This study was performed to determine the percentage of hatchability, post-hatch growth performance, and immune response of broiler subjected to in-ovo injection of some natural oils. A total of 360 eggs of ross broiler strain were obtained. Eggs were distributed into six groups: T1,Negative Control (No injection), T2, positive control (injected with 0.1 ml distilled water; T3 injected with 0.1ml of rosemary oil ; T4, injected with 0.1ml of black seed oil; T5 injected with 0.1 ml of olive oil, and T6, injected with 0.1 ml of almond oil. The newly hatched chicks were distributed into 6 groups of 4 replicates of 10 chick. Higher hatchability percentage was found in rosemary oil, followed by almond oil and olive oil –injected eggs. The final weights of birds that were hatched from rosemary oil, and black seed oil -injected groups were significantly (P < 0.05) higher than other experimental groups. Feed intake and feed conversion ratio were improved with in -ovo administration of rosemary oil and black seed oil. In addition, the level of blood cholesterol and blood glucose were decreased (p<0.05) in birds from all-natural oils-injected eggs. The level of IgM and IgG was significantly (p<0.05) increased in the serum of birds that were hatched from natural oils injected eggs. It could be concluded that in-ove injection of natural oils used in this study was promising to increase the hatchability percentage and improve the subsequent growth and immune responses of post hatched birds.
ABSTRACT:The present study was conducted at poultry laboratories, department of animal production, Agriculture College, Duhok University, Kurdistan region, Iraq, (2016). Three lines of quail (White, light brown and dark brown) and their crosses that resulted from diallel cross design; aged 8 weeks old were used. A total of 54 blood samples by about 5 ml, from both sexes within each genotype aged 8 weeks old, were collected directly after slaughtering and bleeding for 3 second. PVC %, hemoglobin (Hb), Hetrophyl (H), Lymphocyte (L), H/L ratio, total protein, globulin, albumen and cholesterol were studied. The results showed insignificant differences among genotypes and between sexes for both PVC and Hb, while H, L, H/L, total protein, globulin, albumen and cholesterol appeared high significant (p<0.01) differences among the nine studied genotypes. The effect of sex was significant (p<0.05) for H, L and cholesterol. Interaction between genotype and sex was just significant for albumen. There was a significant negative correlation between H/L ratio and globulin (-0.39). Dependence of H/L ratio on globulin, resulted in derives a prediction equation.
This experiment was conducted to investigate the efficacy of different levels of biotin on broilers ' performances, protein and fat apparent digestibility and carcass characteristics. The study was conducted at University of Duhok, College of agriculture, Animal House Complex. A total of 160-day-old Ross 308 randomly assigned to 4 treatments with four replicate pens per treatment and 10 birds each pen. Treatments were control diet without additive and three levels of biotins which are biotin 1, biotin 2 and biotin 3 at concentrations 1000, 1500 and 2000 mg/10L of drinking water respectively during the whole rising period. The results showed that different levels of biotin increased body weight gain (WG) and biotin2 and biotin 3 improved Feed conversion ratio (FCR) compared to control group at day 35. Adding different levels of biotin in drinking water had significantly higher protein digestibility over non-treated group. In conclusion, adding biotin to broiler water had positive effect on WG, FCR and protein digestibility.
n recent years, small poultry producers have been interested in finding alternatives for corn and soybean meal for a variety of reasons. Perceived health concerns related to genetically modified organism (GMO) status are the primary considerations behind this trend. Secondly, the recent high price of corn and soybean and their unavailability locally in the Pacific Northwest are other reasons to identify alternative feed ingredients. For these reasons, an experiment was performed to identify the feasibility of including locally grown alternative feed ingredients in a GMO free starter-grower turkey rations. The experiment compared the growth rates and feed conversions of broad breasted white turkeys fed either a corn based -soybean free and a wheat based (corn-soybean free) to a control (corn-soybean based) diets. Day old turkey poults were randomly assigned to one of the three diets. Body weights, feed conversion, and mortality were determined at two, four, six and, eight weeks of age. The final body weights of poults fed the control diet were significantly (P = 0.001) higher than those fed either the corn based-soybean free or wheat based (corn-soybean free) diets. Body weights of birds fed the corn based-soybean free and wheat based (corn-soybean free) diets, 3.1kg and 3.2kg, respectively were not different. Feed efficiency was not different among the three dietary treatments. Excluding soybean from the diets decreased growth rates in turkey poults but did not affect feed conversion.
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