This experiment was conducted at poultry field in the Agriculture College-Al-Muthana University during the period from 15/10 /2015 until 22/ 11/ 2015. It was used 240 of broiler chicks Ross 308, chicks were randomly distributed to four experimental treatments, where added the aqueous extract of thyme leaves at levels (0, 2, 4, 6 ml/L) drinking water. All of the histological traits were studied such as the villus height, the crypts depth , the percentage of the villus height to the crypts depth and immunological traits are both the immunity directed against Newcastle disease and the test of the relative hypersensitivity in thewattles and relative weight and the Fabricia gland index and the blood traits are both the number of red and white blood cells and volume of the blood packing cells (Haematocrit) and Hemoglobin concentration, and biochemical traits, such as concentration of glucose, cholesterol, triglyceride, globulin, albumin, and total protein. The results showed a significant improvement (P≤0.05) for the treatment of the aqueous extract of high concentration thyme leaves (6 ml/L drinking water) in all studied traits compared to all study treatment Keywords | Aqueous extract, Thymus vulgaris, Small intestine tissue, Immunological, Blood traits, Broiler chicks. Jassim Kassim menati 1 , nihad abdul-lateef ali 2* , hassan saad abidelhuseen 3

Laurel leaves characterized with interesting antioxidant effects, which have often used to improve the immunity with positive consequences on growth and performance This study was conducted to assess the effect of adding crushed laurel leaves to the diet on the productive traits of broiler chickens. A total of 180 broiler chickens, were randomly assigned to four dietary treatments, with a rate of 45 birds per treatment; each treatment consisted of three replicates. The first treatment, or control, was generated without adding laurel leaves to the diet, second, third, and fourth treatments were generated by adding laurel leaves with amounts of 1, 2, and 3 g kg-1 feed, respectively. Nine productive traits were evaluated in this study, including the average of live body weight, weight gain, feed consumption, feed conversion ratio, percentage of mortality, productive index, length of the villus, depth of crypts, and villus length/crypts length ratio. Results indicated that the addition of laurel leaves led to a significant improvement in all productive traits, signifying highly essential participation of laurel leaves to enhance growth and performance. In conclusion, it can be stated that adding 3 g kg-1 of crushed laurel leaves to the diet can improve the productive traits of broiler chickens.

H igh levels of production and efficient feed conversion are the need of the modern poultry industry, which to a certain extent could be achieved by the use of specific feed additives. Antibiotic feed additives as growth promoters have long been supplemented to poultry feed to stabilize the intestine microbialflora, improve the general performances and prevent some specific intestinal pathology (Hassan et al., 2010). However, due to the emergence of microbes resistant to antibiotics which are used to treat human and animal infections, the European Commission (EC) decided to phase out, and ultimately ban (1 January 2006), the marketing and use of antibiotics as growth promoters in feed (EC Regulation No.1831/2003. Consumer pressure is pushing the poultry industry to rear birds without antibiotics (Castanon, 2007). Such a situation has compelled the researchers to explore the utility of other non-therapeutic alternatives like organic acids, enzymes, probiotics, prebiotics, herbs, essential oils and immune stimulants as feed additives in poultry production. The European Union allowed the use of organic acids and their salts in poultry production because these are generally considered safe (Adil et al., 2010). The use of organic acids has been reported to protect the young chicks by competitive exclusion (Mansoub et al., 2011), enhancement of nutrient research Article Abstract | An experiment was conducted to study the effect of graded levels of butyric acid (butyrate) on performance, gastrointestinal tract health and carcass characteristics in young broiler chickens. Control starter (0-3 wk.) and finisher (4-6wk.) diets were formulated to contain 2,900 kcal ME/kg and 23% CP, and 3,100 kcal ME/kg and 21% CP, respectively. Subsequently, four groups of diets were formulated as following (T1: Positive Control contain 0.05% antibiotic maudramycin), (T2 : Negative Control without maudramycin), (T3 : T2 + 0.3% butyric acid) and (T4 : T2 + 0.6% butyric acid). Each diet was fed at random to 4 replicates of 30 chicks each throughout the experimental period (0-6wk). The results showed that 0.3% and 0.6% butyrate in the diet was improvement the body weights more than other treatments, and superior for feed conversion ratio. Feed intake were not influenced by the dietary treatments. A reduction in pH of the upper GI tract (crop, proventiculus and gizzard) was observed by inclusion of butyrate in the diets of broilers compared to either control or antibiotic-fed group. Butyrate at 0.6% was more effective in reducing the pH than 0.3%. Within the lower GI tract, 0.6% butyrate was effective in lowering pH in the jejunum, but no effect was found in either the duodenum or ileum. Dressing percentage was higher in all the butyrate treatment groups compared to the positive control or negative group also Increasing of histomorphological response. The best rate of villi length was recorded in the fourth and third treatments compared to the lowest length of treatment in the second and first treatment. From these findings, it is concluded th...

Green to investigate the effect of adding different levels of the Nutrient powder to the ration in some physiological characteristics of the blood of broiler chickens Ross 308. Use the 180b roiler chicks Ross 308 day-old were randomly assigned to four treatments (by 3 replicates per treatment 15 chicks per replicate), and treatments were as follows: first treatment (control) without adding Nutrient powder to the ration, add Nutrient powder by 5 g / kg feed (second treatment), add Nutrient powder by 7.5 g / kg feed (Third treatment) and add Nutrient powder by 10 g / kg feed (four treatment). Blood traits included in this study were : Red blood cells counts, hematocrit, hemoglobin concentration, Mean Corpuscular Volume (MCV), Mean Corpuscular Hemoglobin (MCH) and Mean Corpuscular Hemoglobin Concentration (MCHC). The results indicated no significant differences between the experience of all treatments in the qualities that have been studied except recipe Mean Corpuscular Volume (MCV) and Mean Corpuscular Hemoglobin (MCH), where outperformed Third-treatment when the fifth week was significantly (P <0.05) compared to other treatments. KEYWORDS Nutrient powder, physiological characteristics of the blood, broiler chickens.

This experiment was conducted in the poultry field of the Department of Animal Production College of Agriculture Al-Qasim Green University for” the period 1/10 /2021 to 4/11/2021 The study aimed to add different levels of Chenopodium quinoa seed “powder to the diet and vitamin C to the drinking water to know the best levels of quinoa seed powder to the diet that can be used in poultry diets. In the experiment 225 unsexed broiler chicks Ross 308 were used distributed randomly to 15 cages with 5 experimental treatments for “each treatment” of “45 birds and each treatment included three replicates for each replicate of 15 birds. The experimental treatments were as follows The first treatment” the “control treatment” basic diet free of any addition whether in feed or drinking water. The second treatment add 12 g of quinoa seeds/kg of feed the third treatment add 14 g of quinoa seeds/kg of feed the fourth treatment add 16 g of quinoa seeds/kg of feed the fifth treatment add 300 “mg of vitamin C/L of drinking water. The most important results “of the” study can be summarized which is a significantly improvement (“P≤0.09”) for the third fourth and fifth” treatments in “the” average live body weight “in the fifth week and the total weight” gain “compared” to “the first treatment. As for feed consumption “there were no significant differences between all treatments while the third fourth and fifth treatments recorded the best cumulative food conversion ratio with a significant difference (P≤0.09) compared to the first treatment” and no deaths were recorded among birds during the experiment period