González-Redondo Pedro, Robustillo Pascual, Caravaca Francisco P
Departamento de Agronomía, Universidad de Sevilla, Carretera de Utrera km 1, 41013 Seville, Spain.
Animals (Basel). 2023 Jul 3;13(13):2184. doi: 10.3390/ani13132184.
The long-term storage of eggs before incubation is a common practice in some alternative poultry systems but needs to be performed under conditions that preserve egg viability. The effects of the long-term storage of game farmed quail () eggs on weight loss during the storage and incubation periods, chick weight at hatch, hatchability, and incubation length were investigated. The eggs were arranged in six treatments submitted to 0-, 7-, 14-, 21-, 28-, and 35-day storage periods at 15.8 °C and 80% relative humidity. The storage length reduced the hatchability of eggs ( < 0.05) when the storage was extended to 35 days, decreasing by more than half compared to eggs stored up to 28 days. Egg weight loss during storage progressively increased with the storage length ( < 0.05). Chick weight at hatching was reduced in eggs stored for more than 14 days ( < 0.05), and relative chick weight decreased significantly in eggs stored for 35 days ( < 0.05). Incubation length progressively increased with the storage length ( < 0.05), achieving less hatching synchrony in eggs stored for a longer time ( < 0.05). In conclusion, game quail eggs store well with little deterioration up to 28 days at 15.8 °C and 80% relative humidity, allowing for extended storage when shipping long-shelf-life eggs or assembling batches large enough to fully set an incubator in farms with small breeding flocks.
在某些替代家禽养殖系统中,孵化前对种蛋进行长期储存是一种常见做法,但需要在能保持种蛋活力的条件下进行。本研究调查了养殖猎用鹌鹑蛋长期储存对储存期和孵化期失重、雏鸡出雏体重、孵化率及孵化时长的影响。将种蛋分为六组处理,分别在15.8℃、相对湿度80%的条件下储存0天、7天、14天、21天、28天和35天。当储存期延长至35天时,种蛋孵化率降低(P<0.05),与储存28天的种蛋相比,孵化率下降超过一半。储存期间种蛋失重随储存时长逐渐增加(P<0.05)。储存超过14天的种蛋出雏体重降低(P<0.05),储存35天的种蛋雏鸡相对体重显著下降(P<0.05)。孵化时长随储存时长逐渐增加(P<0.05),储存时间较长的种蛋孵化同步性较差(P<0.05)。总之,在15.8℃、相对湿度80%的条件下,猎用鹌鹑种蛋在长达28天的储存期内保存良好,变质较少。这使得在运输长保质期种蛋或在小型繁殖鸡群的农场中组装足够数量的种蛋以装满孵化器时,能够进行延长储存。