饲养模式对绵羊冷季生产效益的影响  

Influence of feeding patterns on production efficiency of sheep in the cold season

作　　者：宫旭胤[1] 吴建平[1] 张利平[1] 杨联[1] 冯明廷 赵海军[1] 杜雪林 

机构地区：[1]甘肃农业大学动物科学技术学院,甘肃兰州730070 [2]肃南裕固族自治县疾控中心,甘肃肃南735016

出　　处：《草业科学》2011年第1期141-145,共5页Pratacultural Science

基　　金：中国-澳大利亚合作(ACIAR)项目;GEF应用研究项目;甘肃省教育厅科研项目(0802-04);农业部行业专项(200903060)

摘　　要：在肃南裕固族自治县选择草场类型一致,绵羊(Ovisaries sp.)体况相近的3个牧户分别采取暖棚全舍饲(试验组Ⅰ),放牧+补饲(试验组Ⅱ)以及全放牧(对照组)3种饲养方式,通过测定整个繁殖周期绵羊体质量变化、母羊繁殖率和羔羊成活率指标,比较不同饲养模式对绵羊生产效益的影响。结果表明,3种饲养模式下越冬母羊体质量损失差异显著,次年配种时3组母羊体质量分别比上年增加2.76、1.91和-1.24 kg。试验组受胎率及产羔率均显著高于对照组(P<0.01)。试验组Ⅰ的产毛量极显著高于试验组Ⅱ和对照组(P<0.01),试验组Ⅱ和对照组间差异不显著(P>0.05)。经济效益分析表明,试验组Ⅰ的饲养成本和纯收入均最高,对照组最低,但收入与成本的比值对照组最高,试验组I最低。Sheep in three households were selected with same pasture type and similar sheep body condition in Sunan County, one household fed sheep in the heated greenhouses from Jan. to Apr. （Group Ⅰ ）, and the second household grazed sheep in pasture in day and supplement after come back （Group Ⅱ）, another household grazed only, act as control group. Sheep＇s body weight loss in total reproductive cycle, ewes＇ reproductive rate and lamb living rate were recorded to determine the influence of feeding patterns on production efficiency of sheep. The results of this study showed the difference of ewes＇ body weight loss among three groups was obvious after cold season, and the body weight of Group Ⅰ , Ⅱ and control increased 2.76, 1.91 and - 1.24 kg in next mating time respectively. Conception rate and pregnancy rate of Group Ⅰ and Ⅱ were significantly higher than that of control group. Wool yield of Group Ⅰ was significantly higher than that of Group Ⅱ and control （P〈0.01）. However, there was not significant difference between Group Ⅱ and control （P〉 0.05）. Economic analysis showed that the feeding costs and the net income of Group Ⅰ were the highest, and those of control was the lowest. However, the ratio of revenue and cost in control was the highest, and those of Group Ⅰ was the lowest.

关 键 词：饲养方式 冷季 绵羊 体质量 经济效益 

分 类 号：S826.44[农业科学—畜牧学]