Biological Evaluation Of Two Commercial Feeds In Sex-Separated Rearing System On KUB-2 Chicken Performance

Abstract

This study aimed to evaluate the biological performance of KUB-2 chickens reared under a sex-separated system and fed two different commercial diets. A 2 × 2 factorial randomized block design was employed using 120 one-day-old chicks consisting of 60 males and 60 females. The treatments were arranged based on sex and feed type, namely Charoen Pokphand and Malindo commercial feeds. Observed parameters included final body weight, weekly body weight gain, feed intake, feed conversion ratio (FCR), and mortality. Data were analyzed using Two-Way ANOVA. The results revealed that sex significantly affected all performance parameters (p < 0.05), with male chickens showing superior growth performance and feed efficiency compared to females. Feed type had no significant effect on the measured variables (p > 0.05). Furthermore, no significant interaction between sex and feed type was detected, indicating that the effect of sex on performance was consistent across both feed types. The best biological performance was observed in male chickens fed the Malindo diet, which also showed the lowest mortality rate. These findings highlight the importance of sex-separated rearing systems in improving the productivity of KUB-2 chickens and suggest that both commercial feed types can be used effectively in production systems.