دراسة تأثير حقن أجنة بيض التفقيس لأمهات فروج اللحم بالمواد المغذية و التغذية المبكرة في بعض الصفات الإنتاجية و الفسلجية

Abstract EN

This study including the effect of chickens embryos injection with nutritional fluids and early feeding ( at hatchery) to improve productive and physiological traits of broiler chickens .

using seven hundred Hubbard fertely eggs divided in to equal 7 treatmants were injected on day 18 of incubation with 0.5 ml, 1.5% concentration of different compounds into ear sac as follows .

Glucose (treatment 1) ascorbic acid (treatment 2), lysine (treatment 3) methionine (treatment 4), mixture (treatment 5) sterile distilled water alone (treatment 6) and negative control without injection (treatment 7).

Eggs carried back to incubation.

Hatching chicks of each treatment were divided into two groups.

Chicks of first group were fed starter diet at hatchery (early feeding), whereas second group was fed after (12 hours) at poultry farm.

All birds were reared till 8 weeks at the Poultry Farm for Research.

Results obtained can be summarized as follows: 1-A significant (P < 0.05) increase in chick final weight .

2-A significant inprovement in feed conversion ratio also dressing percentage in injected treatments.

3- Injected treatments exhibited a significant (P > 0.05) increase in hemoglobin concentration.

4- Early feeding (at hatchering) has surpassed feeding at poultry farm with respect to productive and physiological traits.