Using green Technology to generate Nanoparticles loaded with Papaya in order to improve the productive Performance of heat-stressed broiler Chickens

Abstract

This experiment was conducted on the farm of Al-Anwar Poultry Company in Babylon Governorate for 35 days from 28/11/2022 until  2/1/ 2023, 360 unsexed Ross-308 broiler chickens were used. The experimental groups included (0, 8, and 16 mg/kg feed of copper NPs (Nanoparticles), 8 and 16 mg/kg feed of copper NPs loaded on papaya plants, and 10 mg/kg feed of Papaya fed for groups (G1, G2, G3, G4, G5, and G6), respectively. All groups of the chicks were subjected to a consistent temperature of 34±1 cº for the whole duration of the trial. The study yielded the following results:   There was a significant improvement in the live body weight, packed cell volume (PCV), heterophile count, and heterophil-to-lymphocyte (H/L) ratio for groups G2, G3, G4, G5, and G6 compared to group  G1. Group G5 showed a significant increase in weight gain and hemoglobin levels. Additionally, groups G3 and G5 exhibited a significant increase in feed intake compared to group G1. Group G6 showed a significant improvement in feed conversion ratio compared to group G1 in the fifth week. Furthermore, groups G3, G4, and G5 showed a significant increase in red blood cell count compared to the other groups. Similarly, groups G2, G4, G5, and G6 showed a significant improvement in lymphocyte ratio. Nano-copper green synthesis can be regarded as a safe and promising nano-growth promoter in broilers when introduced to the diet at a dosage level of 8 and 16 mg/kg.