TY  - JOUR
N1  - School of Agricultural and Environmental Science, Department of Agricultural Economics and Animal Production, University of Limpopo, Private Bag X1106,Sovenga 0727,Limpopo, South Africa
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85128273487&doi=10.54203%2fscil.2022.wvj9&partnerID=40&md5=24afabf997879dfb6cfe22b1ac3909cf
SP  - 66
Y1  - 2022/03/25/
AV  - public
A1  - Selala, L.J.
A1  - Tyasi, T.L.
KW  - adult; animal experiment; animal model; article; body height; body weight; breeding; controlled study; Dorper sheep; female; heart; lamb; male; mean squared error; morphological trait; nonhuman; regression model; sternum
EP  - 73
VL  - 12
SN  - 2322-4568
TI  - Using Morphological Traits to Predict Body Weight of Dorper Sheep Lambs
N2  - The Dorper sheep are known to be a fast-growing breed with a very good body conformation that produces high-quality carcass. The recent study was conducted to determine the relationship between body weight (BW) and morphological traits, such as heart girth (HG), rump height (RH), body length (BL), withers height (WH), and sternum height (SH). A total of 51 Dorper sheep lambs (29 female and 22 male lambs) were used as experimental animals. The data was collected 24 hours after birth. Data were analyzed using Pearson?s correlation and simple regression to attain the objectives. The obtained results indicated that BW had a positively high statistically correlation with HG (r = 0.81), RH (r = 0.766), BL (r = 0.893), WH (r = 0.874), and SH (r = 0.618) in female Dorper sheep lambs. Furthermore, results showed that BW had a positively high statistically significant association with HG (r = 0.886), RH (r = 0.590), BL (r = 0.900), WH (r = 0.613), and SH (r = 0.707) in male Dorper sheep lambs. Simple regression models for morphological traits indicated that BL had the highest coefficient of determination (R2 = 0.80) and the lowest mean square error (MSE = 2.83) in female Dorper sheep lambs, and also the highest coefficient of determination (R2 = 0.81) and mean square error (MSE = 1.07) in male Dorper sheep lambs. In conclusion, the findings indicated that improving HG, RH, BL, WH, and SH might result in the enhancement of BW in Dorper sheep lambs. Simple regression results suggested that BL could be selected as a facilitating factor in the breeding programs to improve the BW of Dorper sheep lambs at birth. © 2022, World?s Veterinary Journal. All Rights Reserved.
PB  - Scienceline Publication, Ltd
JF  - World's Veterinary Journal
IS  - 1
ID  - eprints674
ER  -