EFFECT OF VARYING LEVELS OF IRON FORTIFIED LOCALLY PRODUCED NATURAL VITAMIN PREMIXES ON THE HISTOLOGY AND SPECIFIC ENZYME ACTIVITIES OF BROILERS.

Abstract

Enzyme activities and histology of some organs were investigated in broilers
fed diets containing graded levels of iron-fortified locally produced natural
vitamin premix (LPNVP) in a completely randomized design.
Histological alterations were observed in organs such as liver, kidney and
villi fox birds fed diets containing iron-fortified (LPNVP). These alterations
were more pronounced in broilers fed lower levels of LPNVP. Histology of
the red blood cell confirmed the necessity for iron fortification of LPNVP.
Plasma alkaline phosphatase (IJAB) and serum aspartate amino transferase
(ASP) values were significantly different (Pe0.05) among the different
treatments. However, normal values were observed for broilers fed
Commercial vitamin-mineral premix (CVMP)- based diet. The values reported
for serum alanine amino transferase (ALT) was not different (P>0.05)a mong
the various treatments.
In summary, the results of enzyme activities tended to corroborate with the
observed alterations in the histological studies. Lower inclusion levels of
the iron-fortified (LPNVP) did not adequately supply the needed vitamins
for use in the broilers. However, as the levels of inclusion of the LPNVP
increased, there was consisient improvement in the histological competence
and enzyme profile of broilers.