为研究青贮油菜在生长期藏猪饲粮中的应用效果,试验选择40头平均体重在(7.45±0.78)kg的健康状况良好的生长期藏猪,随机分成5个处理,每个处理4个重复,每个重复2头猪,分别饲喂不同添加比例(0、10%、20%、30%与40%)的青贮油菜饲粮.预饲期7 d,试验期28 d,自由采食与饮水.结果表明:随着饲粮中青贮油菜比例的升高,藏猪平均末重、全期增重、平均日增重不断降低,而饲喂基础平均日采食量、干物质基础平均日采食量、料肉比不断增加.与对照组(处理1)相比,添加10%与20%青贮油菜组藏猪的平均末重、全期增重、干物质料肉比、粗灰分表观消化率差异不显著(P>0.05),而干物质、粗蛋白质与粗脂肪表观消化率显著低于对照组(P<0.05),添加30%与40%青贮油菜,全期增重、平均日增重、料肉比、干物质、粗蛋白质与粗脂肪表观消化率均显著降低(P<0.05).结果说明,青贮油菜可用于生长期藏猪饲粮配制,添加10%~ 20%时可保障生产性能,并提高经济效益.%This study was conducted to investigate the effect of diets with silage rape in growing Tibetan pigs. Selected 40 healthy growing Tibetan pigs with body weight(7.45±0.78)kg into 5 groups with 4 replicates per group and 2 pigs per replicate. Pigs were fed the diets with different proportion of silage rape(0%,10%,20%,30% and 40%,respectively).The test lasted for 28 days after 7 days adaptation,fed and water ad libitum. The results showed that with the silage rape ration increasing in the diet,the average final body weight(FBW),total test period body weight gain(TG),average daily gain (ADG)of growing Tibetan pigs decreased,while the average daily feed intake as fed basis(FB-ADFI),average daily feed intake as dry matter basis(DM-ADFI)and feed gain ratio(F/G)increased. Compared with the control group(treatment 1), there were no significance on the FBW,TG,DM-F/G,and Ash apparent digestibility of growing Tibetan pigs of 10% and 20% silage rape groups(P>0.05),while DM,CP,and EE apparent digestibility were lower(P<0.05). However TG,ADG, F/G,DM,CP,and EE apparent digestibility of 30% and 40% silage rape groups were significantly decreased(P<0.05)The results indicated that the silage rape could be used for preparing the diet of growing Tibetan pigs,which can ensure performance and improve the economic benefit when the feeding ratio is 10% to 20%.
展开▼
