HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Gutierrez, O. Articles by Bailey, C. A. Search for Related Content PubMed Articles by Gutierrez, O. Articles by Bailey, C. A.

Effect of Continuous Multiphase Feeding Schedules on Nitrogen Excretion and Broiler Performance

Department of Poultry Science, Texas A&M University, College Station 77843-2472

¹ Corresponding author: ogutierrez{at}tamu.edu

Two experiments were conducted simultaneously to evaluate the effects of continuous multiphase feeding programs on nitrogen excretion and broiler performance. Birds in both experiments were fed diets based on 1 of 3 unique feeding schedules. One feeding program consisted of an industry-type 4-phase schedule, whereas the remaining treatments consisted of diets that were blended and replaced every 3 d. One of these continuous multiphase feeding programs was based on industry average nutrient compositions, whereas the other feeding program was based on the EFG Broiler Growth Model. In experiment 1, 60 one-day-old male broiler chicks were randomly placed in 30 separate battery brooding pens with 3 unique feeding schedules (10 replicates per treatment). Nitrogen analyses were conducted on broiler excreta and ground, whole birds. Experiment 2 was conducted to evaluate the effects of continuous multiphase feeding programs on broiler performance in floor pens. A total of 540 one-day-old male broiler chicks were placed in 36 pens, yielding 12 replicates of 3 treatments. Continuous multiphase feeding schedules improved BW gain and the feed-to-gain ratio during wk 3 and 4 (experiment 1) and wk 5 and 6 (experiment 2). Nitrogen excretion and retention, however, were unaffected by the different feeding programs.

Key Words: continuous multiphase feeding • broiler • performance • nitrogen