Estimation of Body Weight of Nigerian Local Turkeys from Zoometrical Measurements at 4, 8 and 12 Weeks of Age

S.O. Durosaro

Estimation of Body Weight of Nigerian Local Turkeys from Zoometrical Measurements at 4, 8 and 12 Weeks of Age

S.O. Durosaro * §

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§ Federal University of Agriculture, P.M.B. 2240, Abeo...

Estimation of Body Weight of Nigerian Local Turkeys from Zoometrical Measurements at 4, 8 and 12 Weeks of Age

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Abstract

In Nigerian markets, birds are sold on face value and not by actual body weight which prompted this experiment. This experiment was conducted to predict body weight from zoometrical measurements (body length, breast girth and keel length) in Nigerian local turkeys at different ages. A total of 250 poults were used for the study which lasted for 12 weeks. Measurements of body length, breast girth and keel length were regressed against body weight using linear, quadratic and cubic functions. The coefficient of determination (R 2 ) obtained varied from 24.62% to 81.93% for the three functions. Cubic function had the highest R 2 values for all the zoometrical measurements, while linear function had the least R 2 values in all the three age groups. The highest R 2 value (81.93%) was obtained at the 8 th week. Best accuracy of prediction was obtained with breast girth in all the age groups. From the results obtained in this study, body weight of turkeys can be predicted from any of the body length, keel length and breast girth with best accuracy of prediction obtained with cubic function and breast girth as the regressor.

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

S.O. Durosaro. 1970. "Estimation of Body Weight of Nigerian Local Turkeys from Zoometrical Measurements at 4, 8 and 12 Weeks of Age". Global Journal of Science Frontier Research - G: Bio-Tech & Genetics GJSFR-G Volume 13 (GJSFR Volume 13 Issue G1).

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GJSFR Volume 13 Issue G1

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Journal Specifications

Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

Keywords

body weight coefficient of determination regressor turkeys zoometrical measurements

Classification

GJSFR-G Classification FOR Code: 060899

270299

Submission ReceivedNovember 30, 2012
Peer Review Double Blind
Handling Editor
Accepted December 28, 2012
Published January 8, 2013

Version of record

v1.2

Language

English

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Article Matrices

Total Score: 153

Country: Nigeria

Subject: Global Journal of Science Frontier Research

Authors: S.O. Durosaro, M.S. Oyetade, B.M. Ilori, A.S. Adenaike, O. Olowofeso, M. Wheto, S.A. Amusan, S.O. Osho, M.O. Ozoje (PhD/Dr. count: 0)

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