Abstract

This experiment was conducted at the University of Sulaymaniyah's poultry farm, Animal Science Department, College of Agricultural Engineering Sciences. This study is a component of my master's thesis. The experiment began on October 10, until November 13 of 2024, and the chicks were raised for 35 days. This study used 160 unsexed one old broiler chicks of the Ross 308 . the chicks divided to treatments by use completely randomized design in a 2 × 2 factorial was used two feed forms (pellet and crumble) and two feed quality in starter period (normal starter and super-starter) diet ،after starter period use same feed for grower (11-20) and finisher period (21-35) in all treatments. In starter period the interaction between pellet and super starter had significant (p<0.05) difference between treatments in weight gain, FCR, body weight and intestinal jejunal villi length. Consequently, in grower and finisher period, Within the same feed type, no significant differences (P > 0.05) were observed in body weight gain between crumble and pellet forms. Pellet super-starter achieved the highest value (3400.66 ± 352.69. Pellet starter had the best early-phase feed efficiency (FCR) (1.13 ± 0.05), while crumble super-starter had the highest late-phase FCR (2.05 ± 0.28). Super-starter feeds outperform traditional starter meals in broiler development, influencing growth more than physical shape, indicating superiority for optimal poultry production (P < 0.05). observed the higher significant difference (P < 0.05) in body weight, body weight gain, FCR and intestinal villi length and width had constantly appeared in treatments offered super- starter whether it was using pellet and crumble. this research it’s a part of my master thesis.