不同颗粒日粮对滩羊育肥羊生长性能、养分表观消化率及血清生化指标的影响

doi:10.12160/j.issn.1672-5190.2021.01.006

畜牧与饲料科学 ›› 2021, Vol. 42 ›› Issue (1): 29-33.doi: 10.12160/j.issn.1672-5190.2021.01.006

不同颗粒日粮对滩羊育肥羊生长性能、养分表观消化率及血清生化指标的影响

马宁¹, 许迟¹, 叶均安², 徐宁宁², 赵元¹, 寇启芳³, 吴仙花¹, 李博宁¹, 赵, 莉¹, 何立荣¹

1.宁夏大北农科技实业有限公司,宁夏银川 750200;
2.浙江大学,浙江杭州 310058;
3.红寺堡区天源良种羊繁育养殖有限公司,宁夏吴忠 751900

收稿日期:2020-10-13 发布日期:2021-02-18
通讯作者: 何立荣（1986-）,男,硕士,主要从事反刍动物营养与饲料科学研究工作。
作者简介:马宁（1995-）,男,主要从事反刍动物营养与饲料科学研究工作。
基金资助:
宁夏回族自治区重点研发计划项目“基于区域资源开发滩羊系列颗粒饲料及其产业化应用技术与示范”（2019BBF02002）。

Effects of Different Pelleted Diets on Growth Performance, Nutrient Apparent Digestibility and Serum Biochemical Indexes in Fattening Tan Sheep

MA Ning¹, XU Chi¹, YE Jun-an², XU Ning-ning², ZHAO Yuan¹, KOU Qi-fang³, WU Xian-hua¹, LI Bo-ning¹, ZHAO Li¹, HE Li-rong¹

1.Ningxia Dabeinong Technology Industrial Co.,Ltd.,Yinchuan 750200,China;
2.Zhejiang University,Hangzhou 310058,China;
3.Hongsipu District Tianyuan Fine Breed Sheep Breeding Co.,Ltd.,Wuzhong 751900,China

Received:2020-10-13 Published:2021-02-18

摘要/Abstract

摘要： 旨在探究不同颗粒日粮对育肥羊生长性能、养分表观消化率及血清生化指标的影响。选取体重相近、（70±10）日龄的滩羊羯羔羊60只,随机分为4组：对照组（n=15）、试验Ⅰ组（n=15）、试验Ⅱ组（n=15）、试验Ⅲ组（n=15）。对照组饲喂自配全混合日粮（40%自配精饲料+60%自配粗饲料）,试验Ⅰ组饲喂50%自配全混合日粮（20%自配精饲料+30%自配粗饲料）+50%育肥羊全混合颗粒饲料,试验Ⅱ组饲喂育肥羊全混合颗粒饲料,试验Ⅲ组饲喂45%颗粒化精补料+55%草颗粒饲料。饲喂试验预试期16 d,正试期87 d。测定各组育肥羊的试验初重和试验末重,计算试验期间的平均日增重。记录各组育肥羊的采食情况,计算平均日采食量和料重比。饲喂试验结束时,采用常规方法测定并比较各组干物质、有机物、粗蛋白质和中性洗涤纤维的表观消化率,以及血清生化指标。结果表明,试验Ⅱ组的平均日增重最高,显著（P<0.05）高于试验Ⅰ组和试验Ⅲ组,极显著（P<0.01）高于对照组;试验Ⅱ组的平均日采食量显著（P<0.05）低于试验Ⅰ组和对照组;试验Ⅱ组的料重比最低,分别比对照组、试验Ⅰ组和试验Ⅲ组降低了60.63%、35.69%、9.41%。试验Ⅱ组的干物质、有机物、粗蛋白质和中性洗涤纤维的表观消化率均高于其他3组,其中,粗蛋白质的表观消化率与其他3组差异均显著（P<0.05）。各组育肥羊血清生化指标差异均不显著（P>0.05）。综上提示,饲喂全混合颗粒日粮能够改善滩羊育肥羊生长性能,提高养分表观消化率,对育肥羊健康无明显影响。

