تأثير حقن امهات الدجاج البياض المحلية سلالة ميزو بهرمون البروجسترون في النسبة الجنسية الأولية و الثانوية للأفراخ الفاقسة و نسبة الخصوبة و الفقس

الملخص EN

This study was conducted at the Poultry Research Station (Abu Ghraib), Stata Board of Agriculture, Ministry of Agriculture, for the period from 22 April to 30 June 2015 to study the effect of increasing concentration of blood hormone Progesterone on embryos sex, hatching chicks sex, fertility and hatchability.

Total of 75 birds 54 weeks age from native Layer breeder (Mezo breed) were used.

The birds were distributed were distributed randomly for 3 treatments add to 2 control groups each treatment contain 15 hen with 3 replicates per each treatment.

Each replicate consist of 5 hens, 10 hens were breeded separately for use it in artificial insemination.

Treatments were distributed as follow: First treatment (C1): Control group: without injection.

Second treatment (C2): Control group(2): Injection subcutaneous in back of neck with 0.5 ml sesame oil/hen/week.

P3, P4 and P5 treatments were Injection subcutaneous in back of neck with 250, 500 and 750 µg of progesterone dissolved with 0.5 ml of sesame oil/hen/week.

Artificial insemination were obtained for one time weekly.

Primary and secondary sex ratio, fertility and hatchability from all and fertile egg was studied.

Significant decreasing (P≤0.0001) in hatching males and male embryos for T1 and T2, Significant increasing (P≤0.0001) in males embryo percentage for T3 compared with controls.

Significant (P≤0.0001) decreasing in fertility for P1 and P2 compared with C1 in two hatching, Significant increasing (P≤0.0001) in two hatching mean from all eggs compared with C1, Significant increasing (P≤0.002) in hatching from fertile eggs for two hatching