EFFECTS OF SOLAR DRIER SUPPLEMENTED WITH LANTERN OR ELECTRIC BULB HEAT ON JAPANESE QUAIL EGGS HATCHABILITY
DOI :
https://doi.org/10.51791/njap.vi.4089Mots-clés :
Embryo growth, incubator, Japanese quails, physiological statusRésumé
Artificial incubation in Japanese quails commercial production is unavoidable because the hens do not incubate their eggs. But artificial incubators require electricity, expertise and are not readily accessible hence alternative strategies that seem affordable and easy become indispensable. Two separate studies: electric incubator and solar drier supplemented with lantern heat; electric incubator and solar drier supplemented with electric bulb heat were carried out using two hundred Japanese quail eggs. Incubation period, number of hatchlings, chick weight, fertility rate, hatchability and chick yield were determined. Thermometer was used in monitoring the incubation temperature and relative humidity. Hatchability failure was recorded in both solar drier supplemented with lantern and electric bulb heat but 74.3%; 85.7% was recorded in control. All the incubated eggs in both solar drier supplemented with lantern and electric bulb appeared unfertile. These observations could be due largely to irregular incubation temperature of 30.3 to 58.8 0C; 23.9 to 42.60C during the day and 21.3 to 36.50C; 27.1 to 38.7Oc during the night in solar drier supplemented with either lantern or electric bulb heat. Therefore, solar drier supplemented with lantem or electric bulb heat, may not provide the required microclimatic conditions required to sustain Japanese quail embryos development.