Labaque M C, Navarro J L, Martella M B
Centro de Zoología Aplicada, Córdoba, Argentina.
Br Poult Sci. 2004 Oct;45(5):638-42. doi: 10.1080/00071660400006222.
(1) A study was conducted to determine the effects of the length of the storage period on the hatchability of artificially incubated Greater Rhea eggs. Hatchability was evaluated in eggs gathered daily from a captive population and in eggs collected less frequently from a semi-captive population. (2) Eggs form both sites were either immediately incubated after being collected or were stored for 1 to 9 d prior to incubation. (3) The maximum number of days for which an egg could be stored without depressing hatchability (with respect to non-stored eggs) was longer in the eggs collected daily. (4) Eggs collected daily and stored for 4d or more showed total hatchability (28%) and fertile hatchability (43%) which was approximately 30% lower than non-stored eggs or eggs stored for 3 d or less. In the semi-captive population, the total and fertile hatchability of non-stored eggs and of eggs stored for one day were 40% greater than of eggs stored for 2 to 9 d (20 and 34%, respectively). (5) The period for which Greater Rhea eggs could be stored without depressing hatchability varied depending on the frequency of egg collection: non-daily egg collection reduces the possible period of storage.
(1) 开展了一项研究，以确定储存期长短对人工孵化的美洲鸵鸟蛋孵化率的影响。对从圈养种群中每日收集的蛋以及从半圈养种群中较少频率收集的蛋的孵化率进行了评估。(2) 来自这两个地点的蛋在收集后要么立即孵化，要么在孵化前储存1至9天。(3) 每日收集的蛋在不降低孵化率（相对于未储存的蛋）的情况下能够储存的最长天数更长。(4) 每日收集并储存4天或更长时间的蛋的总孵化率（28%）和可育孵化率（43%）比未储存的蛋或储存3天或更短时间的蛋低约30%。在半圈养种群中，未储存的蛋和储存一天的蛋的总孵化率和可育孵化率比储存2至9天的蛋（分别为20%和34%）高40%。(5) 美洲鸵鸟蛋在不降低孵化率的情况下能够储存的时间因收集蛋的频率而异：非每日收集蛋会缩短可能的储存期。
