人工孵化的美洲鸵鸟（美洲鸵鸟属）蛋的微生物污染

Microbial contamination of artificially incubated Greater Rhea (Rhea americana) eggs.

作者信息

Lábaque M C, Navarro J L, Martella M B

机构信息

Centro de Zoologia Aplicada, Córdoba, Argentina.

出版信息

Br Poult Sci. 2003 Jul;44(3):355-8. doi: 10.1080/00071660310005198319.

DOI:10.1080/00071660310005198319

Abstract

This paper is a report of biological agents that contaminate Greater Rhea (Rhea americana) eggs during artificial incubation. 2. The cleanliness of eggs when collected, and the period of storage prior to incubation, were investigated to assess their effects on microbial contamination and hatchability. 3. A total of 14 bacteria and 4 fungi species were isolated within the egg in the laboratory. 4. Microbial contamination was higher (24%) in very dirty eggs than in eggs which were clean or dirty (16%). Hatching success was lower (30%) for very dirty eggs, compared with 42% for clean or dirty eggs. 5. The percentage of microbial contamination of stored eggs (10%) did not differ significantly from that of non-stored ones (5%). 6. The extreme lower and upper limits of infection rate estimated for artificially incubated Greater Rhea eggs were 4% and 40%, respectively, being higher than in poultry species. 7. It is concluded that collecting eggs soon after laying will reduce the risk of microbial contamination.

摘要

本文报告了人工孵化期间污染美洲鸵鸟（Rhea americana）蛋的生物因子。2. 研究了收集时蛋的清洁度以及孵化前的储存期，以评估它们对微生物污染和孵化率的影响。3. 在实验室中，从蛋内共分离出14种细菌和4种真菌。4. 非常脏的蛋的微生物污染率（24%）高于清洁或脏污的蛋（16%）。非常脏的蛋的孵化成功率较低（30%），而清洁或脏污的蛋为42%。5. 储存蛋的微生物污染率（10%）与未储存蛋的微生物污染率（5%）相比，差异不显著。6. 人工孵化的美洲鸵鸟蛋估计的感染率下限和上限分别为4%和40%，高于家禽品种。7. 得出的结论是，产卵后尽快收集蛋将降低微生物污染的风险。