Abstract:

The object of this study was to research the effect of pineapple polysaccharides which were extracted from the skin of pineapple on performance in weaned piglets. 〖JP+3〗One hundred and sixty weaned piglets〖JP〗 (80 female, 80 male), with same 〖WT〗〖LM〗

〖WT5”BZ〗age, average weight (6.50±0.07) kg, were divided into 16 pens with 10 piglets per pen according to similar pen weight. There were 4 dietary treatments, each containing 4 replicate pens. Control group piglets were feed basic dietary without pineapple polysaccharides. Treatment 1,2and 3 piglets were feed experiment dietary added pineapple polysaccharides 50, 100, 150 g/t respectively. The results showed that there was significant difference of the average daily gain weight and ratio of feed and meat in four treatments. The average feed intake of treatment 1 and treatment 2, 3 was lower than control group but there was no significant difference between different groups (P>0.05). The average daily gain weight of treatment 1,2 and 3 was higher than control group 8%(P<0.05), 15%(P<0.01), 7%(P<0.05) respectively. Ratio of feed and meat of treatment 1,2 and 3 was lower than control group 9.62%(P<0.05), 14.42%(P<0.01), 7.21%(P<0.05) respectively. Results showed that it can increase performance and disease resistance of weaned piglets by added pineapple polysaccharides and the optimum added quantity was 100 g/t in feed.

Key words: pineapple polysaccharides; weaned piglets; performance