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This research aimed to improve Hemşin sheep grown by local people in Artvin province between 2006 and 2010. Growth characteristics such as live weight and daily live weight gains of Hemşin lambs in the various periods were examined for this purpose. The effects of some environmental factors such as herd type, sex, birth type, age of dam, color and year on these factors were also examined. In the study, growth characteristics of lambs born from 6000 ewes and 300 dams were measured based on performance tests and a selection practice was performed. Elite, multiplyres elite and base herds were established. The heritabilities belonging to the properties in question were determined. The breeding value for daily live weight gains up to the end of grazing season in the fifth year was calculated. At the end of five years span of the research, to improve the growth characteristics of Hemşin sheep and to increase live weight gain to be obtained from each lamb were targeted. Except the daily live weight gain in the grazing period, all the other growth characteristics increased at the examined period. Heritabilities of the characteristics in the study is found as 0.213±0.114, 0.385±0.119, 0.411±0.144, 0.402±0.136, 0.418±0.143 ve 0.420±0.066, respectively. As a result, in terms of examined growth characteristics of Hemşin sheep measured by individual performance testing, it is determined that Hemşin sheep can be breed by local people to improve its growth traits.

Determination of Growth Traits and Heritabilities of Growth Characteristics of Hemşin Sheep Reared in Artvin