الفهرس 
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Abstract
This present work was performed to study the effect of some medical plants as growth promotor and niminal tonic on sheep. The evaluation of these plants was depended on estimation and recording the monthly body gain, and growth rate, examination of some selected ruminal juice parameters, analysis of some biochemical items, determination of some haemogram as well as their effect on the meat quality.
Sixteen balady lamb of about 5 months old were used in this experiment. The animals were divided into equal four groups of average body weight about 23-30 kg. These groups were divided according to the fed intake as follows:
Group I: Control was fed on ration without any medical plants additive. Group 2: Was fed on ration containing 5 gm Trigonella Faenum ihea/day. Group 3: Was fed on ration containing 5 gin Biotonic /head/day.
Group 4: Was fed on ration containing 5 gm lepidum sativum /head/day.
Rumen and blood samples were taken monthly as well as recording of body weight. Rumenal juice were taken before and after 2, 4, 6 hours of feeding. While blood samples were taken 2 hours post feeding.
Results could be summarized as follows:
I- Body weight gain: It was affected (P < 0.05) by using different medical plants. While the highest body gain was observed in group 4, followed by group 3, then group 2 compared by control group 1 the monthly body gain in these groups were 5.21, 5.11, 4.96 and 4.73 kg respectively. 2-Rumen pH: There were significantly different (P< 0.05) with various
time of sampling.
3-Ruminal ammonia nitrogen: There were insignificantly different with different feed additives. But there are highly significant changes were observed with the time of taken a samples. The highest values was recorded in control group.
3- Ruminal TVFA: There was insignificant change between additives and control group. The highest significant value obtained in the 4th group after 2 hours of feeding. (25.10 ± 1.15 m.equ/d1).
4-Protozoal count: was significant changed with the time and no significant change between in control group compared by different medical plant additives groups.
5-Serum total proteins, albumin and globulines: were significant increase with months but no significant changes were observed due to medical plants.
6-Serum Calcium: was highly significant changes in months while significant increase in group 4 (8.04 ± 0.39 mg/dl) compared with other first 3 groups 7.5 ± 0.39, 7.39 ± 0.49 and 7.11 ± 0.47 mg/dl.), respectively.
7-Senim inorganic phosphorus: was highly significant increase in 4th group (6.56 ± 0.1 mg/dl) compared with control group (4.33 ± 0.43 mg/di).
8-Serum magnesium: was no significant changes with both additives and months.
9-Serum total cholesterol: was significant higher in 4th group and reach to (190.64 ± 8.61 mg/dl) compared with the other groups.
10-Blood glucose: was significant changes at (P < 0.05) between group 2 (72.44 ± 3.45 mg/dl) and other groups 1,3 and 4. It were 56.5 ± 8.61, 67.17 ± 4.57 and 65.15 ± 2.19 mg/di). 11-Serum creatinin: was significant higher (P< 0.05) in group 2 (2,04±0.32 mg/dl) compared with group 3 and 4 it was (1.7 ± 0.25 and 1.53 ± 0.14 ing/d1, respectively.
12-Serum urea: was insignificant change between the all groups.
13-Serum growth hormone: was significant higher in group 2 (0.46 ± 0.1 mg/d1.) compared with control group (1) (0.28 ± 0.05 mg/dl) while in 3rd and 4.03. group it was (0.33 ± 0.07 and 0.29 & 0.08 ng/dl), respectively.
14-Red blood cells and packed cell volume were insignificant changed with relation to months and additives.
15-White blood cells: was highly significant with relation to months while to 4th group showed significant increase in count compared with the group 3.
16-Blood hemoglobin: was significant different between months while the highest concentration obtained within group 2(9.54 ± 0.55 mg/di) compare with control group (8.91 ± 0.46 gm/d1).
17-Carcass quality: The sheep in group 2 had highest percentage of lean meat (63.18%) in their carcasses followed by sheep in group 3,4 and control group I (55.99%, 55.56% and 51.42%, respectively) The highest fat % in group was 29.84% while the lowest % obtained within group 2 (19.44%).
from the previous results we can concluded that:
I- It is possible to use the trigenella faenum, lepidium sativurn and Biotonic as growth promotors.
2-The best one of them on carcass quality is Trigenella faenum because it gives high percentage of lean meat compared with fat and hone comparing with other medical plants.
3-Further studies are recommended to show the fed effect of these plants with different species and ages.