Abstract:
This work was conducted in attempt to study the relationship between
live weight and body measurements to predict live weight of Sudanese
beef cattle, linear body measurement were taken from 90 western
Baggara bulls ranged from <200 kg to 400 kg live weight. The animals
were grouped into 3 sub groups according to live weight range (A>200
.(B) 205 — 300 (C ) 305 — 400 kg
For the over all bulls the study reveled that heart girth and heart
around the hump had the highest coefficient of determination with live
.weight (R2 = 0.89 and 0.93), P <0.001 respectively
The heart girth group B & C revealed the lowest coefficient of
determination with live weight R2 0.64 and 0.82 P< 0.001 respectively
this gave more confidence in the use of the former measurement in
prediction of live weight of humped cattle, the calculation of the
regression of weight on heart girth around the hump indicated that a
straight line relationship existed the regression equation for estimation
:live weight of cattle were as follows
Y = -516.65 + 5.30x
,Where
(Y live weight (kg
( X heart girth(cm
The study revealed that the higest coefficient of determination stand
for the heaviest group where increase live weight showed highest
correlation coefficient with body measurement while animals with
light weights (lower than 200 kg,)had no significant P< 0.001 low
. correlation coefficient compared by animal oldest weights
