. Care of hatching eggs before incubation. Eggs; Eggs; Oeufs; Oeufs; Oeufs. relative humidity exceeds 58, 71, or 83%, respectively. Eggs do not sweat when they are prewarmed and kept enclosed until they have warmed up to environ- mental temperature. Relative humidity The rate of evaporation of water from eggs, and consequent weight loss, is greatly influenced by the relative humidity, temperature, and movement of the air or gas that surrounds them. Plastic enclosures probably prevent eggs from drying out too much because they limit the volume of air or gas around the eggs and eliminate air mov
. Care of hatching eggs before incubation. Eggs; Eggs; Oeufs; Oeufs; Oeufs. relative humidity exceeds 58, 71, or 83%, respectively. Eggs do not sweat when they are prewarmed and kept enclosed until they have warmed up to environ- mental temperature. Relative humidity The rate of evaporation of water from eggs, and consequent weight loss, is greatly influenced by the relative humidity, temperature, and movement of the air or gas that surrounds them. Plastic enclosures probably prevent eggs from drying out too much because they limit the volume of air or gas around the eggs and eliminate air movement. High relative humidity during preincubation storage is needed for optimum hatchability. Investigators found that high relative humidity, at 80-88 %, gave better hatchability than did relative humidities of 58-62% or 34-38%. Another worker compared relative humidity levels of 75-82% and 80-90%, but could not detect any significant differences in hatchability. A humidifier that can main- tain such levels is illustrated in Fig. 2. Controlled atmosphere storage As early as 1738, it was reported that dipping eggs in melted mutton fat prolonged the storage life of hatching eggs; the fat was removed with warm water. Fig. 2. An automatic humidifier used to maintain relative humidity at adequate levels in an egg storage Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Proudfoot, F. G. , 1921-; Hamilton, R. M. G; Canada. Agriculture Canada. Ottawa : Agriculture Canada
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Keywords: ., bookcentury1900, bookcollection, bookleafnumber5, booksubjecteggs
