, 53.45 - 54.32%; protein, 71.56 - 74.81%; energy, 53.80 - 58.60%; ether extract, 85.37 - 89.11%; phosphorus, 33.75 - 34.50%; calcium, 41.21 - 43.75%; iron, 62.02 - 79.85%; zinc, 0,00 - 67.41%; copper, 13.37 - 14.27%; essential amino acids, 71.39 - 79.17%; and non-essential amino acids, 77.08 - 82.58%. These data provide information concerning available nutrients of cottonseed meals and will allow to make full use of cottonseed meals in Nile tilapia practical diet formulations, maximazing the economic benefit of least-cost feed formulation.

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Universidade Estadual Paulista (UNESP)

Pós-graduação em Zootecnia - FMVZ

Country
Brazil
Keywords

Minerals, Peixe - Histologia, Energy, Fish, Peixe - Alimentação e rações, Protein, Nutrição animal, Amino acids, Tilapia (Peixe), Farelo de caroço de algodão como ração

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green