EVALUATION OF EGG QUALITY TRAITS OF SHIKABROWN® PARENTS

A. Ahmadu, M. Kabir, A. O. Iyiola-Tunji, B. I. Nwagu, W. Buba, M. Y. Babale

Abstract


This study was carried out in order to measure the internal and external egg quality traits of Shikabrown®. The eggs were obtained from a population of selected lines (sire and dam) and were denoted as strain A and strain B, respectively. (indicate the methodologies used in obtaining the responses you are reporting!) Egg quality traits were similar for most of the internal and external quality parameters and the differences between the strains were not significant (P>0.05). However, strain affected (P<0.05) egg length. Strain B had longer egg length (5.61±0.06 cm) than Strain A (5.44±0.04 cm). The positive and high phenotypic correlations between egg weight and most internal and external egg measurements in Shikabrown® indicated that egg weight is directly proportional to the increase of other egg quality traits (egg length, egg width, shell thickness, shell weight, albumen weight, albumen height, albumen width, yolk weight, yolk index). This implies that any of the traits can be used as selection index for the improvement of egg weight. Egg weight of Strain B (50.00±1.14 g) was significantly (P>0.05) superior to strain A (48.60±0.93). Average egg length (5.61±0.06mm) and average egg width (4.04±0.03mm) in strain B were strongly and positively correlated with egg weight in Shikabrown®. In conclusion, selection for egg length and egg width will improve egg weight. Based on these traits, strain B should be employed as selection criteria to improve egg weight of Shikabrown®. The improvement of strain B is recommended based on the higher (126.80) percentage of the total variance than strain A 103.10%.


Keywords


Egg quality traits, PCA, Strains, internal egg quality traits and external egg quality traits.

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