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Objective: The present study aimed to investigate the effect of Moringa oleifera leaves (MOL) on blood hematology, lipid profile and immunity status of growing rabbits. Methods: A total of 120, unsexed Alexandria line weaned rabbits, at 4 weeks of age were randomly divided into four groups (30 rabbits each). The first group was fed the control diet and the other groups (2-4) were fed the basal diet supplemented with 10, 20 or 30% MOL for 5 weeks of experimental period. Results: Data revealed that dietary supplementation with 20% MOL recorded the highest live body weight and increased hemoglobin and packed cell volume significantly at 9 weeks of age compared to other groups. Increasing Moringa levels resulted in a significant increase in white blood cells, lymphocytes, globulin and high density lipoprotein, total antioxidant capacity, Immunoglobulin G and M levels compared to control, but, total lipids, cholesterol, malondialdehyde and liver glycogen values decreased significantly. With 20% MOL thymus histology showed an outer cortex of small lymphocytes, heavily-stained densely-packed lymphocytes surrounding the inner marrow clear pale medulla in contrast with other groups. Conclusion: It can be concluded that 20% Moringa leaves may exert beneficial effects on lipid, antioxidant and immunity statuses properties of growing rabbits.

This study was carried out to assess the effect of Boron supplementation on male rabbit's reproductive performance. A total of 20 V. Line (V.L) adult rabbit bucks were divided into four equal experimental groups (5 bucks for each). Groups 2, 3 and 4 were fed rations supplemented with 17.5, 35 and 70 mg boron/kg feed in the form of boric acid (100, 200 and 400 mg boric acid, respectively) over 8 weeks. The first group was served as a control group. Results obtained by the Boron groups revealed that adding Boron to rabbit bucks rations at any tested doses resulted in a non-significant increase in the ejaculate volume of male rabbit by approximately 25% above the control group. Adding Boron at any dose exhibited a significant increase (p#0.01) in sperm concentration, total sperm output, sperm motility, live sperm and normal sperm compared to the control group and the high Boron dose had the highest effect on previous measurements compared to the low and medium Boron doses. Opposite trend was shown in the reaction time (libido) and seminal plasma fructose concentration which showed a significant decrease in these parameters in the Boron treated groups compared to the control. Plasma total protein, glucose, total lipids and triglycerides concentration were boosted in the Boron groups compared to the control (p#0.01) for glucose and triglycerides measurements. On the contrary, treated male rabbits with Boron at any tested doses resulted in a significant reduction in plasma cholesterol concentration. Blood and seminal plasma AST and ALT enzymes activities showed a tendency to decrease by Boron treatments compared to the control group. Treating bucks by different Boron doses resulted in a significant increase (p#0.01) in Total Antioxidant Capacity (TAC) to reach 110, 128 and 163% of blood plasma and 114, 121 and 122% of seminal plasma compared to the control value. On the other side, adding Boron to bucks rations did not affect the activity of seminal plasma alkaline phosphatase enzyme. Blood testosterone hormone had a tendency to increase in the Boron groups compared to the control group but this increase was not significant. It could be concluded that feeding rabbit bucks on rations containing the studied Boron doses results in a significant improvement in semen quality characteristics and had a positive effect on their physiological status.

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This paper was conducted to monitor the effect of mixed essential oils (AROMIX  ) as phytogenic extract herbs administration in drinking water on growth performance, hematological, biochemical, immunological statuses and carcass traits of broiler chickens. A total number of 240 unsexed broiler chicks (Cobb-500) strain, were randomly divided to four equal groups, 60 chicks each at seven days of age. The first group drank tap water (control), the second, third and fourth group were drank the same water, adding 1 ml AROMIX  per 5, 10 and 15 liter tap water, respectively for 5 week of age. It was cleared from the results that there was a significant improve in feed conversion ratio, red and white blood cell counts, total protein, albumin, globulin, calcium, inorganic phosphorus and a relative reduction in the liver enzymes but in the normal range. However, it was observed that mix essential oils have no significant impact on carcass organs. High levels of the vital parameters, low levels of hepatic enzymes showed that birds health was good and relative improvement in immune system. The relative improvement of the absorption of minerals such as calcium and inorganic phosphorus to the positive role of essential oils. Administration in drank water was occasion, a regular activity of hepatic enzymes which can evidence safety and hepato-protective nature of these oils. Therefore, it is cleared from the results that the addition of these extract herbs in drinking water enhances the health meat, performance and physiological status of broiler chicks, which helps to obtain healthy meat and suitable for human consumption.

