<![CDATA[This study aims to analyze quality control in layer chicken production using Statistical Quality Control (SQC) and the Fishbone Diagram approach at one of CV Layer Farm’s partners in South Lampung. Primary data were collected through direct observation, interviews, and environmental measurements, while secondary data consisted of daily production records and feed consumption over an 11 week period. The results show an average Hen Day Production (HDP) of 90.91 %, with a Feed Conversion Ratio (FCR) of 2.22 and mortality rate of 1.2 %. However, House 3 ( 89,65 % ) did not reach the optimal standard of 92,7 %, with the lowest fluctuation occurring in week 27 (84.54%). Fishbone analysis identified root causes such as environmental factors (heat stress at 33°C), managerial issues (absence of written SOPs and reliance on manual recording), and limited monitoring facilities. Economically, the farm remains efficient with a positive R/C ratio, though improving HDP in House 3 could further enhance profitability. Recommended corrective actions include digitalizing recording systems, mitigating heat stress through housing modifications, and standardizing SOPs for farm management.This study highlights that applying SQC and Fishbone analysis is effective in detecting production variability and provides strategic recommendations to improve quality, efficiency, and sustainability in layer chicken farming.]]>
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