Abstract:
Abstract
The study was conducted to study the Fattening characteristic of two
main sub types of western baggara cattle, namely Nyalawi and
Messaria sub type. Twenty four bulls, they were divided in to two main
sub groups. (Twelve animals for each sub type). With average initial
weight were no significant different between them
(219.167±10-219.167±8 Kg) respectively, each sub type was sub
divided into three sub groups (four animals each). The animals were
fed complete fattening diet of (Kenana natural animal feed). The
animals are slaughtered when reached target slaughter weight
(287.5±4.18 Kg for Nyalawi and 283.33±5.16 Kg for Messaria).The
results of the study indicate that the Nyalawi sub type have a
superiority on Messaria sub type, in daily gain, feed conversion ratio,
period on fed days but not significant. And also feed intake of Nyalawi
sub type did not deteriorate when ambient temperature raised. While
feed intake of Messaria sub type deteriorated significantly by rise of
ambient temperature. Data for this study explained that both sub type
western baggara cattle had a high average weekly gain in week No.1,
there after that the average weekly gain and feed conversion ratio
deteriorated as the animal increased in weight that maybe the bulls
reached the finishing but the Messaria reached finishing faster than
iv
Nyalawi sub type. Under studied bulls showed that the optimum
duration for fattening period of Messaria sub type is six weeks while
that of Nyalawi sub type is eight weeks. No significant difference
between the two sub types of western baggara cattle under studied for
non carcass components. There was a high significant different in
Neck percentage of lift side weight (P<0.0004) with superiority for
Nyalawi on Messaria sub type. According to body measurement this
present study was revealed that the Nyalawi sub type is larger frame
animal compared to Messaria sub type where is the significant deferent
in Chest depth and Pelvic width (P<0.01 and P<0.02) respectively. And
also there was a significant different in percentage of subcutaneous fat
thickness (P<0.05), which high in Messaria when compared to Nyalawi
sub type.
Results of this study indicate that the Nyalawi sub type suitable for
commercial production when compared to Messaria sub type that
because the Nyalawi sub type had a higher dressing percentage based
on live or empty weight, warm or child. Economical return for this
study showed that the Nyalawi sub type had a higher net profit
percentage proportion on total cost by (2.3%) more than Messaria sub
type.
