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  • Title: Effects of black cumin seed (Nigella sativa L.) on performance and immune system in newly evolved crossbred laying hens.
    Author: Khan SH, Anjum MA, Parveen A, Khawaja T, Ashraf NM.
    Journal: Vet Q; 2013; 33(1):13-9. PubMed ID: 23594164.
    Abstract:
    BACKGROUND: A limited number of studies have tested the effect of diets supplemented with black cumin seed (BCS) on the performance of laying hen. OBJECTIVE: To determine the effects of various levels of dietary BCS on the performance of laying hen. BIRDS AND METHODS: Three hundred 40-week-old rural Leghorn (White Leghorn males X F1 females of Fayoumi male X Rhode Island Red female) crossbred hens were randomly assigned to four groups with five replicates of 15 birds each (75 laying hens per group), and fed diets supplemented with 0%, 3%, 4% or 5% BCS for 60 days. Statistical analysis was performed by means of ANOVA. RESULTS: BCS at all levels revealed greater egg production, egg weight and egg mass than the control group. Similarly, feed conversion was improved by 0.50, 0.55 and 0.36 points compared to controls with the addition of 3%, 4% or 5% levels of BCS, respectively. Haugh units and yolk weights of eggs from hens that were fed diets containing 3%, 4% and 5% BCS were significantly greater than those from the control group. Supplementation of 4% or 5% BCS significantly increased shell thickness and decreased serum LDL cholesterol and egg yolk cholesterol concentration as compared to other groups. Mean hemagglutination inhibition titers against Newcastle disease virus were higher than in controls. CONCLUSION: BCS at levels of 4% or 5% positively influenced egg production, egg weight and shell quality. Furthermore, it decreased the concentration of serum LDL cholesterol and egg yolk cholesterol concentrations and enhanced immunity against Newcastle disease virus.
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