عنوان مقاله [English]
This study was carried out to investigate the effects of different levels of date palm wastes on growth performance, nutrient digestibility, rumen and blood parameters and fiberlitic enzymes activity in fattening camels. Three male camels from Turkmen breed with an initial body weight of 335±15 kg and 24 months old were used in a rotate design for 3 periods of 21-day feeding experiment with a 14-day adaptation period and 7-days sampling. Experimental treatments included: 1) control diet (chopped Alfalfa+concentrate), 2) control diet with 10 % date palm waste and 3) control diet with 20 % date palm waste. Feed intake weighed for the last 7 days of period and faeces samples were collected for the last 3 days of period to determination of nutrient digestibility with acid insoluble ash method after drying. The results of current study showed that the experimental diets had significant effect on daily weight gain of male camels (p < 0.05). Inclusion of date palm waste in diet up to 10% increased daily weight gain (p < 0.05). There was not difference amongst treatments concerning dry matter intake and feed ratio. Date palm wastes effectively enhanced digestibility of dry matter, crude protein, neutral detergent fiber and fat (p < 0.05). Glucose, Cholesterol, High density lipoprotein (HDL), Low density lipoprotein (LDL) and Blood Urea-N (BUN) were not altered, in the male camels fed with Date palm wastes. Date palm wastes of in the diets did not significant effect on carboxy methyl-cellulase (CMM) and microcrystalline-cellulase activity in the particulate material (PM), extra cellular (EC), cellular (C) and total activity fraction, but microcrystalline-cellulase activity in the extra cellular (EC), and total activity fraction ternd to significant. There was not difference amongst treatments ruminal pH. The results showed that (DMI) and (DWG) of camels using ration 2 and nutrient digestibility of camels using ration 3 was higher than others. In conclusion, barely in fattening camels ration can be replaced at up to 20 percent without negative effects.