Background and Aim: The exchange of oxygen carbon dioxide (CO2) in the incubator plays a key role embryonic development hatching. This study aimed to effect non-ventilated (NV) intervals during early stage on hatching process. Materials Methods: Hatching eggs (n = 7200) were equally divided into four treatment groups incubated incubators. first group was normal ventilated condition (V) setting ...

zataria multiflora essential oil, hydrogen peroxide(h2o2) and malachite green (mg) were used to assess their effects on rainbow trout egg hatchability and survival of larvae up to 1-1.2 g body weight using spring water at 12.5 °c, dissovled oxygen 8-9 mg/l, carbon dioxide 7±2 mg/l, ammunia

The purpose of the present study was to evaluate the impact of vitamin E and selenium (Se) supplementation on the performance, egg quality and hatchability of eggs from Japanese breeding quails. The experiment was conducted over a 60 day period using 135 quails in a completely randomized design (CRD) with two levels of vitamin E and two levels of selenium (80 mg/kg of vitamin E+0.2 mg/kg organi...

The effects of electric field (EF) during incubation of eggs on hatchability traits, and post-hatch performance, nutrient utilization and carcass characteristics of meat chickens were investigated in 2 trials. Eggs from a meat-type breeder flock were incubated under EF of 30kV/m, 60Hz during the first 18 d of incubation as compared with the control incubation treatment (C). Chicks hatched from ...

Abstract Niedenzuella (Tetrapterys) multiglandulosa, a vine plant found in Brazil, has been correlated to outbreaks of poisoning cattle and buffaloes, generating economic losses related the death due heart failure, miscarriage, abortion, stillbirth, neonatal mortality. The aim this study was examine embryotoxic potential aqueous extract on vitro bovine embryos. In performed five replicates embr...

The objective of the experiment was to define if in ovo injection of acetylsalicylic acid (ASA) during the final stage of embryogenesis has an effect on morphotic parameters and heart work of chicken embryos subjected to hyperthermia. Eggs (n=420) from a broiler breeder flock were incubated under standard conditions. On the 18 d of incubation, they were injected with 5 mg of ASA/50 μl of 0.9% N...