Effect of diet complexity and phase feeding in early broiler chick diets on growth performance, fecal quality, caloric efficiency and diet economics

Date

6-2016

Degree

Bachelor of Science in Agriculture

Major Course

Major in Animal Science

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Rommel C. Sulabo

Abstract

A total of 320 straight-run day old Cobb 500 chicks were used to determine the effect of diet complexity and phase feeding in early broiler chick diets on growth performance, excreta quality, caloric efficiency and diet economics. Birds were distributed to 1 of 4 experimental treatments following a randomized complete block design. Treatments were a corn-soy diet fed from d 0 to 10 (Treatment 1), corn-soy diet with 1.5% spray dried blood cells (SDBC) fed from d 0 to 10 (Treatment 2), corn-soy diet with 2.5% enzyme-treated soybean meal (ESBM Treatment 3) and corn-soy diet with 5% ESBM fed from d 0 to 5 and a corn-soy diet with 2.5% ESBM fed from d 6 to 10 (Treatment 4). All treatments were replicated eight times with 10 birds per replicate. From d 0 to 5, birds fed the diet with SDBC had improved (P < 0.04) F/G and caloric efficiency compared with those fed the corn-soy diet, with birds fed the diet with 2.5 and 5% ESBM being intermediate. From d 0 to 10, increasing the diet complexity or phase feeding did not affect growth performance, caloric efficiency, excreta quality, and economic return. Overall (d 0 to 35), no differences in growth performance and economic return were also observed among the treatments. In conclusion, increasing diet complexity of the booster diet through the use of spray-dried blood cells or enzyme-treated soybean meal had no effect on growth performance, caloric efficiency and excreta quality of broilers. Likewise, the use of phase feeding in the booster stage may not be necessary since the same effect was obtained when broilers were fed diets that were not phase-fed.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2016 A3 /B37

Document Type

Thesis

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