IMPACT OF SOME OF NATURAL FEED ADDITIVES ON SOME PRODUCTIVE PERFORMANCE, EGG QUALITY, FERTILITY, HATCHABILITY PARAMETERS AND ECONOMICAL EFFICIENCY OF LAYING HENS | ||
| Journal of Productivity and Development | ||
| Article 5, Volume 28, Issue 4, October 2023, Pages 263-285 PDF (885.25 K) | ||
| Document Type: Original Article | ||
| Authors | ||
| Bothina Ahmed1; Mostafa Tawfeek* 1; diaa aboukassem1; Ahmed Bealish2 | ||
| 1Animal & Poultry Production Department, Faculty of Technology & Development, Zagazig University, Zagazig, Egypt. | ||
| 2Animal Production Research Institute, Agriculture Research Centre, Ministry of Agriculture, Giza, Egypt. | ||
| Abstract | ||
| This study was conducted to investigate the effects of dietary zeolite and synbiotic supplementation on some egg production, egg quality traits, fertility and hatchability per total or fertile eggs of Mandarah hens (Egyptian local developed strain) during laying period. A total number of 270 laying hens + 27 cock, 24 weeks old were randomly taken to be similar in body weights (1381.30±1.27), which were randomly divided into nine experimental groups, (30 hens + 3 cocks in each). Each group was contained three replicates (10 hens+1 cock in each).The experimental groups designed as a factorial arrangement (3x3), 3 zeolite level groups (0, 1, 2 %); 3 levels symbiotic (0.0, 0.1, 0.2 %), respectively, during the experimental periods lasted six months from 24 to 48 weeks of age. The obtained results showed that supplementing laying hens with 2 % zeolite improved significantly (P≤0.01) in final body weight (FBW); body weight change (BWC, %); total egg number (TEN); and feed conversion ratio (FCR) as kg feed /eggs when compared to hens in receiving 1% zeolite and control group, during period 24 at 48 weeks of age. Addition of zeolite to laying hens’ diets at levels 2% improved significantly (P≤0.01) of yolk index, Haugh units, albumen index, fertility and hatchability per total or fertile eggs values as compared to the other groups. However, the effect of differences between zeolite levels show increase of net revenue (NR) and economic efficiency (EEF) percentage than the control group. Zeolite levels shows increase of net revenue (NR) and economic efficiency (EEF) percentage than the control group. The highest values 172.00 and 110.06 of (NR) and (EEF), respectively, in group 2 % zeolite supplementation. Concerning effect of 0.2% synbiotic supplementation in layer diets caused to increase significantly (P≤0.01) in FBW, BWC, TEN, FFCR (kg feed/ eggs) as compared to 0.1% supplementation with synbiotic and control group. Hens received synbiotic at level 2% could be improved (P≤0.01) significantly of yolk index, Haugh units, albumen index, fertility and hatchability per total or fertile eggs values when compared to other treatments groups. However, the effect of synbiotic levels supplementation showed the best of (NR) and (EEF) was recorded 168.93 and 107.94, respectively, when treated with 0.2% symbiotic. The interaction effects between zeolite and synbiotic supplementation were significant (P≤0.01) in FFCR (kg feed/ eggs), while the other traits at productive performance were not significant. Supplementation of 2 % zeolite and 2 % synbiotic caused to improve significantly (P≤0.01) in fertility and hatchability per total or fertile eggs values when compared to other treatments groups. The highest of (NR) recorded 174.76 in treatment supplementation of 2% zeolite and 0.2% symbiotic. The highest of (EEF) recorded 111.21 in group treated with 2% zeolite and 0.2 % symbiotic, Conclusively, it can be concluded that, supplemental layer diets with zeolite2 % or synbiotic at level 0.2% were more effective for improving significantly (P≤0.01) in yolk index, Haugh units, albumen index, shell weight (%), fertility and hatchability per total or fertile eggs values and recorded the highest (NR) and (EEF) when compared to other treatment groups of Mandarah laying hens. | ||
| Keywords | ||
| zeolite; synbiotic; productive performance; egg quality; fertility; hatchability parameters; economical efficiency; laying hens | ||
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