The use of Treated Addar (Sorghum Sudanese) Grass as a Summer Animal Feed in Gadarif State

Abstract

The effect of feeding urea treated Addar grass hay (5%) and untreated Addar hay and sorghum straw (control) in stage"1", plus supplementation with molasses in stage "2" was studied in fifteen bull calves (12-18) month of age and . (112.5kg) average body weight Animals were fed in a changeover design in two experimental consecutive periods of 8 weeks duration in each stage and was separated by seven dry adaptation . periods in each case The result showed that the highest dry matter intake (DMI) (112.5kg/head/stage) was recorded with treated Addar with urea in stage 1 and when , supplementation with molasses in stage 2. The lowest DMI (87.2kg head/stage) were obtained on feeding sorghum straw in two stages. Generally, differences between diets contain of treated and untreated Addar in two stages were significant .((P<0.01 Crud protein intake (CPI) was highest (12.2kg/head/stage) in treated Addar with urea in stage 1 and stage 2. When supplementation with mall as and lowest (3.5/head/stage) on sorghum straw when untreated with urea in stage 1 2 and when supplemented with males in stage 2, there were .differences (P<0.01) between diets were also significant The highest body weight (95.5/head/stage) was recorded when urea treated Addar stage (1) and when supplementation with molasses in stage (2) and lowest (80.4 main group/stages) when offered the untreated Addar only stage (1) or with molasses in stage (2). Variation between treatment were significant (P<0.01) in experiment (2). The dry matter degradability study of the tested three diets (treated Addar, untreated Addar and sorghum straw stage 1 and with molasses in (stage 2) was carried out using fistulated bull equipped with rumen cannula. The effective degradability (%) at (0.05 rumen out flow rate) of the tested diets of treated Addar, untreated Addar and sorghum straw were (45.4,52.7,44.6) respectively) untreated Addar showed high dry matter degradation. Addition of molasses to Addar resulted in .increased dry matter degradability . There were significant (P<0.01) differences between the three diets. In experiment (3) of this study (12) un castrated Sudanese lambs (Ashgur) were used Lambs ranged in age between (7-8) months and live body weight averaged (19kg). The apparent digestibility (%) of DM, OM and C.P for three diets treated Addar, untreated Addar and sorghum straw stage (1) were (58.7, 49.2 and 61.96; 50.8, .(55.4 and 34.5; 56.0, 58.8 and – 34.9 respectively 3 ‫‪supplemented with decreased the apparent digestibility‬‬ ‫‪sorghum‬‬ ‫‪(%) of DM, OM and C.P for tow diets except‬‬ ‫6.85 ,1.75 ;7.61 ‪straw (54.1, 35.8 and 39.1; 44.1, 45.0 and‬‬ ‫)50.0<‪and 49.5 respectively). There were NO significant (P‬‬ ‫‪.differences between treatment and stages‬‬