The study investigated the effect of pre-slaughter rest time (0,3,6,9 h)on meat quality of cherry valley ducks at 38 days of age, such as muscle glycogen,lactic acid, ATP, ADP,AMP, IMP, and hexokinase, pyruvate kinase, creatine kinase lactate dehydrogenase, and analyzed the correlation among the parameters. The results were as follows: the Pre-slaughter rest time could significantly affect duck breast muscle; Pre-slaughter rest could significantly increase the lactic acid content (P〈0.05);The pyruvate kinase activity of the REST groups we...