不同比例紫花苜蓿对育肥羊生长性能、养分表观消化率及肉品质的影响
The effects of different proportions of purple alfalfa on the growth performance,nutrient apparent digestibility,and meat quality of fattening sheep
贾文玉 1冯云霞 2李春虎 3徐琳娜 4贾晓峰 1周国乔 5张学虎6
作者信息
- 1. 高台县罗城镇畜牧兽医工作站,甘肃高台 734300
- 2. 济源产城融合示范区检验检测中心,河南济源 459000
- 3. 高台县动物卫生监督所,甘肃高台 734300
- 4. 甘肃省畜牧技术推广总站,甘肃兰州 730030
- 5. 高台县畜牧技术推广站,甘肃高台 734300
- 6. 张掖市动物卫生监督所,甘肃张掖 734000
- 折叠
摘要
文章旨在研究不同比例紫花苜蓿对育肥羊生长性能、养分表观消化率及肉品质的影响.试验将 96 只健康无病,初始体重为(47.50±2.18)kg的育肥期小尾寒羊随机分为 4 组,每组 3 个重复,每个重复 8 只.各组粗饲料中玉米秸秆和紫花苜蓿草粉的比例分别为 3∶0(对照组)、2∶1(试验I组)、1∶2(试验II组)、0∶3(试验III组),试验为期 30 d.结果表明:(1)与对照组相比,试验I组料重比显著降低 9.19%(P＜0.05),试验II组平均日增重、平均日采食量显著提高 22.98%、9.82%(P＜0.05),且料重比显著降低 10.70%(P＜0.05).(2)与对照组相比,试验I组干物质和钙消化率显著提高(P＜0.05),试验II组干物质、粗蛋白质、粗脂肪和钙消化率显著提高(P＜0.05),试验III组干物质和钙消化率显著提高(P＜0.05).(3)与对照组相比,试验I组蒸煮损失和剪切力显著降低(P＜0.05),试验II组滴水损失、蒸煮损失和剪切力显著降低(P＜0.05),试验III组蒸煮损失显著降低(P＜0.05).结论:育肥羊粗饲料中玉米秸秆和紫花苜蓿草粉的最佳比例为 1∶2,其能提高育肥羊生长性能,改善养分表观消化率和肉品质.
Abstract
To investigate the effects of different proportions of alfalfa on the growth performance,nutrient apparent digestibility,and meat quality of fattening sheep.96 healthy and disease-free small tailed Han sheep with an initial weight of(47.50±2.18)kg were selected for the experiment.They were randomly divided into 4 groups using a single factor random grouping method,with 3 replicates in each group and 8 sheep in each replicate.The proportions of corn straw and alfalfa powder in each group of roughage were 3 ∶ 0(control group),2 ∶ 1(experimental group I),1 ∶ 2(experimental group II),and 0∶3(experimental group III),respectively,for a 30 day experimental period.The results showed that:(1)Compared with the control group,the feed to weight ratio of Group I was significantly reduced by 9.19%(P＜0.05),while the average daily weight gain and feed intake of Group II were significantly increased by 22.98%and 9.82%(P＜0.05),and the feed to weight ratio was significantly reduced by 10.70%(P＜0.05).(2)Compared with the control group,the dry matter and calcium digestibility of Group I were significantly improved(P＜0.05),while the dry matter,crude protein,crude fat,and calcium digestibility of Group II were significantly improved(P＜0.05),and the dry matter and calcium digestibility of Group III were significantly improved(P＜0.05).(3)Compared with the control group,experimental group I showed a significant decrease in cooking loss and shear force(P＜0.05),experimental group II showed a significant decrease in drip loss,cooking loss,and shear force(P＜0.05),and experimental group III showed a significant decrease in cooking loss(P＜0.05).Conclusion:The optimal ratio of corn straw and alfalfa powder in the roughage for fattening sheep is 1 ∶ 2,which can improve the growth performance of fattening sheep,improve nutrient apparent digestibility and meat quality.
关键词
紫花苜蓿/育肥羊/生长性能/养分表观消化率/肉品质Key words
purple clover/fattening sheep/growth performance/nutrient apparent digestibility/meat quality引用本文复制引用
基金项目
甘肃省农业科技项目(GNKJ-2023-33)
甘肃省农业科技项目(GNKJ-2023-34)
甘肃省农业科技项目(GNKJ-2021-41)
甘肃省陇原青年英才扶持项目(中共甘肃省省委人才工作领导小组文件)([2022]5号)
出版年
2024
国家科技期刊平台
NSTL
万方数据