The Effects of Nano Zinc on Humoral Immunity, Blood Biochemical Indicators, Thyroid Hormones, and Carcass Characteristics of Broilers | ||||
| Egyptian Journal of Veterinary Sciences | ||||
| Articles in Press, Corrected Proof, Available Online from 05 December 2024 PDF (542.6 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejvs.2024.323489.2388 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Mamdouh Omar Abd-Elsamee1; Hany M.R. Elsherif2; Suzan M.E. Ezzelarab  2; Ahmed Samy3
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| 1Department of Animal and Poultry Production, Faculty of Agriculture, Cairo University,Egypt. | ||||
| 2Animal Production Department, Faculty of Agriculture, Cairo University, Giza, Egypt, | ||||
| 3Animal Production Department, Agricultural and Biology Research Institute, National Research Centre, Dokki, Cairo, Egypt. | ||||
| Abstract | ||||
| This study examined the effects of different concentrations of nano zinc oxide (ZnONPs) on the features of the carcass, weight of the bursa and thymus, kidney and liver functions, thyroid hormones, and humoral immunity in broilers that were reared from 1 to 35 days old. 360 male birds (arbor acres) one days old were comprised into six treatment groups. Each group consisted of six replicates. Six diets were designed to cover the nutritional needs of chicks, with the exception of zinc, which was given at three levels: 100% (of the strain guide recommended level), 50%, and 25% of traditional or nano zinc oxide was given. The results showed that the inclusion of ZnONPs significantly enhanced carcass weight in the source major effect when compared to the conventional source. Furthermore, the addition of ZnONPs at different levels resulted in the best carcass weight in the interaction (source x level). The percentages of the dressing, abdominal fat, bursa, thymus, and giblets (liver, gizzard, and heart) in the main source, levels, or interaction between treatments did not differ significantly. Additionally, birds fed diets containing ZnONPs showed enhanced immunity (humoral immunity). No significant differences between the different ZnONPs levels were detected. Thyroid hormone levels, kidney and liver functions did not significantly differ amongst the different treatments. According to the current findings, it could be concluded that adding ZnONPs had the best effects in terms of carcass weight and humoral immunity without having a negative effect on thyroid hormones, liver, or kidney function. | ||||
| Keywords | ||||
| Broiler; Zinc Oxide Nanoparticles; humoral immunity; thyroid hormones; blood biochemical parameters | ||||
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