Samawal Sadi Abdullah Al-Tikriti*(1)
(1) Dept. of animal production, Faculty of Agriculture, University of Tikrit, Iraq
(*Corresponding author: Dr.Samawal Al- Tikriti, Email: Samawal_1976@yahoo.com).
Received: 19/11/2021 Accepted: 18/01/2022
Abstract:
This study was carried in poultry farm of animal production department – Faculty of agriculture, Tikrit University for the period from 22/10/2018 to 1/6/2019.The aim of the study was carried out to evaluate the genetic parameters of some egg production traits in the brown local quail (30 males and 90 females) feathers and selected at the age of four weeks depending on the body weight. The packed cell volume (PCV ), packed red blood cells , white blood cells and the concentration of hemoglobin were 42.12% , 2.78 million cells / mm3 , 25.90 103 cells / ml and 12.76 g / 100 ml, respectively. The characteristics of egg production was the rate of egg weight and average number of eggs produced percent during the first days of the beginning of the development of the first egg and the rate of egg mass 12.21 grams and 73.07 egg and 892.18 grams, respectively. The results showed that all of the volume of packed blood cells and the number of red blood cells and the concentration of hemoglobin correlated phenotypic and genetically negative and highly significant with egg production quantity studied while the phenotypic correlation and genetic between the number of white blood cells with the characteristics of egg production is positive. We conclude that the possibility of improving the qualities of egg production depending on the characteristics of some blood with (packed cell volume and red blood cell count and concentration of hemoglobin) because of the genetic and phenotypic correlations high significant and heritability medium and high for traits blood.
Keywords: quail, phonotypic and genetic correlation, egg weight, egg number, blood.
Full paper in Arabic: pdf