How the Pineapple Leaf Residue Silage Influence the Finishing Pigs' Growing Performance and Biochemical Parameters of the Blood

mixed-copulated pigs(Du Changda) which is about 40kg and in the same age were divided into 4 groups named A,B,C,D in order to study the effects of pineapple leaf residue silage additive on the finishing pigs' performance and blood biochemical parameters.The ration in the experiment is fermented pineapple leaf residue silage which add 0%,5%,10%,15%. After 90 days feeding experiment, we evaluate the physical development, performance and blood biochemical parameters of the finishing pigs. The results demonstrated that the weight of every finishing pig in the control group A and the test group B, C, D had increased 68.76kg, 72.37kg, 70.47kg, 69.98kg. And the average daily-weight improved 766.25kg, 806.31kg, 785.25kg, 756.46kg. It showed that there was no profound effect in the fattening period of the big ,even though added 0%, 5%, 10%, 15%