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LEVEL OF ADENOSINE DE AMINASE (ADA) ENZYME IN ADAPTED WHITE LEGHORN CHICKENS AND LOCAL AND THEIR PROGENY | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 40, Issue 5, 2009, Pages 133-141 | ||
| Authors | ||
| E. H. Al-Mashhadani; E. H. Al-Anbari; E. K. Shubber | ||
| Abstract | ||
| This experiment applied in Poultry Farm, College of Agriculture, University of Baghdad, to measure the specific activity (SA) of ADA enzyme in three groups of studied birds The first was white leghorn birds artificially inseminated and were caged in individual panes. The second was naturally- inseminated white leghorn birds caged in three panes reared on floor and; the third group was naturally- inseminated local birds reared on floor placed in free flat hall. At the same time SA of ADA was measured in hens and roosters at age 34 weeks as well as in their progeny at different ages starting from embryos till their sexual maturity. Chicks in the three groups were caged under similar conditions, and their females were placed for each group. The SA of serum ADA did not differ significantly among various ages of each group. The local females exhibited the highest SA 17.26 u/mgp as compared to other ages. Similarly higher SA of ADA was noticed pertaining the local males 14.60 u/mgp of the same age as compared to white leghorn males and for the first group 4.968 u/mgp. Differences were not significant (P > 0.01) in serum ADA activity which observed in chicks belonging to the three groups in various ages until 24 weeks (sexual maturity) The local ancestor (group three) exhibited the significant higher SA for ADA, 5.20 u/mgp as compared with (0.54 u/mgp) for the white leghorn chicks. In the second group, the mean value of ADA enzyme was medium between the two mentioned groups and was 3.73 u/mgp. On the 32 weeks age the local gave a higher level of SA for ADA as compared with other groups. Higher level of ADA in local breed in different ages and sexes might indicate indirectly the greater immunity in relation with white leghorn breed. Adding the indication that the local chickens have higher immunity level of resistance appeared indirectly through measuring ADA immunity level in it compared with breed of white leghorn in Iraq. | ||
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