Effects of post-hatch feeding time and pre-starter feeds on growth performance and relative weight of visceral organs in slow-growing chickens

The objective of the experiment was to evaluate effects post-hatch feeding time and two different pre-starter diets on growth performance relative weight visceral organs yolk sac in slow-growing chickens. A total 480 one-day-old chicks (Luong Phuong breed) were randomly assigned into 4 treatment groups a completely randomized design 2 × factorial arrangement with 10 per pen. factors consisted (immediate access feed after hatching (0 h) delayed for 30 h hatching) pre-starters (Vi-start Commercial 1). Birds fed from 0 7 days age, then all birds same commercial 8 56 age. results showed that during - not hatch significantly lower body weight, average daily intake, gain efficiency (FE) than those immediately right (P < 0.05). In this period, Vi-start had better FE 1. Over 56-d study, there no main or chickens > However, interaction significant final BW at age = 0.01), suggesting within feed, increased as compared immediate hatch. brief, improved first week Feeding feeds would be beneficial.