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EFFECT OF DIETARY SUPPLEMENTATION WITH L - ARGININE ON TESTOSTERONE AND ESTROGEN CONCENTRATIONS IN BLOOD PLASMA AND FERTILITY AND HATCHABILITY OF NATIVE TURKEY | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 16, Issue 6, 2011, Pages 0-0 | ||
| Authors | ||
| H. J. Al-Daraji; M. A. Al-Bayar; W. M. Razuki | ||
| Abstract | ||
| This study was conducted at the Poultry Research Station (Abu Ghraib), State Board of Agricultural Research, Ministry of Agriculture for the period from 30 September 2009 to 24 January 2010 to study the effect of adding different levels of synthetic amino acid LArginine to turkey diet on testosterone and estrogen concentrations in blood plasma and percentages of fertility, hatchability and embryonic mortality. A total of 36 males and 60 females, 32 weeks of age were randomly selected from the native turkey stock that reared in Poultry Research Station (Abu Ghraib). The birds were distributed randomly into 4 treatments (0, 0.05, 0.1, or 0.15 % arginine). The males and females were distributed into 12 pens (replicates) with 3 replicates for each treatment, three males were assigned for each replicates (9 males for each treatment) and five females were assigned for each replicates (15 females for each treatment). Results revealed that supplemented diet of turkey with L-arginine resulted in highly significant (P<0.01) increase in testosterone and estrogen concentrations in blood plasma during all months of the study and with relation to the total mean of blood plasma concentrations of these two hormones. However, insemination of the females by semen collected from males fed diet supplemented with the same level of Larginine resulted in highly significant increase (P<0.01) in percentages of fertility, hatchability of fertile egg, and hatchability of total egg and significant decrease (P<0.05) with respect to percentage of embryonic mortality in all hatches included in this study and regarding the total means of these traits. In conclusion L-arginine could be used for improving reproductive performance of turkey. | ||
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