author(s)
Premavalli K, Richard churchil R and Omprakash AV

abstract
A study was conducted to find out optimum egg weight for better hatching performance of Aseel birds. Aseel hatching eggs were divided into four egg weight classes (41 – 43 (T1-Small), 44 – 46 (T2-Medium), 47 – 49 (T3-Medium) and 50 – 52g (T4-Large)) and set for hatching in six consecutive batches. The medium size egg had significantly (P0.01) higher per cent fertility. The per cent total hatchability was significantly (P0.01) higher for medium and large sized eggs. The egg weight classes 47 – 49g and 50 – 52g had significantly (P0.01) higher per cent fertile hatchability and lesser per cent total embryonic mortality. It can be concluded that significantly higher per cent fertility, total hatchability, fertile hatchability and lesser per cent total embryonic mortality was observed from large and medium eggs. Hence, selection of hatching eggs weighing between 44 - 52 g is best suitable for obtaining better hatching performance of Aseel birds.