Theipresentistudyiwasiconductedito iinvestigate effect of feeding tree fodder iCassava iori Prosopis and itheiri mixturei withi ammoniatediwheatistrawionigrowthiperformance, blood metabolic and economic efficiencyiof growingiBarkiilambs. Twenty ionei growingi male ilambsiof Barki,iaged abouti3 months and weighed iniaverage 12.18±0.17 kg were divided irandomlyi intoithreeisimilarigroups. Each group housed separatelyiinishaded pen. Lambs received ration in groups. Lambs iwere ifed itested irationsiaccordingitoiNRC (1985) inutrientirequirementiforigrowingisheepiasifollow, concentrateifeedimixture (CFM) 40% +

This work was carried out on Rahmani ewes to investigate the effect of some feeding schemes on productive performance as well as some rumen and blood parameters. Fifty pregnant ewes were divided into five equal groups and fed according to NRC (1985) allowances. Treatments tested were given 80% NRC of both total digestible nutrient (TDN) and crude protein (CP) (G1), 100% NRC of both TDN and CP (G2), 120% NRC of both TDN and CP (G3), 80% CP and 120% TDN (G4) and 120% NRC of CP and 80% TDN (G5). The animals were in the late pregnancy period and continued for 60 days of lambing (or weaning).The main results showed that daily feed intake during the late pregnancy period was lower than that consumed during the suckling period. The daily water consumption recorded the highest values with G1 (421.5 and 558.7 ml/kgw 0.75 for late pregnancy and suckling periods, respectively). Whereas the lowest values were recorded with G3 (324.2 and 450.6 ml/kgw 0.75 for late pregnancy and suckling periods, respectively). The NH3-N concentration post-feeding increased with increasing feeding level and /or dietary protein. Similarly, microbial protein values were higher with G3 and it's recorded the highest values at all times. Moreover, ruminal volatile fatty acids (VFA's) concentration at the 4 and 6 hrs were significantly higher in rumen of ewes fed 100% (G2) and high level of energy (G3 and G4) compared to G1 and G5 (low level of energy).Concentration of hemoglobin (Hb), hematocrit values (Hct), red blood cells (RBC's), mean cell hemoglobin concentration (MCHC), white blood cells (WBC's) and platelets in ewes serum were higher in G3 than the other groups. Also, ewes fed 80% NRC (G1) had significantly lower values of serum Urea-N, uric acid, cholesterol, calcium and ALT than these fed 120% NRC (G3). At the late pregnancy period, the concentration of creatinine, uric acid, cholesterol, triglyceride and activities of serum AST, ALT and ALP increased significantly than during the suckling period. On the contrary, serum glucose concentration was highest in the suckling period than in the late pregnancy period. The highest value of live body weight at lambing was recorded with G3 then G2 followed by G4 and G5 and lastly G1. Also, LBW of ewes at the weaning was lower in G1 than in other groups. Ewes given 100% NRC (G3) were lower in still birth cases than these fed the other rations. The total number of still birth lambs were recorded the highest value with G1 and G5 and the lowest values were detected with G2. Thus, output measured as kilograms lambs produced per ewe improved significantly due to the both treatment G2 and G3. Accordingly, the economic efficiency was higher with G2 compared the other groups.

