试验旨在研究日粮中添加番茄渣对育肥猪生长性能、抗氧化性能和经济效益的影响.采用单因子试验设计,选择体重为(95.20±3.95)kg的杜洛克猪×长白猪×大白猪育肥母猪80头,随机分为4组,每组4个重复,每个重复5头猪:对照组喂基础日粮,Ⅰ、Ⅱ、Ⅲ组在基础日粮中分别添加100、200、300 g/(头·d)番茄渣.试验期为37 d.结果显示:与对照组比,Ⅰ组平均日增重和平均日采食量分别增加8.93%、18.81%(P<0.01),Ⅰ组料重比较对照组降低11.03%,其他组间差异不显著(P>0.05);Ⅱ组干物质和粗灰分表观消化率分别增加5.66%(P<0.05)、14.81%(P<0.01),Ⅱ、Ⅲ组粗纤维表观消化率极显著降低9.25%、11.88%(P<0.01),各组间粗蛋白质、粗脂肪表观消化率无显著差异(P>0.05);Ⅱ、Ⅲ组总超氧化物歧化酶(SOD)活性分别极显著增加了40.99%、36.54%(P<0.01),Ⅰ、Ⅱ、Ⅲ组丙二醛(MDA)含量均显著降低(P<0.05),各组血清总抗氧化能力(T-AOC)、谷胱甘肽(GSH)活性无显著差异(P>0.05);Ⅰ组增重收入586.26元/头,较对照组、Ⅱ组、Ⅲ组分别高48.06、52.20、52.92元;Ⅰ组利润最高,为466.90元.综上所述,添加番茄渣能够提高育肥猪生长性能、养分表观消化率、抗氧化性能及经济效益,但需控制用量.
This study was aimed to study the effects of tomato pomace on growth performance,antioxidant capacity and economic benefit of finishing pigs.80 Doroc pig× Landrace pig×Yorkshire pig crossbreeding finishing pigs with(95.20±3.95)kg body weight were chosen and divided into four groups with four repeats per groups and 5 pigs per repeat.The pigs in control group were fed with basal diet,others in groups Ⅰ,Ⅱ and Ⅲ were fed basal diet with 100,200 and 300 g/d tomato pomace supplementation,respectively.The test lasted for 37 d.The results showed that compared with control group,the ADG and ADFI of group Ⅰ were increased by 8.93%and 18.81%(P<0.01),respectively,while the F/G of group Ⅰ was decreased by 11.03%than control group(P<0.05).The nutrient apparent digestibility of dry matter and crude ash in groupⅡ were increased by 5.66%(P<0.05)and 14.81%(P<0.01),respectively.The crude fiber apparent digestibility of groups Ⅱand Ⅲ were significantly reduced by 9.25%and 11.88%(P<0.01),while the digestibility of crude protein and crude fat had no significant difference among the four groups(P>0.05).The SOD activity of groups Ⅱ and Ⅲ were significantly increased by 40.99%and 36.54%(P<0.01),respectively,and the MDA concent in groups Ⅰ,Ⅱ and Ⅲ were significantly decreased(P<0.05),while the serum T-AOC and GSH activity had no significant difference among the four groups(P>0.05).The weight gain income of group Ⅰ was 586.26 yuan/head,increased by 48.06,52.20 and 52.92 yuan than control group,groups Ⅰ and Ⅱ,respectively.The profit of groupⅠ was the highest(466.90 yuan).In conclusion,tomato pomace supplementation could improve growth performance,nutrient apparent digestibility,antioxidant capacity and the economic benefit,but the content should be controlled.