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作 者:张勇刚[1] 张学文 董改香[1] ZHANG Yonggang;ZHANG Xuewen;DONG Gaixiang(Shuozhou Vocational Technology College,Shuozhou 036002,Shanxi,China;Huairen Grassland and Animal Husbandry Development Center,Shuozhou 038300,Shanxi,China)
机构地区:[1]朔州职业技术学院,山西朔州036002 [2]怀仁市草牧业发展中心,山西朔州038300
出 处:《饲料博览》2024年第3期1-4,12,共5页Feed Review
基 金:山西省重点研发计划项目(201903D221097);山西省重点研发计划项目(201703D221020-4);山西省职业教育教学改革与实践研究项目(202303060)。
摘 要:为了探讨益生菌发酵中草药对育肥猪胴体性状和肉品质的影响。试验选择72头体重为(25.00±0.50 kg)的杜×长×大三元杂交猪作为试验研究对象,随机分成4组,每组3个重复,每个重复6头。试验Ⅰ组(对照组)饲喂基础日粮,试验Ⅱ组(基础日粮+1%发酵中草药)、试验Ⅲ组(基础日粮+2%发酵中草药)和试验Ⅳ组(基础日粮+3%发酵中草药)。预试期1周,正试期12周,统计分析各试验组的胴体性状指标和肉品质指标。结果显示:与试验Ⅰ组相比,试验Ⅲ和Ⅳ组显著提高了育肥猪的胴体重、屠宰率和胴体瘦肉率(P<0.05);育肥猪的肌肉嫩度、肌内脂肪和大理石花纹明显改善(P<0.05),同时提高了猪肉中蛋白水平,降低了粗脂肪和挥发性盐基氮含量(P<0.05)。结果表明,益生菌发酵中草药可以提高育肥猪的胴体性状指标及改善猪肉品质,发酵中草药适宜添加量为3%。In order to explore the effect of probiotic-fermented Chinese herbal medicine on carcass traits and meat quality of fattening pigs.A total of 72 three-way hybrid pigs(Du×Da×Chang)with body weight of(25.00±0.50 kg)were randomly divided into four groups with three replicates per group and six heads per replicate.The test groupⅠ(control group)was fed a basic diet,test groupⅡ,groupⅢand groupⅣwere fed basic diet with 1%,2%and 3%fermented Chinese herbal medicine,respectively.The pre-test period was one week,and the formal test period was 12 weeks.Carcass traits and meat quality indexes of each group were statistically analyzed.The results showed that compared with test groupⅠ,the slaughter rate and carcass lean meat rate of fattening pigs were significantly increased(P<0.05),muscle tenderness,intramuscular fat and marbling of fattening pigs were obvious improvement in groupⅢand groupⅣ(P<0.05),the protein level of pork was increased,the crude fat and volatile basic nitrogen content were decreased in groupⅢand groupⅣ(P<0.05).The study indicated that probiotic-fermented Chinese herbal medicine could improve the carcass traits and pork quality of fattening pigs,and the appropriate addition amount was 3%.
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