Relationship between environmental temperature, relative humidity, heat index and egg production performance of Philippine Mallard duck (Anas platyrhynchos Linn.) raised in semi-confinement system

Date

4-2013

Degree

Bachelor of Science in Agriculture

Major Course

Major in Animal Science

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Veneranda A. Magpantay

Abstract

On-farm research was conducted to determine the relationship between temperature, relative humidity, temperature-humidity index and egg production performance of Philippine Mallard duck (PMD) in semi-confinement. Commercial Temperature-RH data logger was used. Descriptive and correlation analyses were employed. Results showed that the average temperature and RH were higher inside than outside the duck house. Average temperature was observed to be highest from 08:00h to 17:00h while RH was highest from 18:00h to 07:00h. RH varies inversely with temperature. The inflection and deflection point of temperature and relative humidity inside the duck house happened simultaneously at 07:00h. From 09:00h to 15:00h, THI is under danger level. Pooled data showed that RH (r=-0.66) and THI (r=-0.20) were correlated (p<0.05) with hen-day egg production, while egg weight was negatively correlated (p<0.05) with RH. Results indicate that PMD raised in semi-confinement is vulnerable to heat stress caused by cyclic temperature, RH, and THI. The combined effect of high environmental temperature and RH (i.e. THI) could be more threatening and important rather than the individual influences. Moreover, the results suggest the need to employ measures that could alleviate heat stress inside the house, especially from ix 9:00h to 15:00h where THI were observed to be in danger zone to avoid abrupt reduction in hen-day egg production and egg weight.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2013 A3 /R45

Document Type

Thesis

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