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This investigation research was performed to compare between Barki lambs and Barki kids in feed intake, nutritive value, digestibility, body weight gain, and some rumen and blood parameters when fed three different tanniniferous shrubs. The forage concentrate ratio in all groups was 60%:40%. The forages were Acacia saligna, Prosopis juliflora and Cassava (G1, G2, and G3 respectively). The results indicated that the total DM intake (g/h/d) was decreased in G2 compared with G1 and G3. The digestibility of dry matter (DM), crude protein (CP) and crude fiber (CF) were increased by goats compared with sheep, while nitrogen utilization was nearly similar between both species and the highest value was recorded with G3 vs. G1 or G2. The highest concentration of rumen fluid NH3-N and TVFA's were recorded with goats vs. sheep. Moreover, animals fed Acacia showed the lowest value in NH3-N and TVFA's than those fed Prosopis or Cassava. Feed conversion (g CP/kg gain) tended to decrease with goats vs. sheep. The measured blood parameters show slight differences due to the source of shrubs, where all levels were within the normal ranges. So, tanniniferous shrubs could have used without any adverse effect on intake, water utilization and growth performance which improves the economic return of raising sheep and goats under semi-desert conditions of the North-Western Coast in Egypt. Ke ywo rds Acacia salignaBlood parameters Cassava Feed utilization Prosopis juliflora Rumen W. M. A. Sadek et al. (2020) / Comparative study of tanniniferous shrubs as an alternative source of feed on performance of sheep vs. goats under semi-desert conditions of the north western-coast of Egypt 2 and unpalatable plant species represent approximately 70% of the total coverage (El Shaer, 2003). Several attempts made towards utilization of such low value or unpalatable halophytic plants through proper processing methods to improve their palatability and nutritional utilization. Under semi-arid area conditions, small ruminants fed on trees and shrubs such as Cassava and Acacia to solve the attendant problems of low productivity (El Shaer 2010 andEissa et al., 2015a). However, such trees and shrubs foliage are generally rich in anti-nutritional factors, particularly tannins (Makkar, 2003). Feeding a mixture of these fodder shrubs could minimize or overcome the problems of palatability and toxic effects (

Twenty eight female Zaraibi goats in 2 nd , 3 rd and 4 th season of lactation with average body weight of 33.0 kg were divided randomly into 4 groups (7 does in each) to study the effect of substitution of berseem forage by triticale forage in diets of lactating Zaraibi goats on their performances for milk yield and composition. In addition, twelve Rahmani rams average body weight of 50 kg were used to evaluate the feeding value of tested diets. Half the crude protein (CP) requirements of lactating goats were covered from concentrate feed mixture (CFM) while other 50% of CP was covered from triticale forage in the first group (G1), mixture forage (50% triticale-50% berseem) in the second group (G2), mixture forage (70% triticale-30% berseem) in the third group (G3), and berseem forage in (G4). The obtained results showed that the dry matter (DM) percent of triticale was higher than berseem (16.50 vs. 13.98). Moreover, the ether extract (EE) and nitrogen free extract (NFE) were higher while CP and ash were lower in triticale forage than berseem. But, crude fiber (CF) was nearly similar in both forages. The daily dray mater intake (DMI) as g/ kg w 0.75 and body weight (BW) tended to increase with mixture forage G2 (99.10 and 4.07, respectively) compared with G3(98.75 and 4.06, respectively) and G4 (95.27 and 3.91, respectively) and G1 (91.79 and 3.77, respectively). Ammonia-N (NH3-N) level and pH values tended to decrease in the rumen of Rahmani sheep fed triticale forage (G1) compared with other forages (G2, G3, and G4). Rumen volatile fatty acids (TVFA's) concentrations as well as microbial protein (MP) were higher with 50% triticale -50% berseem than with other rations. The digestion coefficients of OM, CF and NFE were significantly improved with G2 and G3 compared with G1 and G4. The CP, DM and OM digestibility recorded the lowest values (P<0.05) with triticale forage. The total digestible nutrients (TDN) showed the higher estimates (P<0.05) with the mixture rations (G2 and G3), while digestible crude protein (DCP) was significantly higher with increasing berseem in the rations. Whereas, serum protein, albumin, globulin, urea-N and glucose did not significantly differed among the tested diets. Concerning milk production, the obtained data indicated that milk yield of Zaraibi goats was significantly (P<0.05) higher with mixture forage (1.350 kg/ h/ d) G2 and (1.310 kg/h/d) G3 compared with the other groups (1.230 and 1.260 for G1 and G4, respectively). The effect of experimental treatments on milk fat percentage was significant (P<0.05). While, other milk contain and milk quality parameters (such as pH value and acidity %) were not significant. Accordingly, it could be concluded that using mixture forage (triticale and berseem) in feeding Zaraibi goats has positive effect on feeding value, milk yield and milk composition as well as feed utilization efficiency. Triticale forage could be safety use in feeding Zaraibi goats as it is or mixed with berseem.