The effect of varying levels of urease activity of soybean oil meal on the performance of broilers

Date

3-1987

Degree

Bachelor of Science in Agriculture

Major Course

Major in Animal Science

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Amelia L. Gerpacio

Abstract

A feeding experiment with six dietary treatments was undertaken to determine the effect of varying level of urease activity of soybean oil meals on the performance of broiler chicks.

Sixty (60) day-old (Lohman) commercial hybrid broiler chicks were distributed in individual cages and assigned to six dietary treatments which are formulated to contain the same levels of crude protein (isonitrogenous), metabolizable energy (isocaloric), amino acids (lysine, methionine plus cystine), vitamins and minerals, with urease activity of soybean oil meals as the only variable.

The treatment rations were fed to the broiler chicks ad libitum up to five weeks. An antibiotic was added to the water provided in order to avoid respiratory diseases, throughout the first week and every Saturday thereafter.

The general performance of broilers fed with higher urease activity of soybean oil meals, in terms of feed consumption, body weight and feed efficiency were similar to those broiler chicks offered the control diet (low urease activity). There were no significant differences observed among treatment means on these parameters at 5 percent level of probability.

Similarly, there were no significant differences observed on the dressing percentage and on weights of liver and pancreas of broilers fed soybean oil meals with varying levels of urease activity in the diets.

Based on the conditions and results of the present study, soybean oil meals with high ureas activity up to 1.03 expressed as grams N released per 100 grams of soybean oil meal, can be used as a feed ingredients in broiler diets. It can be used up to 23.5 percent of a complete broiler ration with good nutritional value.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1987 A5 A24

Document Type

Thesis

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