Estudo de caso: inoculação de própolis em ovos férteis de galinha

Abstract

The objective of this study was to evaluate the influence of the inoculation of propolis extract applied to fertile chicken eggs on hatchability, observing physical characteristics such as: activity, down, eyes, navel, remaining membrane, abdomen, legs, Shins. The experiment was conducted in the biological control laboratory where the incubator is located and at the UTFPR Campus Dois Vizinhos Poultry Education and Research Unit. Were used 235 chicken eggs (Cobb 500 strain) were used in a randomized complete block design (DBC) divided into 8 blocks with different levels of egg weight and divided into 5 treatments per block. The treatments were control (treatment 1), (PBS) + 0.1% of propolis extract without alcohol (treatment 2), saline solution (PBS) + 0.3% of propolis extract without alcohol (treatment 3), ( PBS) + 0.5% of propolis extract without alcohol (treatment 4) and (PBS) + 0.7% of propolis extract without alcohol (treatment 5). On the 18th day of incubation the inoculation of the propolis extract was carried out on the eggs and the eggs were transferred to the trays of birth for the hatching of the chicks. The incubator was monitored daily to verify the temperature, humidity and turning of the eggs. Descriptive statistics were used to interpret the data, since the unexpected events that occurred during the development of the experiment made it impossible to apply the randomized block design (DBC). The losses obtained were very large in some treatments.