تعيين ارزش غذايي و ضريب هشم ظاهري باگاس و باگاس غني شده

Determination of nutritive value and apparent digestibility in Bagasse and treated Bagasse

This study was conducted to determine the apparent digestibility and digestible energy of bagasse. Treated bagasse (with urea) and alfalfa, and also to evaluate the effect of treating on nutritive value of bagasse. A complete randomized block design with 3 treatments and 6 blocks was used, and 18 mature male sheep were kept in 18 metabolic boxes. The determination of digestibility was done according to the method of direct use of animal (in vivo) with complete collection of feces. The data of digestion coefficient were analysed and the mean of treatments tested (duncan test) at the end of experiment. According to these results, bagasse has low in crud protein percentage (1.59) and the digestion coefficient of protein also was negative. Enriching of bagasse had a very high effect on its protein that increased it to 6.21 and the protein digestion coefficient improved from -58.27 to 31.28 percent by this method. The crude fiber percentage of bagasse (47.16 percent) was higher than treated bagasse and alfalfa (37.0 and 37.9 percent), and fiber digestion coefficient was lower than treated bagasse and alfalfa. The digestion coefficient of treated bagasse showed a higher and significant improvement than alfalfa. The results between digestion coefficient and digestible energy of bagasse and treated bagasse (except digestion coeffieiont of fat) showed a significant difference (p<0.01). However it can be concluded that urea treatment of bagasse greatly improves its nutritive value and digestible energy.