PREDICTION OF GENETIC RESPONSE AT DIFFERENT RANGES OF SELECTION INTENSITY IN SAANEN GOATS BRED IN IRAQ
Keywords:
selection, Governorate, Kurdistan Region of IraqAbstract
The study was conducted at the private Rasan Agricultural Station for the breeding of Saanen goats in Shahid Halabja Governorate, located east of Sulaymaniyah Governorate in the Kurdistan Region of Iraq. The research included 265 records belonging to 74 does from the station records for the seasons 2021 and 2022, as the station was established in 2020 by importing 500 heads of the Saanen goats from the Netherlands, with the aim of estimating the direct and correlated genetic gain at different ranges of selection intensity (70 and 50%) depending on Phenotypic values of total milk yield and pre-weaning average daily gain and economic value resulting from them. The percentage of direct genetic gain for total milk yield was 3.79 and 5.83% and for the pre-weaning average daily gain 3.44 and 5.44% and for the economic value calculated from them 0.41 and 1.18% at the selection rate of 70 and 50%, respectively, the study showed that the lower the percentage of selected individuals, the greater the intensity of selection and the greater the selection differential, and thus the direct and correlated genetic gain of does increase
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