Document Type : Original Article
Authors
1
1Sustainable development of Environment and its Project Management Department, Environmental Studies and Research Institute, University of Sadat City, Menofiya, Egypt.
2
Regional Center for Foods and feeds, Agricultural Research Center, Ministry of Agriculture.
3
Regional Center for Foods and feeds, Agricultural Research Center, Ministry of Agriculture. Egypt.
Abstract
ABSTRACT : This study was carried out to determine the effect offeeding dietary bagasse as a source of natural fiber ingredient and adsorbent for aflatoxins (AFs) in growing rabbits diets and to evaluate using dietary bagasse on growth performance, digestibility coefficients of nutrients, nutritive value, some blood constituents and economical efficiencyof New Zealand White rabbits (NZW). The study involved fifty four NZW growing rabbits of aged 5 weeks with initial body weight mean of 751.8±35.62 g.Animals were divided into nine equal groups and fed treatment diets for 8 weeks. The experimental groups were: control or basal diet (T1), basal diet supplemented with low dose of AFs (75µg total AFs/kg diet) (T2), high dose of AFs (150µg total AFs/kg diet) (T3), 3% of bagasse (T4), 6% of bagasse (T5), 3% of bagasse with low dose of aflatoxin (T6), 6% of bagasse with low dose of aflatoxin (T7), 3% of bagasse with high dose of aflatoxin (T8) and 6% of bagasse with high dose of aflatoxin (T9). Results of live body weight at 13 week of age of both T7 and T9 groups recorded numerical higher body weight value compared to control group (T1), T2 and T3 groups. T3 group recorded significantly (P<0.05) the highest daily feed consumption during periods; 5-9 and 5-13 weeks compared to control group (T1) and other groups. The best significant (P<0.05) value of the feed conversion ratio was recorded with T6 group at 9-13 weeks of age and the whole experiment period compared to T2 group. While T9 group recorded the best significant (P<0.05) value of the feed conversion ratio compared to T3 group. Also, T4 and T5 groups achieved the significant (P<0.05) better value of feed conversion compared to control group (T1). The values of DM, OM, CP, EE and NFE for T5 group were higher compared to control (T1)and T4 group. Generally, T6 group recorded significantly (P<0.05) higher values of nutrient digestibility, DCP and TDN compared to T2 group. While, T9 group recorded significantly (P<0.05) higher values of digestibility nutrients, DCP and TDN compared to T3 group. Blood constituents results showed that changes in serum total protein (TP), and albumin (ALb) of rabbits treated with two doses low and high aflatoxins (T2 and T3) caused a significant decrease in both values when compared with control group (T1) . Supplementation of 3% or 6% bagasse with low or high doses of aflatoxins (T6 to T9) showed a significant increase in both parameters when compared to groups treated with aflatoxins singly (T2 and T3). T6 and T9 groups showed a significant decrease in both parameters when compared to T2 and T3 groups. The results showed the lowest value of serum creatinine and urea obtained with T7 group < /em>. T7 and T9 groups showed a significant decrease in serum ALT, AST, ALP activity and cholesterol comparing with T2 and T3 groups.The results showed that the highest value of total PI recorded for T6 group followed by T5 group.
Conclusively, based on the results obtained in this study, it was established that using 6% of bagasse in the rations of growing rabbit's achieved improvements in growth performance parameters. At the same time, presence of bagasse alleviated the detrimental effect of aflatoxin.
Keywords
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