Effects of forage mulberry on nutrient digestibility and growth performance of growing-finishing pigs
The aim of this study was to investigate the effects of forage mulberry on nutrient digestibility and growth performance of growing-finishing pigs.A total of 200 three-way hybrid pigs with an average weight of(19.74±0.34)kg were randomly divided into 4 treatments with 5 replicates per treatment and 10 pigs per replicate.According to the weight of the pigs,the feeding experiment was conducted in 3 stages with 45,32 and 24d cycles.The experimental diets were supplemented with 0%,3%,6%and 9%feed mulberry,respectively.During the whole experiment period,the average daily gain of growing pigs in 6%and 9%feed mulberry groups was significantly increased by 5.89%and 5.43%(P＜0.05),and the ratio of feed to gain was significantly decreased by 5.83%and 5.15%(P＜0.05),respectively.In addition,feed mulberry had no significant effect on feed intake of growing pigs at all stages and all growth stages(P＞0.05).At 20 to 50 kg stage,the apparent digestibility of crude protein,crude fat,calcium and phosphorus of growing pigs in 6%and 9%feed mulberry groups was significantly increased(P＜0.05);At 50 to 80 kg stage,the apparent digestibility of calcium and phosphorus of growing pigs in 6%and 9%feed mulberry groups was significantly increased(P＜0.05),and the apparent digestibility of phosphorus in 6%feed mulberry group was significantly increased(P＜0.05);At 80～110 kg stage,the apparent digestibility of crude protein,crude fat and calcium of growing pigs in 6%and 9%feed mulberry groups was significantly increased(P＜0.05).In conclusion,the results of this experiment show that the feed mulberry can improve the growth performance of growing pigs by promoting nutrient absorption,and the optimal feed mulberry content is 6%.
万方数据
维普
