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Articles by S.I. Daikwo
Total Records ( 2 ) for S.I. Daikwo
  S.I. Daikwo , N.I. Dim and M.O. Momoh
  A study to evaluate hatching characteristics of incubated Japanese quail eggs in Nigeria was conducted. A total of 1,116 eggs were incubated in 3 batches in a still-air kerosene incubator. The results showed that mean early and late embryonic mortality on the basis of fertile eggs were 18.59±1.85 and 9.89±1.31%, respectively. Mean fertility, hatchability of fertile eggs, hatchability of total eggs set and weight of newly hatched chicks were 85.41±1.25%, 71.52±1.94%, 61.31±1.93% and 6.47±0.10 g, respectively. Hatching chick weight was found positively and significantly (p<0.001) correlated with egg weight (r = 0.96), egg length (r = 0.79) and egg width (r = 0.74). Generally, there was negative correlation between embryo mortality (Early and Late) and external egg quality traits considered. It was concluded that the Japanese quails used in this study have high reproductive efficiency and the still-air kerosene incubator used is recommended for use in rural areas where electricity is irregular or not available to hatch quail eggs.
  S.I. Daikwo , N.I. Dim and O.M. Momoh
  A total of 471 eggs were collected from 205 female Japanese quails at 20 weeks of age in 3 consecutive days. The mixed model least-squares and maximum likelihood computer programme of Harvey (1990) was applied to estimate heritability, genetic and phenotypic correlations of egg quality traits. The heritabilities of egg weight, egg length, egg width, egg shape index, shell thickness, albumen width, albumen height, Haugh unit, yolk width and yolk height were 0.37±0.09, 0.15±0.03, 0.40±0.17, 0.46±0.03, 0.52±0.03, 0.23±0.02, 0.27±0.14, 0.30±0.08, 0.11±0.03 and 0.11±0.02, respectively. The genetic correlations among egg quality traits ranged from -0.13 to 0.97. The phenotypic correlation between egg weight and albumen width, albumen height, yolk width and yolk height were positive and significant (P<0.001). The results indicate a Haugh unit that can support embryo development and successful hatching. It also suggests that selection would be effective in improving some egg quality traits.
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