Effect of supplementing different levels of L. Arginine to diet on some egg quality traits to laying hens (lohmann brown) under heat stress conditions | ||
| Al-Anbar Journal of Veterinary Sciences | ||
| Article 1, Volume 5, Issue 2, December 2012, Pages 70-76 | ||
| Author | ||
| H. A. Merzza | ||
| Abstract | ||
| This experiment was conducted at the poultry farm of Animal Resource Department/ College of Agriculture/ University of Baghdad during the period from 1/5/2011 to 2/7/2011 to study effect of supplementing different levels of L. Arginine to diet on some egg quality traits to laying hens (lohmann brown) under heat stress conditions. 96 commercial laying hens strain (Lohmann Brown) at age of 38 weeks were used. hens were randomly distributed into four treatments, each treatment contained 3 replicates, and each replicat consisted of 8 hens. The treatments were as follows: T1 (control treatment) free of arginine, either tratments T2, T3, T4 contained the arginine ratios (0.4, 0.7, 0.9)% respectively, where he became the quantities of arginine in the four tretments T1, T2, T3, T4 is (1.1, 1.5, 1.8, 2.0)%, respectively. The results revealed that T3 and T4 significantly (P<0.05) surpass other treatment (T1 and T2) regading the general mean of albumen diameter and shall thickness, while T2 recorded the highest value (P<0.05) with relation to the general means of haugh unit, yolk weight and relative weight of yolk as compared with other treatments (T1, T3 and T4). However, there were no significant (P>0.05) differences among all treatment groups as regards the general means of egg weight, yolk height, albumen height, yolk index, albumen index, albumen weight, relative weight of albumen, shell weight and relative weight of shell. In conclusion, dietary supplementation with arginine resulted in significant improvement concerning certain studed characteristics included in this study in laying hens reared under heat stressin comparison of control group (free of arginine; T1) | ||
| Keywords | ||
| levels of L; arginine; egg quality traits; laying hens; heat stress conditions | ||
|
Statistics Article View: 37 PDF Download: 24 |
||