Abstract
Four hundred fertile eggs of broiler breeder Ross strain were incubated in commercial Hatchery. Eggs were injected into amniotic fluid on 18th day of incubation after divided into four treatment groups (100 eggs per treatment) with two replicates. First treatment was injected 100 µl of PBS, second treatment was injected with100 µl of inactivated ND vaccine, the third treatment was injected with 100 µl of inactivated ND vaccine and 50 µl vitamin E (oily form) and finally the fourth treatment was injected with 100 µl of inactivated ND vaccine and 50 µl Cod liver oil. All injected eggs were carried back into hatchery for complete hatching process. Hatched chicks were transported to the farm of the Veterinary Medicine College/University of Baghdad for 42 days from 6/10/2011 to 16/11/2011. The hatched chicks from the previously treated groups were distributed into four treatments with two replicates for up to the experimental end. Results of treated groups showed significant (P ≤ 0.05) increase in body weight, weight gain, as well as significant reduce in feed intake and improvement in feed conversion ratio, also, antibody titers against Newcastle disease virus of treated groups showed significant (P ≤ 0.05) increase progressively with age until the end of the experiment compared with broiler chicks of control.
Highlights
Introduction and animalsImprovement in immune functionMany of researches were showed possibility of broilers fed with omega-3 poly unsaturated early nutrition of chicken embryos, it was very important to reduceIn poultry, vaccines are generally exposure of nutritional diseases, as well as this technique has proven Recently, in ovo vaccination technique has requirements for embryos of modern broiler been developed that several advantages like breeds more than old breeds [1]
Unsaturated fatty Newcastle disease on day 18 of incubation, acids which are found in cod liver oil, richest newly hatching chicks have gave early food omega- 3 are important in growth and protection despite presence of maternal development of broilers, as well as, elevation in antibodies (7 and 8)
The objective of this study is to determine the effects of injection of broiler hatching egg with vitamin E and cod liver oil on some their productive traits and immune response to Newcastle disease vaccine
Summary
Introduction and animalsImprovement in immune functionMany of researches were showed possibility of broilers fed with omega-3 poly unsaturated early nutrition of chicken embryos ( known as fatty acids [4,5,6].in ovo feeding ), it was very important to reduceIn poultry, vaccines are generally exposure of nutritional diseases (less supply of administered as aerosols, oculo-nasal drops and energy, less supply of some vitamins and through drinking water or by injection , minerals), as well as this technique has proven Recently, in ovo vaccination technique has requirements for embryos of modern broiler been developed that several advantages like breeds more than old breeds [1]. Pressure, arthritis, and other types of infections, increased the level of immune response and in addition to increase the immunity and reduce protect the body from the stress [9], and the incidence of cancerous diseases in humans stimulated the immune system as an active natural antioxidant in the body [10] It worked to prevent the damages of body cells by prevent formation of free radicals and the oxidation of unsaturated fatty acids to maintain the membranes of lymphocytes and macrophages cell responsible for stimulation cellular and humoral immunity and gave body the ability to resist different bacterial infection [11]. The objective of this study is to determine the effects of injection of broiler hatching egg with vitamin E and cod liver oil on some their productive traits and immune response to Newcastle disease vaccine
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