Liveweight determination of Philippine native pigs (Quezon strain) using external body measurements

Date

12-2013

Degree

Bachelor of Science in Agriculture

Major Course

Major in Animal Science

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Kristine C. Cordoves

Abstract

The objective of this study was to determine the liveweight of ready-to-market Philippine native pigs with the use of external body measurements such as heartgirth, midriff girth, flankgirth and body length. A total of 54 Philippine native pigs (Quezon strain 13 males and 41 females) weighing 20 to 50 kg were used in the study. The body length (BL), heartgirth (HG), midriff girth (MG) and flankgirth (FG) were measured in centimeters, whereas the actual body weight (BW) was measured in kilograms. Results of the correlation analysis showed that strong to very strong positive linear relationship existed between the BW and HG (P<0.01 r=0.94), FG (P<0.01 r=0.91), MG (P<0.01 r=0.88) and BL (P<0.01 r=0.76). Based on the simple linear regression analysis, HG is the best estimator of the body weight of Philippine native pigs and it can explain 88% of the total variability of body weight. Results of multiple regression analysis showed that HG and BL best explain the total variation in body weight of Philippine native pigs. Moreover, predicting equations for determining body weight of pigs were developed. From these results, it was concluded that the external body measurements such as heartgirth, midriff girth, flankgirth and body length can be used to determine the body weight of Philippine native pigs especially in rural areas where marketing of pigs is compromised due to the unavailability of weighing scales.

Language

English

Location

UPLB College of Veterinary Medicine (CVM)

Call Number

LG 993.5 2013 A3 /P36

Document Type

Thesis

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