studies on using sugar beet pulp

the results due to feeding different levels of SBP instead of grains to doe rabbits could be summarized as follows:1- The value of total body weight change during the experimental period showed no significant differences are detected in total or daily body weight change.2- The average conception rate (%) for three Parities were 59.98, 68.52, 80.84 and 69.96% for rabbits fed control, 25%, 50% and 75% SBP instead of grains diet, respectively.3- The litter size of doe rabbits fed different levels of SBP showed no significant differences at all stages of sulking period up to weaning.4 – The effect of parity on litter size at birth was not significant, while there were highly significant effect on litter size at the other tested ages. The highest significant values of litter size at 7, 14, 21 and weaning days were observed at the 2nd and 3rd parities compared with the 1 st parity.5 - The interaction effect between diets and parity were significant in litter size at birth, 7th and 14th days of age.6- The obtained result showed that no significant differences were detected between the different tested diets at different ages on litter weight. However litter weight showed significantly (P<0.05) differences between different parties. The average litter weight values at 14, 21 and weaning age showed highly significant (P< 0.01) differences between different parities.7- The mortality rate of the 3rd and 4th group (50 and 75% SBP) showed higher mortality rate values (29.97 and 27.57 %, respectively) than the control and the lowest SBP level.8- The data of milk yield indicated that the effect of SBP levels on the tested diets at 2 nd and 3 rd week of lactation were significant. However, no significant differences were detected at 1st and 4th week of lactation. The doe rabbits fed the control 25% and 50% of grain diet as SBP recorded the highest significantly values of milk yield (733.44, 692.97 and 692.22 g respectively) at the 3 rd week of lactation compared with the 4th diet (75% SBP) which showed the lowest value (595.0 g) of milk yield at the same stage of lactation. The higher significant value of milk yield was recorded (736.97 g) at 3 rd week and 3 rd parity compared with the values of the 1 st and 2 nd (646.63 and 651.46 g) parities at the same stage of lactation. No significant differences were detected between 1st and 2nd parity values.9- The economical feed efficiency showed that the diet which contained the higher level of sugar beet pulp (75% of grains diet) recorded nearly the same economical feed efficiency value of the control (diet without sugar beet pulp) however the other replacement levels (25 and 50 % SBP) led to lower the relative revenue values (60.43 and 59.36 %) than the control.10 - It could be concluded that sugar beet pulp can be used to replace up to 75 % of grain in doe rabbits diets without any adverse effects on its performance and economical efficiency.