关键词: 料型;公驴;生产性能;经济效益;育肥后期

Abstract: In order to study the effect of powder feed and pellet feed on the productive performance of late fattening donkey, a total of 30 late fattening male donkeys with similar weight and age were chosen and randomly divided into two groups. There were three replicates for each group and five donkeys for each replicate. One of the two groups was fed with powder feed and the other group was fed with pellet feed. The feeding experiment lasted for 30 days. At the end of the experiment, the average daily gain of the late fattening donkeys in both groups during the whole period were determined and statistically assessed, and the economic benefits of the two groups were measured according to the current price and were compared. Furthermore, a 3-day-long digestion test was carried out at the end of the experiment. The results showed that the average daily gain and crude protein digestibility of the pellet feed group were increased by 4.61% （P〈0.05） and 8.40% （P〈0.05） compared to the powder feed group, respectively; the feeding economic benefit of the pellet feed group was 12.12 Yuan per donkey less than that of the powder feed group. It can be concluded from the results that the power feed performed better in economic benefit than pellet feed for late fattening male donkeys.