Estimation of mature live weight using some body measurements in Karya sheep

The aim of this study was to determine models which will be used for the estimation of adult live weights based on some body measurements using multiple regression model in Karya sheep of different age groups. Animal material of the study consisted of a total of 215 Karya sheep. Least squares means for live weight, body length, rump height, withers height, back height, chest depth, chest girth, and chest width of Karya sheep in Adnan Menderes University Group Sheep Breeding Program elite flock and breeder flocks were found as 47.24 kg, 67.08, 68.29, 68.58, 66.97, 30.04, 93.24, and 18.29 cm, respectively. Karya ewes were put into five categories according to ages (2–6 years). High positive phenotypic correlation coefficients were observed between live weight and body measurements of animals in different age groups (2–6 years). Among the formed multiple regression models, the highest coefficients of determination (R2) were obtained from the models formed for body length or body length and chest girth together (R2 = 0.79, R2 = 0.87). It is concluded that live weight of Karya sheep can be estimated with a high accuracy using some body measurements and statistical methods.

[1]  E. Ampofo,et al.  Predicting the liveweight of sheep by using linear body measurements. , 2000 .

[2]  M. Atta,et al.  Use of heart girth, wither height and scapuloischial length for prediction of liveweight of Nilotic sheep , 2004 .

[3]  M. Yardımcı,et al.  Estimating the live weight using some body measurements in Saanen goats. , 2008 .

[4]  Özdal Gökdal,et al.  Different Production Traits and Body Measurements of Karakaş Sheep in Rural Farm Conditions , 2004 .

[5]  A. Aganga,et al.  Body weight, body condition score and heart girth in indigenous Tswana goats during the dry and wet seasons in southeast Botswana , 2003 .

[6]  O. S. Sowande,et al.  Body measurements of west African dwarf sheep as parameters for estimation of live weight , 2008, Tropical Animal Health and Production.

[7]  B. Yalçin.  Sheep and Goats in Turkey , 1987 .

[8]  M. Topal,et al.  Determination of Best Fitted Regression Model for Estimation of Body Weight in Awassi Sheep , 2003 .

[9]  J. J. Olivier,et al.  Relationship between production performance, visual appraisal and body measurements of young Dorper rams , 2002 .

[10]  A. Ceyhan,et al.  The Present Studies on Animal Genetic Resources in Bandirma Sheep Research Station: a Review , 2011 .

[11]  S. Marelli,et al.  Body measurements in Bergamasca sheep , 2004 .

[12]  J. D. Amin,et al.  Estimating body weight from morphometric measurements of Sahel (Borno White) goats , 1997 .

[13]  Mehmet Akif Cam,et al.  Body measurements reflect body weights and carcass yields in Karayaka sheep. , 2010 .