Production performance and carcass quality of broilers fed diet supplemented with different kinds of probiotics

Date

1-2015

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

Restrictions

Restricted: Not available to the general public and to those bound by the confidentiality agreement. Access is available only after consultation with author/thesis adviser.

Abstract

A study was conducted to compare which among the five commercially available probiotics are more efficient in improving broiler production vis á vis the use of AGP and/or no feed additive at all. A total of 630 straight run (Cobb) day-old chicks were used in the experiment. The birds were distributed to 7 treatments following a completely randomized design (CRD) with 10 replicates per treatment and 9 birds per replicate per pen. The dietary treatments are as follows: Treatment 1: Basal diet (without probiotics and Antibiotic Growth Promotant (AGP) Treatment 2: Basal diet + (CTC and Zn Bacitracin) Treatment 3: Basal diet + Probiotic A (Bacillus subtilis sp.) Treatment 4: Basal diet + Probiotic B (Bacillus subtilis sp.) Treatment 5:Basal diet + Probiotic C (Enterococcus faecium sp.) Treatment 6: Basal diet + Probiotic D (Bacillus subtilis sp.)and Treatment 7: Basal diet + Probiotic E (Enterococcus faecium sp., Birido bacterium sp., Pediococcus sp., and Lactobacillus sp.). Results showed that dietary supplementation of probiotics had no significant effect on the overall body weight and weight gain, feed consumption, feed efficiency, dressing percentage, mortality, harvest recovery and carcass quality parameters (meat to bone ratio, abdominal fat content, etc.) measured. Birds in Treatment 7 (Basal feed + Probiotic E) gave the highest income over feed and chick cost.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2015 A3 M37

Document Type

Thesis

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