Effect of breed, egg size and shape on fertility, late embryonic mortality and hatchability.
Effect of breed, egg size and shape on fertility, late embryonic mortality and hatchability.
复制标题
品种、蛋的大小和形状对生育力、晚期胚胎死亡率和孵化率的影响。
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
Kripal Singh
中科院分区：
文献类型：
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作者：
M. Ahmad;Balvir Singh;S. Chauhan;Kripal Singh
In an experiment conducted on various breeds of chicken, it was found that light breeds had higher fertility, better hatchability and less than half embryonic mortality as compared to heavy breeds. Medium sized eggs (50–60 gm) had higher fertility (85%), better hatchability (81.82%) and lower late embryonic mortality (18.82%) than either too small «50 gm) or too large (>60 gm) sized eggs. Fertility, late embryonic mortality and hatchability were significantly affected by breed, size and Shape of eggs. Cylindrical eggs had higher fertility and late embryonic mortality with lower hatchability (FES%) in comparison to oval and roundish eggs. Highly positive correlation exists between egg weight and hatching weight of chicks. Breed and egg size had significant effect on hatching weight.
