This work was aimed to study the effect of zeolite (Clinoptiolite) addition on productive performance and blood constituents of broiler chickens drank saline well water (3398 ppm total dissolved solids, TDS). A total number of 120 broiler chicks one dayold unsexed Ross 308 (body weight of 40.09 g ± 0.11). Chicks were randomly separated to four equal treatments (30 chicks of each) which in turn separated to three equal replicates (10 chicks each). The 1 st treatment (T1), chicks drank tap water containing 265 ppm TDS with basal diet. The 2 nd treatment (T2), chicks drank saline well water containing 3398 ppm TDS with basal diet. The 3 rd treatment (T3) and the 4 th treatment (T4) chicks drank saline well water containing 3398 ppm TDS with basal diet + 3 % zeolite and + 6 % zeolite, respectively. Final body weight, total weight gain and feed conversion of broiler chickens were significantly enhanced in control group (T1), T3 and T4 as compared with the chickens in T2. On the other hand, the total feed intake significantly decreased in the chickens of T4 as compared with T1 and T2, while, the total water intake significantly increased in T2 compared with other treatments. Carcass weight percentage was significantly increased in the chickens of T1, T3 and T4 treatments as compared to T2. Red blood cells, hemoglobin and packed cell volume were increased (P<0.05) in the chickens of T3 when compared to T2. Albumin level was significantly increased in T4 compared with other treatments. Creatinine, Alanine and aspartic transaminase concentrations were increased (P<0.05) in the chickens drank saline well water (T2) as compared to other treatments. On the other hand, glucose and cholesterol levels significantly decreased in the chickens of T2 as compared to T1, T3 and T4. In conclusion, adding 3 % zeolite in broiler chickens diets might enhance the productive performance and some hemato-biochemical parameters under drinking saline well water conditions.

This experiment was conducted to evaluate the effect of different levels of Nigella Sativa meal (NSM) on productive performance and some hematological parameters of laying hens under hot conditions. A total number of 120 laying hens (34 weeks old -Commercial Browne Lohmann LSL) and body weight of 1996.90±18.75 g were used in this study. Chickens were randomly divided into four equal treatments (30 chickens of each). Each treatment was randomly divided into 3 equal replicates (10 chickens of each).The 1 st treatment, chickens fed basal diet and considered as control group (C). The 2 nd , 3 rd and 4 th treatments, chickens were fed diets supplemented with 5, 10 and 15 % NSM, respectively). The results showed that egg weight, egg number and feed conversion were improved (P<0.05) in the laying hens fed 10 and 15 % NSM compared with other groups. However, egg shell thickness was increased (P<0.05) in the hens fed 5, 10 and 15 % NSM compared to control group. Red blood cells and hemoglobin concentration were increased (P<0.05) in the hens fed high level of NSM (15 %) compared to hens in control group. Adding NSM at level 15 % led to significantly decreased in serum total protein, albumin, globulin, glucose and cholesterol when compared with control group. While, creatinine level was significantly increased at level 5 % of NSM compared with other levels of NSM and control group. Using NSM by rate 5, 10 and 15 % in the chicken diets led to a decrease in the cost of feed and this in turn contributed to the improvement of net income/hen. In conclusion, under hot conditions, use Nigella Sativa meal up to level 15 % as a source of alternative feed resources enhancement the productive performance and physiological responses of laying hens.

This work aimed to study the effects of Nano-selenium (Nano-Se) supplementation and in-ovo injection on the growth performance and physiological responses of post-hatch chicks reared under hot conditions. A total number of 60 laying hens and 8 cocks Doki-4 strain (74 weeks old and average body weight of female and male 1663.75±34.9 g and 2383.33±147.0, respectively) were randomly divide into two equal groups (30 hens and 4 cocks of each). The first group considered as parents of treatment 1 (Tr1) and treatment 2 (Tr2). The second group considered as parents of treatment 3 (Tr3) and treatment 4 (Tr4). After four weeks of start experiment, 300 fertile eggs collected from two groups (150 eggs / group), the fertile eggs and post-hatch chicks treated as following; Tr1, parents and post-hatch chicks fed on basal diet plus in-ovo injection with 0.5 ml saline solution /egg (control treatment). Tr2, parents and post-hatch chicks fed on basal diet plus in-ovo injection with 0.5 ml saline solution (containing 0.2 µg Nano -Se) /egg. Tr3, parents fed with basal diet supplemented with 0.3 mg Nano -Se /kg feed and post-hatch chicks fed on basal diet plus in-ovo injection with 0.5 ml saline solution (containing 0.2 µg Nano -Se)/ egg. Tr4, parents and post-hatch chicks fed on basal diet supplemented with 0.3 mg Nano -Se /kg feed plus in-ovo injection with 0.5 ml saline solution (containing 0.2 µg Nano -Se) / egg. The results showed that, hemoglobin and mean corpuscular volume significantly (P<0.05) increased in Tr2 and Tr3 in compared to Tr1 (control). Heterophils / lymphocyte ratio and hatchability % significantly (P<0.05) improved in Tr3 and Tr4 in compared to Tr1. Immunoglobulin M significantly (P<0.05) increased in Tr2 and Tr3 in compared to Tr1 and Tr4, rectal temperature significantly (P<0.05) decreased in Tr4 in compared with Tr1, from one day to 6 weeks of age from hatch, Tr3 and Tr4 show better performance in body weight gain, feed intake and feed conversion when compared with Tr1 and Tr2. In conclusion, supplementation the diets of parents and post-hatch chicks with 0.3 mg Nano-Se / kg feed plus in-ovo injection with 0.2 µg Nano-Se /egg enhance growth performance, hematological parameters and immunological responses of post-hatch chicks reared under hot conditions.

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This work aimed to study the effect of using vitamin C and alternation of drinking saline well water with tap water on hematological parameters, biochemical blood constituents, hormonal profile and productive performance of laying hens drinking saline well water under South Sinai conditions. A total number of 120 Commercial Browne Lohmann LSL laying hens (34 weeks old and average body weight of 1996.9±18.7 g) were randomly divided into four equal treatments (30 hens of each). The 1 st treatment (Tr1), hens drank tap water (containing 265 ppm TDS) and fed basal diet (considered as control). The 2 nd treatment (Tr2), hens drank saline well water (containing 3398 ppm TDS) and fed basal diet. The 3 rd treatment (Tr3), hens drank saline well water and fed diet containing 2 % vitamin C (commercial product containing 20 % vitamin C). The 4 th treatment (Tr4), hens drank saline well water alternate weekly with drank fresh tap water until the end of experiment (hens drank saline well water every other week) and fed basal diet. The results showed that red blood cells and hemoglobin level were significantly decreased, while, mean corpuscular volume and Heterophils/Lymphocytes ratio were significantly increased in Tr2 when compared with Tr1. Glucose level significantly decreased in Tr2 compared with other treatments. Cholesterol level significantly decreased in Tr3 when compared with Tr2, Tri-iodothyronine hormone significantly decreases in the Tr2 when compared with Tr3 group. Progesterone level significantly increased in Tr4 when compared with Tr2. However, there are significant differences among treatments in final body weight, egg weight, egg number, egg mass, feed conversion ratio and mortality rate. In conclusion, laying hens alternated drank saline water with tap water every week or using vitamin C in feeds may alleviate the drastic effect of drinking saline well water on blood parameters and thus positively reflected on laying hen's performance.