Effect of posthatch feed and water access time on residual yolk and broiler live performance

ÖZLÜ S., UÇAR A., Romanini C. E. B., Banwell R., Elibol O.

POULTRY SCIENCE, vol.99, no.12, pp.6737-6744, 2020 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 99 Issue: 12
  • Publication Date: 2020
  • Doi Number: 10.1016/j.psj.2020.09.036
  • Journal Name: POULTRY SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Agricultural & Environmental Science Database, BIOSIS, CAB Abstracts, EMBASE, Food Science & Technology Abstracts, Index Islamicus, MEDLINE, Veterinary Science Database
  • Page Numbers: pp.6737-6744
  • Keywords: feed access time, yolk sac, BW, feed consumption, mortality, HOLDING TIME, GROWTH-PERFORMANCE, DELAYED PLACEMENT, CHICK QUALITY, HATCHING TIME, BREEDER AGE, EGG WEIGHT, HATCHABILITY, DEPRIVATION, PARAMETERS
  • Ankara University Affiliated: Yes

Abstract

This study investigated the effect of feed and water access time on yolk sac utilization and subsequent broiler live performance. Hatching eggs were collected from commercial flocks of Ross 308 breeders at 35 and 39 wk of age in experiments 1 and 2, respectively. Chicks already out of their shells that still had some dampness on their down were removed, recorded, feather-sexed, and weighed at 488 h of incubation in both experiments. Chicks were weighed individually and received feed and water at 2 (immediate feed; IF), 8, 12, 16, 20, 24, 28, and 32 h after hatching (488 h) in experiments 1 and 2 (IF) and at 24, 26, 28, 32, 36, and 40 h after hatching in experiment 2.