L. IoniŢĂ

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STUDY ON THE INFLUENCE OF STORAGE DURATION OF EGGS UNDER CONDITIONS OF HIGH TEMPERATURE ON QUAIL POPULATION "BALOTEŞTI" PERFORMANCE OF HATCHING

L. Ioniţă, Elena Popescu-Micloşanu, D. Oprea, M.Tr. Ioniţă

Abstract
To determine the incubation performance and to establish measures to improve them in quail eggs of the "Baloteşti" population stored for 1 to 6 days under high temperature, an experiment was organized on 6 batches of 150 eggs. Eggs were kept at a temperature of 250C and humidity of 60%. Following the investigations it was found that weight loss of eggs during storage varied from 6.52% in eggs stored for 6 days and 0.45% in those stored for 1 day. The average percentage of weight loss during eggs incubation of the 6 groups was of 12.79% and the average percentage of hatching of 52.5%. Highest proportion of hatching occurred in eggs stored for 2 days (62%) and lowest in eggs stored for 5 days (44%). Prolonged preservation increases the proportion of clear eggs due to embryonic mortality, from 14.7% in eggs stored 2 days at 23.3% in those stored 5 days. Eggs stored over a period of 3-6 days, begin to hatch later, in the 16th day of incubation, probably due to its prolongation. The ones stored 1-2 days hatch earlier, staring with day 15. Following the investigation it can be stated that the recommended storage period to achieve high performance of hatching is of 2-3 days.

Key words: quail, incubation, eggs, storage, duration