الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 84 |  |  |
| | | from | 84 | | |
Abstract
Results obtained could be summarized as follows:
(1) High levels of Gum Arabic (1.0 and 1.5%) in diets led to significantly increase digestibility coefficients of DM, CP, NFE, TDN and DCP, while digestibility coefficients of EE, GE and DE significantly reduced, but CF digestibility did not significantly affect.
(2) The components of plasma indicate that total protein and globulin significantly increased with increasing Gum Arabic level in diets, while albumin did not significantly affect.
(3) Plasma glucose, cholesterol and total lipids were significantly reduced (P<0.05 & P<0.001) by increasing the level of Gum Arabic in diets
(4) Crude protein, lactose and DM contents of milk were significantly increased by increasing the level of Gum Arabic in diets, while fat and ash contents of milk did not significantly influence.
(5) The milk yield significantly (P<0.001) increased by 3.5, 4.9 and 7.7 % in rabbit does fed 0.5, 1and 1.5% Gum Arabic of the diet, respectively, as compared with those fed a basal diet.
(6) Does weight gain at gestation significantly increased (P<0.001) with increasing dietary Gum Arabic supplementation.
(7) Daily feed intake of pregnant rabbit does did not significantly affect by dietary Gum Arabic. While, daily feed intake of lactating rabbit does increased (P<0.05) with increasing dietary Gum Arabic level, where rabbit does fed diets containing 1 and 1.5 % Gum Arabic achieved the highest values.
(8) Letter size at weaning was significantly higher with rabbit fed Gum Arabic in diets than those fed control diet (6.33 vs. 7.07; P<0.001, as average).
(9) The mortality rate of the pups during the lactation period was higher in the control diet compared with diets with 0.5, 1 and 1.5% Gum Arabic (4.90 vs. 1.96, 2.26 and 1.28%; P<0.05, respectively).
(10) The best value of relative revenue was found in the rabbits fed diet containing 1% Gum Arabic (113%), followed by those fed diet containing 0.5% Gum Arabic (108%), but the poorest value was recorded with those fed control diet (100%).
Thus it could be concluded that dietary supplementation of Gum Arabic significantly improved productive and reproductive performance of rabbits does during pregnancy and lactation periods and minimal mortality of kits. Therefore, it could be recommended providing rabbit does diet with Gum Arabic up to 1% is advisable under Egyptian environmental conditions.