The objective of this work was to evaluate the pomegranate seeds powder (PSP) as an effective antioxidant in growing rabbit's diets to alleviate the adverse effects of organochlorine pesticides residues (OCPs) on growth performance, antioxidant status and physiological parameters of growing rabbits. A total of 120 unsexed weaned V-Line male rabbits (4 weeks of age) were assigned at random to five experimental groups. The control group was fed a diet free of PSP. The negative control was fed a diet free of PSP and OCPs, while the other empirical groups were fed the same diet supplemented with 500, 750 and 1000 g of PSP/100 kg diet. The results indicated that PSP contained content of vitamin C and vitamin E; 3.13 and 1.45 mg/100g, respectively. The content of total phenols was 0.27% and total flavonoids were 0.21 %. The accumulation of OCPs was concentrated in the rabbit`s liver, followed by the muscle. The control diet contaminated with Alpha Benzene hexachloride (αBHC), Delta Benzene hexachloride (∆BHC), dildren and methoxychlor values. Dietary supplementation of PSP at levels of 750 and 1000 g tended to improve average daily gain and feed conversion ratio compared to the control group. Rabbits fed diet containing 1000g PSP had the lowest mortality %. Edible giblets were significantly increased in the treated groups. The values of Hemoglobin, Packed cell volume, White Blood Cell, lymphocyte, total protein, globulin, higher density lipoprotein (HDL), Total antioxidant capacity (TAC) and glutathione peroxidase (GPx) were improved, but plasma low density lipoprotein (LDL) and total lipids levels were decreased in the treated groups. A significant decrease of plasma and liver malondialdehyde (MDA) level and significant increase in liver (GPx) and catalase (CAT) were observed in rabbits fed diets supplemented with PSP groups. Conclusively, dietary pomegranate seed powder supplementation improved growth performance and enhanced the antioxidant status. So it eliminated the adverse effects of oxidative stress induced by organochlorine pesticides of growing rabbits diets.

This study was conducted at the Poultry Research Centre, Faculty of Agriculture, Alexandria University, Egypt, during the summer season (July and August months) 2018. For five weeks, until 63 d of age, a total number of 140 weaned V line rabbits were randomly distributed into seven groups of 20 rabbits each. Rabbits of groups 2 and 3 were fed basal diet plus copper sulphate (100 and 200 mg Cu-Sul/kg, respectively). Groups 4 and 5 were fed basal diet plus copper methionine (100 and 200 mg Cu-Meth/kg, respectively) and groups 6 and 7 were fed basal diet plus copper glycine (100 and 200 mg Cu-Gly/kg, respectively), while the first group was fed basal diet only as control. Rabbits fed diet supplemented with higher level (200 mg/kg) of Cu-Meth or Cu-Gly chelates had significantly higher body weight and daily body weight gain (P<0.05) compared to those fed diets supplemented with both levels of Cu-Sul. Rabbits fed diets supplemented with Cu-Meth or Cu-Gly chelates had significantly increased (P<0.05) red blood cells, lymphocyte, high-density lipoprotein and Cu values in blood. Within the studied Cu sources, serum total lipids values of rabbits were significantly lower than in the control group. However, serum total antioxidant capacity, glutathione peroxidase and superoxide dismutase were higher by both organic chelates studied than other groups. In general, copper supplementation improves productive performance and physiological status under summer conditions.