The blue-green algae (Spirulina platensis) is widely distributed worldwide. The nutritional value of Spirulina algae is well-documented. Spirulina has unique high protein content, about 50-70% by dry weight, and it is considered as a good source of essential amino acid. Additionally, Spirulina was recognised to have a wide range of essential nutrients, including essential fatty acids and polysaccharides, vitamins and minerals, and carotenoids.The aim of this study was to determine the injection effect of spirulina liquid extract on fertility and hatching traits, production performance, and some biochemical characteristics of quail eggs during the incubation period. Four hundred and fifty eggs were selected for hatching. The eggs were divided into three groups, and every group was treated differently. The results of the first treatment showed that there was a significant difference in the hatchability percentage of fertilized eggs. Furthermore, the percentage of failed eggs and weak chicks from the control treatment is almost significantly. The results of the second treatment showed that there was no effect on the average weight of the hatched chicks and feed conversion ratio. The third treatment showed a significant increase in the weight gain and feed consumed. It was noticed that the treatments did not have a notable effect on the relative weight of the liver, heart, and intestines. No significant differences were observed of physiological characteristics, as total protein concentration, enzymatic activity of GOT, GPT, and MDA level. The third treatment caused an increase in GSH glutathione level comparison with a control treatment. The injection of spirulina liquid extracts in late stages of incubation could improve the hatchability percentage chicks and their chances of survival. It can also strengthen the new hatch chicks immunity and antioxidants status.

This study conducted in the Physiological Laboratory of the Department of Animal Production/College of Agriculture/Tikrit University, with the aim of finding out the effect of the genotype and sex of local chickens and Brahma chickens on some hematological traits. Used 24 blood samples, twelve samples from local chickens and Brahma chicken, with six samples for both sexes. After performing the hematological analyzes, the following results showed A significant effect of the genotype was observed in the TCH, HB, MCV and MCH. Moreover, it showed a significant increasing for domestic chickens compared to Brahma chickens. The total number of red and white blood cells did not significantly affect the genotype. Sex had a significant effect on most of the studied traits (HCT, HB, RBC, MCV, and, MCHC), where males significantly outperformed females. The interaction between genotype and sex had a noteworthy impact (p≤ 0.05) on most ofthe considered characteristics, and it by and large demonstrated a noteworthy diminish within the examined characteristics in female Brahma chickens compared to male and female residential chickens and indeed male Brahma. However, not effect in WBC count. From the results local chickens recorded to exceed expectations in most of the physiological characteristics and for both genders, the immune status of both genetic structure was rise to, and this may show the versatility of the Brahma chickens to the Iraqi airspace.

This experiment was conducted in private poultry farms / Sharqat district during the period from 8/15/2020 to 19/9/2020 The aim of this study is to find out the effect of adding two levels of nano-selenium and securing E in the diet on productive, physiological and immunological performance in addition to the carcass’s physical and chemical characteristics. For meat broilers (Ross 308.) 234 birds of broiler meat were used in the experiment (Ross 308), one day old, not nationalized and equipped from the Mardin company hatchery / Erbil governorate and distributed randomly into 6) factors for each treatment (3) replicates of (13) birds for each Duplicate. The first treatment was the control treatment and the second treatment was a basic diet to which a supplement of nano-selenium was added at a concentration of 0.25 mg / kg, and the third treatment was a basic diet to which a supplement of nano-selenium was added at a concentration of 0.35 mg / kg, and the fourth treatment was a basic diet to which a supplement was added with a supplement with a vitamin E at a concentration of 300 mg / kg. The fifth and sixth are basic diets to which add nano-selenium at a concentration of 0.25 and 0.35 mg / kg + with insurance E at a concentration of 300 mg / kg, respectively. The results of the statistical analysis indicated that there were no significant differences in the production performance at this level of nano-selenium and vitamin E, while it showed The fifth treatment was significantly higher in the amount of feed consumed in the first and fourth weeks. As for the results of the statistical analysis of blood tests, it indicated that the number of red blood cells, the size of compact cells, and the hemoclopin ratio of the trial treatments improved significantly compared to the control treatment, while the white blood cells and lymphocytes showed significant differences (P ≤ 0.05) compared to the control treatment. As for the biochemical characteristics, we note that All treatments significantly outperformed (P ≤ 0.05) over the control treatment, but no significant differences were observed between the experimental treatments in the characteristic of low-density lipoproteins. As for the physical properties of the meat, there were significant differences (P ≤ 0.05) in favor of the nano-selenium treatments, where the sixth treatment recorded the highest concentration of selenium in the breast meat tissue, while the second, fourth and fifth treatments recorded a significant decrease (P ≤ 0.05) in the pH of the meat compared with the control treatment. This reduces the microbial activity and prolongs the storage and preservation period of meat, and in the chemical properties the results indicated the presence of significant differences (P ≤ 0.05) in the percentage of protein, moisture, fat and ash, and therefore our results showed that the use of nano-selenium and vitamin E led to the improvement of most of the biochemical and immunological properties of blood, in addition to To improve the physical and chemical properties of broiler carcasses.

This study was conducted in (Samarra Poultry Commercial Project), located in Samarra, 130 km north Baghdad, in a closed hall of Turkish origin, containing 53,000 Lumen Brown laying hens, 34 weeks of age, raised in cages, each of which accommodates 10 birds and distributed into five lines, each is mixed with five floors. Very symmetrical, including ten. In order to know the effect of the location of chickens within floors. Breeding in closed halls lines on productive performance, quality traits of eggs and some traits blood physiology: The results showed the following. Significantly decreased egg production in birds bred within the first (ground) floor, and this was accompanied by a significant decrease in egg production. Deterioration in the efficiency of feed conversion.. The location of the chickens within the breeding floors had no significant effect on most of the qualitative characteristics of eggs. The chickens raised on the third floor showed the best parameters of red blood cells, with a stabilization of the case. There were no significant differences in the numbers of white blood cells.