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International Journal of Poultry Science

.: Home > International Journal of Poultry Science > 2009 > Volume 8 Number 11 > D.M. Ogah1, A.A. Alaga2 and M.O. Momoh3

Principal Component Factor Analysis of the Morphostructural Traits of Muscovy Duck

D.M. Ogah1, A.A. Alaga2 and M.O. Momoh3
1Department of Animal Science, College of Agriculture, Lafia, Nasarawa State, Nigeria 2Department of Pathology and Microbiology, College of Veterinary Medicine, University of Agriculture, Makurdi, Benue State, Nigeria 3Department of Animal Breeding and Physiology, College of Animal Science, University of Agriculture, Makurdi, Benue State, Nigeria
Abstract :

Eleven body measurements were taken on 320 adult Muscovy duck (124 male and 196 females)
within the guinea savanna zone of central Nigeria. The body measurements included Body Length (BDL),
Body Width (BDD), Bill Length (BLL), Bill Width (BLD) Bill Height (BLH), Shank Length (SHL), Body Height
(BH), Head Length (HL) Neck Length (NL), Head Width (HD) and Wing Length (WL). Sex had significant
influence on all traits with higher means recorded for male traits. The correlation coefficient of the body
measurements range from negative to moderately high for both sexes. In factor solution of the principal
component analysis with VARIMAX rotation of the transformation matrix, four factors with ratio variances of
71.85% were identified for male, the first factor accounted for 36.66% and had its loading for body width, bill
width, shank length and body height. In female 2 factors with ratio variances of 53.04% were extracted, the
first and the second factors explain 36.76 and 16.27% of the generalized variances with the first had its
loading on body length, bill width, body height, neck length and wing length respectively. From the result
factor loading in Muscovy duck is sex dependent and can be exploited in improvement programme for the
bird.

Keywords :
Body measurement, factor analysis, muscovy duck, variance

Date Deposited : 06 Jul 2011 13:23

Last Modified : 06 Jul 2011 13:23

Official URL: http://www.pjbs.org/ijps/ijps.htm

Volume 8, Number 11, - 2009 , ISSN 1682-8356

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