金牧粮草青贮对盐池滩羊育肥增重、滩羊肉风味的影响

Effect of Jinmu grain grass silage on fattening weight gain and meat flavor of Yanchi Tan sheep

试验研究金牧粮草对盐池滩羊的育肥效果、血清生化指标和肉品质的影响。选取同期出生、同期断奶、体重相近的滩羊公羔羊70只,随机分成2组,每组7个重复,每个重复5只。在保证精料配方一致的前提下,对照组羊饲喂玉米青贮,试验组为金牧粮草青贮等量替代基础日粮的玉米青贮。试验期90 d。结果显示:与对照组相比,试验组滩羊末重和平均日增重显著升高(P<0.05)。两组滩羊血清生化指标、屠宰性能、羊肉常规营养成分差异均不显著(P>0.05)。研究表明,使用金牧粮草青贮饲喂育肥期盐池滩羊可显著提高其生长性能,提高增重和平均日增重。金牧粮草可作为一种优质的粗饲料饲喂滩羊育肥羔羊。

The experiment was conducted to study the fattening effect, serum biochemical indexes and meat quality of Yanchi Tan sheep. Seventy Tan sheep male lambs born and at the same time, weaned at the same time and of similar weight were randomly divided into two groups, with seven replicates in each group and five sheep in each replicate. Under the premise of ensuring the consistency of concentrate feed formula, sheep in control group were fed with corn silage, and sheep in test group were fed with Jinmu grain grass silage, which was equivalent to corn silage instead of basic diet. The test period was 90 d. The results showed that compared with control group, the final weight and average daily weight gain of test group were significantly increased(P<0.05). There was no significant difference between two groups in serum biochemical indexes, slaughter performance and routine nutrient composition of mutton(P>0.05). The study indicates that the growth performance, weight gain and average daily weight gain of Yanchi Tan sheep in fattening period can be significantly improved by feeding Jinmu cereals and grasses. Jinmu grain grass can be used as a kind of high quality roughage to feed Tan sheep fattening lambs.