SOURCES OF SHARED VARIABILITY IN BODY WEIGHT AND LINEAR BODY MEASUREMENT TRAITS OF TWO BREEDS OF RABBIT
Egena, S.S.A*1, Akpa, G. N2, Aremu, A1. and Alemede, I. C1
|Corresponding Author: Egena, S.S.A, Department of Animal Production, Federal University of Technology, P.M.B 65, Minna, Niger State, Nigeria,E-mail: firstname.lastname@example.org,Tel:2348033117407|
|Received: 04 February 2014 Accepted: 04 March 2014|
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Records obtained from two breeds of rabbit; New Zealand White and Chinchilla were used in the study. Body weight, nose to shoulder length, shoulder to tail length, heart girth, trunk length and length of ear were the parameters measured. The objective of the study was to assess variability among body weight and linear body measurement traits of the rabbit breeds and hence, deduce the components that best describe body weight using factor analysis.Correlation coefficient between body weight and linear body measurements in the New Zealand White rabbit ranged from 0.723 to 0.931and 0.713 to 0.938 in the Chinchilla rabbit, respectively. The shares of total variance of the first two principal factors were55.6% and 32.7% for New Zealand White rabbit, and 50.8% and 35.3% in the Chinchilla rabbit respectively. Together the first two factors accounted for 88.2% and 86.1% of the total variability in the New Zealand White and Chinchilla rabbits, leaving 11.8% and 13.9% as unique factors respectively. The first factor in all the breeds accounted for the greatest percentage of the total variability and hence, was representative of body weight.