he present work was conducted to study the effect of replacement corn silage (CS) by orange waste silage (OR) improved the performance of Barki lambs using one of the following rations: R1: 50% concentrate feed mixture (CFM) + 40% corn silage (CS) + 10% rice straw (RS) (control). R2: 50% CFM + 20% CS + 20% orange waste silage (OS) + 10% RS and R3: 50% CFM + 40% OS + 10% RS. Two experimental trials were conducted: Results showed the silages had good smell and were free from any signs of molds in all groups. Digestibility trial was conducted using nine mature local Barki breed rams were divided in three groups (3 animals each) weighting with average body weight 57 kg ± 1.5 kg and 3 years old. R3 recorded (P<0.05) the highest digestibility coefficients for all nutrients and nutritive value than others and the results showed a significant improvement (P<0.05) in digestibility coefficients of NDF, ADF and cellulose in R3 than others. Results showed insignificant differences (P>0.05) among the three tested groups in all blood parameters. Eighteen Barki lambs with average body weight 21.00 ± 0.20 kg/head were used. Lambs were divided into three groups (6 animals each) and fed the three respective rations with the same regime of feeding the experimental lasted for month. R3 recorded the highest value of average daily gain compared with R2 and R1. Also, R3 recorded the best value of feed conversion (6.24) followed by the R2 (6.52) than the control (7.03). It was concluded that corn silage by orange waste silage to rations of growing Barki lambs could improve their performance especially replacement of 100% corn silage by orange waste silage (R3).

his experiment was conducted to study the effect of biological and chemical treatments of olive trees by-products on chemical composition, degradability, cell wall constituents, digestibility and nutritive value and its feeding effect on productive performance of growing sheep. Eighteen (½ Finnish Landrace × ½ Rahmani) lambs with average body weight 18.00±0.40 kg and 4 months old were used in this study for 120 days. Lambs were distributed into three similar groups (6 lambs each) and randomly assigned to three experimental rations. The three respective rations composed of concentrate feed mixture (CFM) + olive trees by-products, the control ration (R1) contained untreated olive tree by-products; (R2) treated olive trees byproducts with EM1 and (R3) treated olive trees by-products with El-mofeed. The digestibility and nutritive values of experimental rations were determined using nine adult Ossimi rams. Rumen liquor and blood samples were collected at the end of collection period. The results showed that nutrient digestibility and feeding values (TDN and DCP) were higher (P<0.05) for rations containing treated olive trees by-products than control. The highest values of TDN and DCP were observed for R2. Digestibility of cell wall constituents (NDF, ADF, cellulose and hemicellulose) were improved by treatments. Concentrations of rumen parameters (NH 3-N and TVFA's) were significantly (P<0.05) increased by treatments. However, no significant (P>0.05) differences were found in blood constituents (total protein, albumin, globulin, GOT, GPT and urea) among the different experimental groups. Blood sereum constituents were generally normal in all experimental groups. Growth performance with respect to total body weight gain and average daily gain (ADG) were improved by biological and chemical treatments. The same trend was observed for feed conversion and economic efficiency and the best values were recoded with R2. It was concluded that inclusion of biologically treated olive trees by-products to rations of growing (½ Finnish Landrace × ½ Rahmani) lambs could improve their performance especially treatment of olive trees by-products.

his study was conducted to evaluate changes in productive performance, in terms of milk yield and its composition, of lactating Damascus goats, resulted of feeding three rations. The three respective rations composed of concentrate feed mixture (CFM) + olive trees byproducts, the control ration (R1) contained untreated olive tree by-products; (R2) treated olive trees by-products with EM1 (product of EMRO Organization in Japan) and (R3) treated olive trees byproducts with El-mofeed. Eighteen lactating Damascus goats (within three seasons of lactation) aged 24-30 months, weighed 37.20±0.2 kg and were in 2 nd-3 rd season of lactation were distributed according to their live body weight and milk production into three similar groups, (6 goats each). The experiment lasted for 120 days after the does weaned their offspring. Milk yield was significantly (P<0.05) higher with groups treated olive trees by-products with EM1 and El-mofeed than untreated ones. Averages of DM, TDN and DCP intakes were the highest with R2, compared with the other tested rations. Feed conversion value expressed as (kg TDN/ kg milk) was practically similar for both R2 and R3 rations being lower than that of the R1 rations. The feed conversion values expressed as (g DCP/ kg milk) recorded the best values being 76.03, 83.95 and 96.98 g/kg milk for R2, R3 and R1, respectively. The results of blood serum parameters showed insignificantly (P>0.05) values of total protein, albumin and globulin, cholesterol, triglyceride, total antioxidant capacity and urea concentrations. It could be concluded that biological treatments (EM1) and chemical treatments (Elmofeed) to rations of lactating Damascus goats improved milk yield, milk composition and feed conversion.

he present work was conducted to study the effect of replacement corn silage (CS) by orange waste silage (OR) milk yield and milk composition, feed efficiency and some blood serum parameters. Eighteen dairy lactating Damascus goats, aged 3 -4 years, weighed 30.60±0.2 kg and were in 2 nd -3 rd season of lactation were divided randomly to three similar groups (6 goats each) to receive the experimental rations those contained: R1: 50% concentrate feed mixture (CFM) + 40% corn silage (CS) + 10% rice straw (RS) (control). R2: 50% CFM + 20% CS + 20% orange waste silage (OS) + 10% RS and R3: 50% CFM + 40% OS + 10% RS. The experimental lasted for 120 days showed significant (P<0.05) fermentation characteristics of all silages during the ensiling period non-significant differences (P>0.05) were found among the three tested groups in all blood parameters but significantly (P<0.05) total antioxidants capacity in all rations. Averages daily milk yield were (1170.00g) for R3 compared (1110.90g) for R2, while (1090.80g) for R1. The same trend was noticed for the improvement in economic evaluation as result replacement corn silage by orange waste silage. It was concluded that replacement corn silage by orange waste silage to rations of lactating Damascus goats could improve their performance especially replacement of 100% corn silage by orange waste silage (R3) and without any adverse effect on productive performance and health.