动物营养学报 >

2013 , Vol. 25 >Issue 6: 1243 - 1250

DOI: https://doi.org/10.3969/j.issn.1006-267x.2013.06.016

反刍动物营养 Ruminant Nutrition

杜泊羊生长期能量的代谢规律和需要量

  • 赵敏孟 ,
  • 杨在宾 ,
  • 杨维仁 ,
  • 姜淑贞 ,
  • 张桂国 ,
  • 朱文广 ,
  • 张吉林 ,
  • 巩峰
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  • 1. 山东农业大学动物科技学院,泰安 271018;
    2. 山东凯银集团股份有限公司,东营 257000

收稿日期: 2013-01-11

  网络出版日期: 2013-05-15

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Energy Metabolic Pattern and Requirements for Growing Dorper Sheep

  • ZHAO Minmeng ,
  • YANG Zaibin ,
  • YANG Weiren ,
  • JIANG Shuzhen ,
  • ZHANG Guiguo ,
  • ZHU Wenguang ,
  • ZHANG Jilin ,
  • GONG Feng
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  • 1. College of Animal Science and Technology, Shandong Agricultural University, Tai'an 271018, China;
    2. Shandong Kaiyin Co., Ltd., Dongying 257000, China

Received date: 2013-01-11

  Online published: 2013-05-15

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摘要

本试验旨在研究杜泊羊生长期能量的代谢规律和需要量。试验采用2×3的析因试验设计,即2种性别(公羊和母羊)、3种能量水平(低、中、高)。饲养试验选取断奶后15 d杜泊羊54只,公母各占1/2,公母各分为3个处理,每个处理3个重复,每个重复3只羊;试验羊自由采食,预试期7 d,正试期60 d。消化代谢试验选取断奶后15 d杜泊羊18只,公母各占1/2,每个处理3只;预试期7 d,正试期7 d。结果表明:杜泊羊公羊的总能消化率(DE/GE)与总能代谢率(ME/GE)分别为63.07%和51.80%,母羊分别为61.59%和50.76%。代谢能需要量公式如下,公羊,ME=31.338ADG+424.728W0.75,母羊,ME=40.649ADG+406.122W0.75,杜泊羊,ME=37.201ADG+399.671W0.75[式中:ME为代谢能(kJ/d),W0.75为代谢体重(kg),ADG为平均日增重(g)]。综合得出,生长期杜泊羊公羊和母羊维持代谢能分别为424.73和406.12 kJ/kg W0.75,每克日增重代谢能需要量分别为31.34和40.65 kJ;增重需要公羊低于母羊,维持需要公羊略高于母羊。生长期杜泊羊饲粮适宜消化能水平为10.66 MJ/kg(风干基础)。

关键词： 杜泊羊; 生长期; 能量; 需要量

本文引用格式

赵敏孟 , 杨在宾 , 杨维仁 , 姜淑贞 , 张桂国 , 朱文广 , 张吉林 , 巩峰 . 杜泊羊生长期能量的代谢规律和需要量[J]. 动物营养学报, 2013 , 25(6) : 1243 -1250 . DOI: 10.3969/j.issn.1006-267x.2013.06.016

Abstract

A 2×3 factorial experiment design was used to determine the energy metabolic pattern and requirements for growing Dorper sheep. The factors were sex (♂ and ♀) and energy level (low, middle and high). In feeding trial, fifty-four Dorper sheep (27♂+27♀) at 15 days after weaning were randomly allotted to 3 treatments per sex with 3 replicates in each treatment and 3 sheep per replicate. Experimental sheep were fed ad libitum. The experiment lasted for 67 days including a 7-day pre-experimental period and a 60-day experimental period. In metabolic experiment, eighteen (9♂+9♀) Dorper sheep were randomly allotted to 3 treatments per sex with 3 replicate in each treatment and 1 sheep per replicate. The experiment lasted for 14 days including a 7-day-pre-experimental period and 7-day experimental period. The results showed as follows: DE/GE and ME/GE of the ram and ewe sheep were 63.07% and 51.80%, 61.59% and 50.76%, respectively. Formulas of requirements for metabolizable energy of growing Dorper sheep were predicated as follows, ram, ME=31.338ADG+424.728W0.75, ewe, ME=40.649ADG+406.122W0.75, Dorper sheep, ME=37.201ADG+399.671W0.75(ME was metabolizable energy, ADG was average daily gain, and W0.75 was metabolic weight). In conclusion, the metabolizable energy requirments for maintenance of ram and ewe of growing Dorper sheep are 424.73 and 406.12 kJ/kg W0.75, respectively, and those for 1 g of daily weight gain are 31.34 and 40.65 kJ, respectively; ram sheep have lower metabolizable energy requirment for growth and higher metabolizable energy for maintenance than ewe sheep; dietary proper digestible energy requirment for growing Dorper sheep is 10.66 MJ/kg (air-dry basis).

Key words： Dorper sheep; growing period; energy; requirement

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