The Effect of Fiberus and Nonfiberus Carbohydrate on yield Efficiency in Milking Buffalo

This project was conducted on 6 Azeri Buffalo (560 kg BW) in a Latin square 33ýÃ change over design, in order to study the effect of different levels of fiberus and nonfiberus carbohydrate content of diets on performance of lactating buffalo, at Jabal Buffalo Breeding Center of urmia in west Azerbaijan province, Iran. The buffaloes were in third parities and inseminated using Heat Synchronized Technic to have synchronized calving. The treatments were iso energy and iso nitrogenous rations with 34, 45 and 52 percent of fibrous carbohydrate (NDF) and 26.7, 34 and 45.2 percent of nonfibrous carbohydrate respectively. Forage and concentrate ratio for treatments were 65:35, 55:45 and 45:55 respectively. The results showed that the daily dry mater intake (DDMI) was significantly (p0.05) different between treatments. The buffaloes had significantly higher DDMI when fed treatment 3 than the two other treatments (17.5 kg vs. ). And DDMI was lowest when they fed treatment 1. Also NDF consumption was affected by treatments so that the animals of treatment 1 had significantly highest NDF consumption. When the buffaloes fed treatment 2 they had the highest milk production (8.97 kg/d milk or 9.97 kg/d 6%FCM production) also these animals had the best fed conversion ratio (FCR) with respect to the other treatments (FCR for FCM was 1.7).There were no significantly difference between treatments on milk compositions, but treatment 1 had higher milk fat (7.1 %) than the other treatments because of its high percent of roughage. The level of milk fat was decreased by decreasing roughage percent in other treatments. Milk protein was increased scarcely with increasing of concentrates in treatments, and treatment 3 had the highest milk protein between the treatments. There were no specific trends on lactose and SNF between treatments, but both of them were high in treatment 2