Effects of humic acid-based feed additive on performance of broiler chickens

Date

5-2017

Degree

Bachelor of Science in Agriculture

Major Course

Major in Animal Science

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Christine B. Adiova

Committee Member

Elpidio M. Agbisit Jr. Enrico P. Supangco

Abstract

A 35-day feeding trial was conducted to determine the effects of different inclusion levels of humic acid-based feed addictive on the performance of broiler chickens. A total of 180 day-old chicks were randomly allocated to three treatments following completely randomized design. There were six replicates per treatment and ten birds per replicate pen. Dietary treatments were : 1-basal diet treatment 2-basal diet with 0.5% humic acid-based feed additive and treatment 3-basal diet with 1% humic acid-based feed addictive. Body weight gain, feed consumption, feed efficiency, mortality rate, dressing percentage, villi height, crypt depth, villi height to crypt depth ratio, ash recovery, calcium and phosphorus percentage form tibia ash analysis were measured. The results of the experiment did not show any significant differences on body weight gain, feel consumption, feed conversion ratio, and dressing percentage of broilers. However, higher mortality rate was observed in broilers fed control diet than in treatments with the feed additive. Significantly higher villi height and villi height to crypt depth ratio was observed in birds fed diet with 1% additive compared to other treatments. Percent ash recovery, calcium and phosphorus content of tibia were not affected by the supplementation of humic acid-based feed additive.

Language

English

Location

UPLB College of Veterinary Medicine (CVM)

Call Number

LG 993.5 2017 A3 S73

Document Type

Thesis

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