淀粉浆水喂猪可行性研究(一)——淀粉浆水(含亚硫酸)喂猪的毒性观察

THE PRACTICABILITY RESEARCHES ON FEEDING STARCHY PULPS IN PIGS(Ⅰ)——The toxicity observation of starchy pulps(Contain sulphite)feeding in pigs.

选用12头杂种断奶猪,随机分成三组,第Ⅰ组对照,喂全价基础日粮;第Ⅱ组参照,喂第Ⅰ组日粮,内加0.5%亚硫酸氢钠(实际上 SO_2含量为0.35%),第Ⅲ组试验,喂第Ⅰ组日粮的一半,其余用淀粉浆水补充。整个实验历期为214天(30周)。结果表明:日粮中含一定景的亚硫酸,若给予相应含量的维生素 B_1,则其中亚硫酸对猪生长不呈现明显影响,以淀粉浆水代50%含足量维生素 B_1的配合日粮,是安全可行的。虽增重较慢,但成本低,有较好经济效益,对开发饲料资源和环境保护均有现实意义。血液丙酮酸值和血、尿硫胺含量,可作为淀粉浆水毒性的早期监测指标。

Selected 12 cross-breed pigs at weanling age and divided them into threegroups,at random.GroupⅠ,Control:feeding full nutritive value base diets.Group Ⅱ,reference:feeding the same diets as group Ⅰ and 0.5% sodium bis-ulfite(actually it Contains So_2 0.35%)is added.Group Ⅲ,test:feeding a halfdiets of group Ⅰ,and the rest is supplied with starchy pulps.The whole periodis 214 days(30wk).The result shows that:if a proper amount of vitamin B_1is added to diets containing corresponding amount of sulphite,the sulphite willnot obviously affect on pigs growing.So,it is safe and practical to use thestarchy pulps instead of 50% diets containing adequate vitamin B_1.Despite thepig-weight rise slowerly,but the costs is lower and a better economic benefitwill be obtained.This will be an actual significance on the exploitation of feedresources and enviromnent protection.The value of the blood pyravate and thelevels of blood and urine thiamine in pigs can be served as the early-stage ob-serving targets of the starchy pulps toxicity.