Effect of Feed Restriction in Period on broiler chicken Performance and Carcass traits.

Effect of Feed Restriction in Period on broiler chicken Performance and Carcass traits.


Hersh A. faraj



Sulaimaniyah University, Faculty of Agricultural science, Animal production Department
Email: hearshabdul@yahoo.com




Article info

Original: 15 May.  2015

Revised:24 June. 2015

Accepted:30 August. 2015

Published online:  20 March.  2016




Key Words:

Performance,
Carcass traits,
Feed Restriction,
Finisher Period,
Broiler.


Abstract
The feed restriction program is one of the main techniques in growth
curve manipulation for increasing production efficiency in broiler
chicken, therefore, this experiment was conducted to determine the
effects of different feed restriction levels, at finisher phase from 30
to 42 days, on productive performance and carcass traits. In this
experiment a number of 90 Male Ross broilers were used, the chicks
were distributed into five treatments at three replications for each
treatment and six chicks for each replication. The first group was
control (T1) which the chicks of this group were fed according to
Ross Management Manual, and (10, 15, 20 and 25% less than Adlibitum)
for T2, T3, T4 and T5 respectively. The results showed that
feed intake at different levels was significantly (p<0.05) less than
the control group. Meanwhile, at 42 days old Live weight, body
weight gain and feed conversion ratio of (T2, T3, T4 and T5) were
numerically less than the control group, nevertheless, these
differences were not significant (p>0.05). The results also show that
carcass traits were significantly (p<0.05) affected by feed restriction
at which abdominal fat percentage in all treatment groups were
significantly (p>0.05) lower compared to control group. Meanwhile
carcass weight, gizzard percentage and dressing percentage in all
treatments were numerically lower than the control groups, however
differences were not significant (p>0.05). In conclusion; results
shows that using feed restriction (less than the Ad-libitum feed
intake decreased significantly the feed intake without any effect on
productive performance and carcass traits.






Ċ
Ramyar Abdolrahman Taimur Ismail,
Mar 20, 2016, 4:53 AM