Effects of metabolizable energy level and guanidinoacetic acid supplementation of plant-based diet on the performance and carcass quality of broiler chickens

Date

6-2016

Degree

Bachelor of Science in Agriculture

Major Course

Major in Animal Science

College

College of Veterinary Medicine (CVM)

Adviser/Committee Chair

Christine B. Adiova

Abstract

A 35-day feeding trial was conducted to determine the effects of Metabolizable energy (ME) level and Guanidinoacetic Acid (GAA) supplementation on growth performance and carcass quality of broiler chickens. A total of 480 straight-run day-old chicks were randomly distributed into six treatments with eight replicates per treatment. The three levels of ME used were industry ME level, industry ME level less 75 kcal/kg, and industry ME level less 150 kcal/kg. The levels of GAA used were 0% and 0.03%. No significant interaction was observed between ME level and GAA supplementation on body weight,body weight gain, drip loss, breast meat and breast meat lean of broiler chickens. Significant interaction between ME level and GAA supplementation was observed on feed consumption at day 7 ? 14 and 14 ? 21 and on feed conversion efficiency at day 7 ? 14.No main effect of GAA supplementation was observed on all parameters except on abdominal fat percentage. Main effects of ME levels were observed on body weight, body weight gain, and feed conversion efficiency of broiler chickens. Body weight and body weight gain of broiler chickens at day 21, 28, and 35 fed diet with industry ME level less 150 kcal were significantly lower compared to the body weight and weight gain of broilers fed diets with industry ME level. In general, when ME level of feed was reduced by 150 kcal/kg, lower body weight gain of chickens and less efficient feed conversion were observed.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2016 A3 /D44

Document Type

Thesis

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