Data/hora: 10/06/2024 04:05:49

Provedor de dados: | 89
País: | Brazil
Título: | Duckweed in Irrigation Water as a Replacement of Soybean Meal in the Laying Hens’ Diet
Autores: | Zakaria,HA; Shammout,MW.
Data: | 2018-09-01
Ano: | 2018
Palavras-chave: | Lemna Gibba; Water quality; Alternative protein source; Egg production; Yolk pigmentation.
Resumo: | ABSTRACT Water lentils (Duckweed [DW])(Lemna gibba), in irrigation ponds, was evaluated by replacing two levels of soybean meal (SBM) on performance and egg quality of laying hens of 54 weeks of age. A total of 72 white Lohmann laying hens were randomly allocated into 3 treatments with 6 replicates/treatment, 4 hens/replicate in a randomized complete block design. Treatments were: control group (DW0%) with (SBM) as the main source of protein, T1 (DW10%) and T2 (DW20%), where duckweed replaced 10% and 20% of SBM for 9 weeks. No significant differences were observed among the dietary treatments in body weight change, feed conversion ratio, egg weight and mortality rate. Replacement with (DW20%) decreased (p&lt;0.05) feed intake, egg laying rate and egg mass. The dry albuminin (DW10%) decreased (p&lt;0.05) from 7 to 9 weeks and in the total period. Yolk pigmentation was highly (p&lt;0.001) improved by the replacement. Blood spots were increased (p&lt;0.05) with (DW20%). Duckweed grown in good quality irrigation water can replace up to 10% of the SBM as a source of protein without adverse effects on hen performance and egg quality in addition to profitability.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000300573
Editor: | Fundação APINCO de Ciência e Tecnologia Avícolas
Relação: | 10.1590/1806-9061-2018-0737
Formato: | text/html
Fonte: | Brazilian Journal of Poultry Science  v.20 n.3 2018
Fonte: | info:eu-repo/semantics/openAccess