Hashim Hadi Al-Jebory(1)* , Elsagheer, M.A. (2) H.Q. Baqer (3) , Mohammed Khalil Ibrahim Al-Saeedi(4) , Israa L. Al-jeryan(1) and Fadhil Al-Khfaji(1)
(1). Department of animal production, agriculture college, Al-Qasim green university, Babylon, Iraq.
(2). Animal production department. Faculty of agriculture. Al-Azhar University, Assiut . Egypt
(3). Kerbala University, College of Agriculture, Kerbala province, Iraq
(4). Department of Environmental – College of Environmental Sciences- Al-Qasim Green University, Babylon, Iraq
(*Corresponding author, Dr. Hashim Al-Jebory- Email: hashimhadi@agre.uoqasim.edu.iq)
Received: 7/01/2023 Accepted: 27/02/2023
Abstract:
This study included two consecutive experiments, the first experiment was conducted in the hatchery of Al-Anwar company in Babylon province for the period from 30/7/2017 to 19/8/2017 in order to investigate the effect of injecting hatching eggs to broiler breeder with different levels of nano-silver, and then examining its subsequent effect on histology traits of the hatched chicks exposed to heat stress, as the experimental treatments were the treatment T1 without injection as a negative control, and the treatment T2 was an injection of 0.3 ml of Nacl solution as a positive control, and the treatments T3, T4, T5 and T6 were injections of hatching eggs with 12,14,16, and 18 ppm of a nano-silver solution, respectively. The hatched chicks from the above treatments were reared in the poultry farm of the Department of Animal Production at the College of Agriculture / Al-Qasim Green University for the period from 8/19/2017 to 9/22/2017, and were exposed to a periodic temperature. (28-32-28 m ⸰) and the results showed A high significant (P≤0.01) of T6 was detected in the length of the villi in the jejunum period and the treatments were higher T3, T4, in width of villi while all the injection treatment significantly higher in the depth crypts compared with treatment control.
Keyword: broiler, nano-silver, injection, histology.
Full paper in Arabic: pdf