Advances in Animal and Veterinary Sciences

Research Article
Adv. Anim. Vet. Sci. 9(12): 2216-2220
Http://dx.doi.org/10.17582/journal.aavs/2021/9.12.2216.2220
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Lajan Ahmed

Salahaddin University-Erbil, College of Agricultural Engineering Sciences, Iraq.

Abstract | The current study was aimed to estimate the repeatability of egg weight and egg number characteristics of varieties (desert, brown and white) of local quail at 5, 7, 9, 11 and 13 weeks and overall age of the quail. For this reason, 60 birds (15 males and 45 females) were selected from each variety. The egg numbers and egg weight were summarized on weekly basis for five weeks. The total number of eggs collected for each age was 30 and 150 for the total number of each variety at five different age periods. The results showed that the repeatability estimates for the number of eggs per week was ranged 0.084-0.88 on the desert variety. The repeatability estimates for egg numbers for the five weeks taken together were totally the same among varieties. The repeatability estimates for egg weight at 5 and 13 weeks were generally low in the three varieties of quail and ranged 0.075-0.91. The overall repeatability estimate of egg weight traits highest in desert varieties (0.087) with the least estimate obtained of white varieties (0.081). The results of this study general increase in weight and number of eggs repeatability with different production periods reveals that the less the number records are required to satisfactorily characterize the inherent producing ability for the traits as laying age progressed of each local quail varieties.

Keywords | Repeatability, Egg production, Age, Lines, Local quail