关键词: 滩羊, 颗粒日粮, 生长性能, 养分表观消化率, 血清生化指标

Abstract: This study aimed to assess the effects of different pelleted diets on growth performance, nutrient apparent digestibility and serum biochemical indexes in fattening sheep. A total of 60 wether lambs at ages of 70±10 days of Tan sheep with similar weights were selected and randomly divided into control group （n=15）, experimental group Ⅰ （n=15）, experimental group Ⅱ （n=15） and experimental group Ⅲ （n=15）. The control group fed 100% self-prepared total mixed ration （40% self-prepared concentrate + 60% self-prepared forage）, experimental group Ⅰ fed 50% self-prepared total mixed ration （20% self-prepared concentrate + 30% self-prepared forage） + 50% commercially available total mixed pelleted diet for fattening sheep, experimental group Ⅱ fed 100% commercially available total mixed pelleted diet for fattening sheep, and experimental group Ⅲ fed 45% pelleted concentrate supplement + 55% pelleted forage. The feeding experiment included a 16 days pre-test period and an 87 days formal test period. The experimental fattening sheep in different groups were weighed at the beginning and end of the experiment, and the average daily gains during the feeding experiment were calculated. The feed intakes were observed and recorded, and the average daily feed intakes and feed/gain were calculated. At the end of the feeding experiment, the apparent digestibility of dry matter, organic matter, crude protein and neutral detergent fiber as well as the serum biochemical indexes were determined using routine methods. The indictors associated with growth performance, nutrient apparent digestibility and serum biochemical indexes among different groups were statistically compared. The results showed that the highest average daily gain was observed in experimental group Ⅱ, which was significantly （P<0.05） higher than those of experimental group Ⅰ and experimental group Ⅲ, and was extremely significantly （P<0.01） higher than that of control group; the average daily feed intake of experimental group Ⅱ was significantly （P<0.05） lower than those of experimental group Ⅰ and control group; the experimental group Ⅱ had the lowest feed/gain, which was decreased by 60.63%, 35.69% and 9.41% compared to control group, experimental group Ⅰ and experimental group Ⅲ, respectively. The apparent digestibility of dry matter, organic matter, crude protein and neutral detergent fiber of experimental group Ⅱ were higher than those of the other three groups, and significant （P<0.05） difference was observed in apparent digestibility of crude protein. There were no significant （P>0.05） differences in serum biochemical indexes among different groups. In summary, feeding total mixed pelleted diet improves the growth performance and increases the nutrient apparent digestibility of the fattening Tan sheep, and has no obvious affection on their health.

Key words: Tan sheep, pelleted diet, growth performance, nutrient apparent digestibility, serum biochemical indexes

中图分类号:

S826.925

马宁, 许迟, 叶均安, 徐宁宁, 赵元, 寇启芳, 吴仙花, 李博宁, 赵, 莉, 何立荣. 不同颗粒日粮对滩羊育肥羊生长性能、养分表观消化率及血清生化指标的影响[J]. 畜牧与饲料科学, 2021, 42(1): 29-33.

MA Ning, XU Chi, YE Jun-an, XU Ning-ning, ZHAO Yuan, KOU Qi-fang, WU Xian-hua, LI Bo-ning, ZHAO Li, HE Li-rong. Effects of Different Pelleted Diets on Growth Performance, Nutrient Apparent Digestibility and Serum Biochemical Indexes in Fattening Tan Sheep[J]. Animal Husbandry and Feed Science, 2021, 42(1): 29-33.

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不同颗粒日粮对滩羊育肥羊生长性能、养分表观消化率及血清生化指标的影响

Effects of Different Pelleted Diets on Growth Performance, Nutrient Apparent Digestibility and Serum Biochemical Indexes in Fattening Tan Sheep

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