Growth performance and carcass evaluation of three locally available strains of broilers at three marketing ages

Date

5-2014

Degree

Bachelor of Science in Agriculture

Major Course

Major in Animal Science

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Clarita T. Dagaas

Abstract

The experiment determined the effect of strain (Cobb, Hubbard and Indian River) and slaughter age (28d, 35d and 42d) on the growth performance and carcass quality of the three commercial broiler strains. A total of 300 day-old chicks, 100 chicks per strain, were randomly distributed based on a completely randomized design (CRD) following a 3x3 factorial arrangement to three treatments with ten replications. Strain C (Indian River) had the best growth performance since it had the highest live body weight, gain in weight and feed consumption among the three strains. While Strain A (Cobb) had the best carcass quality because it had the highest breast yield and meat:bone ratio of the breast part. Though Strain C had the best growth performance, it had the highest mortality rate and lowest harvest recovery. There was an effect of strain and slaughter age on the abdominal fat content of the broilers Strains A and C both have high abdominal fat content which increased as the birds aged, and Strain B (Hubbard) had the lowest abdominal fat content which decreased as the birds got older. Overall feed efficiency, dressing percentage, cooking shrinkage and meat:bone ratio of the thigh-drumstick part were not affected by the age and slaughter age of the commercial broilers. Based on the results of the study, it is highly recommended to slaughter the commercial broilers at the age of 35 days.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2014 A3 /R48

Notes

status: in process

loc: Cataloging Section

Document Type

Thesis

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