| 摘要: |
| 【目的】研究黑麦草粉颗粒饲料对扬州鹅生长性能、屠宰性能和器官的影响。【方法】选择体质量相近(出壳时间和体质量基本一致)、健康的扬州鹅300只，将其随机分为对照组和试验Ⅰ、Ⅱ、Ⅲ、Ⅳ组共5组，每组3个重复，每个重复20只，分别饲喂黑麦草粉添加量（质量分数）依次为0(CK)，12%，16%，20%和24%的日粮21 d后，测定试鹅的各项生长性能和屠宰性能指标。【结果】Ⅱ和Ⅲ组试验终末体质量、平均日采食量和平均日增质量显著高于对照组(P＜0.05)，而料质量比低于对照组(P＞0.05)；试验Ⅲ组宰前活质量、屠体质量、半净膛质量、全净膛质量、腿肌质量、腿肌率、胫骨质量和胸肌质量均显著高于对照组(P＜0.05)，试验Ⅱ组的腹脂质量最低，各处理组之间的屠体率、半净膛率、全净膛率、腹脂率和胸肌率差异不显著(P＞0.05)；试验Ⅱ组的肝质量、腺胃质量和胸腺质量显著高于对照组(P＜0.05)，而试验Ⅲ和Ⅳ组的肌胃质量和胰腺质量显著高于对照组(P＜0.05)，各试验组的心质量均高于对照组，但各试验组间差异均不显著(P＞0.05)。试验Ⅲ组的空肠、盲肠、回肠长度以及肠道总长均显著大于对照组(P＜0.05)。【结论】 添加不同水平的黑麦草粉颗粒饲料均能够在一定程度上提高扬州鹅的生长性能和屠宰性能，促进肠道生长，且以添加量为20%时效果最好。 |
| 关键词: 黑麦草 扬州鹅 生长性能 屠宰性能 |
| DOI： |
| 分类号: |
| 基金项目:国家“十二五”科技支撑计划项目（2011BAD17B02） |
|
| Effects of ryegrass pellet diet on production performance and organ growth of Yangzhou geese |
|
ZHAN Jin-shun,XIA Chen,ZHAN Kang,et al
|
| Abstract: |
| 【Objective】This study investigated the effects of ryegrass pellet feed on growth performance,slaughter performance and organ growth of Yangzhou geese.【Method】A total of 300 healthy geese with similar weights were randomly divided into 5 groups with 3 replicates per group and 20 geese per replicate.The 5 groups had ryegrass levels of 0 (Control),12%,16%,20% and 24%,respectively.After 21 days, growth indexes and slaughter indexes were measured.【Result】Compared with the control group,the FBW,ADG and ADFI of groups Ⅱ and Ⅲ were significantly higher (P＜0.05),but the F/G values were lower (P＞0.05).The live weight before slaughter,slaughtering weight,semi eviscerated weight,eviscerated weight,breast muscle weight,leg muscle ratio,tibia weight and leg muscle weight of group Ⅲ were significantly higher than those of control (P＜0.05).The abdominal fat weight of group Ⅱ was the lowest.The carcass rate,semi eviscerated ratio,eviscerated ratio,abdominal fat ratio and breast muscle ratio had no differences among all groups.Compared with the control group,the liver weight,glandular stomach weight and thymus weight of group Ⅱ,as well as the muscular stomach and pancreas weight of groups Ⅲ and Ⅳ were significantly higher (P＜0.05),while the heart weight of all groups were higher.The jejunum length,cecum length,ileum length,duodenum length and length of total intestinal in group Ⅲ were also significantly higher (P＜0.05).【Conclusion】Feeding ryegrass meal improved the growth performance and slaughter performance of Yangzhou geese and the recommended rate was 20%. |
| Key words: ryegrass Yangzhou goose growth performance slaughter performance |
