Keywords : egg quality


Effect of using different levels of hatchery by product as a source of animal protein on egg quality of laying hens breeds ISA Brown

A. A. Majed

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2009, Volume 7, Issue 1, Pages 273-287

This study used Sixty ISA Brown layers were produced egg of brown layer, all at 22 weeks of age. The objective of this study was to determine the possibility of using hatchery by product as a source of animal protein and its effect on egg of Brown layer hens quality traits. Four levels of hatchery by product were used (0, 3, 7 and 9)% so four treatment were obtained with 5 replicate (3 bird/replicate) for each were used in this study which lasted for five periods (March- July), The duration of each period was 28 day. The result of egg quality traits indicated improvement in thickness and weight egg as compared with control diet. Also the results showed that T3 significantly different (p<0.05) with other treatment in percentage of the shell to egg weight. The results showed there are no significant differences in yolk weight and Haugh unit. The thired on T3 showed significant increase with T2 and T4 in white weight but there were no significant difference with T1. Also T3 showed significant difference in white index as compare with other treatment. All eggs quality traits showed significantly reduced during May, June and July as compare with March and April.

Effect adding Vicia faba L. in diets on some egg quality traits of laying hens during summer season

A. A. Al-Mashhadani; B. H. Moussa; A. A. Jasem; T. T. Mohamed

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2008, Volume 6, Issue 2, Pages 227-236

This study was conducted in poultry farm of College of Agriculture, Al-Anbar University. The objective of this study was to determine the possibility of using partial replacement of (Vicia faba L.) instead of Soybean meal on egg quality during summer months. Five levels of (Vicia faba L.) were used (0, 2.5, 7.5, 12.5 and 17.5)%, so five treatments were obtained with 5 replicates for each Seventy five ISA Brown layers aged 30 weeks were used. This study lasted for three periods (July-September). The duration of each period was (28 days).
The results indicated significant increase in egg quality when feeding hens an theist included 2.5-7.5% (Vicia faba L.) during the summer month. However, significant reduced in Yolk index, specific gravity and shell thickness at August as compare with July and September.
The results of this study also revealed, no significant differences among different treatments in shape index, Yolk index and Haugh Unit. There's no significant differences between experimental months in shape index and Haugh Unit.