The white Leghorn layer spent hens (80-100 weeks old) were obtained from poultry farm of Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana and slaughtered as per standard procedure in the experimental slaughterhouse of Department of Livestock Products Technology, GADVASU, Ludhiana, Punjab. The dressed layer carcasses were chilled at 4±1ºC for 18 hrs. and then after deboning manually, these were packed in low density polyethylene (LDPE) bags and stored in deep freezer at -18±1°C for subsequent use