Xinjiang Agricultural Sciences ›› 2024, Vol. 61 ›› Issue (8): 2054-2062.DOI: 10.6048/j.issn.1001-4330.2024.08.026

• Plant Protection · Facility Agriculture · Animal Husbandry Veterinarian · Agricultural Eeconomy • Previous Articles     Next Articles

Effects of compound additives on growth performance, rumen fermentation and apparent nutrient digestibility of sheep in cold season

ZHAO Chen1,2(), WANG Yan1, Abuxiaheman Mubalake1, QIN Rongyan1, CHEN Xiangyu1, LIANG Jiandi1,2, WANG Lele1, ZHANG Zhijun1, WANG Chengmin1, WANG Wenqi1(), Shalitanati 3   

  1. 1. Feed Research Institute,Xinjiang Academy of Animal Sciences,Urumqi 830011,China
    2. College of Animal Science,Xinjiang Agricultural University,Urumqi 830052,China
    3. Xinjiang Mustang Breeding Research Center,Changji Xinjiang 831700,China
  • Received:2024-01-29 Online:2024-08-20 Published:2024-09-19
  • Correspondence author: WANG Wenqi
  • Supported by:
    Tianshan Youth Program-the Training Project of Excellent Young Scientific and Technological Talents(2020Q036);The National Mutton Sheep Industrial Technology System Project(CARS-38)

复合添加剂对冷季绵羊瘤胃发酵及养分表观消化率的影响

赵晨1,2(), 王彦1, 阿不夏合满·穆巴拉克1, 秦荣艳1, 陈翔宇1, 梁见弟1,2, 王乐乐1, 张志军1, 王承敏1, 王文奇1(), 沙丽塔娜提3   

  1. 1.新疆畜牧科学院饲料研究所,乌鲁木齐 830011
    2.新疆农业大学动物科学学院,乌鲁木齐 830052
    3.新疆野马繁殖研究中心,新疆昌吉 831700
  • 通讯作者: 王文奇
  • 作者简介:赵晨(1997-),男,河南商丘人,硕士研究生,研究方向为动物营养与饲料科学,(E-mail) 1053417271@qq.com
  • 基金资助:
    天山青年计划—优秀青年科技人才培养项目(2020Q036);国家肉羊产业技术体系项目(CARS-38)

Abstract:

【Objective】 To study the effects of compound additives on rumen fermentation. 【Methods】 Sixty 6-month-old Altay rams with similar body weight [(39.64 ± 2.72) kg] and good health were randomly divided into one control group and three compound additive groups (E1 group, E2 group and E3 group), with 15 sheep in each group. The CON group was fed with basic diet, E1 group was added with 2.2% compound additive I (seabuckthorn leaf powder: ammonium chloride: glutamine = 15:5:2), E2 group was added with 2.2% compound additive II (seabuckthorn leaf powder: ammonium chloride: guanylacetic acid = 15:5:1), and E3 group was added with 2.2% compound additive III (seabuckthorn leaf powder: ammonium chloride: glutamine: guanylacetic acid = 15:5:2:1). The pre-trial period was 15 days and the pilot period was 30 days. 【Results】 The results showed that(1) The average daily feed intake of E1, E2 and E3 groups was significantly higher than that of control group (P<0.05 or P<0.01). The ratio of feed to gain in E1 and E3 groups was significantly lower than that in control group during the first 15 days (P<0.01). (2) The acetic acid/propionic acid levels in the E1 group were significantly higher than those in the E3 group (P<0.05); The concentration of isovaleric acid in E2 group was significantly higher than that in the control group (P<0.05); There was no significant difference in other rumen fermentation parameters between groups. (3) The E1 group had the highest apparent digestibility of dry matter, organic matter, crude protein, neutral detergent fiber, acidic detergent fiber, and total energy, which was significantly higher than those of the control group (P<0.01). The E2 group had the highest apparent digestibility of crude fat, which was significantly higher than that of the control group (P<0.01). 【Conclusion】 It can be seen that adding composite additives to the diet helps improve the apparent nutrient digestibility of cold season sheep. In summary, the application effect of composite additive I (seabuckthorn leaf powder: ammonium chloride: glutamine=15:5:2) in cold season sheep production is good.

Key words: cold stress; anti cold stress additive; rumen fermentation; apparent digestibility of nutrients; sheep

摘要:

【目的】研究复合添加剂对冷季绵羊瘤胃发酵及养分表观消化率的影响。【方法】选用体重[(39.64±2.72) kg]相近、健康状况良好的6月龄阿勒泰羊公羊60只,随机分为1个对照组和3个复合添加剂组(E1组、E2组、E3组),每组15只羊。对照组饲喂基础饲粮,E1组在基础饲粮中添加2.2%的复合添加剂Ⅰ(沙棘叶粉:氯化铵:谷氨酰胺=15:5:2),E2组在基础饲粮中添加2.2%的复合添加剂Ⅱ(沙棘叶粉:氯化铵:胍基乙酸=15:5:1),E3组在基础饲粮中添2.2%的复合添加剂Ⅲ(沙棘叶粉:氯化铵:谷氨酰胺:胍基乙酸=15:5:2:1)。预试期15 d,正试期30 d。【结果】(1)整个试验阶段,E1、E2和E3组的平均日采食量显著或极显著高于对照组(P<0.05或P<0.01);E1和E3组第1~15 d料重比极显著低于对照组(P<0.01)。(2)E1组的乙酸/丙酸显著高于E3组(P<0.05);E2组的异戊酸浓度显著高于对照组(P<0.05);其它瘤胃发酵参数组间差异不显著。(3)E1组的干物质、有机物、粗蛋白、中性洗涤纤维、酸性洗涤纤维及总能的表观消化率最高,极显著高于对照组(P<0.01),E2组粗脂肪的表观消化率最高,极显著高于对照组(P<0.01)。饲粮中添加复合添加剂有助于提高冷季绵羊的养分表观消化率。【结论】复合添加剂Ⅰ(沙棘叶粉:氯化铵:谷氨酰胺=15:5:2)在冷季绵羊生产中的应用效果较好。

关键词: 冷应激, 抗冷应激添加剂, 瘤胃发酵, 养分表观消化率, 绵羊

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