The aim of this research was to investigate the growth performance of hi-sex layers. A total of twelve hundred (1200), day old hi-sex white leghorn layers were randomly divided into two housing systems (floor and cage) with three replicates. The layers were managed and reared on the standard principles. The findings of this study showed that housing system has no effect on the feed intake during pre-molt period. The average live body weight has no housing effect on 8th, 16th and 24th week while the weight significantly (P<0.05) increased on 32th, 40th, 48th, 56th, 62nd and 70th week in cage housing system. The egg production was significantly higher on 24th, 32nd, 48th, 56th, and 64thweek at floor housing system than cage housing system. The egg mass and shell thickness were significantly higher in floor housing system, whereas shell weight and albumin weight were observed significantly higher in cage housing system.The average mean of carcass weight, dressing percentage, liver, heart, spleen, gizzard, and intestine length were insignificant in floor and cage housing system at pre-molting stage, while live weight was significantly higher in floor housing system and dressing percentage was higher in cage housing system. Hence it was concluded that hi-sex hen on floor housing system showed better production performance than cage system. Housing system has no effect on feed consumption, egg quality and organ weight.
Key words: Hi-sex, housing systems, production, egg size, egg quality.
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